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Merge remote-servers into main — v2.0 release

Browse Source 
Brings multi-window + multi-server + remote-SSH support to main,
plus the full correctness/UX/concurrency polish pass.

Two commits land:
- 00ca722 feat: multi-window + remote SSH server support (Phases 0-4)
- 5920923 feat: v2.0 — correctness + UX polish on multi-server + remote SSH

See releases/v2.0.0/RELEASE_NOTES.md for the user-facing summary.
This commit is contained in:
Alan Wizemann
2026-04-19 13:07:22 -07:00
parent 679dedf132 5920923d92
commit 4212200dca
108 changed files with 5106 additions and 1043 deletions
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README.md
+23 -6
View File
@@ -17,15 +17,30 @@
<a href="https://www.buymeacoffee.com/awizemann"><img src="https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png" alt="Buy Me a Coffee" height="28"></a>
</p>
## What's New in 1.6
## What's New in 2.0
- **Multi-server** — Manage multiple Hermes installations (local + any number of remotes) from one app. Each window binds to one server; open them side-by-side.
- **Remote Hermes over SSH** — Every feature that worked against your local `~/.hermes/` now works against a remote host. File I/O routes through `scp`/`sftp`; chat ACP runs over `ssh -T`; SQLite is served from atomic `.backup` snapshots pulled on file-watcher ticks.
- **Chat UX overhaul** — No more white-screen flash on first message, no more scroll jumping into whitespace during streaming, failed prompts explain themselves instead of silently spinning forever.
- **Correctness pass** — Fixed remote WAL error spam, stale-snapshot session resume, auto-resume of dead cron sessions, 230+ Swift 6 concurrency warnings.
See the full [v2.0.0 release notes](https://github.com/awizemann/scarf/releases/tag/v2.0.0).
### Previously, in 1.6
- **Platforms** — Native GUI setup for all 13 messaging platforms, no more hand-editing `.env`
- **Credential Pools** — Fixed OAuth flow and API-key handling; pick providers from a catalog
- **Model Picker** — Hierarchical browser backed by the 111-provider models.dev cache
- **Settings tabs** — 10 organized tabs covering ~60 previously hidden config fields
- **Configure sidebar** — New section for Personalities, Quick Commands, Plugins, Webhooks, Profiles
- **Configure sidebar** — Personalities, Quick Commands, Plugins, Webhooks, Profiles
See the full [v1.6.0 release notes](https://github.com/awizemann/scarf/releases/tag/v1.6.0).
See the [v1.6.0 release notes](https://github.com/awizemann/scarf/releases/tag/v1.6.0) for the full 1.6 series.
## Multi-server, one window per server
Scarf 2.0 is a multi-window app. Each window is bound to exactly one Hermes server — your local `~/.hermes/` is synthesized automatically, and you can add remotes via **File → Open Server…** → **Add Server** (host, user, port, optional identity file). Open a second window for a different server and the two run side-by-side with independent state.
Remote Hermes is reached over system SSH — the same `~/.ssh/config`, ssh-agent, ProxyJump, and ControlMaster pooling your terminal uses. File I/O flows through `scp`/`sftp`; SQLite is served from atomic `sqlite3 .backup` snapshots cached under `~/Library/Caches/scarf/snapshots/<server-id>/`; chat (ACP) tunnels as `ssh -T host -- hermes acp` with JSON-RPC over stdio end-to-end. Everything in the feature list below works against remote identically to local.
## Features
@@ -77,7 +92,8 @@ Custom, agent-generated dashboards for any project. Define stat boxes, charts, t
- macOS 14.6+ (Sonoma)
- Xcode 16.0+
- [Hermes agent](https://github.com/hermes-ai/hermes-agent) v0.6.0+ installed at `~/.hermes/` (v0.9.0 recommended for full feature support)
- [Hermes agent](https://github.com/hermes-ai/hermes-agent) v0.6.0+ installed at `~/.hermes/` on each target host (v0.9.0+ recommended for full feature support)
- For remote servers: SSH access (key-based), `sqlite3` on the remote (for atomic DB snapshots), and the `hermes` CLI resolvable from the remote user's `PATH` or at a path you specify per server.
### Compatibility
@@ -88,9 +104,10 @@ Scarf reads Hermes's SQLite database and parses CLI output from `hermes status`,
| v0.6.0 (2026-03-30) | Verified |
| v0.7.0 (2026-04-03) | Verified |
| v0.8.0 (2026-04-08) | Verified |
| v0.9.0 (2026-04-13) | Verified (recommended for full 1.6 feature support) |
| v0.9.0 (2026-04-13) | Verified |
| v0.10.0 (2026-04-18) | Verified (recommended for full 2.0 feature support) |
Scarf 1.6 targets Hermes v0.9.0 specifically for the new Platforms, Credentials, Skills Hub, and Cron write features. Earlier Hermes versions remain supported for the monitoring and session features but may not expose every new setup form.
Scarf 2.0 targets Hermes v0.10.0 for the ACP session/fork/list/resume capabilities used by remote chat. Earlier Hermes versions remain supported for monitoring, sessions, and file-based features; ACP-specific behavior may gracefully degrade on older agents.
If a Hermes update changes the database schema or CLI output format, Scarf may need to be updated. Check the [Health](#features) view for compatibility warnings.
releases/v2.0.0/RELEASE_NOTES.md
+58
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@@ -0,0 +1,58 @@
## What's New in 2.0
Scarf now manages **multiple Hermes installations** — your local `~/.hermes/` plus any number of remote Hermes instances reached over SSH. Every feature that worked on your Mac now works against a Linux server, a Mac mini on the network, or whatever other host has Hermes installed.
This is a major version bump because the entire service layer was rewritten around a `ServerContext` + `ServerTransport` abstraction, and because the window model changed from single-window-single-server to multi-window-one-server-per-window.
### Multi-server
- **Manage Servers** sheet lets you add, rename, and remove remote servers. Each entry is an SSH target (`user@host`, port, optional identity file, optional `remoteHome` override if your install isn't at `~/.hermes/`).
- Each window is bound to exactly one server. Open a second window via **File → Open Server** → pick a different server, and the two run side-by-side with independent state — chat, dashboards, activity, sessions, the lot.
- The menu bar status icon shows a summary across all registered servers (green hare = any Hermes running anywhere).
- Window-state restoration: quit + relaunch re-opens every window you had open, each reconnected to its bound server.
### Remote over SSH
- **ControlMaster connection pooling** — after the first auth, each remote primitive is a ~5ms tunnel call. Uses the system `ssh`, `scp`, `sftp` so your `~/.ssh/config`, ssh-agent, 1Password/Secretive SSH agents, and ProxyJump all work unchanged.
- **DB access via atomic snapshots** — Scarf runs `sqlite3 .backup` on the remote (WAL-safe, won't corrupt), flips the snapshot out of WAL mode, and pulls it down with `scp`. Snapshots are cached under `~/Library/Caches/scarf/snapshots/<server-id>/` and re-pulled when the file watcher sees a change on the remote's `state.db`.
- **ACP chat over SSH** — the Agent Client Protocol tunnel runs `ssh -T host -- hermes acp`. JSON-RPC over stdio travels end-to-end unmodified, so Rich Chat, streaming, tool calls, permission dialogs, and compression all work against the remote agent identically to local.
- **File watcher** — local uses FSEvents (instant); remote polls `stat` mtime every 3s with ControlMaster keeping the cost bounded. Views auto-refresh on any tick.
- **Cleanup on server-remove** — deleting a remote closes its ControlMaster socket (`ssh -O exit`), prunes its snapshot cache, and invalidates any process-wide caches keyed to its ID. App launch also sweeps orphaned snapshot dirs whose UUIDs are no longer in the registry.
### Chat UX overhaul
All of these were visible bugs during remote dogfooding and are now fixed on both local and remote:
- **No more white-screen flash** on the first message of a session. `RichChatView` used to swap `ContentUnavailableView` out for the message list, which tore down and recreated the entire ScrollView hierarchy. The empty state now lives inside the ScrollView itself.
- **No more scroll-jumping to whitespace** at stream start/finish. Replaced six racing `onChange`-driven scroll calls with SwiftUI's built-in `.defaultScrollAnchor(.bottom)`, which is implemented inside the layout pass and doesn't overshoot LazyVStack content.
- **Resuming a session on a remote now shows its full history.** The DB snapshot is refreshed on session-load — previously it was pulled once on first open and never again, so any messages the remote wrote since launch were invisible.
- **"Continue from last session" surfaces errors** instead of silently doing nothing when SSH is down.
- **Typing into a blank Chat always creates a new session.** Previously it auto-resumed the most recently active session in the DB, which often picked up a cron-spawned session that Hermes had already garbage-collected — producing a silent prompt failure.
- **Failed prompts now explain themselves.** When the agent returns `stopReason: "refusal"`, `"error"`, or `"max_tokens"` with no assistant output, a system message appears under your prompt explaining what happened. No more spinning "Agent working…" forever.
### Correctness — remote SQLite
- The WAL-error spam (`cannot open file at line 51044 of [f0ca7bba1c] — os_unix.c:51044: (2) open(/Users/…/state.db-wal) - No such file or directory`) is gone. `sqlite3 .backup` preserves the source DB's journal mode; the scp'd copy used to try to open a WAL sidecar that doesn't exist. The snapshot script now runs `PRAGMA journal_mode=DELETE` after `.backup` on the remote, and Scarf opens remote snapshots with `file:…?immutable=1` as defense-in-depth.
- **Concurrent snapshot dedupe** — a new `SnapshotCoordinator` actor makes sure that when Dashboard + Sessions + Activity all ask for a fresh snapshot at the same moment (e.g. on a file-watcher tick), only one SSH backup runs; the other callers await the in-flight pull and share the result.
### Under the hood
- New `ServerContext` value type flows through `.environment()` to every view and ViewModel. Every file and process operation routes through `context.makeTransport()` — `LocalTransport` (`FileManager`, `Process`, FSEvents) or `SSHTransport` (ssh, scp, sftp, mtime polling). The protocol is small enough that each transport is ~400 lines.
- Swift 6 complete-concurrency sweep: ~230 warnings reduced to 1. `ServerContext`, `HermesPathSet`, `ServerTransport`, all service inits, and every value-type accessor are explicitly `nonisolated`. Hand-written `Codable` conformances for the nine types whose synthesized conformances were inferred `@MainActor` by Swift 6's default-isolation rule (`ACPRequest`, `ACPRawMessage`, `GatewayState`, `PlatformState`, `HermesCronJob`, `CronSchedule`, `CronJobsFile`, `AuthFile`, `AuthEntry`).
- ACP cwd now comes from the *remote* `$HOME`, probed once on first connect and cached per server. Previously it passed your local Mac's home path to the ACP adapter, which only worked by coincidence when the remote username matched.
### Compatibility
Hermes v0.10.0 is now verified alongside v0.6–v0.9. Scarf builds its session/message `SELECT` columns based on an additive schema detection (`hasV07Schema`), so newer Hermes versions with extra columns don't break queries.
### Migration from 1.6.x
- Sparkle will offer the update automatically. Trigger manually via **Scarf → Check for Updates…** or the menu bar.
- Your local server is synthesized automatically — existing 1.6.x users see "Local" in the server list with no setup needed.
- `servers.json` is created on first add-remote. Location: `~/Library/Application Support/scarf/servers.json`.
- Nothing you configured in 1.6.x (OAuth tokens, credential pools, cron jobs, MCP servers, platform setup) is touched. Those live in `~/.hermes/` and remain the source of truth.
### Known limitations
- Remote file watching is 3s mtime polling (vs. FSEvents on local). If you need sub-second updates on a remote, that's a followup.
- The `session/load` ACP call against an already-deleted session returns success-with-no-body from the Hermes adapter — Scarf now detects the resulting `stopReason: "refusal"` and surfaces it, but the underlying Hermes behavior is an upstream-adapter bug that should also get a proper error response.
scarf/scarf/ContentView.swift
+55 -21
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@@ -2,40 +2,74 @@ import SwiftUI
struct ContentView: View {
@Environment(AppCoordinator.self) private var coordinator
@Environment(\.serverContext) private var serverContext
/// Per-window connection status. Constructed from the window's
/// `serverContext` once; lifetime matches the window.
@State private var connectionStatus: ConnectionStatusViewModel
init() {
_connectionStatus = State(initialValue: ConnectionStatusViewModel(context: .local))
}
var body: some View {
NavigationSplitView {
SidebarView()
} detail: {
detailView
.toolbar {
ToolbarItem(placement: .navigation) {
ServerSwitcherToolbar()
}
if serverContext.isRemote {
ToolbarItem(placement: .principal) {
ConnectionStatusPill(status: connectionStatus)
}
}
}
.onAppear {
// The actual context is injected via @Environment, which
// isn't available in `init`. Rebuild the monitor here
// the first time we know the real context. Safe to call
// repeatedly; `startMonitoring()` cancels + restarts.
if connectionStatus.context.id != serverContext.id {
connectionStatus = ConnectionStatusViewModel(context: serverContext)
}
connectionStatus.startMonitoring()
}
.onDisappear { connectionStatus.stopMonitoring() }
}
}
@ViewBuilder
private var detailView: some View {
// Each routed view receives the window's `serverContext` in its
// init so its `@State` ViewModel is constructed bound to the right
// server. This is what makes multi-window work — without it,
// every window's VMs default-construct with `.local` even though
// the surrounding env has the right context.
switch coordinator.selectedSection {
case .dashboard: DashboardView()
case .insights: InsightsView()
case .sessions: SessionsView()
case .activity: ActivityView()
case .projects: ProjectsView()
case .dashboard: DashboardView(context: serverContext)
case .insights: InsightsView(context: serverContext)
case .sessions: SessionsView(context: serverContext)
case .activity: ActivityView(context: serverContext)
case .projects: ProjectsView(context: serverContext)
case .chat: ChatView()
case .memory: MemoryView()
case .skills: SkillsView()
case .platforms: PlatformsView()
case .personalities: PersonalitiesView()
case .quickCommands: QuickCommandsView()
case .credentialPools: CredentialPoolsView()
case .plugins: PluginsView()
case .webhooks: WebhooksView()
case .profiles: ProfilesView()
case .tools: ToolsView()
case .mcpServers: MCPServersView()
case .gateway: GatewayView()
case .cron: CronView()
case .health: HealthView()
case .logs: LogsView()
case .settings: SettingsView()
case .memory: MemoryView(context: serverContext)
case .skills: SkillsView(context: serverContext)
case .platforms: PlatformsView(context: serverContext)
case .personalities: PersonalitiesView(context: serverContext)
case .quickCommands: QuickCommandsView(context: serverContext)
case .credentialPools: CredentialPoolsView(context: serverContext)
case .plugins: PluginsView(context: serverContext)
case .webhooks: WebhooksView(context: serverContext)
case .profiles: ProfilesView(context: serverContext)
case .tools: ToolsView(context: serverContext)
case .mcpServers: MCPServersView(context: serverContext)
case .gateway: GatewayView(context: serverContext)
case .cron: CronView(context: serverContext)
case .health: HealthView(context: serverContext)
case .logs: LogsView(context: serverContext)
case .settings: SettingsView(context: serverContext)
}
}
}
scarf/scarf/Core/Models/ACPMessages.swift
+74 -30
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@@ -2,39 +2,83 @@ import Foundation
// MARK: - JSON-RPC Transport
struct ACPRequest: Encodable {
let jsonrpc = "2.0"
let id: Int
let method: String
let params: [String: AnyCodable]
// Hand-written `encode(to:)` / `init(from:)` with explicit `nonisolated` so
// Swift 6's default-isolation doesn't synthesize a MainActor-isolated
// conformance — which would prevent these payloads from being encoded or
// decoded inside `ACPClient`'s actor context (the JSON-RPC read/write loop).
// The member list must stay in sync with the stored properties above.
struct ACPRequest: Encodable, Sendable {
nonisolated let jsonrpc = "2.0"
nonisolated let id: Int
nonisolated let method: String
nonisolated let params: [String: AnyCodable]
enum CodingKeys: String, CodingKey { case jsonrpc, id, method, params }
nonisolated func encode(to encoder: any Encoder) throws {
var c = encoder.container(keyedBy: CodingKeys.self)
try c.encode(jsonrpc, forKey: .jsonrpc)
try c.encode(id, forKey: .id)
try c.encode(method, forKey: .method)
try c.encode(params, forKey: .params)
}
}
struct ACPRawMessage: Decodable {
let jsonrpc: String?
let id: Int?
let method: String?
let result: AnyCodable?
let error: ACPError?
let params: AnyCodable?
struct ACPRawMessage: Decodable, Sendable {
nonisolated let jsonrpc: String?
nonisolated let id: Int?
nonisolated let method: String?
nonisolated let result: AnyCodable?
nonisolated let error: ACPError?
nonisolated let params: AnyCodable?
var isResponse: Bool { id != nil && method == nil }
var isNotification: Bool { method != nil && id == nil }
var isRequest: Bool { method != nil && id != nil }
nonisolated var isResponse: Bool { id != nil && method == nil }
nonisolated var isNotification: Bool { method != nil && id == nil }
nonisolated var isRequest: Bool { method != nil && id != nil }
enum CodingKeys: String, CodingKey { case jsonrpc, id, method, result, error, params }
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.jsonrpc = try c.decodeIfPresent(String.self, forKey: .jsonrpc)
self.id = try c.decodeIfPresent(Int.self, forKey: .id)
self.method = try c.decodeIfPresent(String.self, forKey: .method)
self.result = try c.decodeIfPresent(AnyCodable.self, forKey: .result)
self.error = try c.decodeIfPresent(ACPError.self, forKey: .error)
self.params = try c.decodeIfPresent(AnyCodable.self, forKey: .params)
}
}
struct ACPError: Decodable, Sendable {
let code: Int
let message: String
nonisolated let code: Int
nonisolated let message: String
enum CodingKeys: String, CodingKey { case code, message }
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.code = try c.decode(Int.self, forKey: .code)
self.message = try c.decode(String.self, forKey: .message)
}
}
// MARK: - AnyCodable (for dynamic JSON)
struct AnyCodable: Codable, Sendable {
let value: Any
struct AnyCodable: Codable, @unchecked Sendable {
nonisolated let value: Any
init(_ value: Any) { self.value = value }
nonisolated init(_ value: Any) { self.value = value }
init(from decoder: Decoder) throws {
// NOT marked `nonisolated`: Swift's default-isolation treats writes to a
// `let value: Any` stored property as MainActor-isolated even when the
// property is declared nonisolated (Any can't be strictly Sendable, so
// the compiler can't prove the write is safe off-main). Leaving the
// init as default-isolated silences the mutation warnings; the Decodable
// conformance is still usable from ACPClient's nonisolated read loop
// because all callers are already @preconcurrency with respect to
// `AnyCodable` (it's @unchecked Sendable).
init(from decoder: any Decoder) throws {
let container = try decoder.singleValueContainer()
if container.decodeNil() {
value = NSNull()
@@ -55,7 +99,7 @@ struct AnyCodable: Codable, Sendable {
}
}
func encode(to encoder: Encoder) throws {
func encode(to encoder: any Encoder) throws {
var container = encoder.singleValueContainer()
switch value {
case is NSNull:
@@ -79,10 +123,10 @@ struct AnyCodable: Codable, Sendable {
// MARK: - Accessors
var stringValue: String? { value as? String }
var intValue: Int? { value as? Int }
var dictValue: [String: Any]? { value as? [String: Any] }
var arrayValue: [Any]? { value as? [Any] }
nonisolated var stringValue: String? { value as? String }
nonisolated var intValue: Int? { value as? Int }
nonisolated var dictValue: [String: Any]? { value as? [String: Any] }
nonisolated var arrayValue: [Any]? { value as? [Any] }
}
// MARK: - ACP Events (parsed from session/update notifications)
@@ -154,7 +198,7 @@ struct ACPPromptResult: Sendable {
// MARK: - Event Parsing
enum ACPEventParser {
static func parse(notification: ACPRawMessage) -> ACPEvent? {
nonisolated static func parse(notification: ACPRawMessage) -> ACPEvent? {
guard notification.method == "session/update",
let params = notification.params?.dictValue,
let sessionId = params["sessionId"] as? String,
@@ -202,7 +246,7 @@ enum ACPEventParser {
}
}
static func parsePermissionRequest(_ message: ACPRawMessage) -> ACPEvent? {
nonisolated static func parsePermissionRequest(_ message: ACPRawMessage) -> ACPEvent? {
guard message.method == "session/request_permission",
let params = message.params?.dictValue,
let sessionId = params["sessionId"] as? String,
@@ -226,7 +270,7 @@ enum ACPEventParser {
// MARK: - Content Extraction
private static func extractContentText(from update: [String: Any]) -> String {
nonisolated private static func extractContentText(from update: [String: Any]) -> String {
if let content = update["content"] as? [String: Any],
let text = content["text"] as? String {
return text
@@ -234,7 +278,7 @@ enum ACPEventParser {
return ""
}
private static func extractContentArrayText(from update: [String: Any]) -> String {
nonisolated private static func extractContentArrayText(from update: [String: Any]) -> String {
if let contentArray = update["content"] as? [[String: Any]] {
return contentArray.compactMap { item -> String? in
guard let inner = item["content"] as? [String: Any] else { return nil }
scarf/scarf/Core/Models/HermesConfig.swift
+67 -30
View File
@@ -9,7 +9,7 @@ struct AuxiliaryModel: Sendable, Equatable {
var apiKey: String
var timeout: Int
static let empty = AuxiliaryModel(provider: "auto", model: "", baseURL: "", apiKey: "", timeout: 30)
nonisolated static let empty = AuxiliaryModel(provider: "auto", model: "", baseURL: "", apiKey: "", timeout: 30)
}
/// Group of display-related settings mirroring the `display:` block in config.yaml.
@@ -23,7 +23,7 @@ struct DisplaySettings: Sendable, Equatable {
var toolPreviewLength: Int
var busyInputMode: String // e.g. "interrupt"
static let empty = DisplaySettings(
nonisolated static let empty = DisplaySettings(
skin: "default",
compact: false,
resumeDisplay: "full",
@@ -54,7 +54,7 @@ struct TerminalSettings: Sendable, Equatable {
var daytonaImage: String
var singularityImage: String
static let empty = TerminalSettings(
nonisolated static let empty = TerminalSettings(
cwd: ".",
timeout: 180,
envPassthrough: [],
@@ -82,7 +82,7 @@ struct BrowserSettings: Sendable, Equatable {
var allowPrivateURLs: Bool
var camofoxManagedPersistence: Bool
static let empty = BrowserSettings(
nonisolated static let empty = BrowserSettings(
inactivityTimeout: 120,
commandTimeout: 30,
recordSessions: false,
@@ -115,7 +115,7 @@ struct VoiceSettings: Sendable, Equatable {
var sttOpenAIModel: String
var sttMistralModel: String
static let empty = VoiceSettings(
nonisolated static let empty = VoiceSettings(
recordKey: "ctrl+b",
maxRecordingSeconds: 120,
silenceDuration: 3.0,
@@ -147,7 +147,7 @@ struct AuxiliarySettings: Sendable, Equatable {
var mcp: AuxiliaryModel
var flushMemories: AuxiliaryModel
static let empty = AuxiliarySettings(
nonisolated static let empty = AuxiliarySettings(
vision: .empty,
webExtract: .empty,
compression: .empty,
@@ -170,7 +170,7 @@ struct SecuritySettings: Sendable, Equatable {
var blocklistEnabled: Bool
var blocklistDomains: [String]
static let empty = SecuritySettings(
nonisolated static let empty = SecuritySettings(
redactSecrets: true,
redactPII: false,
tirithEnabled: true,
@@ -188,7 +188,7 @@ struct HumanDelaySettings: Sendable, Equatable {
var minMS: Int
var maxMS: Int
static let empty = HumanDelaySettings(mode: "off", minMS: 800, maxMS: 2500)
nonisolated static let empty = HumanDelaySettings(mode: "off", minMS: 800, maxMS: 2500)
}
/// Compression / context routing.
@@ -198,14 +198,14 @@ struct CompressionSettings: Sendable, Equatable {
var targetRatio: Double
var protectLastN: Int
static let empty = CompressionSettings(enabled: true, threshold: 0.5, targetRatio: 0.2, protectLastN: 20)
nonisolated static let empty = CompressionSettings(enabled: true, threshold: 0.5, targetRatio: 0.2, protectLastN: 20)
}
struct CheckpointSettings: Sendable, Equatable {
var enabled: Bool
var maxSnapshots: Int
static let empty = CheckpointSettings(enabled: true, maxSnapshots: 50)
nonisolated static let empty = CheckpointSettings(enabled: true, maxSnapshots: 50)
}
struct LoggingSettings: Sendable, Equatable {
@@ -213,7 +213,7 @@ struct LoggingSettings: Sendable, Equatable {
var maxSizeMB: Int
var backupCount: Int
static let empty = LoggingSettings(level: "INFO", maxSizeMB: 5, backupCount: 3)
nonisolated static let empty = LoggingSettings(level: "INFO", maxSizeMB: 5, backupCount: 3)
}
struct DelegationSettings: Sendable, Equatable {
@@ -223,7 +223,7 @@ struct DelegationSettings: Sendable, Equatable {
var apiKey: String
var maxIterations: Int
static let empty = DelegationSettings(model: "", provider: "", baseURL: "", apiKey: "", maxIterations: 50)
nonisolated static let empty = DelegationSettings(model: "", provider: "", baseURL: "", apiKey: "", maxIterations: 50)
}
/// Discord-specific platform settings (`discord.*`). Other platforms currently have thinner schemas.
@@ -233,7 +233,7 @@ struct DiscordSettings: Sendable, Equatable {
var autoThread: Bool
var reactions: Bool
static let empty = DiscordSettings(requireMention: true, freeResponseChannels: "", autoThread: true, reactions: true)
nonisolated static let empty = DiscordSettings(requireMention: true, freeResponseChannels: "", autoThread: true, reactions: true)
}
/// Telegram settings under `telegram.*` in config.yaml. Most Telegram tuning is
@@ -243,7 +243,7 @@ struct TelegramSettings: Sendable, Equatable {
var requireMention: Bool
var reactions: Bool
static let empty = TelegramSettings(requireMention: true, reactions: false)
nonisolated static let empty = TelegramSettings(requireMention: true, reactions: false)
}
/// Slack settings under `platforms.slack.*` (and a couple of top-level keys).
@@ -253,7 +253,7 @@ struct SlackSettings: Sendable, Equatable {
var replyInThread: Bool
var replyBroadcast: Bool
static let empty = SlackSettings(replyToMode: "first", requireMention: true, replyInThread: true, replyBroadcast: false)
nonisolated static let empty = SlackSettings(replyToMode: "first", requireMention: true, replyInThread: true, replyBroadcast: false)
}
/// Matrix settings under `matrix.*`.
@@ -262,7 +262,7 @@ struct MatrixSettings: Sendable, Equatable {
var autoThread: Bool
var dmMentionThreads: Bool
static let empty = MatrixSettings(requireMention: true, autoThread: true, dmMentionThreads: false)
nonisolated static let empty = MatrixSettings(requireMention: true, autoThread: true, dmMentionThreads: false)
}
/// Mattermost settings. Mattermost is mostly driven by env vars; config.yaml
@@ -272,7 +272,7 @@ struct MattermostSettings: Sendable, Equatable {
var requireMention: Bool
var replyMode: String // "thread" | "off"
static let empty = MattermostSettings(requireMention: true, replyMode: "off")
nonisolated static let empty = MattermostSettings(requireMention: true, replyMode: "off")
}
/// WhatsApp settings under `whatsapp.*`.
@@ -280,7 +280,7 @@ struct WhatsAppSettings: Sendable, Equatable {
var unauthorizedDMBehavior: String // "pair" | "ignore"
var replyPrefix: String
static let empty = WhatsAppSettings(unauthorizedDMBehavior: "pair", replyPrefix: "")
nonisolated static let empty = WhatsAppSettings(unauthorizedDMBehavior: "pair", replyPrefix: "")
}
/// Home Assistant filters under `platforms.homeassistant.extra`. Hermes ignores
@@ -292,7 +292,7 @@ struct HomeAssistantSettings: Sendable, Equatable {
var ignoreEntities: [String]
var cooldownSeconds: Int
static let empty = HomeAssistantSettings(watchDomains: [], watchEntities: [], watchAll: false, ignoreEntities: [], cooldownSeconds: 30)
nonisolated static let empty = HomeAssistantSettings(watchDomains: [], watchEntities: [], watchAll: false, ignoreEntities: [], cooldownSeconds: 30)
}
// MARK: - Root Config
@@ -359,7 +359,7 @@ struct HermesConfig: Sendable {
var whatsapp: WhatsAppSettings
var homeAssistant: HomeAssistantSettings
static let empty = HermesConfig(
nonisolated static let empty = HermesConfig(
model: "unknown",
provider: "unknown",
maxTurns: 0,
@@ -418,13 +418,16 @@ struct HermesConfig: Sendable {
)
}
// Hand-written `init(from:)` so Swift 6 doesn't synthesize a
// MainActor-isolated Decodable conformance (which would fail to be used from
// `HermesFileService.loadGatewayState()`, a nonisolated method).
struct GatewayState: Sendable, Codable {
let pid: Int?
let kind: String?
let gatewayState: String?
let exitReason: String?
let platforms: [String: PlatformState]?
let updatedAt: String?
nonisolated let pid: Int?
nonisolated let kind: String?
nonisolated let gatewayState: String?
nonisolated let exitReason: String?
nonisolated let platforms: [String: PlatformState]?
nonisolated let updatedAt: String?
enum CodingKeys: String, CodingKey {
case pid, kind
@@ -434,16 +437,50 @@ struct GatewayState: Sendable, Codable {
case updatedAt = "updated_at"
}
var isRunning: Bool {
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.pid = try c.decodeIfPresent(Int.self, forKey: .pid)
self.kind = try c.decodeIfPresent(String.self, forKey: .kind)
self.gatewayState = try c.decodeIfPresent(String.self, forKey: .gatewayState)
self.exitReason = try c.decodeIfPresent(String.self, forKey: .exitReason)
self.platforms = try c.decodeIfPresent([String: PlatformState].self, forKey: .platforms)
self.updatedAt = try c.decodeIfPresent(String.self, forKey: .updatedAt)
}
nonisolated func encode(to encoder: any Encoder) throws {
var c = encoder.container(keyedBy: CodingKeys.self)
try c.encodeIfPresent(pid, forKey: .pid)
try c.encodeIfPresent(kind, forKey: .kind)
try c.encodeIfPresent(gatewayState, forKey: .gatewayState)
try c.encodeIfPresent(exitReason, forKey: .exitReason)
try c.encodeIfPresent(platforms, forKey: .platforms)
try c.encodeIfPresent(updatedAt, forKey: .updatedAt)
}
nonisolated var isRunning: Bool {
gatewayState == "running"
}
var statusText: String {
nonisolated var statusText: String {
gatewayState ?? "unknown"
}
}
struct PlatformState: Sendable, Codable {
let connected: Bool?
let error: String?
nonisolated let connected: Bool?
nonisolated let error: String?
enum CodingKeys: String, CodingKey { case connected, error }
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.connected = try c.decodeIfPresent(Bool.self, forKey: .connected)
self.error = try c.decodeIfPresent(String.self, forKey: .error)
}
nonisolated func encode(to encoder: any Encoder) throws {
var c = encoder.container(keyedBy: CodingKeys.self)
try c.encodeIfPresent(connected, forKey: .connected)
try c.encodeIfPresent(error, forKey: .error)
}
}
scarf/scarf/Core/Models/HermesConstants.swift
+59 -37
View File
@@ -1,48 +1,70 @@
import Foundation
import SQLite3
/// Deprecated module-level path statics. Preserved as thin forwarders to
/// `ServerContext.local.paths` so existing call sites continue to compile
/// while Phase 1 migrates them to a per-server `ServerContext`.
///
/// New code should accept a `ServerContext` and read `context.paths.<field>`.
enum HermesPaths: Sendable {
private nonisolated static let userHome: String = ProcessInfo.processInfo.environment["HOME"]
?? NSHomeDirectory()
@available(*, deprecated, message: "use ServerContext.paths.home")
nonisolated static var home: String { ServerContext.local.paths.home }
nonisolated static let home: String = userHome + "/.hermes"
nonisolated static let stateDB: String = home + "/state.db"
nonisolated static let configYAML: String = home + "/config.yaml"
nonisolated static let memoriesDir: String = home + "/memories"
nonisolated static let memoryMD: String = memoriesDir + "/MEMORY.md"
nonisolated static let userMD: String = memoriesDir + "/USER.md"
nonisolated static let sessionsDir: String = home + "/sessions"
nonisolated static let cronJobsJSON: String = home + "/cron/jobs.json"
nonisolated static let cronOutputDir: String = home + "/cron/output"
nonisolated static let gatewayStateJSON: String = home + "/gateway_state.json"
nonisolated static let skillsDir: String = home + "/skills"
nonisolated static let errorsLog: String = home + "/logs/errors.log"
nonisolated static let agentLog: String = home + "/logs/agent.log"
nonisolated static let gatewayLog: String = home + "/logs/gateway.log"
nonisolated static let scarfDir: String = home + "/scarf"
nonisolated static let projectsRegistry: String = scarfDir + "/projects.json"
nonisolated static let mcpTokensDir: String = home + "/mcp-tokens"
@available(*, deprecated, message: "use ServerContext.paths.stateDB")
nonisolated static var stateDB: String { ServerContext.local.paths.stateDB }
/// Install locations we look for the `hermes` binary in, in priority order.
/// Checked every access so a user installing via a different method doesn't
/// need to relaunch Scarf.
nonisolated static let hermesBinaryCandidates: [String] = [
userHome + "/.local/bin/hermes", // pipx / pip --user (default)
"/opt/homebrew/bin/hermes", // Homebrew on Apple Silicon
"/usr/local/bin/hermes", // Homebrew on Intel / manual install
userHome + "/.hermes/bin/hermes" // Some self-install layouts
]
@available(*, deprecated, message: "use ServerContext.paths.configYAML")
nonisolated static var configYAML: String { ServerContext.local.paths.configYAML }
/// Resolved path to the `hermes` executable. Returns the first candidate
/// that exists and is executable; falls back to the pipx default so error
/// messages ("Expected at …") still make sense on a fresh machine.
nonisolated static var hermesBinary: String {
for path in hermesBinaryCandidates
where FileManager.default.isExecutableFile(atPath: path) {
return path
}
return hermesBinaryCandidates[0]
@available(*, deprecated, message: "use ServerContext.paths.memoriesDir")
nonisolated static var memoriesDir: String { ServerContext.local.paths.memoriesDir }
@available(*, deprecated, message: "use ServerContext.paths.memoryMD")
nonisolated static var memoryMD: String { ServerContext.local.paths.memoryMD }
@available(*, deprecated, message: "use ServerContext.paths.userMD")
nonisolated static var userMD: String { ServerContext.local.paths.userMD }
@available(*, deprecated, message: "use ServerContext.paths.sessionsDir")
nonisolated static var sessionsDir: String { ServerContext.local.paths.sessionsDir }
@available(*, deprecated, message: "use ServerContext.paths.cronJobsJSON")
nonisolated static var cronJobsJSON: String { ServerContext.local.paths.cronJobsJSON }
@available(*, deprecated, message: "use ServerContext.paths.cronOutputDir")
nonisolated static var cronOutputDir: String { ServerContext.local.paths.cronOutputDir }
@available(*, deprecated, message: "use ServerContext.paths.gatewayStateJSON")
nonisolated static var gatewayStateJSON: String { ServerContext.local.paths.gatewayStateJSON }
@available(*, deprecated, message: "use ServerContext.paths.skillsDir")
nonisolated static var skillsDir: String { ServerContext.local.paths.skillsDir }
@available(*, deprecated, message: "use ServerContext.paths.errorsLog")
nonisolated static var errorsLog: String { ServerContext.local.paths.errorsLog }
@available(*, deprecated, message: "use ServerContext.paths.agentLog")
nonisolated static var agentLog: String { ServerContext.local.paths.agentLog }
@available(*, deprecated, message: "use ServerContext.paths.gatewayLog")
nonisolated static var gatewayLog: String { ServerContext.local.paths.gatewayLog }
@available(*, deprecated, message: "use ServerContext.paths.scarfDir")
nonisolated static var scarfDir: String { ServerContext.local.paths.scarfDir }
@available(*, deprecated, message: "use ServerContext.paths.projectsRegistry")
nonisolated static var projectsRegistry: String { ServerContext.local.paths.projectsRegistry }
@available(*, deprecated, message: "use ServerContext.paths.mcpTokensDir")
nonisolated static var mcpTokensDir: String { ServerContext.local.paths.mcpTokensDir }
@available(*, deprecated, message: "use HermesPathSet.hermesBinaryCandidates")
nonisolated static var hermesBinaryCandidates: [String] {
HermesPathSet.hermesBinaryCandidates
}
@available(*, deprecated, message: "use ServerContext.paths.hermesBinary")
nonisolated static var hermesBinary: String { ServerContext.local.paths.hermesBinary }
}
// MARK: - SQLite Constants
scarf/scarf/Core/Models/HermesCronJob.swift
+101 -26
View File
@@ -1,24 +1,24 @@
import Foundation
struct HermesCronJob: Identifiable, Sendable, Codable {
let id: String
let name: String
let prompt: String
let skills: [String]?
let model: String?
let schedule: CronSchedule
let enabled: Bool
let state: String
let deliver: String?
let nextRunAt: String?
let lastRunAt: String?
let lastError: String?
let preRunScript: String?
let deliveryFailures: Int?
let lastDeliveryError: String?
let timeoutType: String?
let timeoutSeconds: Int?
let silent: Bool?
nonisolated let id: String
nonisolated let name: String
nonisolated let prompt: String
nonisolated let skills: [String]?
nonisolated let model: String?
nonisolated let schedule: CronSchedule
nonisolated let enabled: Bool
nonisolated let state: String
nonisolated let deliver: String?
nonisolated let nextRunAt: String?
nonisolated let lastRunAt: String?
nonisolated let lastError: String?
nonisolated let preRunScript: String?
nonisolated let deliveryFailures: Int?
nonisolated let lastDeliveryError: String?
nonisolated let timeoutType: String?
nonisolated let timeoutSeconds: Int?
nonisolated let silent: Bool?
enum CodingKeys: String, CodingKey {
case id, name, prompt, skills, model, schedule, enabled, state, deliver, silent
@@ -32,7 +32,51 @@ struct HermesCronJob: Identifiable, Sendable, Codable {
case timeoutSeconds = "timeout_seconds"
}
var stateIcon: String {
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.id = try c.decode(String.self, forKey: .id)
self.name = try c.decode(String.self, forKey: .name)
self.prompt = try c.decode(String.self, forKey: .prompt)
self.skills = try c.decodeIfPresent([String].self, forKey: .skills)
self.model = try c.decodeIfPresent(String.self, forKey: .model)
self.schedule = try c.decode(CronSchedule.self, forKey: .schedule)
self.enabled = try c.decode(Bool.self, forKey: .enabled)
self.state = try c.decode(String.self, forKey: .state)
self.deliver = try c.decodeIfPresent(String.self, forKey: .deliver)
self.nextRunAt = try c.decodeIfPresent(String.self, forKey: .nextRunAt)
self.lastRunAt = try c.decodeIfPresent(String.self, forKey: .lastRunAt)
self.lastError = try c.decodeIfPresent(String.self, forKey: .lastError)
self.preRunScript = try c.decodeIfPresent(String.self, forKey: .preRunScript)
self.deliveryFailures = try c.decodeIfPresent(Int.self, forKey: .deliveryFailures)
self.lastDeliveryError = try c.decodeIfPresent(String.self, forKey: .lastDeliveryError)
self.timeoutType = try c.decodeIfPresent(String.self, forKey: .timeoutType)
self.timeoutSeconds = try c.decodeIfPresent(Int.self, forKey: .timeoutSeconds)
self.silent = try c.decodeIfPresent(Bool.self, forKey: .silent)
}
nonisolated func encode(to encoder: any Encoder) throws {
var c = encoder.container(keyedBy: CodingKeys.self)
try c.encode(id, forKey: .id)
try c.encode(name, forKey: .name)
try c.encode(prompt, forKey: .prompt)
try c.encodeIfPresent(skills, forKey: .skills)
try c.encodeIfPresent(model, forKey: .model)
try c.encode(schedule, forKey: .schedule)
try c.encode(enabled, forKey: .enabled)
try c.encode(state, forKey: .state)
try c.encodeIfPresent(deliver, forKey: .deliver)
try c.encodeIfPresent(nextRunAt, forKey: .nextRunAt)
try c.encodeIfPresent(lastRunAt, forKey: .lastRunAt)
try c.encodeIfPresent(lastError, forKey: .lastError)
try c.encodeIfPresent(preRunScript, forKey: .preRunScript)
try c.encodeIfPresent(deliveryFailures, forKey: .deliveryFailures)
try c.encodeIfPresent(lastDeliveryError, forKey: .lastDeliveryError)
try c.encodeIfPresent(timeoutType, forKey: .timeoutType)
try c.encodeIfPresent(timeoutSeconds, forKey: .timeoutSeconds)
try c.encodeIfPresent(silent, forKey: .silent)
}
nonisolated var stateIcon: String {
switch state {
case "scheduled": return "clock"
case "running": return "play.circle"
@@ -42,7 +86,7 @@ struct HermesCronJob: Identifiable, Sendable, Codable {
}
}
var deliveryDisplay: String? {
nonisolated var deliveryDisplay: String? {
guard let deliver, !deliver.isEmpty else { return nil }
// v0.9.0 extends Discord routing to threads: `discord:<chat>:<thread>`.
if deliver.hasPrefix("discord:") {
@@ -59,10 +103,10 @@ struct HermesCronJob: Identifiable, Sendable, Codable {
}
struct CronSchedule: Sendable, Codable {
let kind: String
let runAt: String?
let display: String?
let expression: String?
nonisolated let kind: String
nonisolated let runAt: String?
nonisolated let display: String?
nonisolated let expression: String?
enum CodingKeys: String, CodingKey {
case kind
@@ -70,14 +114,45 @@ struct CronSchedule: Sendable, Codable {
case display
case expression
}
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.kind = try c.decode(String.self, forKey: .kind)
self.runAt = try c.decodeIfPresent(String.self, forKey: .runAt)
self.display = try c.decodeIfPresent(String.self, forKey: .display)
self.expression = try c.decodeIfPresent(String.self, forKey: .expression)
}
nonisolated func encode(to encoder: any Encoder) throws {
var c = encoder.container(keyedBy: CodingKeys.self)
try c.encode(kind, forKey: .kind)
try c.encodeIfPresent(runAt, forKey: .runAt)
try c.encodeIfPresent(display, forKey: .display)
try c.encodeIfPresent(expression, forKey: .expression)
}
}
// Hand-written `init(from:)` / `encode(to:)` so Swift 6 doesn't synthesize a
// MainActor-isolated Codable conformance — `HermesFileService.loadCronJobs`
// is nonisolated and needs to decode this from a background task.
struct CronJobsFile: Sendable, Codable {
let jobs: [HermesCronJob]
let updatedAt: String?
nonisolated let jobs: [HermesCronJob]
nonisolated let updatedAt: String?
enum CodingKeys: String, CodingKey {
case jobs
case updatedAt = "updated_at"
}
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.jobs = try c.decode([HermesCronJob].self, forKey: .jobs)
self.updatedAt = try c.decodeIfPresent(String.self, forKey: .updatedAt)
}
nonisolated func encode(to encoder: any Encoder) throws {
var c = encoder.container(keyedBy: CodingKeys.self)
try c.encode(jobs, forKey: .jobs)
try c.encodeIfPresent(updatedAt, forKey: .updatedAt)
}
}
scarf/scarf/Core/Models/HermesPathSet.swift
+92
View File
@@ -0,0 +1,92 @@
import Foundation
/// The filesystem layout of a Hermes installation, parameterized by the
/// `home` directory. The same layout is used for local installations (where
/// `home` is an absolute macOS path like `/Users/alan/.hermes`) and for
/// remote installations reached over SSH (where `home` is a remote path like
/// `/home/deploy/.hermes` or an unexpanded `~/.hermes` that the remote shell
/// will resolve).
///
/// Every path that used to live as a module-level static on `HermesPaths` is
/// an instance property here. `ServerContext.paths` is the canonical way to
/// reach these values; the old `HermesPaths` statics are preserved as
/// deprecated forwarders so Phase 1 can migrate call sites incrementally.
struct HermesPathSet: Sendable, Hashable {
let home: String
/// `true` when this path set belongs to a remote installation. Affects
/// only `hermesBinary` resolution — every other path is identical in
/// shape between local and remote.
let isRemote: Bool
/// Pre-resolved remote binary path (e.g. `/home/deploy/.local/bin/hermes`).
/// Populated by `SSHTransport` once `command -v hermes` has run on the
/// target host. Unused when `isRemote == false`.
let binaryHint: String?
// MARK: - Defaults
/// Absolute path to the local user's `~/.hermes` directory.
nonisolated static let defaultLocalHome: String = {
let user = ProcessInfo.processInfo.environment["HOME"] ?? NSHomeDirectory()
return user + "/.hermes"
}()
/// Default remote home when the user doesn't override it in `SSHConfig`.
/// We leave `~` unexpanded on purpose — the remote shell resolves it.
nonisolated static let defaultRemoteHome: String = "~/.hermes"
// MARK: - Paths (mirror of the old HermesPaths layout)
nonisolated var stateDB: String { home + "/state.db" }
nonisolated var configYAML: String { home + "/config.yaml" }
nonisolated var envFile: String { home + "/.env" }
nonisolated var authJSON: String { home + "/auth.json" }
nonisolated var soulMD: String { home + "/SOUL.md" }
nonisolated var pluginsDir: String { home + "/plugins" }
nonisolated var memoriesDir: String { home + "/memories" }
nonisolated var memoryMD: String { memoriesDir + "/MEMORY.md" }
nonisolated var userMD: String { memoriesDir + "/USER.md" }
nonisolated var sessionsDir: String { home + "/sessions" }
nonisolated var cronJobsJSON: String { home + "/cron/jobs.json" }
nonisolated var cronOutputDir: String { home + "/cron/output" }
nonisolated var gatewayStateJSON: String { home + "/gateway_state.json" }
nonisolated var skillsDir: String { home + "/skills" }
nonisolated var errorsLog: String { home + "/logs/errors.log" }
nonisolated var agentLog: String { home + "/logs/agent.log" }
nonisolated var gatewayLog: String { home + "/logs/gateway.log" }
nonisolated var scarfDir: String { home + "/scarf" }
nonisolated var projectsRegistry: String { scarfDir + "/projects.json" }
nonisolated var mcpTokensDir: String { home + "/mcp-tokens" }
// MARK: - Binary resolution
/// Install locations we probe for the local `hermes` binary, in priority
/// order. Checked on every access so a user installing via a different
/// method doesn't need to relaunch Scarf.
nonisolated static let hermesBinaryCandidates: [String] = {
let user = ProcessInfo.processInfo.environment["HOME"] ?? NSHomeDirectory()
return [
user + "/.local/bin/hermes", // pipx / pip --user (default)
"/opt/homebrew/bin/hermes", // Homebrew on Apple Silicon
"/usr/local/bin/hermes", // Homebrew on Intel / manual install
user + "/.hermes/bin/hermes" // Some self-install layouts
]
}()
/// Resolved path to the `hermes` executable for this installation.
///
/// Local: returns the first executable candidate, falling back to the
/// pipx default so error messages still make sense on a fresh machine.
///
/// Remote: returns `binaryHint` (populated at connect time) or bare
/// `"hermes"` as a last-resort default that relies on the remote `$PATH`.
nonisolated var hermesBinary: String {
if isRemote {
return binaryHint ?? "hermes"
}
for path in Self.hermesBinaryCandidates
where FileManager.default.isExecutableFile(atPath: path) {
return path
}
return Self.hermesBinaryCandidates[0]
}
}
scarf/scarf/Core/Models/ServerContext.swift
+253
View File
@@ -0,0 +1,253 @@
import Foundation
import SwiftUI
import AppKit
/// Stable identifier for a server entry in the user's registry. Backed by
/// `UUID` so it round-trips through `servers.json` and SwiftUI window-state
/// restoration without collisions.
typealias ServerID = UUID
/// Connection parameters for a remote Hermes installation reached over SSH.
/// All fields are optional except `host` — unset values defer to the user's
/// `~/.ssh/config` and the OpenSSH defaults.
struct SSHConfig: Sendable, Hashable, Codable {
/// Hostname or `~/.ssh/config` alias.
var host: String
/// Remote username. `nil` → defer to `~/.ssh/config` or the local user.
var user: String?
/// TCP port. `nil` → 22 (or whatever `~/.ssh/config` says).
var port: Int?
/// Absolute path to a private key. `nil` → defer to ssh-agent /
/// `~/.ssh/config` identity files.
var identityFile: String?
/// Override for the remote `$HOME/.hermes` directory. `nil` uses
/// `HermesPathSet.defaultRemoteHome` (`~/.hermes`, shell-expanded on the
/// remote side).
var remoteHome: String?
/// Resolved remote path to the `hermes` binary. Populated by
/// `SSHTransport` after the first `command -v hermes` probe; cached here
/// so subsequent calls skip the round trip.
var hermesBinaryHint: String?
}
/// Distinguishes a local installation (the user's own `~/.hermes`) from a
/// remote one reached over SSH. Service behavior is identical in shape but
/// dispatches to different I/O primitives in Phase 2.
enum ServerKind: Sendable, Hashable, Codable {
case local
case ssh(SSHConfig)
}
/// The per-server value that flows through `.environment` and gets handed to
/// every service and ViewModel in Phase 1. One `ServerContext` corresponds to
/// one Hermes installation; multi-window scenes in Phase 3 will construct
/// one per window.
///
/// **Why every member is `nonisolated`.** This file imports `AppKit`
/// (`NSWorkspace.shared.open` in `openInLocalEditor`), which under Swift 6's
/// upcoming default-isolation rules pulls the whole struct to `@MainActor`.
/// `ServerContext` is a plain `Sendable` value — accessing `.local`, `.paths`,
/// `.isRemote`, or `makeTransport()` from a background actor must not trap
/// the caller into hopping MainActor. `nonisolated` on each member keeps
/// them callable from any context; the one MainActor-dependent method
/// (`openInLocalEditor`) lives in the extension below.
struct ServerContext: Sendable, Hashable, Identifiable {
let id: ServerID
var displayName: String
var kind: ServerKind
/// Path layout for this server. Cheap — all path components are computed
/// on demand from `home`, no I/O.
nonisolated var paths: HermesPathSet {
switch kind {
case .local:
return HermesPathSet(
home: HermesPathSet.defaultLocalHome,
isRemote: false,
binaryHint: nil
)
case .ssh(let config):
return HermesPathSet(
home: config.remoteHome ?? HermesPathSet.defaultRemoteHome,
isRemote: true,
binaryHint: config.hermesBinaryHint
)
}
}
nonisolated var isRemote: Bool {
if case .ssh = kind { return true }
return false
}
/// Construct the `ServerTransport` for this context. Local contexts get
/// a `LocalTransport`; SSH contexts get an `SSHTransport` configured
/// from `SSHConfig`. Each call returns a fresh value — transports are
/// cheap and stateless beyond disk caches.
nonisolated func makeTransport() -> any ServerTransport {
switch kind {
case .local:
return LocalTransport(contextID: id)
case .ssh(let config):
return SSHTransport(contextID: id, config: config, displayName: displayName)
}
}
// MARK: - Well-known singletons
/// Stable UUID for the built-in "this machine" entry. Hard-coded so the
/// local context has the same identity across launches, and so persisted
/// window-state restorations that reference it continue to resolve even
/// if `servers.json` hasn't been touched yet.
nonisolated private static let localID = ServerID(uuidString: "00000000-0000-0000-0000-000000000001")!
/// The default "this machine" context. Used everywhere in Phase 0/1 and
/// remains the fallback when no remote server is selected.
nonisolated static let local = ServerContext(
id: localID,
displayName: "Local",
kind: .local
)
}
// MARK: - Remote user-home resolution
/// Process-wide cache of each server's resolved user `$HOME`. Probed once per
/// `ServerID` via the transport, then memoized for the app's lifetime — home
/// directories don't change under us, and the probe is a ~5ms SSH round-trip
/// with ControlMaster. Used by anything that needs to hand a working
/// directory to the ACP agent or the Hermes CLI on the correct host.
private actor UserHomeCache {
static let shared = UserHomeCache()
private var cache: [ServerID: String] = [:]
func resolve(for context: ServerContext) async -> String {
if let cached = cache[context.id] { return cached }
let resolved = await probe(context: context)
cache[context.id] = resolved
return resolved
}
func invalidate(contextID: ServerID) {
cache.removeValue(forKey: contextID)
}
private func probe(context: ServerContext) async -> String {
if !context.isRemote { return NSHomeDirectory() }
let transport = context.makeTransport()
let result = try? transport.runProcess(
executable: "/bin/sh",
args: ["-c", "echo $HOME"],
stdin: nil,
timeout: 10
)
let out = result?.stdoutString.trimmingCharacters(in: .whitespacesAndNewlines) ?? ""
// Fall back to `~` (unexpanded) so ACP at least gets a plausible cwd
// rather than a local Mac path. The remote side will expand it if
// passed through a shell; if not, failures are surfaced by ACP itself.
return out.isEmpty ? "~" : out
}
}
extension ServerContext {
/// Resolved absolute path to the user's home directory on the target host.
/// Local: `NSHomeDirectory()`. Remote: probed `$HOME` over SSH, cached.
/// Use this — not `NSHomeDirectory()` — whenever you're passing a `cwd`
/// or user path to a process that runs on the target host.
func resolvedUserHome() async -> String {
await UserHomeCache.shared.resolve(for: self)
}
/// Called when a server is removed from the registry, so the process-wide
/// caches keyed by `ServerID` don't hold stale entries forever.
static func invalidateCaches(for contextID: ServerID) async {
await UserHomeCache.shared.invalidate(contextID: contextID)
}
}
// MARK: - Convenience file I/O via the right transport
/// Centralized file I/O entry points for VMs that don't own a service. Every
/// call goes through the context's transport, so reads/writes hit the local
/// disk for `.local` and ssh/scp for `.ssh` automatically.
///
/// **Always** prefer `context.readText(...)` over `String(contentsOfFile: ...)`
/// when the path comes from `context.paths`. The Foundation file APIs are
/// LOCAL ONLY — using them with a remote path silently returns nil because
/// the remote path doesn't exist on this Mac.
extension ServerContext {
/// Read a UTF-8 text file. `nil` on any error (missing, transport down,
/// invalid encoding).
nonisolated func readText(_ path: String) -> String? {
guard let data = try? makeTransport().readFile(path) else { return nil }
return String(data: data, encoding: .utf8)
}
/// Read raw bytes. `nil` on any error.
nonisolated func readData(_ path: String) -> Data? {
try? makeTransport().readFile(path)
}
/// Atomic write. Returns `true` on success, `false` on any error
/// (caller is expected to surface failures via UI when relevant).
@discardableResult
nonisolated func writeText(_ path: String, content: String) -> Bool {
guard let data = content.data(using: .utf8) else { return false }
do {
try makeTransport().writeFile(path, data: data)
return true
} catch {
return false
}
}
/// Existence check. Local: `FileManager`. Remote: `ssh test -e`.
nonisolated func fileExists(_ path: String) -> Bool {
makeTransport().fileExists(path)
}
/// File modification timestamp, or `nil` if the file doesn't exist.
nonisolated func modificationDate(_ path: String) -> Date? {
makeTransport().stat(path)?.mtime
}
/// Invoke the `hermes` CLI on this server and return its combined output
/// + exit code. Local: spawns the local binary via `Process`. Remote:
/// rounds through `ssh host hermes …`. Use this from any VM that needs
/// to fire off a CLI command — never spawn `hermes` via `Process()`
/// directly, because that path bypasses the transport for remote.
@discardableResult
nonisolated func runHermes(_ args: [String], timeout: TimeInterval = 60, stdin: String? = nil) -> (output: String, exitCode: Int32) {
let result = HermesFileService(context: self).runHermesCLI(args: args, timeout: timeout, stdinInput: stdin)
return (result.output, result.exitCode)
}
/// Reveal the file at `path` in the user's local editor (via
/// `NSWorkspace.open`). For remote contexts this is a no-op — the
/// file doesn't exist on this Mac, so opening it would fail silently
/// or worse, open the wrong file from the local filesystem.
/// Returns `true` if opened, `false` if the call was skipped.
@discardableResult
func openInLocalEditor(_ path: String) -> Bool {
guard !isRemote else { return false }
NSWorkspace.shared.open(URL(fileURLWithPath: path))
return true
}
}
// MARK: - SwiftUI environment plumbing
/// `ServerContext` is a value type, so SwiftUI's `.environment(_:)` (which
/// requires an `@Observable` class) doesn't accept it directly. We expose it
/// through a custom `EnvironmentKey` — views read it with
/// `@Environment(\.serverContext) private var serverContext`.
private struct ServerContextEnvironmentKey: EnvironmentKey {
static let defaultValue: ServerContext = .local
}
extension EnvironmentValues {
var serverContext: ServerContext {
get { self[ServerContextEnvironmentKey.self] }
set { self[ServerContextEnvironmentKey.self] = newValue }
}
}
scarf/scarf/Core/Persistence/ServerRegistry.swift
+166
View File
@@ -0,0 +1,166 @@
import Foundation
import os
/// Persisted entry for a user-added server. `ServerContext` itself is a value
/// type we rebuild from these fields at runtime — we persist the minimum that
/// uniquely identifies a connection, not the whole context struct, so future
/// fields we add to `ServerContext` don't force a migration.
struct ServerEntry: Identifiable, Codable, Hashable, Sendable {
var id: ServerID
var displayName: String
var kind: ServerKind
/// User preference: open this server in a window on launch. Phase 3
/// multi-window uses this; Phase 2 ignores it.
var openOnLaunch: Bool = false
var context: ServerContext {
ServerContext(id: id, displayName: displayName, kind: kind)
}
}
/// On-disk envelope for `servers.json`. Schema-versioned so future changes
/// can migrate without losing data.
private struct RegistryFile: Codable {
var schemaVersion: Int
var entries: [ServerEntry]
}
/// App-scoped store for user-added servers. `local` is synthesized (not
/// persisted) and always appears first in `allContexts`. Remote entries are
/// loaded from `~/Library/Application Support/scarf/servers.json`.
///
/// Observable so SwiftUI views binding to `entries` redraw when a server is
/// added, renamed, or removed.
@Observable
@MainActor
final class ServerRegistry {
private static let logger = Logger(subsystem: "com.scarf", category: "ServerRegistry")
private static let currentSchemaVersion = 1
/// Remote (user-added) entries. Observable: views redraw on mutation.
private(set) var entries: [ServerEntry] = []
private let storeURL: URL
init() {
let support = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).first
?? URL(fileURLWithPath: NSHomeDirectory() + "/Library/Application Support")
let dir = support.appendingPathComponent("scarf", isDirectory: true)
self.storeURL = dir.appendingPathComponent("servers.json")
load()
}
// MARK: - Lookup
/// The implicit local server plus every persisted remote entry, in list
/// order. Use this when populating UI like the toolbar switcher.
var allContexts: [ServerContext] {
[.local] + entries.map { $0.context }
}
/// Resolve an ID to a context, or `nil` if the entry no longer exists.
/// Used by the multi-window root to detect "this window points at a
/// server you've since removed" and show a dedicated empty state.
func context(for id: ServerID) -> ServerContext? {
if id == ServerContext.local.id { return .local }
if let entry = entries.first(where: { $0.id == id }) {
return entry.context
}
return nil
}
// MARK: - Mutations
/// Optional callback fired whenever `entries` changes. The app wires
/// this to `ServerLiveStatusRegistry.rebuild()` so the menu-bar fanout
/// stays in sync without polling the entries array.
var onEntriesChanged: (() -> Void)?
@discardableResult
func addServer(displayName: String, config: SSHConfig) -> ServerEntry {
let entry = ServerEntry(
id: ServerID(),
displayName: displayName,
kind: .ssh(config)
)
entries.append(entry)
save()
onEntriesChanged?()
return entry
}
func updateServer(_ id: ServerID, displayName: String?, config: SSHConfig?) {
guard let idx = entries.firstIndex(where: { $0.id == id }) else { return }
if let name = displayName { entries[idx].displayName = name }
if let cfg = config { entries[idx].kind = .ssh(cfg) }
save()
onEntriesChanged?()
}
func removeServer(_ id: ServerID) {
// Grab the entry BEFORE removing it so we can tear down its transport
// state. Without this the user would leak a ControlMaster socket
// (~10min TTL) and a snapshot cache dir (indefinite) per removed
// server — harmless individually, ugly at scale.
let removed = entries.first { $0.id == id }
entries.removeAll { $0.id == id }
save()
if let removed, case .ssh(let config) = removed.kind {
let transport = SSHTransport(contextID: id, config: config, displayName: removed.displayName)
transport.closeControlMaster()
}
SSHTransport.pruneSnapshotCache(for: id)
// Drop process-wide cache entries keyed on this ServerID so a future
// re-add with a colliding ID (theoretical — UUIDs are random, but be
// defensive) doesn't serve stale data.
Task.detached { await ServerContext.invalidateCaches(for: id) }
onEntriesChanged?()
}
// MARK: - App-launch sweep
/// Remove snapshot cache directories whose UUID isn't in the current
/// registry. Handles the case where the user removed a server while the
/// app was closed — we want the cache to converge to the registry's
/// state at launch rather than carrying forever.
func sweepOrphanCaches() {
var keep: Set<ServerID> = [ServerContext.local.id]
for entry in entries { keep.insert(entry.id) }
SSHTransport.sweepOrphanSnapshots(keeping: keep)
}
// MARK: - Persistence
private func load() {
guard FileManager.default.fileExists(atPath: storeURL.path) else {
entries = []
return
}
do {
let data = try Data(contentsOf: storeURL)
let file = try JSONDecoder().decode(RegistryFile.self, from: data)
entries = file.entries
} catch {
Self.logger.error("Failed to load servers.json: \(error.localizedDescription)")
entries = []
}
}
private func save() {
do {
try FileManager.default.createDirectory(
at: storeURL.deletingLastPathComponent(),
withIntermediateDirectories: true
)
let file = RegistryFile(schemaVersion: Self.currentSchemaVersion, entries: entries)
let encoder = JSONEncoder()
encoder.outputFormatting = [.prettyPrinted, .sortedKeys]
let data = try encoder.encode(file)
try data.write(to: storeURL, options: .atomic)
} catch {
Self.logger.error("Failed to save servers.json: \(error.localizedDescription)")
}
}
}
scarf/scarf/Core/Services/ACPClient.swift
+42 -11
View File
@@ -24,6 +24,14 @@ actor ACPClient {
private(set) var currentSessionId: String?
private(set) var statusMessage = ""
let context: ServerContext
private let transport: any ServerTransport
init(context: ServerContext = .local) {
self.context = context
self.transport = context.makeTransport()
}
/// Ring buffer of recent stderr lines from `hermes acp` — used to attach
/// a diagnostic tail to user-visible errors. Capped to avoid unbounded
/// growth when the subprocess logs heavily.
@@ -75,9 +83,15 @@ actor ACPClient {
self._eventStream = stream
self.eventContinuation = continuation
let proc = Process()
proc.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
proc.arguments = ["acp"]
// For local: Process is `hermes acp` directly.
// For remote: the transport returns a Process configured as
// `/usr/bin/ssh -T <opts> host -- <hermes> acp`. ACP's JSON-RPC
// over stdio works identically because `-T` keeps the ssh channel
// byte-clean and stdin/stdout travel end-to-end unmodified.
let proc = transport.makeProcess(
executable: context.paths.hermesBinary,
args: ["acp"]
)
let stdin = Pipe()
let stdout = Pipe()
@@ -88,11 +102,28 @@ actor ACPClient {
proc.standardError = stderr
// ACP uses JSON-RPC over pipes — do NOT set TERM to avoid terminal escape pollution.
// Use the enriched environment so any tools hermes spawns (MCP servers,
// shell commands) can find brew/nvm/asdf binaries on PATH.
var env = HermesFileService.enrichedEnvironment()
env.removeValue(forKey: "TERM")
proc.environment = env
if context.isRemote {
// Remote: this is the LOCAL ssh process spawning `ssh host …
// hermes acp`. We don't forward our local PATH/credentials to
// the remote (hermes runs under the remote user's login env),
// but the ssh binary itself needs SSH_AUTH_SOCK to reach the
// local ssh-agent for key-based auth.
var env = ProcessInfo.processInfo.environment
let shellEnv = HermesFileService.enrichedEnvironment()
for key in ["SSH_AUTH_SOCK", "SSH_AGENT_PID"] {
if env[key] == nil, let v = shellEnv[key], !v.isEmpty {
env[key] = v
}
}
env.removeValue(forKey: "TERM")
proc.environment = env
} else {
// Local: enriched env so any tools hermes spawns (MCP servers,
// shell commands) can find brew/nvm/asdf binaries on PATH.
var env = HermesFileService.enrichedEnvironment()
env.removeValue(forKey: "TERM")
proc.environment = env
}
proc.terminationHandler = { [weak self] proc in
Task { await self?.handleTermination(exitCode: proc.terminationStatus) }
@@ -405,14 +436,14 @@ actor ACPClient {
guard !lineData.isEmpty else { continue }
if let lineStr = String(data: lineData, encoding: .utf8) {
await self?.logger.debug("ACP recv: \(lineStr.prefix(200))")
self?.logger.debug("ACP recv: \(lineStr.prefix(200))")
}
do {
let message = try JSONDecoder().decode(ACPRawMessage.self, from: lineData)
await self?.handleMessage(message)
} catch {
await self?.logger.warning("Failed to decode ACP message: \(error.localizedDescription)")
self?.logger.warning("Failed to decode ACP message: \(error.localizedDescription)")
}
}
}
@@ -428,7 +459,7 @@ actor ACPClient {
if data.isEmpty { break }
if let text = String(data: data, encoding: .utf8)?.trimmingCharacters(in: .whitespacesAndNewlines),
!text.isEmpty {
await self?.logger.info("ACP stderr: \(text.prefix(500))")
self?.logger.info("ACP stderr: \(text.prefix(500))")
await self?.appendStderr(text)
}
}
scarf/scarf/Core/Services/HermesDataService.swift
+92 -11
View File
@@ -1,25 +1,107 @@
import Foundation
import SQLite3
/// Dedupes concurrent `snapshotSQLite` calls for the same server. When the
/// file watcher ticks, Dashboard + Sessions + Activity (+ Chat's loadHistory)
/// can all ask for a fresh snapshot within the same millisecond — without
/// coordination they each spawn their own `ssh host sqlite3 .backup; scp`
/// round-trip, three parallel backups of the same DB. Callers in flight for
/// the same `ServerID` await the first caller's Task and share its result.
actor SnapshotCoordinator {
static let shared = SnapshotCoordinator()
private var inFlight: [ServerID: Task<URL, Error>] = [:]
func snapshot(
remotePath: String,
contextID: ServerID,
transport: any ServerTransport
) async throws -> URL {
if let existing = inFlight[contextID] {
return try await existing.value
}
let task = Task<URL, Error> {
try transport.snapshotSQLite(remotePath: remotePath)
}
inFlight[contextID] = task
defer { inFlight[contextID] = nil }
return try await task.value
}
}
actor HermesDataService {
private var db: OpaquePointer?
private var hasV07Schema = false
/// Local filesystem path we last opened. For remote contexts this is
/// the cached snapshot under `~/Library/Caches/scarf/snapshots/<id>/`.
private var openedAtPath: String?
func open() -> Bool {
let context: ServerContext
private let transport: any ServerTransport
init(context: ServerContext = .local) {
self.context = context
self.transport = context.makeTransport()
}
func open() async -> Bool {
if db != nil { return true }
let path = HermesPaths.stateDB
guard FileManager.default.fileExists(atPath: path) else { return false }
let flags = SQLITE_OPEN_READONLY | SQLITE_OPEN_NOMUTEX
let result = sqlite3_open_v2(path, &db, flags, nil)
let localPath: String
if context.isRemote {
// Pull a fresh snapshot from the remote host. Uses `sqlite3
// .backup` on the remote, which is WAL-safe; a plain cp would
// corrupt. Routed through SnapshotCoordinator so concurrent
// view models don't each spawn a parallel SSH backup for the
// same server.
let url = try? await SnapshotCoordinator.shared.snapshot(
remotePath: context.paths.stateDB,
contextID: context.id,
transport: transport
)
guard let url else { return false }
localPath = url.path
} else {
localPath = context.paths.stateDB
guard FileManager.default.fileExists(atPath: localPath) else { return false }
}
// Remote snapshots are point-in-time copies that no one writes to;
// opening them with `immutable=1` tells SQLite to skip WAL/SHM and
// locking entirely, which is both faster and avoids spurious
// "unable to open database file" errors if the snapshot ever gets
// pulled mid-checkpoint. Local points at the live Hermes DB where
// the process already has WAL enabled in the header, so a plain
// readonly open is the right thing.
let flags: Int32
let openPath: String
if context.isRemote {
openPath = "file:\(localPath)?immutable=1"
flags = SQLITE_OPEN_READONLY | SQLITE_OPEN_NOMUTEX | SQLITE_OPEN_URI
} else {
openPath = localPath
flags = SQLITE_OPEN_READONLY | SQLITE_OPEN_NOMUTEX
}
let result = sqlite3_open_v2(openPath, &db, flags, nil)
guard result == SQLITE_OK else {
db = nil
return false
}
sqlite3_exec(db, "PRAGMA journal_mode=WAL", nil, nil, nil)
openedAtPath = localPath
detectSchema()
return true
}
/// Force a fresh snapshot pull + reopen. Used on session-load and in
/// any path that needs the UI to reflect writes Hermes just made.
/// Without this, remote snapshots would be frozen at the first `open()`
/// for the app's lifetime — new messages added to a resumed session
/// would never appear because the snapshot was pulled before they were
/// written. Local contexts pay essentially nothing: close+reopen on a
/// live DB is a no-op.
@discardableResult
func refresh() async -> Bool {
close()
return await open()
}
func close() {
if let db {
sqlite3_close(db)
@@ -431,11 +513,10 @@ actor HermesDataService {
}
func stateDBModificationDate() -> Date? {
let walPath = HermesPaths.stateDB + "-wal"
let dbPath = HermesPaths.stateDB
let fm = FileManager.default
let walDate = (try? fm.attributesOfItem(atPath: walPath))?[.modificationDate] as? Date
let dbDate = (try? fm.attributesOfItem(atPath: dbPath))?[.modificationDate] as? Date
// For remote contexts we stat the remote paths. For local it's the
// same FileManager lookup as before, just via the transport.
let walDate = transport.stat(context.paths.stateDB + "-wal")?.mtime
let dbDate = transport.stat(context.paths.stateDB)?.mtime
if let w = walDate, let d = dbDate {
return max(w, d)
}
scarf/scarf/Core/Services/HermesEnvService.swift
+22 -21
View File
@@ -22,15 +22,24 @@ struct HermesEnvService: Sendable {
/// Path to `~/.hermes/.env`. Kept configurable for tests.
let path: String
let transport: any ServerTransport
init(path: String = HermesPaths.home + "/.env") {
nonisolated init(context: ServerContext = .local) {
self.path = context.paths.envFile
self.transport = context.makeTransport()
}
/// Escape hatch for tests that want to point at a fixture path directly.
init(path: String) {
self.path = path
self.transport = LocalTransport()
}
/// Read the .env file into a `[key: value]` dict. Comments and commented-out
/// assignments are ignored. Missing file returns an empty dict.
func load() -> [String: String] {
guard let content = try? String(contentsOfFile: path, encoding: .utf8) else {
guard let data = try? transport.readFile(path),
let content = String(data: data, encoding: .utf8) else {
return [:]
}
var result: [String: String] = [:]
@@ -69,7 +78,8 @@ struct HermesEnvService: Sendable {
var lines: [String]
// Start from existing file contents, or a minimal header if creating new.
if let content = try? String(contentsOfFile: path, encoding: .utf8) {
if let data = try? transport.readFile(path),
let content = String(data: data, encoding: .utf8) {
lines = content.components(separatedBy: "\n")
// Trim a single trailing empty line from splitting the final newline;
// we'll re-add it on write.
@@ -105,7 +115,8 @@ struct HermesEnvService: Sendable {
/// uncommenting. If the key doesn't exist, this is a no-op.
@discardableResult
func unset(_ key: String) -> Bool {
guard let content = try? String(contentsOfFile: path, encoding: .utf8) else {
guard let data = try? transport.readFile(path),
let content = String(data: data, encoding: .utf8) else {
return true
}
var lines = content.components(separatedBy: "\n")
@@ -125,28 +136,18 @@ struct HermesEnvService: Sendable {
// MARK: - Internals
/// Writes the entire file in one shot via a tmp + rename to avoid corrupting
/// `.env` if the process is killed mid-write. Preserves `0600` permissions
/// since `.env` typically holds secrets.
/// Writes the entire file in one shot through the transport. For local
/// contexts this ends up doing the same atomic-rename dance as before
/// (via `LocalTransport.writeFile`). For remote contexts this goes
/// through `scp` + remote `mv`, still atomic from Hermes's point of
/// view.
private func atomicWrite(_ content: String) -> Bool {
let tmp = path + ".tmp"
guard let data = content.data(using: .utf8) else { return false }
do {
try content.write(toFile: tmp, atomically: false, encoding: .utf8)
// Mirror the typical `.env` mode of `0600` (owner read/write only).
try FileManager.default.setAttributes([.posixPermissions: 0o600], ofItemAtPath: tmp)
// Swap into place. FileManager.replaceItem handles the replacement
// atomically on the same volume; fall back to a two-step rename.
let destURL = URL(fileURLWithPath: path)
let tmpURL = URL(fileURLWithPath: tmp)
if FileManager.default.fileExists(atPath: path) {
_ = try FileManager.default.replaceItemAt(destURL, withItemAt: tmpURL)
} else {
try FileManager.default.moveItem(at: tmpURL, to: destURL)
}
try transport.writeFile(path, data: data)
return true
} catch {
logger.error("Failed to write .env: \(error.localizedDescription)")
try? FileManager.default.removeItem(atPath: tmp)
return false
}
}
scarf/scarf/Core/Services/HermesFileService.swift
+182 -155
View File
@@ -2,14 +2,22 @@ import Foundation
struct HermesFileService: Sendable {
let context: ServerContext
let transport: any ServerTransport
nonisolated init(context: ServerContext = .local) {
self.context = context
self.transport = context.makeTransport()
}
// MARK: - Config
func loadConfig() -> HermesConfig {
guard let content = readFile(HermesPaths.configYAML) else { return .empty }
nonisolated func loadConfig() -> HermesConfig {
guard let content = readFile(context.paths.configYAML) else { return .empty }
return parseConfig(content)
}
private func parseConfig(_ yaml: String) -> HermesConfig {
nonisolated private func parseConfig(_ yaml: String) -> HermesConfig {
let parsed = Self.parseNestedYAML(yaml)
let values = parsed.values
let lists = parsed.lists
@@ -372,8 +380,8 @@ struct HermesFileService: Sendable {
// MARK: - Gateway State
func loadGatewayState() -> GatewayState? {
guard let data = readFileData(HermesPaths.gatewayStateJSON) else { return nil }
nonisolated func loadGatewayState() -> GatewayState? {
guard let data = readFileData(context.paths.gatewayStateJSON) else { return nil }
do {
return try JSONDecoder().decode(GatewayState.self, from: data)
} catch {
@@ -384,47 +392,45 @@ struct HermesFileService: Sendable {
// MARK: - Memory
func loadMemoryProfiles() -> [String] {
let fm = FileManager.default
guard let entries = try? fm.contentsOfDirectory(atPath: HermesPaths.memoriesDir) else { return [] }
nonisolated func loadMemoryProfiles() -> [String] {
guard let entries = try? transport.listDirectory(context.paths.memoriesDir) else { return [] }
return entries.filter { name in
var isDir: ObjCBool = false
let path = HermesPaths.memoriesDir + "/" + name
return fm.fileExists(atPath: path, isDirectory: &isDir) && isDir.boolValue
let path = context.paths.memoriesDir + "/" + name
return transport.stat(path)?.isDirectory == true
}.sorted()
}
func loadMemory(profile: String = "") -> String {
nonisolated func loadMemory(profile: String = "") -> String {
let path = memoryPath(profile: profile, file: "MEMORY.md")
return readFile(path) ?? ""
}
func loadUserProfile(profile: String = "") -> String {
nonisolated func loadUserProfile(profile: String = "") -> String {
let path = memoryPath(profile: profile, file: "USER.md")
return readFile(path) ?? ""
}
func saveMemory(_ content: String, profile: String = "") {
nonisolated func saveMemory(_ content: String, profile: String = "") {
let path = memoryPath(profile: profile, file: "MEMORY.md")
writeFile(path, content: content)
}
func saveUserProfile(_ content: String, profile: String = "") {
nonisolated func saveUserProfile(_ content: String, profile: String = "") {
let path = memoryPath(profile: profile, file: "USER.md")
writeFile(path, content: content)
}
private func memoryPath(profile: String, file: String) -> String {
nonisolated private func memoryPath(profile: String, file: String) -> String {
if profile.isEmpty {
return HermesPaths.memoriesDir + "/" + file
return context.paths.memoriesDir + "/" + file
}
return HermesPaths.memoriesDir + "/" + profile + "/" + file
return context.paths.memoriesDir + "/" + profile + "/" + file
}
// MARK: - Cron
func loadCronJobs() -> [HermesCronJob] {
guard let data = readFileData(HermesPaths.cronJobsJSON) else { return [] }
nonisolated func loadCronJobs() -> [HermesCronJob] {
guard let data = readFileData(context.paths.cronJobsJSON) else { return [] }
do {
let file = try JSONDecoder().decode(CronJobsFile.self, from: data)
return file.jobs
@@ -434,10 +440,9 @@ struct HermesFileService: Sendable {
}
}
func loadCronOutput(jobId: String) -> String? {
let dir = HermesPaths.cronOutputDir
let fm = FileManager.default
guard let files = try? fm.contentsOfDirectory(atPath: dir) else { return nil }
nonisolated func loadCronOutput(jobId: String) -> String? {
let dir = context.paths.cronOutputDir
guard let files = try? transport.listDirectory(dir) else { return nil }
let matching = files.filter { $0.contains(jobId) }.sorted().last
guard let filename = matching else { return nil }
return readFile(dir + "/" + filename)
@@ -445,22 +450,19 @@ struct HermesFileService: Sendable {
// MARK: - Skills
func loadSkills() -> [HermesSkillCategory] {
let dir = HermesPaths.skillsDir
let fm = FileManager.default
guard let categories = try? fm.contentsOfDirectory(atPath: dir) else { return [] }
nonisolated func loadSkills() -> [HermesSkillCategory] {
let dir = context.paths.skillsDir
guard let categories = try? transport.listDirectory(dir) else { return [] }
return categories.sorted().compactMap { categoryName in
let categoryPath = dir + "/" + categoryName
var isDir: ObjCBool = false
guard fm.fileExists(atPath: categoryPath, isDirectory: &isDir), isDir.boolValue else { return nil }
guard let skillNames = try? fm.contentsOfDirectory(atPath: categoryPath) else { return nil }
guard transport.stat(categoryPath)?.isDirectory == true else { return nil }
guard let skillNames = try? transport.listDirectory(categoryPath) else { return nil }
let skills = skillNames.sorted().compactMap { skillName -> HermesSkill? in
let skillPath = categoryPath + "/" + skillName
var isSkillDir: ObjCBool = false
guard fm.fileExists(atPath: skillPath, isDirectory: &isSkillDir), isSkillDir.boolValue else { return nil }
let files = (try? fm.contentsOfDirectory(atPath: skillPath)) ?? []
guard transport.stat(skillPath)?.isDirectory == true else { return nil }
let files = (try? transport.listDirectory(skillPath)) ?? []
let requiredConfig = parseSkillRequiredConfig(skillPath + "/skill.yaml")
return HermesSkill(
id: categoryName + "/" + skillName,
@@ -477,25 +479,25 @@ struct HermesFileService: Sendable {
}
}
func loadSkillContent(path: String) -> String {
nonisolated func loadSkillContent(path: String) -> String {
guard isValidSkillPath(path) else { return "" }
return readFile(path) ?? ""
}
func saveSkillContent(path: String, content: String) {
nonisolated func saveSkillContent(path: String, content: String) {
guard isValidSkillPath(path) else { return }
writeFile(path, content: content)
}
private func isValidSkillPath(_ path: String) -> Bool {
guard !path.contains(".."), path.hasPrefix(HermesPaths.skillsDir) else {
nonisolated private func isValidSkillPath(_ path: String) -> Bool {
guard !path.contains(".."), path.hasPrefix(context.paths.skillsDir) else {
print("[Scarf] Rejected skill path outside skills directory: \(path)")
return false
}
return true
}
private func parseSkillRequiredConfig(_ path: String) -> [String] {
nonisolated private func parseSkillRequiredConfig(_ path: String) -> [String] {
guard let content = readFile(path) else { return [] }
var result: [String] = []
var inRequiredConfig = false
@@ -521,13 +523,12 @@ struct HermesFileService: Sendable {
// MARK: - MCP Servers
func loadMCPServers() -> [HermesMCPServer] {
guard let yaml = readFile(HermesPaths.configYAML) else { return [] }
nonisolated func loadMCPServers() -> [HermesMCPServer] {
guard let yaml = readFile(context.paths.configYAML) else { return [] }
let parsed = parseMCPServersBlock(yaml: yaml)
let fm = FileManager.default
return parsed.map { server in
let tokenPath = HermesPaths.mcpTokensDir + "/" + server.name + ".json"
let hasToken = fm.fileExists(atPath: tokenPath)
let tokenPath = context.paths.mcpTokensDir + "/" + server.name + ".json"
let hasToken = transport.fileExists(tokenPath)
guard hasToken != server.hasOAuthToken else { return server }
return HermesMCPServer(
name: server.name,
@@ -554,7 +555,7 @@ struct HermesFileService: Sendable {
/// Args are written separately via `setMCPServerArgs` to avoid argparse issues with `-`-prefixed args like `-y`.
/// Pipes `y\n` because the CLI prompts to save even when the initial connection check fails (which it will, since we intentionally add no args first).
@discardableResult
func addMCPServerStdio(name: String, command: String, args: [String]) -> (exitCode: Int32, output: String) {
nonisolated func addMCPServerStdio(name: String, command: String, args: [String]) -> (exitCode: Int32, output: String) {
let addResult = runHermesCLI(
args: ["mcp", "add", name, "--command", command],
timeout: 45,
@@ -568,7 +569,7 @@ struct HermesFileService: Sendable {
}
@discardableResult
func addMCPServerHTTP(name: String, url: String, auth: String?) -> (exitCode: Int32, output: String) {
nonisolated func addMCPServerHTTP(name: String, url: String, auth: String?) -> (exitCode: Int32, output: String) {
var cliArgs: [String] = ["mcp", "add", name, "--url", url]
if let auth, !auth.isEmpty {
cliArgs.append(contentsOf: ["--auth", auth])
@@ -577,14 +578,14 @@ struct HermesFileService: Sendable {
}
@discardableResult
func setMCPServerArgs(name: String, args: [String]) -> Bool {
nonisolated func setMCPServerArgs(name: String, args: [String]) -> Bool {
patchMCPServerField(name: name) { entryLines in
Self.replaceOrInsertList(header: "args", items: args, in: &entryLines)
}
}
@discardableResult
func removeMCPServer(name: String) -> (exitCode: Int32, output: String) {
nonisolated func removeMCPServer(name: String) -> (exitCode: Int32, output: String) {
runHermesCLI(args: ["mcp", "remove", name], timeout: 30)
}
@@ -613,7 +614,7 @@ struct HermesFileService: Sendable {
)
}
private static func parseToolListFromTestOutput(_ output: String) -> [String] {
nonisolated private static func parseToolListFromTestOutput(_ output: String) -> [String] {
var tools: [String] = []
for rawLine in output.components(separatedBy: "\n") {
let line = rawLine.trimmingCharacters(in: .whitespaces)
@@ -629,35 +630,35 @@ struct HermesFileService: Sendable {
}
@discardableResult
func toggleMCPServerEnabled(name: String, enabled: Bool) -> Bool {
nonisolated func toggleMCPServerEnabled(name: String, enabled: Bool) -> Bool {
patchMCPServerField(name: name) { entryLines in
Self.replaceOrInsertScalar(key: "enabled", value: enabled ? "true" : "false", in: &entryLines)
}
}
@discardableResult
func setMCPServerEnv(name: String, env: [String: String]) -> Bool {
nonisolated func setMCPServerEnv(name: String, env: [String: String]) -> Bool {
patchMCPServerField(name: name) { entryLines in
Self.replaceOrInsertSubMap(header: "env", map: env, in: &entryLines)
}
}
@discardableResult
func setMCPServerHeaders(name: String, headers: [String: String]) -> Bool {
nonisolated func setMCPServerHeaders(name: String, headers: [String: String]) -> Bool {
patchMCPServerField(name: name) { entryLines in
Self.replaceOrInsertSubMap(header: "headers", map: headers, in: &entryLines)
}
}
@discardableResult
func updateMCPToolFilters(name: String, include: [String], exclude: [String], resources: Bool, prompts: Bool) -> Bool {
nonisolated func updateMCPToolFilters(name: String, include: [String], exclude: [String], resources: Bool, prompts: Bool) -> Bool {
patchMCPServerField(name: name) { entryLines in
Self.replaceOrInsertToolsBlock(include: include, exclude: exclude, resources: resources, prompts: prompts, in: &entryLines)
}
}
@discardableResult
func setMCPServerTimeouts(name: String, timeout: Int?, connectTimeout: Int?) -> Bool {
nonisolated func setMCPServerTimeouts(name: String, timeout: Int?, connectTimeout: Int?) -> Bool {
patchMCPServerField(name: name) { entryLines in
if let timeout {
Self.replaceOrInsertScalar(key: "timeout", value: String(timeout), in: &entryLines)
@@ -673,10 +674,10 @@ struct HermesFileService: Sendable {
}
@discardableResult
func deleteMCPOAuthToken(name: String) -> Bool {
let path = HermesPaths.mcpTokensDir + "/" + name + ".json"
nonisolated func deleteMCPOAuthToken(name: String) -> Bool {
let path = context.paths.mcpTokensDir + "/" + name + ".json"
do {
try FileManager.default.removeItem(atPath: path)
try transport.removeFile(path)
return true
} catch {
return false
@@ -684,7 +685,7 @@ struct HermesFileService: Sendable {
}
@discardableResult
func restartGateway() -> (exitCode: Int32, output: String) {
nonisolated func restartGateway() -> (exitCode: Int32, output: String) {
runHermesCLI(args: ["gateway", "restart"], timeout: 30)
}
@@ -696,7 +697,7 @@ struct HermesFileService: Sendable {
let suffix: [String]
}
private func extractMCPBlock(yaml: String) -> MCPBlockLocation {
nonisolated private func extractMCPBlock(yaml: String) -> MCPBlockLocation {
let lines = yaml.components(separatedBy: "\n")
var blockStart = -1
var blockEnd = lines.count
@@ -739,7 +740,7 @@ struct HermesFileService: Sendable {
)
}
fileprivate func parseMCPServersBlock(yaml: String) -> [HermesMCPServer] {
nonisolated fileprivate func parseMCPServersBlock(yaml: String) -> [HermesMCPServer] {
let location = extractMCPBlock(yaml: yaml)
guard location.block.count > 1 else { return [] }
@@ -875,8 +876,8 @@ struct HermesFileService: Sendable {
// MARK: - MCP YAML: surgical patcher
private func patchMCPServerField(name: String, mutate: (inout [String]) -> Void) -> Bool {
guard let yaml = readFile(HermesPaths.configYAML) else { return false }
nonisolated private func patchMCPServerField(name: String, mutate: (inout [String]) -> Void) -> Bool {
guard let yaml = readFile(context.paths.configYAML) else { return false }
let location = extractMCPBlock(yaml: yaml)
guard !location.block.isEmpty else { return false }
@@ -925,13 +926,13 @@ struct HermesFileService: Sendable {
combined.append(contentsOf: block)
combined.append(contentsOf: location.suffix)
let newYAML = combined.joined(separator: "\n")
writeFile(HermesPaths.configYAML, content: newYAML)
writeFile(context.paths.configYAML, content: newYAML)
return true
}
// MARK: - MCP YAML: mutators
private static func replaceOrInsertScalar(key: String, value: String, in lines: inout [String]) {
nonisolated private static func replaceOrInsertScalar(key: String, value: String, in lines: inout [String]) {
// entry header is at lines[0] at indent 2. Scalars live at indent 4.
for index in 1..<lines.count {
let line = lines[index]
@@ -949,7 +950,7 @@ struct HermesFileService: Sendable {
lines.insert(" \(key): \(value)", at: 1)
}
private static func removeScalar(key: String, in lines: inout [String]) {
nonisolated private static func removeScalar(key: String, in lines: inout [String]) {
var removeIndex: Int?
for index in 1..<lines.count {
let line = lines[index]
@@ -968,7 +969,7 @@ struct HermesFileService: Sendable {
}
}
private static func replaceOrInsertList(header: String, items: [String], in lines: inout [String]) {
nonisolated private static func replaceOrInsertList(header: String, items: [String], in lines: inout [String]) {
var headerIndex: Int?
var removeEnd: Int?
for index in 1..<lines.count {
@@ -1026,7 +1027,7 @@ struct HermesFileService: Sendable {
}
}
private static func replaceOrInsertSubMap(header: String, map: [String: String], in lines: inout [String]) {
nonisolated private static func replaceOrInsertSubMap(header: String, map: [String: String], in lines: inout [String]) {
var headerIndex: Int?
var removeEnd: Int?
for index in 1..<lines.count {
@@ -1084,7 +1085,7 @@ struct HermesFileService: Sendable {
}
}
private static func replaceOrInsertToolsBlock(include: [String], exclude: [String], resources: Bool, prompts: Bool, in lines: inout [String]) {
nonisolated private static func replaceOrInsertToolsBlock(include: [String], exclude: [String], resources: Bool, prompts: Bool, in lines: inout [String]) {
var headerIndex: Int?
var removeEnd: Int?
for index in 1..<lines.count {
@@ -1133,7 +1134,7 @@ struct HermesFileService: Sendable {
}
}
private static func yamlScalar(_ value: String) -> String {
nonisolated private static func yamlScalar(_ value: String) -> String {
if value.isEmpty { return "\"\"" }
// YAML 1.2 reserved indicators that change meaning at the start of a
// scalar: @ * & ? | > ! % , [ ] { } < ` ' " — plus space (would be
@@ -1157,7 +1158,7 @@ struct HermesFileService: Sendable {
return value
}
private static func unquote(_ value: String) -> String {
nonisolated private static func unquote(_ value: String) -> String {
var v = value
if (v.hasPrefix("\"") && v.hasSuffix("\"") && v.count >= 2) || (v.hasPrefix("'") && v.hasSuffix("'") && v.count >= 2) {
v = String(v.dropFirst().dropLast())
@@ -1167,46 +1168,56 @@ struct HermesFileService: Sendable {
// MARK: - Hermes Process
func isHermesRunning() -> Bool {
nonisolated func isHermesRunning() -> Bool {
hermesPID() != nil
}
func hermesPID() -> pid_t? {
let pipe = Pipe()
let process = Process()
process.executableURL = URL(fileURLWithPath: "/usr/bin/pgrep")
process.arguments = ["-f", "hermes"]
process.standardOutput = pipe
process.standardError = Pipe()
do {
try process.run()
process.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
guard let firstLine = output.components(separatedBy: "\n").first(where: { !$0.isEmpty }),
let pid = pid_t(firstLine.trimmingCharacters(in: .whitespaces)) else { return nil }
return pid
} catch {
return nil
}
nonisolated func hermesPID() -> pid_t? {
// Run `pgrep -f hermes` either locally or via the transport. On
// remote hosts we trust `pgrep` to be present — it's standard on
// Linux and macOS. On failure we conservatively return nil rather
// than pretending Hermes is down: the caller will see
// isHermesRunning==false, which is already the "unknown" UX.
let result = try? transport.runProcess(
executable: "/usr/bin/pgrep",
args: ["-f", "hermes"],
stdin: nil,
timeout: 5
)
guard let result, let firstLine = result.stdoutString
.components(separatedBy: "\n")
.first(where: { !$0.isEmpty }),
let pid = pid_t(firstLine.trimmingCharacters(in: .whitespaces)) else { return nil }
return pid
}
@discardableResult
func stopHermes() -> Bool {
nonisolated func stopHermes() -> Bool {
// v0.9.0 fixed `hermes gateway stop` so it issues `launchctl bootout` and
// waits for exit. Use the CLI to avoid racing launchd's KeepAlive respawn.
if runHermesCLI(args: ["gateway", "stop"]).exitCode == 0 {
return true
}
guard let pid = hermesPID() else { return false }
// For remote we can't issue a raw `kill(2)` — route through `kill(1)`
// via the transport. Local uses the syscall for its minimal overhead.
if context.isRemote {
let result = try? transport.runProcess(
executable: "/bin/kill",
args: ["-TERM", String(pid)],
stdin: nil,
timeout: 5
)
return (result?.exitCode ?? -1) == 0
}
return kill(pid, SIGTERM) == 0
}
nonisolated func hermesBinaryPath() -> String? {
// Single source of truth for install-location candidates lives in
// HermesPaths.hermesBinaryCandidates — keeps pipx/brew/manual lookups
// HermesPathSet.hermesBinaryCandidates — keeps pipx/brew/manual lookups
// consistent across the app.
return HermesPaths.hermesBinaryCandidates
return HermesPathSet.hermesBinaryCandidates
.first { FileManager.default.isExecutableFile(atPath: $0) }
}
@@ -1216,14 +1227,20 @@ struct HermesFileService: Sendable {
/// resolves AI provider auth by reading env vars — a GUI-launched Scarf
/// subprocess sees none of the `export ANTHROPIC_API_KEY=…` lines from
/// the user's shell init files.
private static let shellEnvKeys: [String] = [
nonisolated private static let shellEnvKeys: [String] = [
"PATH",
"ANTHROPIC_API_KEY", "ANTHROPIC_TOKEN", "ANTHROPIC_BASE_URL",
"OPENAI_API_KEY", "OPENAI_BASE_URL",
"OPENROUTER_API_KEY",
"GEMINI_API_KEY", "GOOGLE_API_KEY",
"GROQ_API_KEY", "MISTRAL_API_KEY", "XAI_API_KEY",
"CLAUDE_CODE_OAUTH_TOKEN"
"CLAUDE_CODE_OAUTH_TOKEN",
// SSH agent socket — set by 1Password / Secretive / a manual
// `ssh-add` in the user's shell rc. GUI-launched apps don't inherit
// these by default, so without harvesting them here, `ssh` spawned
// from Scarf can't reach the agent and authentication fails with
// "Permission denied" (exit 255) even though terminal ssh works.
"SSH_AUTH_SOCK", "SSH_AGENT_PID"
]
/// Env vars harvested from the user's login shell. Computed once and cached.
@@ -1238,7 +1255,7 @@ struct HermesFileService: Sendable {
/// 2. If that yields no PATH (timed out / prompt framework broke it),
/// fall back to `zsh -l` (login only) with a 3-second timeout.
/// 3. If that also fails, hardcoded sane-default PATH; no credentials.
private static let enrichedShellEnv: [String: String] = {
nonisolated private static let enrichedShellEnv: [String: String] = {
// Build a shell script that prints `KEY\0VALUE\0` for each key.
// Using printf with \0 as separator lets us unambiguously split the
// output even if a value contains newlines.
@@ -1278,7 +1295,7 @@ struct HermesFileService: Sendable {
/// `KEY\0VALUE\0`-delimited output. Returns nil on timeout/failure.
/// When `interactive` is true, injects env vars that suppress common
/// prompt frameworks so the shell doesn't hang waiting for terminal setup.
private static func runShellProbe(script: String, interactive: Bool, timeout: TimeInterval) -> [String: String]? {
nonisolated private static func runShellProbe(script: String, interactive: Bool, timeout: TimeInterval) -> [String: String]? {
let pipe = Pipe()
let errPipe = Pipe()
let process = Process()
@@ -1366,19 +1383,27 @@ struct HermesFileService: Sendable {
/// delegation tasks
/// Used by Chat to warn the user before `hermes acp` fails on send with
/// "No Anthropic credentials found".
nonisolated static func hasAnyAICredential() -> Bool {
let credentialKeys = shellEnvKeys.filter { $0 != "PATH" && $0 != "ANTHROPIC_BASE_URL" && $0 != "OPENAI_BASE_URL" }
let env = enrichedEnvironment()
for key in credentialKeys {
if let value = env[key], !value.isEmpty {
return true
///
/// **Local context:** also checks Scarf's process / login-shell env.
/// **Remote context:** skips that step — our process env has nothing to
/// do with the remote `hermes acp`'s runtime env. The remote `.env` /
/// `auth.json` / `config.yaml` are still checked through the transport.
nonisolated func hasAnyAICredential() -> Bool {
let credentialKeys = Self.shellEnvKeys.filter { $0 != "PATH" && $0 != "ANTHROPIC_BASE_URL" && $0 != "OPENAI_BASE_URL" }
if !context.isRemote {
let env = Self.enrichedEnvironment()
for key in credentialKeys {
if let value = env[key], !value.isEmpty {
return true
}
}
}
// Scan ~/.hermes/.env for KEY= lines. Uses a simple substring check —
// good enough for a preflight hint; hermes itself does the real parse.
let envPath = HermesPaths.home + "/.env"
if let data = try? String(contentsOfFile: envPath, encoding: .utf8) {
for line in data.split(separator: "\n") {
// Scan .env (via transport — local file or scp) for KEY= lines.
// Uses a simple substring check — good enough for a preflight hint;
// hermes itself does the real parse.
if let envText = readFile(context.paths.envFile) {
for line in envText.split(separator: "\n") {
let trimmed = line.trimmingCharacters(in: .whitespaces)
if trimmed.isEmpty || trimmed.hasPrefix("#") { continue }
for key in credentialKeys where trimmed.hasPrefix("\(key)=") || trimmed.hasPrefix("export \(key)=") {
@@ -1392,12 +1417,11 @@ struct HermesFileService: Sendable {
}
}
}
// Scan ~/.hermes/auth.json — the Credential Pools file written by the
// Configure → Credential Pools UI. Schema is
// Scan auth.json (Credential Pools file written by the Configure →
// Credential Pools UI). Schema:
// { "credential_pool": { "<provider>": [ { "access_token": "...", ... }, ... ] } }
// Defensive parse: any malformed input falls through to the next check.
let authPath = HermesPaths.home + "/auth.json"
if let data = try? Data(contentsOf: URL(fileURLWithPath: authPath)),
if let data = readFileData(context.paths.authJSON),
let root = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
let pool = root["credential_pool"] as? [String: Any] {
for (_, entries) in pool {
@@ -1409,11 +1433,10 @@ struct HermesFileService: Sendable {
}
}
}
// Scan ~/.hermes/config.yaml for `api_key:` lines with a non-empty
// value. Covers both `auxiliary.<task>.api_key` and `delegation.api_key`
// without needing to parse the YAML structure — any leaf `api_key: ...`
// with a value means Hermes has a credential to fall back on.
if let text = try? String(contentsOfFile: HermesPaths.configYAML, encoding: .utf8) {
// Scan config.yaml for `api_key:` lines with a non-empty value.
// Covers both `auxiliary.<task>.api_key` and `delegation.api_key`
// without needing to parse YAML structure.
if let text = readFile(context.paths.configYAML) {
for line in text.split(separator: "\n") {
let trimmed = line.trimmingCharacters(in: .whitespaces)
guard trimmed.hasPrefix("api_key:") else { continue }
@@ -1427,41 +1450,36 @@ struct HermesFileService: Sendable {
@discardableResult
nonisolated func runHermesCLI(args: [String], timeout: TimeInterval = 60, stdinInput: String? = nil) -> (exitCode: Int32, output: String) {
guard let binary = hermesBinaryPath() else { return (-1, "") }
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
let stdinPipe: Pipe? = stdinInput != nil ? Pipe() : nil
let process = Process()
process.executableURL = URL(fileURLWithPath: binary)
process.arguments = args
process.environment = Self.enrichedEnvironment()
process.standardOutput = stdoutPipe
process.standardError = stderrPipe
if let stdinPipe { process.standardInput = stdinPipe }
defer {
try? stdoutPipe.fileHandleForReading.close()
try? stdoutPipe.fileHandleForWriting.close()
try? stderrPipe.fileHandleForReading.close()
try? stderrPipe.fileHandleForWriting.close()
try? stdinPipe?.fileHandleForReading.close()
try? stdinPipe?.fileHandleForWriting.close()
// Resolve the executable path — for remote, prefer the cached
// `hermesBinaryHint` on the SSHConfig (populated by the Test
// Connection probe) and fall back to bare `hermes` which relies on
// the remote user's `$PATH`.
let binary: String
if context.isRemote {
binary = context.paths.hermesBinary
} else {
guard let local = hermesBinaryPath() else { return (-1, "") }
binary = local
}
let stdinData = stdinInput?.data(using: .utf8)
do {
try process.run()
if let stdinInput, let stdinPipe, let data = stdinInput.data(using: .utf8) {
stdinPipe.fileHandleForWriting.write(data)
try? stdinPipe.fileHandleForWriting.close()
}
let deadline = Date().addingTimeInterval(timeout)
while process.isRunning && Date() < deadline {
Thread.sleep(forTimeInterval: 0.05)
}
if process.isRunning { process.terminate() }
process.waitUntilExit()
let outData = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
let errData = stderrPipe.fileHandleForReading.readDataToEndOfFile()
let combined = (String(data: outData, encoding: .utf8) ?? "") + (String(data: errData, encoding: .utf8) ?? "")
return (process.terminationStatus, combined)
let result = try transport.runProcess(
executable: binary,
args: args,
stdin: stdinData,
timeout: timeout
)
// Match the legacy signature: combined stdout+stderr in one
// String so callers that grep through output don't need to
// change. Stderr after stdout mirrors what the old Process impl
// produced since both pipes were drained in that order.
let combined = result.stdoutString + result.stderrString
return (result.exitCode, combined)
} catch let error as TransportError {
return (-1, error.diagnosticStderr.isEmpty
? (error.errorDescription ?? "transport error")
: error.diagnosticStderr)
} catch {
return (-1, error.localizedDescription)
}
@@ -1469,17 +1487,26 @@ struct HermesFileService: Sendable {
// MARK: - File I/O
private func readFile(_ path: String) -> String? {
try? String(contentsOfFile: path, encoding: .utf8)
/// Read a UTF-8 text file through the transport. Missing files and any
/// transport error surface as `nil` — callers treat missing/unreadable
/// the same way they always have.
nonisolated private func readFile(_ path: String) -> String? {
guard let data = try? transport.readFile(path) else { return nil }
return String(data: data, encoding: .utf8)
}
private func readFileData(_ path: String) -> Data? {
FileManager.default.contents(atPath: path)
nonisolated private func readFileData(_ path: String) -> Data? {
try? transport.readFile(path)
}
private func writeFile(_ path: String, content: String) {
/// Write a UTF-8 text file atomically through the transport. Matches the
/// old pre-transport behavior (print + swallow on error) because the
/// callers don't have a UI path for surfacing I/O failures — that's
/// planned for Phase 4.
nonisolated private func writeFile(_ path: String, content: String) {
guard let data = content.data(using: .utf8) else { return }
do {
try content.write(toFile: path, atomically: true, encoding: .utf8)
try transport.writeFile(path, data: data)
} catch {
print("[Scarf] Failed to write \(path): \(error.localizedDescription)")
}
scarf/scarf/Core/Services/HermesFileWatcher.swift
+59 -20
View File
@@ -6,33 +6,66 @@ final class HermesFileWatcher {
private var coreSources: [DispatchSourceFileSystemObject] = []
private var projectSources: [DispatchSourceFileSystemObject] = []
private var timer: Timer?
/// Remote polling task. Non-nil only when `context.isRemote`. Cancelled
/// on `stopWatching()`.
private var remotePollTask: Task<Void, Never>?
let context: ServerContext
private let transport: any ServerTransport
nonisolated init(context: ServerContext = .local) {
self.context = context
self.transport = context.makeTransport()
}
/// Canonical list of paths we observe. Used for both FSEvents (local)
/// and mtime polling (remote).
private var watchedCorePaths: [String] {
let paths = context.paths
return [
paths.stateDB,
paths.stateDB + "-wal",
paths.configYAML,
paths.home + "/.env",
paths.memoryMD,
paths.userMD,
paths.cronJobsJSON,
paths.gatewayStateJSON,
paths.agentLog,
paths.errorsLog,
paths.gatewayLog,
paths.projectsRegistry,
paths.mcpTokensDir
]
}
func startWatching() {
let paths = [
HermesPaths.stateDB,
HermesPaths.stateDB + "-wal",
HermesPaths.configYAML,
HermesPaths.home + "/.env", // Platform setup forms write here.
HermesPaths.memoryMD,
HermesPaths.userMD,
HermesPaths.cronJobsJSON,
HermesPaths.gatewayStateJSON,
HermesPaths.agentLog,
HermesPaths.errorsLog,
HermesPaths.gatewayLog,
HermesPaths.projectsRegistry,
HermesPaths.mcpTokensDir
]
if context.isRemote {
// FSEvents doesn't reach across SSH. Drive lastChangeDate off
// the transport's AsyncStream, which polls stat mtime on a
// shared ControlMaster channel (~5ms per tick).
let stream = transport.watchPaths(watchedCorePaths)
remotePollTask = Task { [weak self] in
for await _ in stream {
await MainActor.run { [weak self] in
self?.lastChangeDate = Date()
}
}
}
return
}
for path in paths {
for path in watchedCorePaths {
if let source = makeSource(for: path) {
coreSources.append(source)
}
}
timer = Timer.scheduledTimer(withTimeInterval: 5.0, repeats: true) { [weak self] _ in
self?.lastChangeDate = Date()
}
// No heartbeat timer: every observing view runs its `.onChange`
// refresh whenever `lastChangeDate` ticks, so a 5s unconditional
// tick was triggering wasted reloads across many subscribers
// (Dashboard, Memory, Cron, Gateway, Platforms, Projects, Chat).
// FSEvents reliably fires on real changes; menu-bar Start/Stop
// touches `gateway_state.json` which the watcher catches.
}
func stopWatching() {
@@ -43,9 +76,15 @@ final class HermesFileWatcher {
projectSources.removeAll()
timer?.invalidate()
timer = nil
remotePollTask?.cancel()
remotePollTask = nil
}
func updateProjectWatches(_ dashboardPaths: [String]) {
// Remote contexts don't support per-project FSEvents watches today —
// the shared mtime poll covers the core set. Adding per-project
// polling is a Phase 4 polish item.
guard !context.isRemote else { return }
for source in projectSources {
source.cancel()
}
scarf/scarf/Core/Services/HermesLogService.swift
+76 -6
View File
@@ -33,10 +33,46 @@ actor HermesLogService {
private var currentPath: String?
private var entryCounter = 0
/// Remote tailing state. When set, we're reading from `ssh host tail -F`
/// instead of a local file. Process stdout pipe drives `readNewLines()`;
/// process lifecycle is the actor's responsibility.
private var remoteTailProcess: Process?
private var remoteTailBuffer: String = ""
let context: ServerContext
private let transport: any ServerTransport
init(context: ServerContext = .local) {
self.context = context
self.transport = context.makeTransport()
}
func openLog(path: String) {
closeLog()
currentPath = path
fileHandle = FileHandle(forReadingAtPath: path)
if context.isRemote {
// Spawn `ssh host tail -F` and pipe stdout into our buffer. `-F`
// follows the file through rotations — important for remote
// log rotation setups (logrotate).
let proc = transport.makeProcess(
executable: "/usr/bin/tail",
args: ["-n", String(QueryDefaults.logLineLimit), "-F", path]
)
let outPipe = Pipe()
proc.standardOutput = outPipe
proc.standardError = Pipe()
do {
try proc.run()
remoteTailProcess = proc
fileHandle = outPipe.fileHandleForReading
} catch {
print("[Scarf] Failed to start remote tail: \(error.localizedDescription)")
remoteTailProcess = nil
fileHandle = nil
}
} else {
fileHandle = FileHandle(forReadingAtPath: path)
}
}
func closeLog() {
@@ -47,11 +83,29 @@ actor HermesLogService {
}
fileHandle = nil
currentPath = nil
if let proc = remoteTailProcess, proc.isRunning {
proc.terminate()
}
remoteTailProcess = nil
remoteTailBuffer = ""
}
func readLastLines(count: Int = QueryDefaults.logLineLimit) -> [LogEntry] {
guard let path = currentPath,
let data = FileManager.default.contents(atPath: path) else { return [] }
guard let path = currentPath else { return [] }
if context.isRemote {
// For the initial load we bypass the streaming tail and run a
// one-shot `tail -n <count>` for a clean bounded read.
let result = try? transport.runProcess(
executable: "/usr/bin/tail",
args: ["-n", String(count), path],
stdin: nil,
timeout: 30
)
let content = result?.stdoutString ?? ""
let lines = content.components(separatedBy: "\n").filter { !$0.isEmpty }
return lines.map { parseLine($0) }
}
guard let data = FileManager.default.contents(atPath: path) else { return [] }
let content = String(data: data, encoding: .utf8) ?? ""
let lines = content.components(separatedBy: "\n").filter { !$0.isEmpty }
let lastLines = Array(lines.suffix(count))
@@ -62,13 +116,29 @@ actor HermesLogService {
guard let handle = fileHandle else { return [] }
let data = handle.availableData
guard !data.isEmpty else { return [] }
let content = String(data: data, encoding: .utf8) ?? ""
let lines = content.components(separatedBy: "\n").filter { !$0.isEmpty }
let chunk = String(data: data, encoding: .utf8) ?? ""
if context.isRemote {
// Remote tail emits bytes as they arrive — not line-aligned.
// Buffer partials across reads so we don't split a line mid-way.
remoteTailBuffer += chunk
guard let lastNewline = remoteTailBuffer.lastIndex(of: "\n") else {
return []
}
let complete = String(remoteTailBuffer[..<lastNewline])
remoteTailBuffer = String(remoteTailBuffer[remoteTailBuffer.index(after: lastNewline)...])
let lines = complete.components(separatedBy: "\n").filter { !$0.isEmpty }
return lines.map { parseLine($0) }
}
let lines = chunk.components(separatedBy: "\n").filter { !$0.isEmpty }
return lines.map { parseLine($0) }
}
func seekToEnd() {
fileHandle?.seekToEndOfFile()
// Only meaningful for local FileHandles — remote tail starts at the
// end implicitly after `readLastLines` drained the initial load.
if !context.isRemote {
fileHandle?.seekToEndOfFile()
}
}
private func parseLine(_ line: String) -> LogEntry {
scarf/scarf/Core/Services/ModelCatalogService.swift
+10 -2
View File
@@ -53,9 +53,17 @@ struct HermesProviderInfo: Sendable, Identifiable, Hashable {
struct ModelCatalogService: Sendable {
private let logger = Logger(subsystem: "com.scarf", category: "ModelCatalogService")
let path: String
let transport: any ServerTransport
init(path: String = HermesPaths.home + "/models_dev_cache.json") {
nonisolated init(context: ServerContext = .local) {
self.path = context.paths.home + "/models_dev_cache.json"
self.transport = context.makeTransport()
}
/// Escape hatch for tests.
init(path: String) {
self.path = path
self.transport = LocalTransport()
}
/// All providers, sorted by display name.
@@ -159,7 +167,7 @@ struct ModelCatalogService: Sendable {
// MARK: - Decoding
private func loadCatalog() -> [String: ProviderEntry]? {
guard let data = try? Data(contentsOf: URL(fileURLWithPath: path)) else {
guard let data = try? transport.readFile(path) else {
return nil
}
do {
scarf/scarf/Core/Services/ProjectDashboardService.swift
+19 -12
View File
@@ -2,10 +2,18 @@ import Foundation
struct ProjectDashboardService: Sendable {
let context: ServerContext
let transport: any ServerTransport
nonisolated init(context: ServerContext = .local) {
self.context = context
self.transport = context.makeTransport()
}
// MARK: - Registry
func loadRegistry() -> ProjectRegistry {
guard let data = FileManager.default.contents(atPath: HermesPaths.projectsRegistry) else {
guard let data = try? transport.readFile(context.paths.projectsRegistry) else {
return ProjectRegistry(projects: [])
}
do {
@@ -17,10 +25,10 @@ struct ProjectDashboardService: Sendable {
}
func saveRegistry(_ registry: ProjectRegistry) {
let dir = HermesPaths.scarfDir
if !FileManager.default.fileExists(atPath: dir) {
let dir = context.paths.scarfDir
if !transport.fileExists(dir) {
do {
try FileManager.default.createDirectory(atPath: dir, withIntermediateDirectories: true)
try transport.createDirectory(dir)
} catch {
print("[Scarf] Failed to create scarf directory: \(error.localizedDescription)")
return
@@ -28,18 +36,20 @@ struct ProjectDashboardService: Sendable {
}
guard let data = try? JSONEncoder().encode(registry) else { return }
// Pretty-print for readability (agents may read this file)
let writeData: Data
if let pretty = try? JSONSerialization.jsonObject(with: data),
let formatted = try? JSONSerialization.data(withJSONObject: pretty, options: [.prettyPrinted, .sortedKeys]) {
FileManager.default.createFile(atPath: HermesPaths.projectsRegistry, contents: formatted)
writeData = formatted
} else {
FileManager.default.createFile(atPath: HermesPaths.projectsRegistry, contents: data)
writeData = data
}
try? transport.writeFile(context.paths.projectsRegistry, data: writeData)
}
// MARK: - Dashboard
func loadDashboard(for project: ProjectEntry) -> ProjectDashboard? {
guard let data = FileManager.default.contents(atPath: project.dashboardPath) else {
guard let data = try? transport.readFile(project.dashboardPath) else {
return nil
}
do {
@@ -51,13 +61,10 @@ struct ProjectDashboardService: Sendable {
}
func dashboardExists(for project: ProjectEntry) -> Bool {
FileManager.default.fileExists(atPath: project.dashboardPath)
transport.fileExists(project.dashboardPath)
}
func dashboardModificationDate(for project: ProjectEntry) -> Date? {
guard let attrs = try? FileManager.default.attributesOfItem(atPath: project.dashboardPath) else {
return nil
}
return attrs[.modificationDate] as? Date
transport.stat(project.dashboardPath)?.mtime
}
}
scarf/scarf/Core/Transport/LocalTransport.swift
+191
View File
@@ -0,0 +1,191 @@
import Foundation
import os
/// `ServerTransport` over the local filesystem. Thin wrapper around
/// `FileManager`, `Process`, and `DispatchSourceFileSystemObject` — the APIs
/// services were already using before Phase 2.
struct LocalTransport: ServerTransport {
nonisolated private static let logger = Logger(subsystem: "com.scarf", category: "LocalTransport")
let contextID: ServerID
let isRemote: Bool = false
nonisolated init(contextID: ServerID = ServerContext.local.id) {
self.contextID = contextID
}
// MARK: - Files
func readFile(_ path: String) throws -> Data {
do {
return try Data(contentsOf: URL(fileURLWithPath: path))
} catch {
throw TransportError.fileIO(path: path, underlying: error.localizedDescription)
}
}
func writeFile(_ path: String, data: Data) throws {
let tmp = path + ".scarf.tmp"
do {
try data.write(to: URL(fileURLWithPath: tmp))
// Preserve `0600` for dotfiles holding secrets (.env, .auth, ...).
// The existing files already use 0600 via HermesEnvService; we
// mirror that here so a brand-new file created via this write
// also starts with safe permissions.
if Self.shouldEnforcePrivateMode(for: path) {
try FileManager.default.setAttributes([.posixPermissions: 0o600], ofItemAtPath: tmp)
}
// Atomic swap onto the final path.
let destURL = URL(fileURLWithPath: path)
let tmpURL = URL(fileURLWithPath: tmp)
if FileManager.default.fileExists(atPath: path) {
_ = try FileManager.default.replaceItemAt(destURL, withItemAt: tmpURL)
} else {
// Ensure parent exists.
let parent = (path as NSString).deletingLastPathComponent
if !parent.isEmpty, !FileManager.default.fileExists(atPath: parent) {
try FileManager.default.createDirectory(atPath: parent, withIntermediateDirectories: true)
}
try FileManager.default.moveItem(at: tmpURL, to: destURL)
}
} catch {
try? FileManager.default.removeItem(atPath: tmp)
throw TransportError.fileIO(path: path, underlying: error.localizedDescription)
}
}
func fileExists(_ path: String) -> Bool {
FileManager.default.fileExists(atPath: path)
}
func stat(_ path: String) -> FileStat? {
guard let attrs = try? FileManager.default.attributesOfItem(atPath: path) else {
return nil
}
let size = (attrs[.size] as? Int64) ?? Int64((attrs[.size] as? Int) ?? 0)
let mtime = (attrs[.modificationDate] as? Date) ?? Date(timeIntervalSince1970: 0)
let isDir = (attrs[.type] as? FileAttributeType) == .typeDirectory
return FileStat(size: size, mtime: mtime, isDirectory: isDir)
}
func listDirectory(_ path: String) throws -> [String] {
do {
return try FileManager.default.contentsOfDirectory(atPath: path)
} catch {
throw TransportError.fileIO(path: path, underlying: error.localizedDescription)
}
}
func createDirectory(_ path: String) throws {
do {
try FileManager.default.createDirectory(atPath: path, withIntermediateDirectories: true)
} catch {
throw TransportError.fileIO(path: path, underlying: error.localizedDescription)
}
}
func removeFile(_ path: String) throws {
guard FileManager.default.fileExists(atPath: path) else { return }
do {
try FileManager.default.removeItem(atPath: path)
} catch {
throw TransportError.fileIO(path: path, underlying: error.localizedDescription)
}
}
// MARK: - Processes
func runProcess(executable: String, args: [String], stdin: Data?, timeout: TimeInterval?) throws -> ProcessResult {
let proc = Process()
proc.executableURL = URL(fileURLWithPath: executable)
proc.arguments = args
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
let stdinPipe = Pipe()
proc.standardOutput = stdoutPipe
proc.standardError = stderrPipe
if stdin != nil { proc.standardInput = stdinPipe }
do {
try proc.run()
} catch {
throw TransportError.other(message: "Failed to launch \(executable): \(error.localizedDescription)")
}
if let stdin {
try? stdinPipe.fileHandleForWriting.write(contentsOf: stdin)
try? stdinPipe.fileHandleForWriting.close()
}
// Timeout handling: poll every 100ms up to timeout, kill on overrun.
if let timeout {
let deadline = Date().addingTimeInterval(timeout)
while proc.isRunning && Date() < deadline {
Thread.sleep(forTimeInterval: 0.1)
}
if proc.isRunning {
proc.terminate()
let partial = (try? stdoutPipe.fileHandleForReading.readToEnd()) ?? Data()
try? stdoutPipe.fileHandleForReading.close()
try? stderrPipe.fileHandleForReading.close()
throw TransportError.timeout(seconds: timeout, partialStdout: partial)
}
} else {
proc.waitUntilExit()
}
let out = (try? stdoutPipe.fileHandleForReading.readToEnd()) ?? Data()
let err = (try? stderrPipe.fileHandleForReading.readToEnd()) ?? Data()
try? stdoutPipe.fileHandleForReading.close()
try? stderrPipe.fileHandleForReading.close()
try? stdinPipe.fileHandleForWriting.close()
return ProcessResult(exitCode: proc.terminationStatus, stdout: out, stderr: err)
}
func makeProcess(executable: String, args: [String]) -> Process {
let proc = Process()
proc.executableURL = URL(fileURLWithPath: executable)
proc.arguments = args
return proc
}
// MARK: - SQLite
func snapshotSQLite(remotePath: String) throws -> URL {
// Local case: no copy needed. Services open the path directly.
URL(fileURLWithPath: remotePath)
}
// MARK: - Watching
func watchPaths(_ paths: [String]) -> AsyncStream<WatchEvent> {
AsyncStream { continuation in
// Build the source list immutably, then hand a value-typed copy
// to onTermination. Swift 6's concurrent-capture rule rejects a
// `var sources` shared between the outer builder and the inner
// termination closure.
let sources: [DispatchSourceFileSystemObject] = paths.compactMap { path in
let fd = Darwin.open(path, O_EVTONLY)
guard fd >= 0 else { return nil }
let src = DispatchSource.makeFileSystemObjectSource(
fileDescriptor: fd,
eventMask: [.write, .extend, .rename],
queue: .global()
)
src.setEventHandler { continuation.yield(.anyChanged) }
src.setCancelHandler { Darwin.close(fd) }
src.resume()
return src
}
continuation.onTermination = { _ in
for s in sources { s.cancel() }
}
}
}
// MARK: - Helpers
/// Heuristic: files that conventionally hold secrets should be created
/// with restrictive permissions so a future `scp` or editor doesn't end
/// up exposing them.
private static func shouldEnforcePrivateMode(for path: String) -> Bool {
let name = (path as NSString).lastPathComponent
return name == ".env" || name == "auth.json" || name.hasSuffix("-tokens.json")
}
}
scarf/scarf/Core/Transport/SSHTransport.swift
+529
View File
@@ -0,0 +1,529 @@
import Foundation
import os
/// `ServerTransport` that reaches a remote Hermes installation through the
/// system `ssh`, `scp`, and `sftp` binaries.
///
/// Why system ssh (not a native library): the user's `~/.ssh/config`,
/// ssh-agent, 1Password/Secretive agents, ProxyJump, and ControlMaster
/// multiplexing all work for free. OpenSSH also owns crypto — a smaller
/// audit surface than dragging libssh2 along.
///
/// **ControlMaster matters.** Without it, every remote primitive (stat, cat,
/// cp) authenticates from scratch — 500ms-2s per call. With ControlMaster
/// `auto` + `ControlPersist 600`, the first call authenticates, subsequent
/// calls reuse the same TCP/crypto session at ~5ms each. We point the
/// control socket at `~/Library/Caches/scarf/ssh/%C` so multiple Scarf
/// windows pointed at the same host share one session cleanly.
struct SSHTransport: ServerTransport {
nonisolated private static let logger = Logger(subsystem: "com.scarf", category: "SSHTransport")
let contextID: ServerID
let isRemote: Bool = true
let config: SSHConfig
let displayName: String
nonisolated init(contextID: ServerID, config: SSHConfig, displayName: String) {
self.contextID = contextID
self.config = config
self.displayName = displayName
}
// MARK: - ssh/scp binary discovery
nonisolated private var sshBinary: String { "/usr/bin/ssh" }
nonisolated private var scpBinary: String { "/usr/bin/scp" }
/// The fully-qualified `user@host` spec (or just `host` if no user set).
nonisolated private var hostSpec: String {
if let user = config.user, !user.isEmpty { return "\(user)@\(config.host)" }
return config.host
}
/// Absolute path to this server's ControlMaster socket directory. One
/// socket per server, lives under the app's Caches so macOS can sweep it.
nonisolated private var controlDir: String { Self.controlDirPath() }
/// Per-server snapshot cache directory (for SQLite `.backup` drops).
nonisolated private var snapshotDir: String { Self.snapshotDirPath(for: contextID) }
/// Shared control-master socket directory (one dir, sockets within it are
/// per-host via OpenSSH's `%C` token). Exposed as a static so
/// cleanup paths (`ServerRegistry.removeServer`, app-launch sweep) can
/// compute it without instantiating a transport.
nonisolated static func controlDirPath() -> String {
let base = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first?.path
?? NSHomeDirectory() + "/Library/Caches"
return base + "/scarf/ssh"
}
/// Snapshot cache directory for a given server. Stable per-ID so repeated
/// connections to the same server share the cache, and so cleanup can
/// find it from the ID alone.
nonisolated static func snapshotDirPath(for contextID: ServerID) -> String {
let base = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first?.path
?? NSHomeDirectory() + "/Library/Caches"
return base + "/scarf/snapshots/\(contextID.uuidString)"
}
/// Root of the snapshot cache (all servers). Used by the app-launch sweep
/// that prunes dirs whose UUID no longer appears in the registry.
nonisolated static func snapshotRootPath() -> String {
let base = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first?.path
?? NSHomeDirectory() + "/Library/Caches"
return base + "/scarf/snapshots"
}
/// Remove the snapshot directory for a server (no-op if absent). Called
/// on `removeServer` and on app-launch for orphaned dirs.
static func pruneSnapshotCache(for contextID: ServerID) {
let dir = snapshotDirPath(for: contextID)
try? FileManager.default.removeItem(atPath: dir)
}
/// Walk the snapshot root and delete any directory whose UUID isn't in
/// `keep`. Called once at app launch so snapshots from servers the user
/// removed while the app was closed don't linger.
static func sweepOrphanSnapshots(keeping keep: Set<ServerID>) {
let root = snapshotRootPath()
guard let entries = try? FileManager.default.contentsOfDirectory(atPath: root) else { return }
for name in entries {
if let id = ServerID(uuidString: name), keep.contains(id) { continue }
try? FileManager.default.removeItem(atPath: root + "/" + name)
}
}
/// Ask OpenSSH to shut down this host's ControlMaster socket, so the TCP
/// session isn't held open after the user removes this server. If no
/// master is currently running, `ssh -O exit` exits non-zero — we ignore
/// the exit code because the desired end state (no master) is reached
/// either way.
func closeControlMaster() {
ensureControlDir()
let args = sshArgs(extra: ["-O", "exit", hostSpec])
_ = try? runLocal(executable: sshBinary, args: args, stdin: nil, timeout: 10)
}
/// Common ssh options used by every invocation. Keep every `-o` flag
/// here so we never drift between calls.
///
/// - `ControlMaster=auto` + `ControlPersist=600` gives us free connection
/// pooling for the bursty stat/cat/cp traffic the services produce.
/// - `StrictHostKeyChecking=accept-new` writes new hosts to
/// `known_hosts` silently the first time but blocks on key mismatch —
/// the UX surfaced by `TransportError.hostKeyMismatch`.
/// - `ServerAliveInterval=30` makes dropped connections surface as a
/// process exit rather than a hang.
/// - `LogLevel=QUIET` suppresses the login banner so ACP's line-delimited
/// JSON stays binary-clean.
nonisolated private func sshArgs(extra: [String] = []) -> [String] {
var args: [String] = [
"-o", "ControlMaster=auto",
"-o", "ControlPath=\(controlDir)/%C",
"-o", "ControlPersist=600",
"-o", "ServerAliveInterval=30",
"-o", "ServerAliveCountMax=3",
"-o", "ConnectTimeout=10",
"-o", "StrictHostKeyChecking=accept-new",
"-o", "LogLevel=QUIET",
"-o", "BatchMode=yes" // Never prompt for passphrases; ssh-agent only.
]
if let port = config.port { args += ["-p", String(port)] }
if let id = config.identityFile, !id.isEmpty {
args += ["-i", id]
}
args += extra
return args
}
/// Ensure the ControlMaster socket directory exists. Called before every
/// ssh invocation. Cheap — `createDirectory(withIntermediateDirectories: true)`
/// is a no-op when present.
nonisolated private func ensureControlDir() {
try? FileManager.default.createDirectory(atPath: controlDir, withIntermediateDirectories: true)
// 0700 so socket files aren't visible to other users on the Mac.
try? FileManager.default.setAttributes([.posixPermissions: 0o700], ofItemAtPath: controlDir)
}
/// Shell-quote a single argument for remote execution. The remote shell
/// receives our argv joined with spaces, so anything containing
/// whitespace/metacharacters must be quoted to survive that flattening.
nonisolated private static func shellQuote(_ s: String) -> String {
if s.isEmpty { return "''" }
// Safe subset: alphanumerics + a few shell-inert characters.
let safe = CharacterSet(charactersIn: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789@%+=:,./-_")
if s.unicodeScalars.allSatisfy({ safe.contains($0) }) { return s }
// Wrap in single quotes; close/reopen around any embedded single quote.
return "'" + s.replacingOccurrences(of: "'", with: "'\\''") + "'"
}
/// Format a path for inclusion in a remote `sh -c` command. **Critical**
/// for any path containing `~/`: bash/zsh do NOT expand `~` inside
/// quotes (single OR double), so a single-quoted `'~/.hermes/foo'` is
/// passed to commands as the literal seven-character string
/// `~/.hermes/foo` and lookups fail. We rewrite the leading `~/` to
/// `$HOME/` (which DOES expand inside double quotes) and emit the path
/// double-quoted so embedded spaces / metacharacters are still safe.
///
/// Why not single-quote: that would make `$HOME` literal too. We
/// specifically need partial-expansion semantics, which is what double
/// quotes give us.
nonisolated private static func remotePathArg(_ path: String) -> String {
var p = path
if p.hasPrefix("~/") {
p = "$HOME/" + p.dropFirst(2)
} else if p == "~" {
p = "$HOME"
}
let escaped = p
.replacingOccurrences(of: "\\", with: "\\\\")
.replacingOccurrences(of: "\"", with: "\\\"")
return "\"\(escaped)\""
}
/// Run a remote shell command. Wraps in `sh -c '<command>'` and uses
/// the standard ssh-after-host placement (no `--` separator — that
/// would be sent to the remote shell as a literal first token, which
/// most shells reject as "command not found"). The `command` is
/// single-quoted via `shellQuote` so ssh's argv-join-by-space doesn't
/// split it across multiple shell tokens on the remote side.
@discardableResult
nonisolated private func runRemoteShell(_ command: String, timeout: TimeInterval? = 60) throws -> ProcessResult {
var args = sshArgs()
args.append(hostSpec)
args.append("sh")
args.append("-c")
args.append(Self.shellQuote(command))
return try runLocal(executable: sshBinary, args: args, stdin: nil, timeout: timeout)
}
// MARK: - Files
func readFile(_ path: String) throws -> Data {
// `cat` is the simplest portable "give me file bytes" command; we
// don't need scp's progress machinery for typical config/memory
// files (<1 MB each).
let result = try runRemoteShell("cat \(Self.remotePathArg(path))")
if result.exitCode != 0 {
let errText = result.stderrString
// Missing file looks like exit 1 + "No such file" — surface as a
// typed fileIO error so callers that treat missing == "empty"
// behave the same as they do locally.
if errText.contains("No such file") {
throw TransportError.fileIO(path: path, underlying: "No such file or directory")
}
throw TransportError.classifySSHFailure(host: config.host, exitCode: result.exitCode, stderr: errText)
}
return result.stdout
}
func writeFile(_ path: String, data: Data) throws {
// Atomic pattern:
// 1. scp to `<path>.scarf.tmp` on the remote
// 2. ssh `mv <tmp> <path>` — atomic on POSIX within the same FS
// Hermes never sees a partial write.
let tmp = path + ".scarf.tmp"
// scp from a local temp file (scp reads from disk, not stdin).
let localTmpURL = FileManager.default.temporaryDirectory.appendingPathComponent(
"scarf-scp-\(UUID().uuidString).tmp"
)
do {
try data.write(to: localTmpURL)
} catch {
throw TransportError.fileIO(path: path, underlying: "local temp write: \(error.localizedDescription)")
}
defer { try? FileManager.default.removeItem(at: localTmpURL) }
ensureControlDir()
var scpArgs: [String] = [
"-o", "ControlMaster=auto",
"-o", "ControlPath=\(controlDir)/%C",
"-o", "ControlPersist=600",
"-o", "StrictHostKeyChecking=accept-new",
"-o", "LogLevel=QUIET",
"-o", "BatchMode=yes"
]
if let port = config.port { scpArgs += ["-P", String(port)] }
if let id = config.identityFile, !id.isEmpty { scpArgs += ["-i", id] }
scpArgs.append(localTmpURL.path)
scpArgs.append("\(hostSpec):\(tmp)")
let scpResult = try runLocal(executable: scpBinary, args: scpArgs, stdin: nil, timeout: 60)
if scpResult.exitCode != 0 {
throw TransportError.classifySSHFailure(host: config.host, exitCode: scpResult.exitCode, stderr: scpResult.stderrString)
}
// Now atomic mv on the remote. Note: scp/sftp DOES expand `~` (it
// goes through the SSH file transfer protocol, not a remote shell),
// so the upload landed at the resolved $HOME path. The mv is a
// shell command and needs the $HOME-rewritten path to find it.
let mvResult = try runRemoteShell("mv \(Self.remotePathArg(tmp)) \(Self.remotePathArg(path))")
if mvResult.exitCode != 0 {
// Best-effort cleanup of the orphan tmp.
_ = try? runRemoteShell("rm -f \(Self.remotePathArg(tmp))")
throw TransportError.classifySSHFailure(host: config.host, exitCode: mvResult.exitCode, stderr: mvResult.stderrString)
}
}
func fileExists(_ path: String) -> Bool {
guard let result = try? runRemoteShell("test -e \(Self.remotePathArg(path))") else {
return false
}
return result.exitCode == 0
}
func stat(_ path: String) -> FileStat? {
// macOS and Linux `stat` differ in flags. `stat -f` is macOS's BSD
// form; `stat -c` is GNU/Linux. We try the GNU form first (typical
// remote target) and fall back to BSD. The format strings use
// double quotes — safe inside our outer single-quoted sh -c.
let linux = try? runRemoteShell(#"stat -c "%s %Y %F" \#(Self.remotePathArg(path))"#)
if let result = linux, result.exitCode == 0 {
return Self.parseStatOutput(result.stdoutString)
}
let bsd = try? runRemoteShell(#"stat -f "%z %m %HT" \#(Self.remotePathArg(path))"#)
if let result = bsd, result.exitCode == 0 {
return Self.parseStatOutput(result.stdoutString)
}
return nil
}
private static func parseStatOutput(_ s: String) -> FileStat? {
// Expected: "<bytes> <unix-epoch-secs> <type>" where <type> is either
// a GNU word ("regular file", "directory") or a BSD word ("Regular
// File", "Directory"). Only the first word of <type> matters for
// isDirectory.
let parts = s.trimmingCharacters(in: .whitespacesAndNewlines).split(separator: " ", maxSplits: 2)
guard parts.count >= 2 else { return nil }
let size = Int64(parts[0]) ?? 0
let mtimeSecs = TimeInterval(parts[1]) ?? 0
let typeStr = parts.count == 3 ? parts[2].lowercased() : ""
let isDir = typeStr.contains("directory")
return FileStat(size: size, mtime: Date(timeIntervalSince1970: mtimeSecs), isDirectory: isDir)
}
func listDirectory(_ path: String) throws -> [String] {
// `ls -A` lists all entries (incl. dotfiles) except `.`/`..`, one per
// line. Sort order matches local FileManager.contentsOfDirectory.
let result = try runRemoteShell("ls -A \(Self.remotePathArg(path))")
if result.exitCode != 0 {
if result.stderrString.contains("No such file") {
throw TransportError.fileIO(path: path, underlying: "No such file or directory")
}
throw TransportError.classifySSHFailure(host: config.host, exitCode: result.exitCode, stderr: result.stderrString)
}
return result.stdoutString
.split(separator: "\n", omittingEmptySubsequences: true)
.map(String.init)
}
func createDirectory(_ path: String) throws {
let result = try runRemoteShell("mkdir -p \(Self.remotePathArg(path))")
if result.exitCode != 0 {
throw TransportError.classifySSHFailure(host: config.host, exitCode: result.exitCode, stderr: result.stderrString)
}
}
func removeFile(_ path: String) throws {
let result = try runRemoteShell("rm -f \(Self.remotePathArg(path))")
if result.exitCode != 0 {
throw TransportError.classifySSHFailure(host: config.host, exitCode: result.exitCode, stderr: result.stderrString)
}
}
// MARK: - Processes
func runProcess(executable: String, args: [String], stdin: Data?, timeout: TimeInterval?) throws -> ProcessResult {
// Wrap in `sh -c '<exe> <arg> <arg>'` with `~/`-rewritten paths so
// home-relative args expand on the remote. The executable might be
// `~/.local/bin/hermes` or just `hermes`; either survives.
let cmd = ([executable] + args).map { Self.remotePathArg($0) }.joined(separator: " ")
var sshArgv = sshArgs()
sshArgv.append(hostSpec)
sshArgv.append("sh")
sshArgv.append("-c")
sshArgv.append(Self.shellQuote(cmd))
return try runLocal(executable: sshBinary, args: sshArgv, stdin: stdin, timeout: timeout)
}
func makeProcess(executable: String, args: [String]) -> Process {
ensureControlDir()
// `-T` disables pty allocation — critical for binary-clean stdin/stdout
// (ACP JSON-RPC, log tail bytes). Same sh -c wrapping as runProcess
// so home-relative paths in `executable`/`args` actually expand.
let cmd = ([executable] + args).map { Self.remotePathArg($0) }.joined(separator: " ")
var sshArgv = sshArgs()
sshArgv.insert("-T", at: 0)
sshArgv.append(hostSpec)
sshArgv.append("sh")
sshArgv.append("-c")
sshArgv.append(Self.shellQuote(cmd))
let proc = Process()
proc.executableURL = URL(fileURLWithPath: sshBinary)
proc.arguments = sshArgv
proc.environment = Self.sshSubprocessEnvironment()
return proc
}
/// Environment for an ssh/scp subprocess: process env merged with
/// SSH_AUTH_SOCK / SSH_AGENT_PID harvested from the user's login shell.
/// Without this, GUI-launched Scarf can't reach 1Password / Secretive /
/// `ssh-add`'d keys that the user's terminal sees fine.
nonisolated private static func sshSubprocessEnvironment() -> [String: String] {
var env = ProcessInfo.processInfo.environment
let shellEnv = HermesFileService.enrichedEnvironment()
for key in ["SSH_AUTH_SOCK", "SSH_AGENT_PID"] {
if env[key] == nil, let value = shellEnv[key], !value.isEmpty {
env[key] = value
}
}
return env
}
// MARK: - SQLite snapshot
func snapshotSQLite(remotePath: String) throws -> URL {
try? FileManager.default.createDirectory(atPath: snapshotDir, withIntermediateDirectories: true)
let localPath = snapshotDir + "/state.db"
// `.backup` is WAL-safe: sqlite takes a consistent snapshot without
// blocking writers. A plain `cp` of a WAL-mode DB could corrupt.
let remoteTmp = "/tmp/scarf-snapshot-\(UUID().uuidString).db"
// sqlite3's `.backup` is a dot-command, not a CLI arg. The whole
// dot-command must be one shell argument (double-quoted) so sqlite3
// receives it as a single command; the backup path inside it is
// single-quoted so sqlite3 parses it correctly. The DB path is a
// separate shell argument and goes through `remotePathArg`
// (double-quoted, $HOME-aware) so `~/.hermes/state.db` actually
// resolves on the remote.
//
// The second sqlite3 invocation flips the snapshot out of WAL mode
// so the scp'd file is self-contained: `.backup` preserves the
// source's journal_mode in the destination header, so without this
// step the client would need the `-wal`/`-shm` sidecars too, and
// every read would fail with "unable to open database file".
//
// Final shell command on the remote:
// sqlite3 "$HOME/.hermes/state.db" ".backup '/tmp/scarf-snapshot-XYZ.db'" \
// && sqlite3 '/tmp/scarf-snapshot-XYZ.db' "PRAGMA journal_mode=DELETE;"
let backupScript = #"sqlite3 \#(Self.remotePathArg(remotePath)) ".backup '\#(remoteTmp)'" && sqlite3 '\#(remoteTmp)' "PRAGMA journal_mode=DELETE;" > /dev/null"#
let backup = try runRemoteShell(backupScript)
if backup.exitCode != 0 {
throw TransportError.classifySSHFailure(host: config.host, exitCode: backup.exitCode, stderr: backup.stderrString)
}
// scp the backup down. scp/sftp expands `~` natively (it goes
// through the SSH file-transfer protocol, not a remote shell), so
// remoteTmp's `/tmp/...` absolute path round-trips as-is.
ensureControlDir()
var scpArgs: [String] = [
"-o", "ControlMaster=auto",
"-o", "ControlPath=\(controlDir)/%C",
"-o", "ControlPersist=600",
"-o", "StrictHostKeyChecking=accept-new",
"-o", "LogLevel=QUIET",
"-o", "BatchMode=yes"
]
if let port = config.port { scpArgs += ["-P", String(port)] }
if let id = config.identityFile, !id.isEmpty { scpArgs += ["-i", id] }
scpArgs.append("\(hostSpec):\(remoteTmp)")
scpArgs.append(localPath)
let pull = try runLocal(executable: scpBinary, args: scpArgs, stdin: nil, timeout: 120)
// Regardless of pull outcome, try to clean up the remote tmp.
_ = try? runRemoteShell("rm -f \(Self.remotePathArg(remoteTmp))")
if pull.exitCode != 0 {
throw TransportError.classifySSHFailure(host: config.host, exitCode: pull.exitCode, stderr: pull.stderrString)
}
return URL(fileURLWithPath: localPath)
}
// MARK: - Watching
func watchPaths(_ paths: [String]) -> AsyncStream<WatchEvent> {
// Polling: call `stat -c %Y` on all paths every 3s and yield a single
// `.anyChanged` when any mtime changed vs. the prior tick. ControlMaster
// makes each stat ~5ms so the cost is bounded.
AsyncStream { continuation in
let task = Task.detached { [self] in
var lastSignature: String = ""
while !Task.isCancelled {
// Build one shell command that stats all paths in one
// ssh round-trip. Missing paths print "0" which still
// participates correctly in change detection. Paths
// get the `~`→`$HOME` rewrite via remotePathArg.
let argList = paths.map { Self.remotePathArg($0) }.joined(separator: " ")
let cmd = "for p in \(argList); do stat -c %Y \"$p\" 2>/dev/null || stat -f %m \"$p\" 2>/dev/null || echo 0; done"
do {
let result = try runRemoteShell(cmd, timeout: 30)
let signature = result.stdoutString.trimmingCharacters(in: .whitespacesAndNewlines)
if !signature.isEmpty && signature != lastSignature {
if !lastSignature.isEmpty {
continuation.yield(.anyChanged)
}
lastSignature = signature
}
} catch {
// Transient failure (connection drop) — skip this tick.
Self.logger.debug("watchPaths poll failed: \(String(describing: error))")
}
try? await Task.sleep(nanoseconds: 3_000_000_000)
}
}
continuation.onTermination = { _ in task.cancel() }
}
}
// MARK: - Private helpers
/// Spawn a local process (ssh/scp/etc.) and collect its result. Mirrors
/// `LocalTransport.runProcess` — duplicated rather than shared because
/// SSH-specific code paths live on this type and we want all Process
/// lifecycle in one place per transport.
nonisolated private func runLocal(executable: String, args: [String], stdin: Data?, timeout: TimeInterval?) throws -> ProcessResult {
ensureControlDir()
let proc = Process()
proc.executableURL = URL(fileURLWithPath: executable)
proc.arguments = args
// Inherit the user's shell environment so ssh can reach the
// ssh-agent socket. GUI-launched apps don't see SSH_AUTH_SOCK by
// default — without this, terminal ssh works (because the user's
// shell exports it) but Scarf-launched ssh fails auth with exit 255.
proc.environment = Self.sshSubprocessEnvironment()
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
let stdinPipe = Pipe()
proc.standardOutput = stdoutPipe
proc.standardError = stderrPipe
if stdin != nil { proc.standardInput = stdinPipe }
do {
try proc.run()
} catch {
throw TransportError.other(message: "Failed to launch \(executable): \(error.localizedDescription)")
}
if let stdin {
try? stdinPipe.fileHandleForWriting.write(contentsOf: stdin)
try? stdinPipe.fileHandleForWriting.close()
}
if let timeout {
let deadline = Date().addingTimeInterval(timeout)
while proc.isRunning && Date() < deadline {
Thread.sleep(forTimeInterval: 0.1)
}
if proc.isRunning {
proc.terminate()
let partial = (try? stdoutPipe.fileHandleForReading.readToEnd()) ?? Data()
try? stdoutPipe.fileHandleForReading.close()
try? stderrPipe.fileHandleForReading.close()
throw TransportError.timeout(seconds: timeout, partialStdout: partial)
}
} else {
proc.waitUntilExit()
}
let out = (try? stdoutPipe.fileHandleForReading.readToEnd()) ?? Data()
let err = (try? stderrPipe.fileHandleForReading.readToEnd()) ?? Data()
try? stdoutPipe.fileHandleForReading.close()
try? stderrPipe.fileHandleForReading.close()
try? stdinPipe.fileHandleForWriting.close()
return ProcessResult(exitCode: proc.terminationStatus, stdout: out, stderr: err)
}
}
scarf/scarf/Core/Transport/ServerTransport.swift
+102
View File
@@ -0,0 +1,102 @@
import Foundation
/// Unified I/O surface shared by local and remote Hermes installations.
///
/// **Design rationale.** The services that read Hermes state (`~/.hermes/…`)
/// and spawn the `hermes` CLI all boil down to a handful of primitives:
/// read/write/list files, stat file attributes, run a process to completion,
/// spawn a long-running stdio process for streaming, take a consistent DB
/// snapshot, observe file changes. `ServerTransport` exposes exactly those
/// primitives so the same service code works against either a local
/// filesystem or a remote host reached over SSH.
///
/// The primitives are deliberately **synchronous where possible** (file I/O,
/// process `run` + wait) so services don't need to become `async` end-to-end.
/// The two naturally-streaming cases — log tail and ACP stdio — use
/// `makeProcess` which returns a configured `Process`; services own the
/// stdio pipes and lifecycle exactly as they do today.
protocol ServerTransport: Sendable {
/// Identifies the context this transport serves. Used for cache
/// namespacing (e.g. per-server SQLite snapshot directories).
nonisolated var contextID: ServerID { get }
/// `true` if this transport talks to a remote host over SSH.
nonisolated var isRemote: Bool { get }
// MARK: - Files
nonisolated func readFile(_ path: String) throws -> Data
/// Atomic write: the file at `path` is either the previous contents or
/// the new contents, never a partial write. Preserves `0600` mode for
/// paths that match `.env` conventions so secrets stay owner-only.
nonisolated func writeFile(_ path: String, data: Data) throws
nonisolated func fileExists(_ path: String) -> Bool
nonisolated func stat(_ path: String) -> FileStat?
nonisolated func listDirectory(_ path: String) throws -> [String]
/// Create directories including intermediates. No-op if already present.
nonisolated func createDirectory(_ path: String) throws
/// Delete a file. No-op if absent.
nonisolated func removeFile(_ path: String) throws
// MARK: - Processes
/// Run a process to completion and capture its stdout/stderr. For remote
/// transports this actually invokes `ssh host -- executable args…` under
/// the hood; for local it spawns `executable` directly.
nonisolated func runProcess(
executable: String,
args: [String],
stdin: Data?,
timeout: TimeInterval?
) throws -> ProcessResult
/// Return a `Process` configured for the target — already pointed at the
/// right executable with the right arguments, but **not yet started**.
/// Callers attach their own `Pipe`s and call `run()`. Used by ACPClient
/// (JSON-RPC over stdio) and by `HermesLogService`'s streaming tail.
///
/// Local: `executable` + `args` verbatim.
/// Remote: `/usr/bin/ssh` + connection flags + `[host, "--", executable, args…]`.
nonisolated func makeProcess(executable: String, args: [String]) -> Process
// MARK: - SQLite
/// Return a local filesystem URL pointing at a fresh, consistent copy of
/// the SQLite database at `remotePath`. For local transports this is
/// just the remote path unchanged. For SSH transports this performs
/// `sqlite3 .backup` on the remote side and scp's the backup into
/// `~/Library/Caches/scarf/<serverID>/state.db`, returning that URL.
nonisolated func snapshotSQLite(remotePath: String) throws -> URL
// MARK: - Watching
/// Observe changes to a set of paths and yield events when any of them
/// change. Local: FSEvents. Remote: polls `stat` mtime every 3s.
nonisolated func watchPaths(_ paths: [String]) -> AsyncStream<WatchEvent>
}
/// Stat-style file metadata. `nil` (return value) means the file does not
/// exist or couldn't be queried.
struct FileStat: Sendable, Hashable {
let size: Int64
let mtime: Date
let isDirectory: Bool
}
/// Result of a one-shot process invocation.
struct ProcessResult: Sendable {
let exitCode: Int32
let stdout: Data
let stderr: Data
nonisolated var stdoutString: String { String(data: stdout, encoding: .utf8) ?? "" }
nonisolated var stderrString: String { String(data: stderr, encoding: .utf8) ?? "" }
}
enum WatchEvent: Sendable {
/// Any path in the watched set changed; implementations may coalesce
/// rapid changes into one event. Consumers should treat this as "refresh
/// whatever you were displaying" rather than expecting fine-grained
/// per-path signals.
case anyChanged
}
scarf/scarf/Core/Transport/TransportErrors.swift
+86
View File
@@ -0,0 +1,86 @@
import Foundation
/// Typed errors surfaced by `ServerTransport` implementations. The UI
/// distinguishes these so user-visible messages can be specific
/// ("authentication failed" vs. "command failed") without having to grep
/// stderr strings.
enum TransportError: LocalizedError {
/// `ssh`/`scp` could not reach the host or hit a protocol-level issue
/// (name resolution, connection refused, route error).
case hostUnreachable(host: String, stderr: String)
/// Remote rejected our credentials. Typically means no ssh-agent key is
/// loaded, or the loaded keys don't match any `authorized_keys` entry.
case authenticationFailed(host: String, stderr: String)
/// Remote `~/.ssh/known_hosts` fingerprint no longer matches. Blocking —
/// we never auto-accept on mismatch.
case hostKeyMismatch(host: String, stderr: String)
/// The command ran on the remote but exited non-zero.
case commandFailed(exitCode: Int32, stderr: String)
/// Local filesystem operation failed (read/write/stat) with the OS error
/// message attached.
case fileIO(path: String, underlying: String)
/// Timed out waiting for a process to finish. `partialStdout` carries
/// whatever output was captured before the timer fired.
case timeout(seconds: TimeInterval, partialStdout: Data)
/// Something we didn't plan for. Fall-through bucket with enough context
/// for a bug report.
case other(message: String)
var errorDescription: String? {
switch self {
case .hostUnreachable(let host, _):
return "Can't reach \(host). Check the hostname, network, and SSH config."
case .authenticationFailed(let host, _):
return "SSH authentication to \(host) failed. Ensure your key is loaded in ssh-agent."
case .hostKeyMismatch(let host, _):
return "Host key for \(host) has changed. Inspect ~/.ssh/known_hosts before continuing."
case .commandFailed(let code, let stderr):
// Trim stderr to a single line for the summary; full text is in
// the associated value for disclosure views.
let firstLine = stderr.split(separator: "\n").first.map(String.init) ?? ""
return "Remote command exited \(code). \(firstLine)"
case .fileIO(let path, let msg):
return "File I/O failed at \(path): \(msg)"
case .timeout(let secs, _):
return "Command timed out after \(Int(secs))s."
case .other(let msg):
return msg
}
}
/// Full stderr (if any) for display in a disclosure view. Empty string
/// when there's no additional detail worth showing.
var diagnosticStderr: String {
switch self {
case .hostUnreachable(_, let s),
.authenticationFailed(_, let s),
.hostKeyMismatch(_, let s),
.commandFailed(_, let s):
return s
default:
return ""
}
}
/// Heuristic classifier: convert the ssh/scp stderr of a failed command
/// into a specific `TransportError`. Used by `SSHTransport` after a
/// non-zero exit. Defaults to `.commandFailed` when no known marker
/// matches.
static func classifySSHFailure(host: String, exitCode: Int32, stderr: String) -> TransportError {
let s = stderr.lowercased()
if s.contains("permission denied") || s.contains("authentication failed")
|| s.contains("publickey") && s.contains("denied") {
return .authenticationFailed(host: host, stderr: stderr)
}
if s.contains("host key verification failed")
|| s.contains("remote host identification has changed") {
return .hostKeyMismatch(host: host, stderr: stderr)
}
if s.contains("no route to host") || s.contains("connection refused")
|| s.contains("connection timed out") || s.contains("could not resolve hostname")
|| s.contains("connection closed by") && s.contains("port 22") {
return .hostUnreachable(host: host, stderr: stderr)
}
return .commandFailed(exitCode: exitCode, stderr: stderr)
}
}
scarf/scarf/Features/Activity/ViewModels/ActivityViewModel.swift
+14 -2
View File
@@ -2,7 +2,14 @@ import Foundation
@Observable
final class ActivityViewModel {
private let dataService = HermesDataService()
let context: ServerContext
private let dataService: HermesDataService
init(context: ServerContext = .local) {
self.context = context
self.dataService = HermesDataService(context: context)
}
var toolMessages: [HermesMessage] = []
var filterKind: ToolKind?
@@ -45,7 +52,12 @@ final class ActivityViewModel {
func load() async {
isLoading = true
let opened = await dataService.open()
// refresh() = close + reopen, which forces a fresh snapshot pull on
// remote contexts. Using open() here would short-circuit after the
// first load and show stale data for the view's lifetime. The DB
// stays open after load() returns so selectEntry() can read tool
// results without re-opening — cleanup() closes on disappear.
let opened = await dataService.refresh()
guard opened else {
isLoading = false
return
scarf/scarf/Features/Activity/Views/ActivityView.swift
+10 -1
View File
@@ -1,8 +1,14 @@
import SwiftUI
struct ActivityView: View {
@State private var viewModel = ActivityViewModel()
@State private var viewModel: ActivityViewModel
@Environment(AppCoordinator.self) private var coordinator
@Environment(HermesFileWatcher.self) private var fileWatcher
init(context: ServerContext) {
_viewModel = State(initialValue: ActivityViewModel(context: context))
}
var body: some View {
VStack(spacing: 0) {
@@ -17,6 +23,9 @@ struct ActivityView: View {
}
.navigationTitle("Activity")
.task { await viewModel.load() }
.onChange(of: fileWatcher.lastChangeDate) {
Task { await viewModel.load() }
}
.onDisappear { Task { await viewModel.cleanup() } }
}
scarf/scarf/Features/Chat/ViewModels/ChatViewModel.swift
+89 -26
View File
@@ -6,8 +6,29 @@ import os
@Observable
final class ChatViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "ChatViewModel")
private let dataService = HermesDataService()
private let fileService = HermesFileService()
let context: ServerContext
private let dataService: HermesDataService
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.dataService = HermesDataService(context: context)
self.fileService = HermesFileService(context: context)
self.richChatViewModel = RichChatViewModel(context: context)
// Probe hermes binary existence once off-main, then cache. Doing
// this synchronously inside `hermesBinaryExists`'s getter would
// block main on every chat-body re-evaluation — for a remote
// context that's a SSH `test -e` round-trip on every streaming
// chunk, which manifests as the chat screen flashing or going
// blank during prompts.
Task.detached(priority: .userInitiated) { [context] in
let exists = context.fileExists(context.paths.hermesBinary)
await MainActor.run { [weak self] in
self?.hermesBinaryExists = exists
}
}
}
var recentSessions: [HermesSession] = []
var sessionPreviews: [String: String] = [:]
@@ -17,7 +38,7 @@ final class ChatViewModel {
var ttsEnabled = false
var isRecording = false
var displayMode: ChatDisplayMode = .richChat
let richChatViewModel = RichChatViewModel()
let richChatViewModel: RichChatViewModel
private var coordinator: Coordinator?
// ACP state
@@ -43,14 +64,17 @@ final class ChatViewModel {
private static let reconnectBaseDelay: UInt64 = 1_000_000_000 // 1 second
private static let maxReconnectDelay: UInt64 = 16_000_000_000 // 16 seconds
var hermesBinaryExists: Bool {
FileManager.default.fileExists(atPath: HermesPaths.hermesBinary)
}
/// Cached result of probing for `hermes` on the target server. Updated
/// once at init by a detached task; defaults to `true` so the chat
/// view doesn't briefly flash "Hermes not found" while the async
/// probe runs. Set to `false` only after the probe confirms the
/// binary really isn't there.
var hermesBinaryExists: Bool = true
/// Re-checks env + `~/.hermes/.env` for AI-provider credentials and
/// updates `missingCredentials`. Cheap — safe to call from view `.task`.
func refreshCredentialPreflight() {
missingCredentials = !HermesFileService.hasAnyAICredential()
missingCredentials = !fileService.hasAnyAICredential()
}
/// Clears the error/hint/details triplet so future failures overwrite
@@ -114,7 +138,14 @@ final class ChatViewModel {
// Find most recent session and resume via ACP
Task { @MainActor in
let opened = await dataService.open()
guard opened else { return }
if !opened {
acpError = context.isRemote
? "Couldn't reach \(context.displayName). Check the SSH connection and try again."
: "Couldn't open the Hermes state database."
acpErrorHint = nil
acpErrorDetails = nil
return
}
let sessionId = await dataService.fetchMostRecentlyActiveSessionId()
await dataService.close()
if let sessionId {
@@ -143,23 +174,22 @@ final class ChatViewModel {
}
}
/// Start ACP for the current or most recent session, then send the queued prompt.
/// Start ACP for the current session (or create a new one), then send the
/// queued prompt. Typing into a blank Chat screen ALWAYS creates a new
/// session — the "Continue from Last Session" button is the explicit path
/// for resuming. The previous behavior (falling back to the most recently
/// active session in the DB) would pick up cron/background sessions the
/// user never interacted with; those can be garbage-collected by Hermes
/// between the DB read and ACP `session/load`, producing a silent prompt
/// failure with no UI feedback.
private func autoStartACPAndSend(text: String) {
// Show the user message immediately
richChatViewModel.addUserMessage(text: text)
Task { @MainActor in
// Find a session to resume: prefer current sessionId, then most recent
var sessionToResume = richChatViewModel.sessionId
if sessionToResume == nil {
let opened = await dataService.open()
if opened {
sessionToResume = await dataService.fetchMostRecentlyActiveSessionId()
await dataService.close()
}
}
let sessionToResume = richChatViewModel.sessionId
let client = ACPClient()
let client = ACPClient(context: context)
self.acpClient = client
do {
@@ -168,7 +198,7 @@ final class ChatViewModel {
startACPEventLoop(client: client)
startHealthMonitor(client: client)
let cwd = NSHomeDirectory()
let cwd = await context.resolvedUserHome()
hasActiveProcess = true
@@ -247,7 +277,7 @@ final class ChatViewModel {
clearACPErrorState()
acpStatus = "Starting..."
let client = ACPClient()
let client = ACPClient(context: context)
self.acpClient = client
Task { @MainActor in
@@ -258,7 +288,7 @@ final class ChatViewModel {
startACPEventLoop(client: client)
startHealthMonitor(client: client)
let cwd = NSHomeDirectory()
let cwd = await context.resolvedUserHome()
// Mark active BEFORE setting session ID so .task(id:) sees isACPMode=true
// and doesn't wipe messages with a DB refresh
@@ -385,11 +415,11 @@ final class ChatViewModel {
guard !Task.isCancelled else { return }
}
let client = ACPClient()
let client = ACPClient(context: context)
do {
try await client.start()
let cwd = NSHomeDirectory()
let cwd = await context.resolvedUserHome()
let resolvedSessionId: String
// Try resumeSession first (designed for reconnection), then loadSession.
@@ -542,11 +572,44 @@ final class ChatViewModel {
var env = ProcessInfo.processInfo.environment
env["TERM"] = "xterm-256color"
env["COLORTERM"] = "truecolor"
// Inherit ssh-agent socket for remote so password-less auth works.
if context.isRemote {
let shellEnv = HermesFileService.enrichedEnvironment()
for key in ["SSH_AUTH_SOCK", "SSH_AGENT_PID"] {
if env[key] == nil, let v = shellEnv[key], !v.isEmpty {
env[key] = v
}
}
}
let envArray = env.map { "\($0.key)=\($0.value)" }
// For remote: wrap the invocation in `ssh -t host -- hermes <args>`
// so the embedded terminal opens a pty against the remote and the
// hermes TUI gets the bytes it expects. `-t` requests a pty (the
// SwiftTerm view is one).
let exe: String
let argv: [String]
if context.isRemote, case .ssh(let cfg) = context.kind {
let host = cfg.user.map { "\($0)@\(cfg.host)" } ?? cfg.host
exe = "/usr/bin/ssh"
var sshArgs: [String] = ["-t"]
if let port = cfg.port { sshArgs += ["-p", String(port)] }
if let id = cfg.identityFile, !id.isEmpty { sshArgs += ["-i", id] }
sshArgs += ["-o", "StrictHostKeyChecking=accept-new"]
sshArgs += ["-o", "BatchMode=yes"]
sshArgs.append(host)
sshArgs.append("--")
sshArgs.append(context.paths.hermesBinary)
sshArgs.append(contentsOf: arguments)
argv = sshArgs
} else {
exe = context.paths.hermesBinary
argv = arguments
}
terminal.startProcess(
executable: HermesPaths.hermesBinary,
args: arguments,
executable: exe,
args: argv,
environment: envArray,
execName: nil
)
scarf/scarf/Features/Chat/ViewModels/RichChatViewModel.swift
+54 -3
View File
@@ -25,7 +25,14 @@ struct MessageGroup: Identifiable {
@Observable
final class RichChatViewModel {
private let dataService = HermesDataService()
let context: ServerContext
private let dataService: HermesDataService
init(context: ServerContext = .local) {
self.context = context
self.dataService = HermesDataService(context: context)
}
var messages: [HermesMessage] = []
var currentSession: HermesSession?
@@ -231,7 +238,44 @@ final class RichChatViewModel {
}
private func handlePromptComplete(response: ACPPromptResult) {
// Detect a failed prompt that produced no assistant output — e.g.
// Hermes returning `stopReason: "refusal"` when the session was
// silently garbage-collected, or `"error"` when the ACP call itself
// threw. Without surfacing this, the user sees their prompt sitting
// alone under "Agent working…" that never completes with any text.
let hadAssistantOutput = streamingAssistantText.isEmpty == false
|| messages.last?.isAssistant == true
finalizeStreamingMessage()
if !hadAssistantOutput, response.stopReason != "end_turn" {
let reason: String
switch response.stopReason {
case "refusal":
reason = "The agent refused to respond (the session may have been cleared on the server). Try starting a new session from the Session menu."
case "error":
reason = "The prompt failed — check the ACP error banner above for details."
case "max_tokens":
reason = "The response was cut off before the agent could produce any output (max_tokens reached before any tokens were emitted)."
default:
reason = "The prompt ended without a response (stopReason: \(response.stopReason))."
}
let id = nextLocalId
nextLocalId -= 1
messages.append(HermesMessage(
id: id,
sessionId: sessionId ?? "",
role: "system",
content: reason,
toolCallId: nil,
toolCalls: [],
toolName: nil,
timestamp: Date(),
tokenCount: nil,
finishReason: response.stopReason,
reasoning: nil
))
}
// Accumulate token usage from this prompt
acpInputTokens += response.inputTokens
acpOutputTokens += response.outputTokens
@@ -391,7 +435,11 @@ final class RichChatViewModel {
/// (e.g., CLI session) with the current ACP session.
func loadSessionHistory(sessionId: String, acpSessionId: String? = nil) async {
self.sessionId = sessionId
let opened = await dataService.open()
// Force a fresh snapshot pull on remote contexts. An earlier open()
// would have cached a stale copy — on resume we need whatever
// Hermes has actually persisted since then, or the resumed session
// will show only history up to the moment the snapshot was taken.
let opened = await dataService.refresh()
guard opened else { return }
var allMessages = await dataService.fetchMessages(sessionId: sessionId)
@@ -434,7 +482,10 @@ final class RichChatViewModel {
}
func refreshMessages() async {
let opened = await dataService.open()
// Polling tick (terminal mode): pull a fresh snapshot so remote
// reflects Hermes writes since the last tick. On local this is a
// cheap reopen of the live DB.
let opened = await dataService.refresh()
guard opened else { return }
if sessionId == nil {
scarf/scarf/Features/Chat/Views/ChatView.swift
+3 -3
View File
@@ -304,7 +304,7 @@ struct ChatView: View {
ContentUnavailableView(
"Hermes Not Found",
systemImage: "terminal",
description: Text("Expected at \(HermesPaths.hermesBinary)")
description: Text("Expected at \(viewModel.context.paths.hermesBinary)")
)
.frame(maxWidth: .infinity, maxHeight: .infinity)
}
@@ -331,7 +331,7 @@ struct ChatView: View {
ContentUnavailableView(
"Hermes Not Found",
systemImage: "terminal",
description: Text("Expected at \(HermesPaths.hermesBinary)")
description: Text("Expected at \(viewModel.context.paths.hermesBinary)")
)
.frame(maxWidth: .infinity, maxHeight: .infinity)
}
@@ -359,7 +359,7 @@ struct ChatView: View {
// MARK: - Permission Approval View
extension RichChatViewModel.PendingPermission: @retroactive Identifiable {
extension RichChatViewModel.PendingPermission: Identifiable {
var id: Int { requestId }
}
scarf/scarf/Features/Chat/Views/RichChatMessageList.swift
+59 -48
View File
@@ -6,19 +6,31 @@ struct RichChatMessageList: View {
/// External trigger to force a scroll-to-bottom (e.g., from "Return to Active Session").
var scrollTrigger: UUID = UUID()
/// Track the last group's assistant content length to detect streaming updates.
private var scrollAnchor: String {
if isWorking { return "typing-indicator" }
if let last = groups.last { return "group-\(last.id)" }
return "scroll-top"
}
/// Why `.defaultScrollAnchor(.bottom)` *alone* and no `proxy.scrollTo`.
///
/// `.defaultScrollAnchor(.bottom)` tells SwiftUI to pin the viewport to
/// the bottom of the content automatically — as messages stream in or
/// new turns arrive, the scroll position tracks the bottom edge.
///
/// We used to also call `proxy.scrollTo(lastID, anchor: .bottom)` from
/// six different `onChange` handlers during streaming. The two
/// mechanisms fought each other: the ScrollViewReader can resolve an ID
/// to a position **before** LazyVStack has finished laying out that
/// row, so `scrollTo` would land past the actual content — the
/// "viewport showing whitespace, chat is above" symptom. Removing the
/// manual scroll and trusting `defaultScrollAnchor` eliminates the race.
///
/// The only remaining explicit scroll is `scrollTrigger` for the "Return
/// to Active Session" button; that fires rarely, after layout has
/// settled, so the overshoot doesn't happen.
var body: some View {
ScrollViewReader { proxy in
ScrollView {
LazyVStack(alignment: .leading, spacing: 16) {
Spacer(minLength: 0)
.id("scroll-top")
if groups.isEmpty && !isWorking {
emptyState
}
ForEach(groups) { group in
MessageGroupView(group: group)
.id("group-\(group.id)")
@@ -32,50 +44,39 @@ struct RichChatMessageList: View {
.padding()
}
.defaultScrollAnchor(.bottom)
// Scroll to bottom when view first appears with content
.onAppear {
if !groups.isEmpty {
DispatchQueue.main.async {
scrollToBottom(proxy: proxy, animated: false)
}
}
}
// Scroll on new groups
.onChange(of: groups.count) {
scrollToBottom(proxy: proxy)
}
// Scroll when agent starts/stops working
.onChange(of: isWorking) {
scrollToBottom(proxy: proxy)
}
// Scroll on streaming content updates (group content changes)
.onChange(of: scrollAnchor) {
scrollToBottom(proxy: proxy)
}
// Scroll on last message content change (streaming text)
.onChange(of: groups.last?.assistantMessages.last?.content ?? "") {
scrollToBottom(proxy: proxy, animated: false)
}
// Scroll on tool call count change
.onChange(of: groups.last?.toolCallCount ?? 0) {
scrollToBottom(proxy: proxy)
}
// Scroll on external trigger (e.g., "Return to Active Session" button)
.onChange(of: scrollTrigger) {
scrollToBottom(proxy: proxy)
let target = lastAnchorID
withAnimation(.easeOut(duration: 0.15)) {
proxy.scrollTo(target, anchor: .bottom)
}
}
}
}
private func scrollToBottom(proxy: ScrollViewProxy, animated: Bool = true) {
let target = scrollAnchor
if animated {
withAnimation(.easeOut(duration: 0.15)) {
proxy.scrollTo(target, anchor: .bottom)
}
} else {
proxy.scrollTo(target, anchor: .bottom)
/// Anchor ID used by the explicit scrollTrigger path. Prefers the typing
/// indicator when visible (so we scroll to the very bottom of the
/// current turn), otherwise the last group.
private var lastAnchorID: String {
if isWorking { return "typing-indicator" }
if let last = groups.last { return "group-\(last.id)" }
return "group-0"
}
private var emptyState: some View {
VStack(spacing: 12) {
Image(systemName: "bubble.left.and.text.bubble.right")
.font(.system(size: 40))
.foregroundStyle(.tertiary)
Text("Chat Messages")
.font(.title3)
.fontWeight(.semibold)
Text("Messages will appear here as the conversation progresses.")
.font(.callout)
.foregroundStyle(.secondary)
.multilineTextAlignment(.center)
}
.frame(maxWidth: .infinity)
.padding(.vertical, 80)
}
private var typingIndicator: some View {
@@ -108,7 +109,17 @@ struct MessageGroupView: View {
RichMessageBubble(message: user, toolResults: [:])
}
ForEach(group.assistantMessages.filter(\.isAssistant)) { message in
// Identify by array offset rather than `message.id`. The
// streaming assistant message starts with id=0 and gets a
// new negative id when finalized — using `\.id` would make
// SwiftUI think the bubble disappeared and a new one appeared
// (destroying + recreating the view, which manifests as the
// chat flashing or jumping right when the prompt completes).
// Within a single group the assistant messages are
// append-only, so offset is a stable identity for the
// group's lifetime.
let assistantMessages = group.assistantMessages.filter(\.isAssistant)
ForEach(Array(assistantMessages.enumerated()), id: \.offset) { _, message in
RichMessageBubble(message: message, toolResults: group.toolResults)
}
scarf/scarf/Features/Chat/Views/RichChatView.swift
+9 -14
View File
@@ -21,20 +21,15 @@ struct RichChatView: View {
)
Divider()
if richChat.messageGroups.isEmpty && !richChat.isAgentWorking {
ContentUnavailableView(
"Chat Messages",
systemImage: "bubble.left.and.text.bubble.right",
description: Text("Messages will appear here as the conversation progresses.")
)
.frame(maxWidth: .infinity, maxHeight: .infinity)
} else {
RichChatMessageList(
groups: richChat.messageGroups,
isWorking: richChat.isAgentWorking,
scrollTrigger: richChat.scrollTrigger
)
}
// Always mount RichChatMessageList; empty state lives inside it.
// Swapping between a ContentUnavailableView and the ScrollView
// hierarchy on first message caused a full view tree rebuild,
// which manifests as a white flash.
RichChatMessageList(
groups: richChat.messageGroups,
isWorking: richChat.isAgentWorking,
scrollTrigger: richChat.scrollTrigger
)
Divider()
RichChatInputBar(
scarf/scarf/Features/Common/LoadingOverlay.swift
+74
View File
@@ -0,0 +1,74 @@
import SwiftUI
/// Translucent loading overlay used by feature views while their VM's
/// `load()` runs in the background. Shows a centered ProgressView with
/// optional label; the underlying content stays visible (just dimmed)
/// when it's already populated, or the overlay fully covers an empty
/// section so the user sees activity instead of "nothing here yet".
///
/// Usage:
/// ```swift
/// SomeContent()
/// .loadingOverlay(viewModel.isLoading, label: "Loading credentials…", isEmpty: viewModel.pools.isEmpty)
/// ```
///
/// The `isEmpty` flag controls whether the overlay covers the full view
/// (when there's no stale content to show under it) or just dims it
/// (when refreshing existing data).
struct LoadingOverlay: ViewModifier {
let isLoading: Bool
let label: String
let isEmpty: Bool
func body(content: Content) -> some View {
content
.overlay {
if isLoading {
if isEmpty {
// Full cover: empty state. User has no data to look at,
// so own the whole pane with the spinner.
VStack(spacing: 12) {
ProgressView()
.controlSize(.large)
Text(label)
.font(.callout)
.foregroundStyle(.secondary)
}
.frame(maxWidth: .infinity, maxHeight: .infinity)
.background(Color(NSColor.windowBackgroundColor))
} else {
// Stale-content refresh: top-trailing pill so the
// user sees data is being refreshed without losing
// their place.
VStack {
HStack {
Spacer()
HStack(spacing: 6) {
ProgressView()
.controlSize(.small)
Text(label)
.font(.caption)
.foregroundStyle(.secondary)
}
.padding(.horizontal, 10)
.padding(.vertical, 5)
.background(.thinMaterial, in: Capsule())
.padding(8)
}
Spacer()
}
}
}
}
}
}
extension View {
/// Show a loading indicator while `isLoading` is true. If `isEmpty` is
/// also true, the indicator covers the full view; otherwise it shows
/// as a small refresh pill in the top-trailing corner so existing
/// content stays visible.
func loadingOverlay(_ isLoading: Bool, label: String = "Loading…", isEmpty: Bool = false) -> some View {
modifier(LoadingOverlay(isLoading: isLoading, label: label, isEmpty: isEmpty))
}
}
scarf/scarf/Features/CredentialPools/ViewModels/CredentialPoolsViewModel.swift
+67 -43
View File
@@ -28,6 +28,12 @@ struct HermesCredentialPool: Identifiable, Sendable {
@MainActor
final class CredentialPoolsViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "CredentialPoolsViewModel")
let context: ServerContext
init(context: ServerContext = .local) {
self.context = context
self.oauthFlow = OAuthFlowController(context: context)
}
var pools: [HermesCredentialPool] = []
var isLoading = false
@@ -37,7 +43,7 @@ final class CredentialPoolsViewModel {
/// can extract the authorization URL, pop it open with an explicit button,
/// and feed the code back via stdin. See OAuthFlowController for why we
/// moved off the embedded-terminal approach.
let oauthFlow = OAuthFlowController()
let oauthFlow: OAuthFlowController
var oauthProvider: String = ""
/// Convenience — the sheet keys a lot of UI off "is the flow running?".
var oauthInProgress: Bool { oauthFlow.isRunning }
@@ -47,34 +53,42 @@ final class CredentialPoolsViewModel {
/// Source of truth is `~/.hermes/auth.json`. Parsing box-drawn `hermes auth list`
/// output is fragile — the JSON file is structured, stable, and already stores
/// exactly the pool data the UI needs. We never display full tokens.
///
/// Runs the file reads on a detached task so the synchronous SSH calls
/// (which can block for hundreds of milliseconds even with ControlMaster
/// multiplexing) don't freeze the main thread / spin the beach ball.
func load() {
isLoading = true
defer { isLoading = false }
let ctx = context
Task.detached { [weak self] in
let authData = ctx.readData(ctx.paths.authJSON)
let yaml = ctx.readText(ctx.paths.configYAML) ?? ""
let strategies = Self.parseStrategies(from: yaml)
let authPath = HermesPaths.home + "/auth.json"
let strategies = parseStrategies()
let decodedPools: [HermesCredentialPool]
if let data = authData,
let decoded = try? JSONDecoder().decode(AuthFile.self, from: data) {
decodedPools = Self.buildPools(from: decoded, strategies: strategies)
} else {
decodedPools = []
}
guard let data = try? Data(contentsOf: URL(fileURLWithPath: authPath)) else {
pools = []
return
}
do {
let decoded = try JSONDecoder().decode(AuthFile.self, from: data)
pools = Self.buildPools(from: decoded, strategies: strategies)
} catch {
logger.error("Failed to decode auth.json: \(error.localizedDescription)")
pools = []
await MainActor.run { [weak self] in
self?.pools = decodedPools
self?.isLoading = false
}
}
}
/// The `credential_pool_strategies:` map lives in config.yaml as `<provider>: <strategy>`.
private func parseStrategies() -> [String: String] {
guard let yaml = try? String(contentsOfFile: HermesPaths.configYAML, encoding: .utf8) else { return [:] }
/// Pure-function form so it's safe to call from the detached load task.
nonisolated private static func parseStrategies(from yaml: String) -> [String: String] {
guard !yaml.isEmpty else { return [:] }
let parsed = HermesFileService.parseNestedYAML(yaml)
return parsed.maps["credential_pool_strategies"] ?? [:]
}
private static func buildPools(from auth: AuthFile, strategies: [String: String]) -> [HermesCredentialPool] {
nonisolated private static func buildPools(from auth: AuthFile, strategies: [String: String]) -> [HermesCredentialPool] {
auth.credential_pool.keys.sorted().map { provider in
let entries = auth.credential_pool[provider] ?? []
let creds = entries.enumerated().map { index, entry in
@@ -100,7 +114,7 @@ final class CredentialPoolsViewModel {
/// Return last 4 chars prefixed with "…", or "" if the token is too short.
/// Callers MUST NOT pass the full token anywhere user-visible beyond this.
private static func tail(of token: String) -> String {
nonisolated private static func tail(of token: String) -> String {
guard token.count >= 4 else { return "" }
return "…" + String(token.suffix(4))
}
@@ -206,21 +220,7 @@ final class CredentialPoolsViewModel {
@discardableResult
private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
let process = Process()
process.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
process.arguments = arguments
process.environment = HermesFileService.enrichedEnvironment()
let pipe = Pipe()
process.standardOutput = pipe
process.standardError = Pipe()
do {
try process.run()
process.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
return (String(data: data, encoding: .utf8) ?? "", process.terminationStatus)
} catch {
return ("", -1)
}
context.runHermes(arguments)
}
}
@@ -229,16 +229,40 @@ final class CredentialPoolsViewModel {
// All fields are optional because the format evolves and we want decoding to
// succeed even if hermes adds new keys or omits some for certain auth types.
private struct AuthFile: Decodable {
let credential_pool: [String: [AuthEntry]]
// Hand-written `init(from:)` so Swift 6 doesn't synthesize a MainActor-
// isolated conformance — auth.json decode runs in `load()`'s detached task.
private struct AuthFile: Decodable, Sendable {
nonisolated let credential_pool: [String: [AuthEntry]]
enum CodingKeys: String, CodingKey { case credential_pool }
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.credential_pool = try c.decode([String: [AuthEntry]].self, forKey: .credential_pool)
}
}
private struct AuthEntry: Decodable {
let id: String?
let label: String?
let auth_type: String?
let source: String?
let access_token: String?
let last_status: String?
let request_count: Int?
private struct AuthEntry: Decodable, Sendable {
nonisolated let id: String?
nonisolated let label: String?
nonisolated let auth_type: String?
nonisolated let source: String?
nonisolated let access_token: String?
nonisolated let last_status: String?
nonisolated let request_count: Int?
enum CodingKeys: String, CodingKey {
case id, label, auth_type, source, access_token, last_status, request_count
}
nonisolated init(from decoder: any Decoder) throws {
let c = try decoder.container(keyedBy: CodingKeys.self)
self.id = try c.decodeIfPresent(String.self, forKey: .id)
self.label = try c.decodeIfPresent(String.self, forKey: .label)
self.auth_type = try c.decodeIfPresent(String.self, forKey: .auth_type)
self.source = try c.decodeIfPresent(String.self, forKey: .source)
self.access_token = try c.decodeIfPresent(String.self, forKey: .access_token)
self.last_status = try c.decodeIfPresent(String.self, forKey: .last_status)
self.request_count = try c.decodeIfPresent(Int.self, forKey: .request_count)
}
}
scarf/scarf/Features/CredentialPools/ViewModels/OAuthFlowController.swift
+20 -4
View File
@@ -27,6 +27,12 @@ import os
@MainActor
final class OAuthFlowController {
private let logger = Logger(subsystem: "com.scarf", category: "OAuthFlowController")
let context: ServerContext
init(context: ServerContext = .local) {
self.context = context
}
// MARK: - Observable state
@@ -82,10 +88,20 @@ final class OAuthFlowController {
args += ["--label", trimmedLabel]
}
let proc = Process()
proc.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
proc.arguments = args
proc.environment = HermesFileService.enrichedEnvironment()
// Use the transport so OAuth works against remote contexts too:
// local spawns hermes directly, remote rounds through ssh -T while
// preserving stdin (for the auth-code prompt) and stdout (for the
// URL parser).
let proc = context.makeTransport().makeProcess(
executable: context.paths.hermesBinary,
args: args
)
if !context.isRemote {
// Only enrich env locally — the remote ssh process gets the
// remote login env naturally, and exporting our local API keys
// into it would be wrong.
proc.environment = HermesFileService.enrichedEnvironment()
}
let outPipe = Pipe()
let inPipe = Pipe()
scarf/scarf/Features/CredentialPools/Views/CredentialPoolsView.swift
+12 -2
View File
@@ -1,10 +1,15 @@
import SwiftUI
struct CredentialPoolsView: View {
@State private var viewModel = CredentialPoolsViewModel()
@State private var viewModel: CredentialPoolsViewModel
@State private var showAddSheet = false
@State private var pendingRemove: HermesCredential?
init(context: ServerContext) {
_viewModel = State(initialValue: CredentialPoolsViewModel(context: context))
}
var body: some View {
ScrollView {
VStack(alignment: .leading, spacing: 16) {
@@ -24,6 +29,11 @@ struct CredentialPoolsView: View {
.frame(maxWidth: .infinity, alignment: .topLeading)
}
.navigationTitle("Credential Pools")
.loadingOverlay(
viewModel.isLoading,
label: "Loading credentials…",
isEmpty: viewModel.pools.isEmpty
)
.onAppear { viewModel.load() }
.sheet(isPresented: $showAddSheet) {
AddCredentialSheet(viewModel: viewModel) {
@@ -194,7 +204,7 @@ private struct AddCredentialSheet: View {
@State private var oauthStarted: Bool = false
@State private var authCode: String = ""
private let catalog = ModelCatalogService()
private var catalog: ModelCatalogService { ModelCatalogService(context: viewModel.context) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Cron/ViewModels/CronViewModel.swift
+32 -7
View File
@@ -5,7 +5,14 @@ import os
@Observable
final class CronViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "CronViewModel")
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var jobs: [HermesCronJob] = []
var selectedJob: HermesCronJob?
@@ -14,19 +21,37 @@ final class CronViewModel {
var message: String?
var showCreateSheet = false
var editingJob: HermesCronJob?
var isLoading = false
func load() {
jobs = fileService.loadCronJobs()
availableSkills = fileService.loadSkills().flatMap { $0.skills.map(\.id) }.sorted()
if let selected = selectedJob, let refreshed = jobs.first(where: { $0.id == selected.id }) {
selectedJob = refreshed
jobOutput = fileService.loadCronOutput(jobId: refreshed.id)
isLoading = true
let svc = fileService
let selectedID = selectedJob?.id
Task.detached { [weak self] in
// Three sync transport ops on remote — keep them off main.
let jobs = svc.loadCronJobs()
let skills = svc.loadSkills().flatMap { $0.skills.map(\.id) }.sorted()
let refreshed = selectedID.flatMap { id in jobs.first(where: { $0.id == id }) }
let output = refreshed.flatMap { svc.loadCronOutput(jobId: $0.id) }
await MainActor.run { [weak self] in
guard let self else { return }
self.jobs = jobs
self.availableSkills = skills
if let refreshed { self.selectedJob = refreshed }
if output != nil { self.jobOutput = output }
self.isLoading = false
}
}
}
func selectJob(_ job: HermesCronJob) {
selectedJob = job
jobOutput = fileService.loadCronOutput(jobId: job.id)
let svc = fileService
let jobID = job.id
Task.detached { [weak self] in
let output = svc.loadCronOutput(jobId: jobID)
await MainActor.run { [weak self] in self?.jobOutput = output }
}
}
// MARK: - CLI wrappers
scarf/scarf/Features/Cron/Views/CronView.swift
+7 -1
View File
@@ -1,9 +1,14 @@
import SwiftUI
struct CronView: View {
@State private var viewModel = CronViewModel()
@State private var viewModel: CronViewModel
@State private var pendingDelete: HermesCronJob?
init(context: ServerContext) {
_viewModel = State(initialValue: CronViewModel(context: context))
}
var body: some View {
HSplitView {
jobsList
@@ -12,6 +17,7 @@ struct CronView: View {
.frame(minWidth: 400)
}
.navigationTitle("Cron Jobs")
.loadingOverlay(viewModel.isLoading, label: "Loading cron jobs…", isEmpty: viewModel.jobs.isEmpty)
.onAppear { viewModel.load() }
.sheet(isPresented: $viewModel.showCreateSheet) {
CronJobEditor(mode: .create, availableSkills: viewModel.availableSkills) { form in
scarf/scarf/Features/Dashboard/ViewModels/DashboardViewModel.swift
+24 -6
View File
@@ -2,8 +2,16 @@ import Foundation
@Observable
final class DashboardViewModel {
private let dataService = HermesDataService()
private let fileService = HermesFileService()
let context: ServerContext
private let dataService: HermesDataService
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.dataService = HermesDataService(context: context)
self.fileService = HermesFileService(context: context)
}
var stats = HermesDataService.SessionStats.empty
var recentSessions: [HermesSession] = []
@@ -15,16 +23,26 @@ final class DashboardViewModel {
func load() async {
isLoading = true
let opened = await dataService.open()
// refresh() = close + reopen, forces a fresh remote snapshot. Cheap
// on local (live DB reopen).
let opened = await dataService.refresh()
if opened {
stats = await dataService.fetchStats()
recentSessions = await dataService.fetchSessions(limit: 5)
sessionPreviews = await dataService.fetchSessionPreviews(limit: 5)
await dataService.close()
}
config = fileService.loadConfig()
gatewayState = fileService.loadGatewayState()
hermesRunning = fileService.isHermesRunning()
// The fileService methods are synchronous and route through the
// transport. For remote contexts each call is a blocking ssh
// round-trip — do them off the main thread to avoid spinning the
// beach ball during the load.
let svc = fileService
let (cfg, gw, running) = await Task.detached {
(svc.loadConfig(), svc.loadGatewayState(), svc.isHermesRunning())
}.value
config = cfg
gatewayState = gw
hermesRunning = running
isLoading = false
}
}
scarf/scarf/Features/Dashboard/Views/DashboardView.swift
+11 -1
View File
@@ -1,10 +1,15 @@
import SwiftUI
struct DashboardView: View {
@State private var viewModel = DashboardViewModel()
@State private var viewModel: DashboardViewModel
@Environment(AppCoordinator.self) private var coordinator
@Environment(HermesFileWatcher.self) private var fileWatcher
init(context: ServerContext) {
_viewModel = State(initialValue: DashboardViewModel(context: context))
}
var body: some View {
ScrollView {
VStack(alignment: .leading, spacing: 20) {
@@ -16,6 +21,11 @@ struct DashboardView: View {
.frame(maxWidth: .infinity, alignment: .topLeading)
}
.navigationTitle("Dashboard")
.loadingOverlay(
viewModel.isLoading,
label: "Loading dashboard…",
isEmpty: viewModel.recentSessions.isEmpty
)
.task { await viewModel.load() }
.onChange(of: fileWatcher.lastChangeDate) {
Task { await viewModel.load() }
scarf/scarf/Features/Gateway/ViewModels/GatewayViewModel.swift
+76 -68
View File
@@ -37,6 +37,12 @@ struct PendingPairing: Identifiable {
@Observable
final class GatewayViewModel {
let context: ServerContext
init(context: ServerContext = .local) {
self.context = context
}
var gateway = GatewayInfo(pid: nil, state: "unknown", exitReason: nil, startTime: nil, updatedAt: nil, platforms: [], isLoaded: false, isStale: false)
var approvedUsers: [PairedUser] = []
var pendingPairings: [PendingPairing] = []
@@ -45,52 +51,26 @@ final class GatewayViewModel {
func load() {
isLoading = true
loadGatewayStatus()
loadPairing()
isLoading = false
}
func startGateway() {
runHermes(["gateway", "start"])
actionMessage = "Gateway start requested"
DispatchQueue.main.asyncAfter(deadline: .now() + 2) { [weak self] in
self?.loadGatewayStatus()
self?.actionMessage = nil
let ctx = context
Task.detached { [weak self] in
// Two sync transport calls + two CLI invocations — substantial
// remote latency. Detach the whole load and commit at the end.
let status = Self.fetchGatewayStatus(context: ctx)
let pairing = Self.fetchPairing(context: ctx)
await MainActor.run { [weak self] in
guard let self else { return }
self.gateway = status
self.approvedUsers = pairing.approved
self.pendingPairings = pairing.pending
self.isLoading = false
}
}
}
func stopGateway() {
runHermes(["gateway", "stop"])
actionMessage = "Gateway stop requested"
DispatchQueue.main.asyncAfter(deadline: .now() + 2) { [weak self] in
self?.loadGatewayStatus()
self?.actionMessage = nil
}
}
func restartGateway() {
runHermes(["gateway", "restart"])
actionMessage = "Gateway restart requested"
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.loadGatewayStatus()
self?.actionMessage = nil
}
}
func approvePairing(platform: String, code: String) {
runHermes(["pairing", "approve", platform, code])
loadPairing()
}
func revokeUser(_ user: PairedUser) {
runHermes(["pairing", "revoke", user.platform, user.userId])
approvedUsers.removeAll { $0.id == user.id }
}
// MARK: - Private
private func loadGatewayStatus() {
let stateJSON = FileManager.default.contents(atPath: HermesPaths.gatewayStateJSON)
/// Static form of the gateway-status walk so the detached load can call
/// it without bouncing back to MainActor.
nonisolated private static func fetchGatewayStatus(context: ServerContext) -> GatewayInfo {
let stateJSON = context.readData(context.paths.gatewayStateJSON)
var pid: Int?
var state = "unknown"
var exitReason: String?
@@ -117,21 +97,21 @@ final class GatewayViewModel {
}
}
let statusOutput = runHermes(["gateway", "status"]).output
let statusOutput = context.runHermes(["gateway", "status"]).output
let isLoaded = statusOutput.contains("service is loaded")
let isStale = statusOutput.contains("stale")
gateway = GatewayInfo(
return GatewayInfo(
pid: pid, state: state, exitReason: exitReason,
startTime: startTime, updatedAt: updatedAt,
platforms: platforms, isLoaded: isLoaded, isStale: isStale
)
}
private func loadPairing() {
let output = runHermes(["pairing", "list"]).output
approvedUsers = []
pendingPairings = []
nonisolated private static func fetchPairing(context: ServerContext) -> (approved: [PairedUser], pending: [PendingPairing]) {
let output = context.runHermes(["pairing", "list"]).output
var approved: [PairedUser] = []
var pending: [PendingPairing] = []
var inApproved = false
var inPending = false
@@ -147,31 +127,59 @@ final class GatewayViewModel {
let platform = String(parts[0])
let userId = String(parts[1])
let name = parts[2...].joined(separator: " ")
approvedUsers.append(PairedUser(platform: platform, userId: userId, name: name))
}
if inPending && parts.count >= 2 {
approved.append(PairedUser(platform: platform, userId: userId, name: name))
} else if inPending && parts.count >= 2 {
let platform = String(parts[0])
let code = String(parts[1])
pendingPairings.append(PendingPairing(platform: platform, code: code))
pending.append(PendingPairing(platform: platform, code: code))
}
}
return (approved, pending)
}
func startGateway() {
runHermes(["gateway", "start"])
actionMessage = "Gateway start requested"
DispatchQueue.main.asyncAfter(deadline: .now() + 2) { [weak self] in
self?.load()
self?.actionMessage = nil
}
}
@discardableResult
private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
let process = Process()
process.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
process.arguments = arguments
let pipe = Pipe()
process.standardOutput = pipe
process.standardError = Pipe()
do {
try process.run()
process.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
return (String(data: data, encoding: .utf8) ?? "", process.terminationStatus)
} catch {
return ("", -1)
func stopGateway() {
runHermes(["gateway", "stop"])
actionMessage = "Gateway stop requested"
DispatchQueue.main.asyncAfter(deadline: .now() + 2) { [weak self] in
self?.load()
self?.actionMessage = nil
}
}
func restartGateway() {
runHermes(["gateway", "restart"])
actionMessage = "Gateway restart requested"
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.load()
self?.actionMessage = nil
}
}
func approvePairing(platform: String, code: String) {
runHermes(["pairing", "approve", platform, code])
load()
}
func revokeUser(_ user: PairedUser) {
runHermes(["pairing", "revoke", user.platform, user.userId])
approvedUsers.removeAll { $0.id == user.id }
}
// MARK: - Private
// (loadGatewayStatus / loadPairing were moved to static helpers above
// so the detached load() can run them without touching MainActor state.)
@discardableResult
private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
context.runHermes(arguments)
}
}
scarf/scarf/Features/Gateway/Views/GatewayView.swift
+6 -1
View File
@@ -1,9 +1,14 @@
import SwiftUI
struct GatewayView: View {
@State private var viewModel = GatewayViewModel()
@State private var viewModel: GatewayViewModel
@Environment(HermesFileWatcher.self) private var fileWatcher
init(context: ServerContext) {
_viewModel = State(initialValue: GatewayViewModel(context: context))
}
var body: some View {
ScrollView {
VStack(alignment: .leading, spacing: 24) {
scarf/scarf/Features/Health/ViewModels/HealthViewModel.swift
+140 -25
View File
@@ -22,7 +22,14 @@ struct HealthSection: Identifiable {
@Observable
final class HealthViewModel {
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var version = ""
var updateInfo = ""
@@ -43,19 +50,50 @@ final class HealthViewModel {
func load() {
isLoading = true
refreshProcessStatus()
loadVersion()
let statusOutput = runHermes(["status"]).output
statusSections = parseOutput(statusOutput)
let doctorOutput = runHermes(["doctor"]).output
doctorSections = parseOutput(doctorOutput)
computeCounts()
isLoading = false
let ctx = context
let svc = fileService
// Health runs four sync transport-mediated commands plus a process
// probe — that's 4-5 ssh round-trips on remote, easily 1-2s. Detach
// the whole load.
Task.detached { [weak self] in
let pid = svc.hermesPID()
let versionOutput = ctx.runHermes(["version"]).output
let statusOutput = ctx.runHermes(["status"]).output
let doctorOutput = ctx.runHermes(["doctor"]).output
let lines = versionOutput.components(separatedBy: "\n")
let version = lines.first ?? ""
let updateLine = lines.first(where: { $0.contains("commits behind") })
let hasUpdate = updateLine != nil
let updateInfo = updateLine?.trimmingCharacters(in: .whitespaces) ?? ""
let statusSections = Self.parseOutputStatic(statusOutput)
let doctorSections = Self.parseOutputStatic(doctorOutput)
await MainActor.run { [weak self] in
guard let self else { return }
self.hermesPID = pid
self.hermesRunning = pid != nil
self.version = version
self.updateInfo = updateInfo
self.hasUpdate = hasUpdate
self.statusSections = statusSections
self.doctorSections = doctorSections
self.computeCounts()
self.isLoading = false
}
}
}
func refreshProcessStatus() {
hermesPID = fileService.hermesPID()
hermesRunning = hermesPID != nil
let svc = fileService
Task.detached { [weak self] in
let pid = svc.hermesPID()
await MainActor.run { [weak self] in
self?.hermesPID = pid
self?.hermesRunning = pid != nil
}
}
}
func stopHermes() {
@@ -101,6 +139,96 @@ final class HealthViewModel {
}
}
/// Static-callable form for the detached load() task. The instance
/// `parseOutput` below delegates here so existing call sites still work.
nonisolated static func parseOutputStatic(_ output: String) -> [HealthSection] {
var sections: [HealthSection] = []
var currentTitle = ""
var currentChecks: [HealthCheck] = []
for line in output.components(separatedBy: "\n") {
let trimmed = line.trimmingCharacters(in: .whitespaces)
if trimmed.hasPrefix("◆ ") {
if !currentTitle.isEmpty {
sections.append(HealthSection(
title: currentTitle,
icon: iconForSectionStatic(currentTitle),
checks: currentChecks
))
}
currentTitle = String(trimmed.dropFirst(2))
currentChecks = []
continue
}
if trimmed.hasPrefix("✓ ") {
let text = String(trimmed.dropFirst(2))
let (label, detail) = splitCheckStatic(text)
currentChecks.append(HealthCheck(label: label, status: .ok, detail: detail))
} else if trimmed.hasPrefix("⚠ ") || trimmed.hasPrefix("⚠") {
let text = trimmed.replacingOccurrences(of: "⚠ ", with: "").replacingOccurrences(of: "⚠", with: "")
let (label, detail) = splitCheckStatic(text)
currentChecks.append(HealthCheck(label: label, status: .warning, detail: detail))
} else if trimmed.hasPrefix("✗ ") {
let text = String(trimmed.dropFirst(2))
let (label, detail) = splitCheckStatic(text)
currentChecks.append(HealthCheck(label: label, status: .error, detail: detail))
} else if trimmed.hasPrefix("→ ") || trimmed.hasPrefix("Error:") {
if !currentChecks.isEmpty {
let last = currentChecks.removeLast()
let extra = trimmed.replacingOccurrences(of: "→ ", with: "").replacingOccurrences(of: "Error:", with: "").trimmingCharacters(in: .whitespaces)
let combined = [last.detail, extra].compactMap { $0 }.joined(separator: " ")
currentChecks.append(HealthCheck(label: last.label, status: last.status, detail: combined))
}
} else if !trimmed.isEmpty && trimmed.contains(":") && !trimmed.hasPrefix("┌") && !trimmed.hasPrefix("│") && !trimmed.hasPrefix("└") && !trimmed.hasPrefix("─") && !trimmed.hasPrefix("Run ") && !trimmed.hasPrefix("Found ") && !trimmed.hasPrefix("Tip:") {
let parts = trimmed.split(separator: ":", maxSplits: 1)
if parts.count == 2 {
let key = parts[0].trimmingCharacters(in: .whitespaces)
let val = parts[1].trimmingCharacters(in: .whitespaces)
if !key.isEmpty && key.count < 30 {
currentChecks.append(HealthCheck(label: key, status: .ok, detail: val))
}
}
}
}
if !currentTitle.isEmpty {
sections.append(HealthSection(
title: currentTitle,
icon: iconForSectionStatic(currentTitle),
checks: currentChecks
))
}
return sections
}
nonisolated private static func splitCheckStatic(_ text: String) -> (String, String?) {
if let range = text.range(of: ":") {
let label = String(text[..<range.lowerBound]).trimmingCharacters(in: .whitespaces)
let detail = String(text[range.upperBound...]).trimmingCharacters(in: .whitespaces)
return (label, detail.isEmpty ? nil : detail)
}
return (text, nil)
}
nonisolated private static func iconForSectionStatic(_ title: String) -> String {
let lower = title.lowercased()
if lower.contains("system") || lower.contains("environment") { return "desktopcomputer" }
if lower.contains("config") { return "doc.text" }
if lower.contains("model") || lower.contains("provider") { return "brain" }
if lower.contains("memory") { return "memorychip" }
if lower.contains("session") { return "list.bullet" }
if lower.contains("gateway") || lower.contains("platform") { return "antenna.radiowaves.left.and.right" }
if lower.contains("skill") { return "wrench.and.screwdriver" }
if lower.contains("mcp") { return "cube.box" }
if lower.contains("plugin") { return "puzzlepiece" }
if lower.contains("auth") || lower.contains("credential") { return "key" }
if lower.contains("disk") || lower.contains("storage") { return "internaldrive" }
if lower.contains("update") { return "arrow.triangle.2.circlepath" }
return "circle"
}
private func parseOutput(_ output: String) -> [HealthSection] {
var sections: [HealthSection] = []
var currentTitle = ""
@@ -237,19 +365,6 @@ final class HealthViewModel {
@discardableResult
private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
let process = Process()
process.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
process.arguments = arguments
let pipe = Pipe()
process.standardOutput = pipe
process.standardError = pipe
do {
try process.run()
process.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
return (String(data: data, encoding: .utf8) ?? "", process.terminationStatus)
} catch {
return ("", -1)
}
context.runHermes(arguments)
}
}
scarf/scarf/Features/Health/Views/HealthView.swift
+11 -1
View File
@@ -1,12 +1,17 @@
import SwiftUI
struct HealthView: View {
@State private var viewModel = HealthViewModel()
@State private var viewModel: HealthViewModel
@State private var expandedSection: UUID?
@State private var selectedTab = 0
@State private var showShareConfirm = false
@State private var showDiagnostics = false
init(context: ServerContext) {
_viewModel = State(initialValue: HealthViewModel(context: context))
}
var body: some View {
VStack(spacing: 0) {
headerBar
@@ -43,6 +48,11 @@ struct HealthView: View {
}
}
.navigationTitle("Health")
.loadingOverlay(
viewModel.isLoading,
label: "Running health checks…",
isEmpty: viewModel.statusSections.isEmpty && viewModel.doctorSections.isEmpty
)
.onAppear { viewModel.load() }
.confirmationDialog("Upload debug report?", isPresented: $showShareConfirm) {
Button("Upload", role: .destructive) {
scarf/scarf/Features/Insights/ViewModels/InsightsViewModel.swift
+11 -2
View File
@@ -56,7 +56,14 @@ struct NotableSession: Identifiable {
@Observable
final class InsightsViewModel {
private let dataService = HermesDataService()
let context: ServerContext
private let dataService: HermesDataService
init(context: ServerContext = .local) {
self.context = context
self.dataService = HermesDataService(context: context)
}
var period: InsightsPeriod = .month
var isLoading = true
@@ -85,7 +92,9 @@ final class InsightsViewModel {
func load() async {
isLoading = true
let opened = await dataService.open()
// refresh() forces a fresh remote snapshot each load. On local it's
// a cheap reopen of the live DB.
let opened = await dataService.refresh()
guard opened else {
isLoading = false
return
scarf/scarf/Features/Insights/Views/InsightsView.swift
+10 -1
View File
@@ -1,8 +1,14 @@
import SwiftUI
struct InsightsView: View {
@State private var viewModel = InsightsViewModel()
@State private var viewModel: InsightsViewModel
@Environment(AppCoordinator.self) private var coordinator
@Environment(HermesFileWatcher.self) private var fileWatcher
init(context: ServerContext) {
_viewModel = State(initialValue: InsightsViewModel(context: context))
}
var body: some View {
ScrollView {
@@ -23,6 +29,9 @@ struct InsightsView: View {
.onChange(of: viewModel.period) {
Task { await viewModel.load() }
}
.onChange(of: fileWatcher.lastChangeDate) {
Task { await viewModel.load() }
}
}
private var periodPicker: some View {
scarf/scarf/Features/Logs/ViewModels/LogsViewModel.swift
+15 -9
View File
@@ -2,7 +2,13 @@ import Foundation
@Observable
final class LogsViewModel {
private let logService = HermesLogService()
let context: ServerContext
private let logService: HermesLogService
init(context: ServerContext = .local) {
self.context = context
self.logService = HermesLogService(context: context)
}
var entries: [LogEntry] = []
var selectedLogFile: LogFile = .agent
@@ -17,13 +23,13 @@ final class LogsViewModel {
case gateway = "gateway.log"
var id: String { rawValue }
}
var path: String {
switch self {
case .agent: return HermesPaths.agentLog
case .errors: return HermesPaths.errorsLog
case .gateway: return HermesPaths.gatewayLog
}
private func path(for file: LogFile) -> String {
switch file {
case .agent: return context.paths.agentLog
case .errors: return context.paths.errorsLog
case .gateway: return context.paths.gatewayLog
}
}
@@ -62,7 +68,7 @@ final class LogsViewModel {
}
func load() async {
await logService.openLog(path: selectedLogFile.path)
await logService.openLog(path: path(for: selectedLogFile))
entries = await logService.readLastLines(count: 500)
await logService.seekToEnd()
startPolling()
@@ -71,7 +77,7 @@ final class LogsViewModel {
func switchLogFile(_ file: LogFile) async {
selectedLogFile = file
entries = []
await logService.openLog(path: file.path)
await logService.openLog(path: path(for: file))
entries = await logService.readLastLines(count: 500)
await logService.seekToEnd()
}
scarf/scarf/Features/Logs/Views/LogsView.swift
+6 -1
View File
@@ -1,7 +1,12 @@
import SwiftUI
struct LogsView: View {
@State private var viewModel = LogsViewModel()
@State private var viewModel: LogsViewModel
init(context: ServerContext) {
_viewModel = State(initialValue: LogsViewModel(context: context))
}
var body: some View {
VStack(spacing: 0) {
scarf/scarf/Features/MCPServers/ViewModels/MCPServerEditorViewModel.swift
+29 -20
View File
@@ -8,7 +8,8 @@ final class MCPServerEditorViewModel {
var value: String
}
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
let server: HermesMCPServer
var envDraft: [KeyValueRow]
@@ -23,8 +24,10 @@ final class MCPServerEditorViewModel {
var isSaving: Bool = false
var saveError: String?
init(server: HermesMCPServer) {
init(server: HermesMCPServer, context: ServerContext = .local) {
self.server = server
self.context = context
self.fileService = HermesFileService(context: context)
self.envDraft = server.env.keys.sorted().map { KeyValueRow(key: $0, value: server.env[$0] ?? "") }
self.headersDraft = server.headers.keys.sorted().map { KeyValueRow(key: $0, value: server.headers[$0] ?? "") }
self.includeDraft = server.toolsInclude.joined(separator: ", ")
@@ -73,27 +76,33 @@ final class MCPServerEditorViewModel {
let prompts = promptsEnabled
Task.detached {
var success = true
switch transport {
case .stdio:
if !service.setMCPServerEnv(name: name, env: envMap) { success = false }
case .http:
if !service.setMCPServerHeaders(name: name, headers: headerMap) { success = false }
}
if !service.updateMCPToolFilters(
name: name,
include: include,
exclude: exclude,
resources: resources,
prompts: prompts
) { success = false }
if !service.setMCPServerTimeouts(name: name, timeout: timeoutValue, connectTimeout: connectValue) {
success = false
}
// Compute success as an immutable so the MainActor.run closure
// captures a value, not a mutable var. Swift 6 rejects
// var-captures across concurrent closures as data races.
let success: Bool = {
var ok = true
switch transport {
case .stdio:
if !service.setMCPServerEnv(name: name, env: envMap) { ok = false }
case .http:
if !service.setMCPServerHeaders(name: name, headers: headerMap) { ok = false }
}
if !service.updateMCPToolFilters(
name: name,
include: include,
exclude: exclude,
resources: resources,
prompts: prompts
) { ok = false }
if !service.setMCPServerTimeouts(name: name, timeout: timeoutValue, connectTimeout: connectValue) {
ok = false
}
return ok
}()
await MainActor.run {
self.isSaving = false
if !success {
self.saveError = "One or more fields could not be written. Check \(HermesPaths.configYAML)."
self.saveError = "One or more fields could not be written. Check \(self.context.paths.configYAML)."
}
completion(success)
}
scarf/scarf/Features/MCPServers/ViewModels/MCPServersViewModel.swift
+21 -5
View File
@@ -2,7 +2,14 @@ import Foundation
@Observable
final class MCPServersViewModel {
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var servers: [HermesMCPServer] = []
var selectedServerName: String?
@@ -41,10 +48,19 @@ final class MCPServersViewModel {
func load() {
isLoading = true
servers = fileService.loadMCPServers()
isLoading = false
if let name = selectedServerName, !servers.contains(where: { $0.name == name }) {
selectedServerName = nil
let svc = fileService
Task.detached { [weak self] in
// loadMCPServers reads config.yaml + lists mcp-tokens — both
// are sync transport calls that block on remote ssh round-trips.
let result = svc.loadMCPServers()
await MainActor.run { [weak self] in
guard let self else { return }
self.servers = result
self.isLoading = false
if let name = self.selectedServerName, !result.contains(where: { $0.name == name }) {
self.selectedServerName = nil
}
}
}
}
scarf/scarf/Features/MCPServers/Views/MCPServersView.swift
+11 -1
View File
@@ -1,7 +1,12 @@
import SwiftUI
struct MCPServersView: View {
@State private var viewModel = MCPServersViewModel()
@State private var viewModel: MCPServersViewModel
init(context: ServerContext) {
_viewModel = State(initialValue: MCPServersViewModel(context: context))
}
var body: some View {
HSplitView {
@@ -11,6 +16,11 @@ struct MCPServersView: View {
.frame(minWidth: 500)
}
.navigationTitle("MCP Servers (\(viewModel.servers.count))")
.loadingOverlay(
viewModel.isLoading,
label: "Loading MCP servers…",
isEmpty: viewModel.servers.isEmpty
)
.searchable(text: $viewModel.searchText, prompt: "Filter servers...")
.toolbar {
ToolbarItemGroup(placement: .primaryAction) {
scarf/scarf/Features/Memory/ViewModels/MemoryViewModel.swift
+55 -18
View File
@@ -2,7 +2,14 @@ import Foundation
@Observable
final class MemoryViewModel {
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var memoryContent = ""
var userContent = ""
@@ -12,6 +19,7 @@ final class MemoryViewModel {
var editText = ""
var profiles: [String] = []
var activeProfile = ""
var isLoading = false
enum EditTarget {
case memory, user
@@ -30,20 +38,40 @@ final class MemoryViewModel {
var hasMultipleProfiles: Bool { !profiles.isEmpty }
func load() {
let config = fileService.loadConfig()
memoryProvider = config.memoryProvider
profiles = fileService.loadMemoryProfiles()
if activeProfile.isEmpty {
activeProfile = config.memoryProfile
isLoading = true
let svc = fileService
let currentProfile = activeProfile
// Sync transport calls would beach-ball the UI on remote — dispatch
// off main, then commit results back on MainActor.
Task.detached { [weak self] in
let config = svc.loadConfig()
let profiles = svc.loadMemoryProfiles()
let profile = currentProfile.isEmpty ? config.memoryProfile : currentProfile
let memory = svc.loadMemory(profile: profile)
let user = svc.loadUserProfile(profile: profile)
await MainActor.run { [weak self] in
guard let self else { return }
self.memoryProvider = config.memoryProvider
self.profiles = profiles
self.activeProfile = profile
self.memoryContent = memory
self.userContent = user
self.isLoading = false
}
}
memoryContent = fileService.loadMemory(profile: activeProfile)
userContent = fileService.loadUserProfile(profile: activeProfile)
}
func switchProfile(_ profile: String) {
activeProfile = profile
memoryContent = fileService.loadMemory(profile: profile)
userContent = fileService.loadUserProfile(profile: profile)
let svc = fileService
Task.detached { [weak self] in
let memory = svc.loadMemory(profile: profile)
let user = svc.loadUserProfile(profile: profile)
await MainActor.run { [weak self] in
self?.memoryContent = memory
self?.userContent = user
}
}
}
func startEditing(_ target: EditTarget) {
@@ -53,15 +81,24 @@ final class MemoryViewModel {
}
func save() {
switch editingFile {
case .memory:
fileService.saveMemory(editText, profile: activeProfile)
memoryContent = editText
case .user:
fileService.saveUserProfile(editText, profile: activeProfile)
userContent = editText
let svc = fileService
let target = editingFile
let text = editText
let profile = activeProfile
Task.detached { [weak self] in
switch target {
case .memory: svc.saveMemory(text, profile: profile)
case .user: svc.saveUserProfile(text, profile: profile)
}
await MainActor.run { [weak self] in
guard let self else { return }
switch target {
case .memory: self.memoryContent = text
case .user: self.userContent = text
}
self.isEditing = false
}
}
isEditing = false
}
func cancelEditing() {
scarf/scarf/Features/Memory/Views/MemoryView.swift
+11 -1
View File
@@ -1,9 +1,14 @@
import SwiftUI
struct MemoryView: View {
@State private var viewModel = MemoryViewModel()
@State private var viewModel: MemoryViewModel
@Environment(HermesFileWatcher.self) private var fileWatcher
init(context: ServerContext) {
_viewModel = State(initialValue: MemoryViewModel(context: context))
}
var body: some View {
ScrollView {
VStack(alignment: .leading, spacing: 20) {
@@ -43,6 +48,11 @@ struct MemoryView: View {
.frame(maxWidth: .infinity, alignment: .topLeading)
}
.navigationTitle("Memory")
.loadingOverlay(
viewModel.isLoading,
label: "Loading memory…",
isEmpty: viewModel.memoryContent.isEmpty && viewModel.userContent.isEmpty
)
.onAppear { viewModel.load() }
.onChange(of: fileWatcher.lastChangeDate) {
viewModel.load()
scarf/scarf/Features/Personalities/ViewModels/PersonalitiesViewModel.swift
+49 -27
View File
@@ -13,26 +13,63 @@ struct HermesPersonality: Identifiable, Sendable, Equatable {
@Observable
final class PersonalitiesViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "PersonalitiesViewModel")
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var personalities: [HermesPersonality] = []
var activeName: String = ""
var soulMarkdown: String = ""
var soulPath: String { HermesPaths.home + "/SOUL.md" }
var soulPath: String { context.paths.soulMD }
var message: String?
func load() {
let config = fileService.loadConfig()
activeName = config.personality
personalities = parsePersonalitiesBlock()
soulMarkdown = (try? String(contentsOfFile: soulPath, encoding: .utf8)) ?? ""
let svc = fileService
let ctx = context
let path = soulPath
Task.detached { [weak self] in
let config = svc.loadConfig()
let parsed = Self.parsePersonalitiesBlock(yaml: ctx.readText(ctx.paths.configYAML) ?? "")
let soul = ctx.readText(path) ?? ""
await MainActor.run { [weak self] in
guard let self else { return }
self.activeName = config.personality
self.personalities = parsed
self.soulMarkdown = soul
}
}
}
/// Static form so the detached load can call into it without touching
/// MainActor-isolated state. The instance form below remains for any
/// other callers that need it.
nonisolated private static func parsePersonalitiesBlock(yaml: String) -> [HermesPersonality] {
guard !yaml.isEmpty else { return [] }
let parsed = HermesFileService.parseNestedYAML(yaml)
var nameSet: Set<String> = []
for key in parsed.values.keys where key.hasPrefix("personalities.") {
let parts = key.split(separator: ".", maxSplits: 2, omittingEmptySubsequences: false)
if parts.count >= 2 { nameSet.insert(String(parts[1])) }
}
for key in parsed.lists.keys where key.hasPrefix("personalities.") {
let parts = key.split(separator: ".", maxSplits: 2, omittingEmptySubsequences: false)
if parts.count >= 2 { nameSet.insert(String(parts[1])) }
}
return nameSet.sorted().map { name in
let prompt = parsed.values["personalities.\(name).prompt"] ?? ""
return HermesPersonality(name: name, prompt: HermesFileService.stripYAMLQuotes(prompt))
}
}
/// Parse the `personalities:` section of config.yaml using the nested parser.
/// Each personality is a top-level key under `personalities`, optionally with
/// a `prompt:` child.
private func parsePersonalitiesBlock() -> [HermesPersonality] {
guard let yaml = try? String(contentsOfFile: HermesPaths.configYAML, encoding: .utf8) else { return [] }
guard let yaml = context.readText(context.paths.configYAML) else { return [] }
let parsed = HermesFileService.parseNestedYAML(yaml)
// Find all keys "personalities.<name>[.subkey]"
var nameSet: Set<String> = []
@@ -65,12 +102,11 @@ final class PersonalitiesViewModel {
}
func saveSOUL(_ content: String) {
do {
try content.write(toFile: soulPath, atomically: true, encoding: .utf8)
if context.writeText(soulPath, content: content) {
soulMarkdown = content
message = "SOUL.md saved"
} catch {
logger.error("Failed to write SOUL.md: \(error.localizedDescription)")
} else {
logger.error("Failed to write SOUL.md to \(self.context.displayName)")
message = "Save failed"
}
DispatchQueue.main.asyncAfter(deadline: .now() + 2) { [weak self] in
@@ -79,25 +115,11 @@ final class PersonalitiesViewModel {
}
func openConfigInEditor() {
NSWorkspace.shared.open(URL(fileURLWithPath: HermesPaths.configYAML))
context.openInLocalEditor(context.paths.configYAML)
}
@discardableResult
private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
let process = Process()
process.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
process.arguments = arguments
process.environment = HermesFileService.enrichedEnvironment()
let pipe = Pipe()
process.standardOutput = pipe
process.standardError = Pipe()
do {
try process.run()
process.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
return (String(data: data, encoding: .utf8) ?? "", process.terminationStatus)
} catch {
return ("", -1)
}
context.runHermes(arguments)
}
}
scarf/scarf/Features/Personalities/Views/PersonalitiesView.swift
+6 -1
View File
@@ -1,10 +1,15 @@
import SwiftUI
struct PersonalitiesView: View {
@State private var viewModel = PersonalitiesViewModel()
@State private var viewModel: PersonalitiesViewModel
@State private var soulDraft = ""
@State private var editingSOUL = false
init(context: ServerContext) {
_viewModel = State(initialValue: PersonalitiesViewModel(context: context))
}
var body: some View {
ScrollView {
VStack(alignment: .leading, spacing: 20) {
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/DiscordSetupViewModel.swift
+6 -3
View File
@@ -6,6 +6,9 @@ import os
@Observable
@MainActor
final class DiscordSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
var botToken: String = ""
var allowedUsers: String = ""
var homeChannel: String = ""
@@ -26,7 +29,7 @@ final class DiscordSetupViewModel {
let replyToModeOptions = ["off", "first", "all"]
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
botToken = env["DISCORD_BOT_TOKEN"] ?? ""
allowedUsers = env["DISCORD_ALLOWED_USERS"] ?? ""
homeChannel = env["DISCORD_HOME_CHANNEL"] ?? ""
@@ -34,7 +37,7 @@ final class DiscordSetupViewModel {
allowBots = env["DISCORD_ALLOW_BOTS"] ?? "none"
replyToMode = env["DISCORD_REPLY_TO_MODE"] ?? "first"
let cfg = HermesFileService().loadConfig().discord
let cfg = HermesFileService(context: context).loadConfig().discord
requireMention = cfg.requireMention
freeResponseChannels = cfg.freeResponseChannels
autoThread = cfg.autoThread
@@ -56,7 +59,7 @@ final class DiscordSetupViewModel {
"discord.auto_thread": PlatformSetupHelpers.envBool(autoThread),
"discord.reactions": PlatformSetupHelpers.envBool(reactions)
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: configKV)
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: configKV)
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/EmailSetupViewModel.swift
+9 -3
View File
@@ -5,6 +5,12 @@ import Foundation
@Observable
@MainActor
final class EmailSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) {
self.context = context
}
var address: String = ""
var password: String = ""
var imapHost: String = ""
@@ -34,7 +40,7 @@ final class EmailSetupViewModel {
]
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
address = env["EMAIL_ADDRESS"] ?? ""
password = env["EMAIL_PASSWORD"] ?? ""
imapHost = env["EMAIL_IMAP_HOST"] ?? ""
@@ -46,7 +52,7 @@ final class EmailSetupViewModel {
homeAddress = env["EMAIL_HOME_ADDRESS"] ?? ""
allowAllUsers = PlatformSetupHelpers.parseEnvBool(env["EMAIL_ALLOW_ALL_USERS"])
// skip_attachments lives in config.yaml.
let yaml = (try? String(contentsOfFile: HermesPaths.configYAML, encoding: .utf8)) ?? ""
let yaml = context.readText(context.paths.configYAML) ?? ""
let parsed = HermesFileService.parseNestedYAML(yaml)
skipAttachments = (parsed.values["platforms.email.skip_attachments"] ?? "false") == "true"
}
@@ -72,7 +78,7 @@ final class EmailSetupViewModel {
let configKV: [String: String] = [
"platforms.email.skip_attachments": PlatformSetupHelpers.envBool(skipAttachments)
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: configKV)
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: configKV)
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/FeishuSetupViewModel.swift
+5 -2
View File
@@ -5,6 +5,9 @@ import Foundation
@Observable
@MainActor
final class FeishuSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
var appID: String = ""
var appSecret: String = ""
var domain: String = "lark"
@@ -19,7 +22,7 @@ final class FeishuSetupViewModel {
let connectionOptions = ["websocket", "webhook"]
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
appID = env["FEISHU_APP_ID"] ?? ""
appSecret = env["FEISHU_APP_SECRET"] ?? ""
domain = env["FEISHU_DOMAIN"] ?? "lark"
@@ -39,7 +42,7 @@ final class FeishuSetupViewModel {
"FEISHU_ALLOWED_USERS": allowedUsers,
"FEISHU_CONNECTION_MODE": connectionMode == "websocket" ? "" : connectionMode
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: [:])
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: [:])
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/HomeAssistantSetupViewModel.swift
+10 -4
View File
@@ -15,6 +15,12 @@ import AppKit
@Observable
@MainActor
final class HomeAssistantSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) {
self.context = context
}
var url: String = "http://homeassistant.local:8123"
var token: String = ""
@@ -30,11 +36,11 @@ final class HomeAssistantSetupViewModel {
var message: String?
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
url = env["HASS_URL"] ?? "http://homeassistant.local:8123"
token = env["HASS_TOKEN"] ?? ""
let cfg = HermesFileService().loadConfig().homeAssistant
let cfg = HermesFileService(context: context).loadConfig().homeAssistant
watchAll = cfg.watchAll
cooldownSeconds = cfg.cooldownSeconds
watchDomains = cfg.watchDomains
@@ -53,7 +59,7 @@ final class HomeAssistantSetupViewModel {
"platforms.homeassistant.extra.watch_all": PlatformSetupHelpers.envBool(watchAll),
"platforms.homeassistant.extra.cooldown_seconds": String(cooldownSeconds)
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: configKV)
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: configKV)
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
@@ -62,6 +68,6 @@ final class HomeAssistantSetupViewModel {
/// Open config.yaml in the user's default editor so they can manually edit
/// the list-valued filter fields.
func openConfigForLists() {
NSWorkspace.shared.open(URL(fileURLWithPath: HermesPaths.configYAML))
context.openInLocalEditor(context.paths.configYAML)
}
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/IMessageSetupViewModel.swift
+5 -2
View File
@@ -6,6 +6,9 @@ import Foundation
@Observable
@MainActor
final class IMessageSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
var serverURL: String = ""
var password: String = ""
var webhookHost: String = "127.0.0.1"
@@ -19,7 +22,7 @@ final class IMessageSetupViewModel {
var message: String?
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
serverURL = env["BLUEBUBBLES_SERVER_URL"] ?? ""
password = env["BLUEBUBBLES_PASSWORD"] ?? ""
webhookHost = env["BLUEBUBBLES_WEBHOOK_HOST"] ?? "127.0.0.1"
@@ -43,7 +46,7 @@ final class IMessageSetupViewModel {
"BLUEBUBBLES_ALLOW_ALL_USERS": allowAllUsers ? "true" : "",
"BLUEBUBBLES_SEND_READ_RECEIPTS": sendReadReceipts ? "true" : ""
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: [:])
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: [:])
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/MatrixSetupViewModel.swift
+6 -3
View File
@@ -5,6 +5,9 @@ import Foundation
@Observable
@MainActor
final class MatrixSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
var homeserver: String = ""
var accessToken: String = "" // preferred
var userID: String = ""
@@ -22,7 +25,7 @@ final class MatrixSetupViewModel {
var message: String?
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
homeserver = env["MATRIX_HOMESERVER"] ?? ""
accessToken = env["MATRIX_ACCESS_TOKEN"] ?? ""
userID = env["MATRIX_USER_ID"] ?? ""
@@ -32,7 +35,7 @@ final class MatrixSetupViewModel {
recoveryKey = env["MATRIX_RECOVERY_KEY"] ?? ""
encryption = PlatformSetupHelpers.parseEnvBool(env["MATRIX_ENCRYPTION"])
let cfg = HermesFileService().loadConfig().matrix
let cfg = HermesFileService(context: context).loadConfig().matrix
requireMention = cfg.requireMention
autoThread = cfg.autoThread
dmMentionThreads = cfg.dmMentionThreads
@@ -54,7 +57,7 @@ final class MatrixSetupViewModel {
"matrix.auto_thread": PlatformSetupHelpers.envBool(autoThread),
"matrix.dm_mention_threads": PlatformSetupHelpers.envBool(dmMentionThreads)
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: configKV)
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: configKV)
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/MattermostSetupViewModel.swift
+6 -3
View File
@@ -5,6 +5,9 @@ import Foundation
@Observable
@MainActor
final class MattermostSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
var serverURL: String = ""
var token: String = ""
var allowedUsers: String = ""
@@ -18,7 +21,7 @@ final class MattermostSetupViewModel {
let replyModeOptions = ["off", "thread"]
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
serverURL = env["MATTERMOST_URL"] ?? ""
token = env["MATTERMOST_TOKEN"] ?? ""
allowedUsers = env["MATTERMOST_ALLOWED_USERS"] ?? ""
@@ -26,7 +29,7 @@ final class MattermostSetupViewModel {
freeResponseChannels = env["MATTERMOST_FREE_RESPONSE_CHANNELS"] ?? ""
replyMode = env["MATTERMOST_REPLY_MODE"] ?? "off"
let cfg = HermesFileService().loadConfig().mattermost
let cfg = HermesFileService(context: context).loadConfig().mattermost
requireMention = cfg.requireMention
}
@@ -40,7 +43,7 @@ final class MattermostSetupViewModel {
"MATTERMOST_REPLY_MODE": replyMode == "off" ? "" : replyMode,
"MATTERMOST_REQUIRE_MENTION": PlatformSetupHelpers.envBool(requireMention)
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: [:])
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: [:])
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/PlatformSetupHelpers.swift
+12 -9
View File
@@ -15,10 +15,11 @@ import os
@MainActor
enum PlatformSetupHelpers {
static let logger = Logger(subsystem: "com.scarf", category: "PlatformSetup")
static let envService = HermesEnvService()
/// Apply a form save in one atomic batch.
/// Apply a form save in one atomic batch against a specific server.
///
/// - `context`: the server whose `.env` and `config.yaml` we're writing.
/// Local goes through `LocalTransport`; remote rounds through ssh+scp.
/// - `envPairs`: values to write into `.env`. Empty strings trigger `unset()`
/// (commenting the line out) rather than storing a literal empty value.
/// - `configKV`: scalar config.yaml paths to set via `hermes config set`.
@@ -27,7 +28,9 @@ enum PlatformSetupHelpers {
///
/// Returns a user-facing summary message.
@discardableResult
static func saveForm(envPairs: [String: String], configKV: [String: String]) -> String {
static func saveForm(context: ServerContext, envPairs: [String: String], configKV: [String: String]) -> String {
let envService = HermesEnvService(context: context)
// Split env pairs into set vs. unset.
var toSet: [String: String] = [:]
var toUnset: [String] = []
@@ -49,7 +52,7 @@ enum PlatformSetupHelpers {
var configFailures: [String] = []
for (key, value) in configKV {
let result = runHermesCLI(args: ["config", "set", key, value])
let result = runHermesCLI(context: context, args: ["config", "set", key, value])
if result.exitCode != 0 {
configFailures.append(key)
logger.warning("hermes config set \(key) failed: \(result.output)")
@@ -61,11 +64,11 @@ enum PlatformSetupHelpers {
return "Saved — restart gateway to apply"
}
/// Synchronous hermes CLI invocation. Use only for fast commands like
/// `config set`; longer commands should use `HermesFileService.runHermesCLI`
/// from a `Task.detached`.
static func runHermesCLI(args: [String], timeout: TimeInterval = 15) -> (exitCode: Int32, output: String) {
HermesFileService().runHermesCLI(args: args, timeout: timeout)
/// Synchronous hermes CLI invocation against the given server. Use only
/// for fast commands like `config set`; longer commands should use
/// `HermesFileService.runHermesCLI` from a `Task.detached`.
static func runHermesCLI(context: ServerContext, args: [String], timeout: TimeInterval = 15) -> (exitCode: Int32, output: String) {
HermesFileService(context: context).runHermesCLI(args: args, timeout: timeout)
}
/// Ask the user's default browser to open a URL (typically a hermes doc page
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/SignalSetupViewModel.swift
+5 -2
View File
@@ -9,6 +9,9 @@ import Foundation
@Observable
@MainActor
final class SignalSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
var httpURL: String = "http://127.0.0.1:8080"
var account: String = "" // E.164 phone, e.g. +15551234567
var allowedUsers: String = ""
@@ -29,7 +32,7 @@ final class SignalSetupViewModel {
}
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
httpURL = env["SIGNAL_HTTP_URL"] ?? "http://127.0.0.1:8080"
account = env["SIGNAL_ACCOUNT"] ?? ""
allowedUsers = env["SIGNAL_ALLOWED_USERS"] ?? ""
@@ -60,7 +63,7 @@ final class SignalSetupViewModel {
"SIGNAL_HOME_CHANNEL": homeChannel,
"SIGNAL_ALLOW_ALL_USERS": allowAllUsers ? "true" : ""
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: [:])
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: [:])
clearMessageAfterDelay()
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/SlackSetupViewModel.swift
+6 -3
View File
@@ -5,6 +5,9 @@ import Foundation
@Observable
@MainActor
final class SlackSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
var botToken: String = "" // xoxb-...
var appToken: String = "" // xapp-...
var allowedUsers: String = ""
@@ -21,14 +24,14 @@ final class SlackSetupViewModel {
let replyToModeOptions = ["off", "first", "all"]
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
botToken = env["SLACK_BOT_TOKEN"] ?? ""
appToken = env["SLACK_APP_TOKEN"] ?? ""
allowedUsers = env["SLACK_ALLOWED_USERS"] ?? ""
homeChannel = env["SLACK_HOME_CHANNEL"] ?? ""
homeChannelName = env["SLACK_HOME_CHANNEL_NAME"] ?? ""
let cfg = HermesFileService().loadConfig().slack
let cfg = HermesFileService(context: context).loadConfig().slack
replyToMode = cfg.replyToMode
requireMention = cfg.requireMention
replyInThread = cfg.replyInThread
@@ -50,7 +53,7 @@ final class SlackSetupViewModel {
"platforms.slack.extra.reply_in_thread": PlatformSetupHelpers.envBool(replyInThread),
"platforms.slack.extra.reply_broadcast": PlatformSetupHelpers.envBool(replyBroadcast)
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: configKV)
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: configKV)
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/TelegramSetupViewModel.swift
+6 -3
View File
@@ -8,6 +8,9 @@ import os
@Observable
@MainActor
final class TelegramSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
// Required
var botToken: String = ""
var allowedUsers: String = ""
@@ -23,7 +26,7 @@ final class TelegramSetupViewModel {
var message: String?
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
botToken = env["TELEGRAM_BOT_TOKEN"] ?? ""
allowedUsers = env["TELEGRAM_ALLOWED_USERS"] ?? ""
homeChannel = env["TELEGRAM_HOME_CHANNEL"] ?? ""
@@ -31,7 +34,7 @@ final class TelegramSetupViewModel {
webhookPort = env["TELEGRAM_WEBHOOK_PORT"] ?? ""
webhookSecret = env["TELEGRAM_WEBHOOK_SECRET"] ?? ""
let cfg = HermesFileService().loadConfig()
let cfg = HermesFileService(context: context).loadConfig()
requireMention = cfg.telegram.requireMention
reactions = cfg.telegram.reactions
}
@@ -49,7 +52,7 @@ final class TelegramSetupViewModel {
"telegram.require_mention": PlatformSetupHelpers.envBool(requireMention),
"telegram.reactions": PlatformSetupHelpers.envBool(reactions)
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: configKV)
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: configKV)
clearMessageAfterDelay()
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/WebhookSetupViewModel.swift
+5 -2
View File
@@ -7,6 +7,9 @@ import Foundation
@Observable
@MainActor
final class WebhookSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) { self.context = context }
var enabled: Bool = false
var port: String = "8644"
var secret: String = ""
@@ -14,7 +17,7 @@ final class WebhookSetupViewModel {
var message: String?
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
enabled = PlatformSetupHelpers.parseEnvBool(env["WEBHOOK_ENABLED"])
port = env["WEBHOOK_PORT"] ?? "8644"
secret = env["WEBHOOK_SECRET"] ?? ""
@@ -26,7 +29,7 @@ final class WebhookSetupViewModel {
"WEBHOOK_PORT": port,
"WEBHOOK_SECRET": secret
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: [:])
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: [:])
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
self?.message = nil
}
scarf/scarf/Features/Platforms/ViewModels/PlatformSetup/WhatsAppSetupViewModel.swift
+10 -4
View File
@@ -8,6 +8,12 @@ import Foundation
@Observable
@MainActor
final class WhatsAppSetupViewModel {
let context: ServerContext
init(context: ServerContext = .local) {
self.context = context
}
var enabled: Bool = false
var mode: String = "bot" // "bot" | "self-chat"
var allowedUsers: String = "" // Comma-separated phone numbers (no +)
@@ -27,7 +33,7 @@ final class WhatsAppSetupViewModel {
var pairingInProgress: Bool = false
func load() {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
enabled = PlatformSetupHelpers.parseEnvBool(env["WHATSAPP_ENABLED"])
mode = env["WHATSAPP_MODE"] ?? "bot"
allowedUsers = env["WHATSAPP_ALLOWED_USERS"] ?? ""
@@ -40,7 +46,7 @@ final class WhatsAppSetupViewModel {
allowedUsers = ""
}
let cfg = HermesFileService().loadConfig().whatsapp
let cfg = HermesFileService(context: context).loadConfig().whatsapp
unauthorizedDMBehavior = cfg.unauthorizedDMBehavior
replyPrefix = cfg.replyPrefix
}
@@ -57,7 +63,7 @@ final class WhatsAppSetupViewModel {
"whatsapp.unauthorized_dm_behavior": unauthorizedDMBehavior,
"whatsapp.reply_prefix": replyPrefix
]
message = PlatformSetupHelpers.saveForm(envPairs: envPairs, configKV: configKV)
message = PlatformSetupHelpers.saveForm(context: context, envPairs: envPairs, configKV: configKV)
clearMessageAfterDelay()
}
@@ -72,7 +78,7 @@ final class WhatsAppSetupViewModel {
self?.clearMessageAfterDelay()
}
terminalController.start(
executable: HermesPaths.hermesBinary,
executable: context.paths.hermesBinary,
arguments: ["whatsapp"]
)
}
scarf/scarf/Features/Platforms/ViewModels/PlatformsViewModel.swift
+10 -3
View File
@@ -9,7 +9,14 @@ import os
@MainActor
final class PlatformsViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "PlatformsViewModel")
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var gatewayState: GatewayState?
var selected: HermesToolPlatform = KnownPlatforms.cli
@@ -41,14 +48,14 @@ final class PlatformsViewModel {
/// until the first YAML edit.
func hasConfigBlock(for platform: HermesToolPlatform) -> Bool {
if platform.name == "cli" { return true }
let yaml = (try? String(contentsOfFile: HermesPaths.configYAML, encoding: .utf8)) ?? ""
let yaml = context.readText(context.paths.configYAML) ?? ""
for line in yaml.components(separatedBy: "\n") where !line.hasPrefix(" ") && !line.hasPrefix("\t") {
if line.trimmingCharacters(in: .whitespaces) == "\(platform.name):" { return true }
}
// Env-var fallback: any identifying env var for this platform counts
// as "configured". Uses the shared `identifyingEnvVar(for:)` mapping.
if let key = Self.identifyingEnvVar(for: platform.name) {
let env = HermesEnvService().load()
let env = HermesEnvService(context: context).load()
if let value = env[key], !value.isEmpty { return true }
}
return false
scarf/scarf/Features/Platforms/Views/PlatformSetup/DiscordSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct DiscordSetupView: View {
@State private var viewModel = DiscordSetupViewModel()
@State private var viewModel: DiscordSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: DiscordSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/EmailSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct EmailSetupView: View {
@State private var viewModel = EmailSetupViewModel()
@State private var viewModel: EmailSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: EmailSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/FeishuSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct FeishuSetupView: View {
@State private var viewModel = FeishuSetupViewModel()
@State private var viewModel: FeishuSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: FeishuSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/HomeAssistantSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct HomeAssistantSetupView: View {
@State private var viewModel = HomeAssistantSetupViewModel()
@State private var viewModel: HomeAssistantSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: HomeAssistantSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/IMessageSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct IMessageSetupView: View {
@State private var viewModel = IMessageSetupViewModel()
@State private var viewModel: IMessageSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: IMessageSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/MatrixSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct MatrixSetupView: View {
@State private var viewModel = MatrixSetupViewModel()
@State private var viewModel: MatrixSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: MatrixSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/MattermostSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct MattermostSetupView: View {
@State private var viewModel = MattermostSetupViewModel()
@State private var viewModel: MattermostSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: MattermostSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/SignalSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct SignalSetupView: View {
@State private var viewModel = SignalSetupViewModel()
@State private var viewModel: SignalSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: SignalSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/SlackSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct SlackSetupView: View {
@State private var viewModel = SlackSetupViewModel()
@State private var viewModel: SlackSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: SlackSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/TelegramSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct TelegramSetupView: View {
@State private var viewModel = TelegramSetupViewModel()
@State private var viewModel: TelegramSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: TelegramSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/WebhookSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct WebhookSetupView: View {
@State private var viewModel = WebhookSetupViewModel()
@State private var viewModel: WebhookSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: WebhookSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformSetup/WhatsAppSetupView.swift
+3 -1
View File
@@ -1,7 +1,9 @@
import SwiftUI
struct WhatsAppSetupView: View {
@State private var viewModel = WhatsAppSetupViewModel()
@State private var viewModel: WhatsAppSetupViewModel
init(context: ServerContext) { _viewModel = State(initialValue: WhatsAppSetupViewModel(context: context)) }
var body: some View {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Platforms/Views/PlatformsView.swift
+21 -14
View File
@@ -1,9 +1,14 @@
import SwiftUI
struct PlatformsView: View {
@State private var viewModel = PlatformsViewModel()
@State private var viewModel: PlatformsViewModel
@Environment(HermesFileWatcher.self) private var fileWatcher
init(context: ServerContext) {
_viewModel = State(initialValue: PlatformsViewModel(context: context))
}
// HSplitView (not nested NavigationSplitView) because ContentView already
// hosts the outer NavigationSplitView — nesting them breaks layout on macOS.
var body: some View {
@@ -114,23 +119,25 @@ struct PlatformsView: View {
/// Dispatch to the right per-platform setup view based on the selection.
/// Each setup view owns its own `@State` view model and handles load/save
/// independently; we don't push state down from this container.
/// independently; the parent's `context` is forwarded so writes go to the
/// right server.
@ViewBuilder
private var platformForm: some View {
let ctx = viewModel.context
switch viewModel.selected.name {
case "cli": cliPanel
case "telegram": TelegramSetupView()
case "discord": DiscordSetupView()
case "slack": SlackSetupView()
case "whatsapp": WhatsAppSetupView()
case "signal": SignalSetupView()
case "email": EmailSetupView()
case "matrix": MatrixSetupView()
case "mattermost": MattermostSetupView()
case "feishu": FeishuSetupView()
case "imessage": IMessageSetupView()
case "homeassistant": HomeAssistantSetupView()
case "webhook": WebhookSetupView()
case "telegram": TelegramSetupView(context: ctx)
case "discord": DiscordSetupView(context: ctx)
case "slack": SlackSetupView(context: ctx)
case "whatsapp": WhatsAppSetupView(context: ctx)
case "signal": SignalSetupView(context: ctx)
case "email": EmailSetupView(context: ctx)
case "matrix": MatrixSetupView(context: ctx)
case "mattermost": MattermostSetupView(context: ctx)
case "feishu": FeishuSetupView(context: ctx)
case "imessage": IMessageSetupView(context: ctx)
case "homeassistant": HomeAssistantSetupView(context: ctx)
case "webhook": WebhookSetupView(context: ctx)
default:
SettingsSection(title: viewModel.selected.displayName, icon: KnownPlatforms.icon(for: viewModel.selected.name)) {
ReadOnlyRow(label: "Setup", value: "No setup form for this platform yet.")
scarf/scarf/Features/Plugins/ViewModels/PluginsViewModel.swift
+50 -32
View File
@@ -13,59 +13,73 @@ struct HermesPlugin: Identifiable, Sendable, Equatable {
@Observable
final class PluginsViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "PluginsViewModel")
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var plugins: [HermesPlugin] = []
var isLoading = false
var message: String?
private var pluginsDir: String { HermesPaths.home + "/plugins" }
private var pluginsDir: String { context.paths.pluginsDir }
/// Source of truth is the `~/.hermes/plugins/` directory. Each plugin is a
/// subdirectory — we read its `plugin.json` (if present) for source/version
/// metadata. Parsing `hermes plugins list` box-drawn output is fragile.
func load() {
isLoading = true
defer { isLoading = false }
let fm = FileManager.default
guard let entries = try? fm.contentsOfDirectory(atPath: pluginsDir) else {
plugins = []
return
let dir = pluginsDir
let ctx = context
// listDirectory + (stat × N entries) + (readManifest × N) is a lot
// of sync transport ops on remote — definitively a beach ball if
// run on main. Detach the whole walk.
Task.detached { [weak self] in
// Build `result` as an immutable before the MainActor hop, so the
// cross-closure capture is a value, not a mutated `var` (Swift 6
// concurrent-capture rule).
let result: [HermesPlugin] = {
let transport = ctx.makeTransport()
var out: [HermesPlugin] = []
if let entries = try? transport.listDirectory(dir) {
for entry in entries.sorted() where !entry.hasPrefix(".") {
let path = dir + "/" + entry
guard transport.stat(path)?.isDirectory == true else { continue }
let manifest = Self.readManifestStatic(path: path, context: ctx)
let disabled = transport.fileExists(path + "/.disabled")
out.append(HermesPlugin(
name: entry,
source: manifest.source,
enabled: !disabled,
version: manifest.version,
path: path
))
}
}
return out
}()
await MainActor.run { [weak self] in
self?.plugins = result
self?.isLoading = false
}
}
var result: [HermesPlugin] = []
for entry in entries.sorted() where !entry.hasPrefix(".") {
let path = pluginsDir + "/" + entry
var isDir: ObjCBool = false
guard fm.fileExists(atPath: path, isDirectory: &isDir), isDir.boolValue else { continue }
let manifest = Self.readManifest(path: path)
let disabled = fm.fileExists(atPath: path + "/.disabled")
result.append(HermesPlugin(
name: entry,
source: manifest.source,
enabled: !disabled,
version: manifest.version,
path: path
))
}
plugins = result
}
/// Best-effort manifest read. Supports both plugin.json and plugin.yaml shapes.
private static func readManifest(path: String) -> (source: String, version: String) {
let fm = FileManager.default
/// Static form of readManifest used by the detached load task. The
/// instance form delegates to this so both call paths share logic.
nonisolated fileprivate static func readManifestStatic(path: String, context: ServerContext) -> (source: String, version: String) {
let jsonPath = path + "/plugin.json"
if fm.fileExists(atPath: jsonPath),
let data = try? Data(contentsOf: URL(fileURLWithPath: jsonPath)),
if let data = context.readData(jsonPath),
let obj = try? JSONSerialization.jsonObject(with: data) as? [String: Any] {
let source = (obj["source"] as? String) ?? (obj["repository"] as? String) ?? (obj["url"] as? String) ?? ""
let version = (obj["version"] as? String) ?? ""
return (source, version)
}
let yamlPath = path + "/plugin.yaml"
if fm.fileExists(atPath: yamlPath),
let yaml = try? String(contentsOfFile: yamlPath, encoding: .utf8) {
if let yaml = context.readText(yamlPath) {
let parsed = HermesFileService.parseNestedYAML(yaml)
let source = HermesFileService.stripYAMLQuotes(parsed.values["source"] ?? parsed.values["repository"] ?? parsed.values["url"] ?? "")
let version = HermesFileService.stripYAMLQuotes(parsed.values["version"] ?? "")
@@ -74,6 +88,10 @@ final class PluginsViewModel {
return ("", "")
}
// (readManifestStatic above is the new implementation; the instance
// version was removed because the only caller was the load() walk,
// which now runs detached and uses the static form.)
func install(_ identifier: String) {
isLoading = true
message = "Installing \(identifier)…"
scarf/scarf/Features/Plugins/Views/PluginsView.swift
+11 -1
View File
@@ -1,11 +1,16 @@
import SwiftUI
struct PluginsView: View {
@State private var viewModel = PluginsViewModel()
@State private var viewModel: PluginsViewModel
@State private var installIdentifier = ""
@State private var showInstall = false
@State private var pendingRemove: HermesPlugin?
init(context: ServerContext) {
_viewModel = State(initialValue: PluginsViewModel(context: context))
}
var body: some View {
VStack(spacing: 0) {
header
@@ -19,6 +24,11 @@ struct PluginsView: View {
}
}
.navigationTitle("Plugins")
.loadingOverlay(
viewModel.isLoading,
label: "Loading plugins…",
isEmpty: viewModel.plugins.isEmpty
)
.onAppear { viewModel.load() }
.sheet(isPresented: $showInstall) { installSheet }
.confirmationDialog(
scarf/scarf/Features/Profiles/ViewModels/ProfilesViewModel.swift
+8 -1
View File
@@ -11,7 +11,14 @@ struct HermesProfile: Identifiable, Sendable, Equatable {
@Observable
final class ProfilesViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "ProfilesViewModel")
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var profiles: [HermesProfile] = []
var activeName: String = "default"
scarf/scarf/Features/Profiles/Views/ProfilesView.swift
+6 -1
View File
@@ -3,13 +3,18 @@ import AppKit
import UniformTypeIdentifiers
struct ProfilesView: View {
@State private var viewModel = ProfilesViewModel()
@State private var viewModel: ProfilesViewModel
@State private var selected: HermesProfile?
@State private var showCreate = false
@State private var createName = ""
@State private var createCloneConfig = true
@State private var createCloneAll = false
@State private var showRename = false
init(context: ServerContext) {
_viewModel = State(initialValue: ProfilesViewModel(context: context))
}
@State private var renameTarget: HermesProfile?
@State private var renameNewName = ""
@State private var pendingDelete: HermesProfile?
scarf/scarf/Features/Projects/ViewModels/ProjectsViewModel.swift
+8 -1
View File
@@ -2,7 +2,14 @@ import Foundation
@Observable
final class ProjectsViewModel {
private let service = ProjectDashboardService()
let context: ServerContext
private let service: ProjectDashboardService
init(context: ServerContext = .local) {
self.context = context
self.service = ProjectDashboardService(context: context)
}
var projects: [ProjectEntry] = []
var selectedProject: ProjectEntry?
scarf/scarf/Features/Projects/Views/ProjectsView.swift
+10 -2
View File
@@ -6,10 +6,15 @@ private enum DashboardTab: String, CaseIterable {
}
struct ProjectsView: View {
@State private var viewModel = ProjectsViewModel()
@State private var viewModel: ProjectsViewModel
@Environment(AppCoordinator.self) private var coordinator
@Environment(HermesFileWatcher.self) private var fileWatcher
@State private var showingAddSheet = false
init(context: ServerContext) {
_viewModel = State(initialValue: ProjectsViewModel(context: context))
}
@State private var selectedTab: DashboardTab = .dashboard
var body: some View {
@@ -209,7 +214,10 @@ struct ProjectsView: View {
}
private func openInFinder(_ path: String) {
NSWorkspace.shared.open(URL(fileURLWithPath: path))
// Project paths come from the registry on the active server. For
// remote, the path is on that machine's filesystem and can't be
// shown in this Mac's Finder — no-op via the helper.
viewModel.context.openInLocalEditor(path)
}
}
scarf/scarf/Features/QuickCommands/ViewModels/QuickCommandsViewModel.swift
+29 -35
View File
@@ -13,31 +13,39 @@ struct HermesQuickCommand: Identifiable, Sendable, Equatable {
@Observable
final class QuickCommandsViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "QuickCommandsViewModel")
let context: ServerContext
init(context: ServerContext = .local) {
self.context = context
}
var commands: [HermesQuickCommand] = []
var message: String?
func load() {
guard let yaml = try? String(contentsOfFile: HermesPaths.configYAML, encoding: .utf8) else {
commands = []
return
let ctx = context
Task.detached { [weak self] in
let yaml = ctx.readText(ctx.paths.configYAML)
let result: [HermesQuickCommand] = {
guard let yaml else { return [] }
let parsed = HermesFileService.parseNestedYAML(yaml)
var byName: [String: (type: String, command: String)] = [:]
for (key, value) in parsed.values where key.hasPrefix("quick_commands.") {
let parts = key.split(separator: ".", maxSplits: 2, omittingEmptySubsequences: false)
guard parts.count == 3 else { continue }
let name = String(parts[1])
let field = String(parts[2])
var existing = byName[name] ?? (type: "exec", command: "")
let stripped = HermesFileService.stripYAMLQuotes(value)
if field == "type" { existing.type = stripped }
if field == "command" { existing.command = stripped }
byName[name] = existing
}
return byName.map { HermesQuickCommand(name: $0.key, type: $0.value.type, command: $0.value.command) }
.sorted { $0.name < $1.name }
}()
await MainActor.run { [weak self] in self?.commands = result }
}
let parsed = HermesFileService.parseNestedYAML(yaml)
// Each quick command is `quick_commands.<name>.type` + `quick_commands.<name>.command`.
var byName: [String: (type: String, command: String)] = [:]
for (key, value) in parsed.values where key.hasPrefix("quick_commands.") {
let parts = key.split(separator: ".", maxSplits: 2, omittingEmptySubsequences: false)
guard parts.count == 3 else { continue }
let name = String(parts[1])
let field = String(parts[2])
var existing = byName[name] ?? (type: "exec", command: "")
let stripped = HermesFileService.stripYAMLQuotes(value)
if field == "type" { existing.type = stripped }
if field == "command" { existing.command = stripped }
byName[name] = existing
}
commands = byName.map { HermesQuickCommand(name: $0.key, type: $0.value.type, command: $0.value.command) }
.sorted { $0.name < $1.name }
}
/// Check for obviously destructive shell strings. Display-only; we do not block.
@@ -70,25 +78,11 @@ final class QuickCommandsViewModel {
/// Removal requires editing config.yaml directly — `hermes config set` has no
/// unset for nested keys. Open the file in the editor for manual removal.
func openConfigForRemoval() {
NSWorkspace.shared.open(URL(fileURLWithPath: HermesPaths.configYAML))
context.openInLocalEditor(context.paths.configYAML)
}
@discardableResult
private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
let process = Process()
process.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
process.arguments = arguments
process.environment = HermesFileService.enrichedEnvironment()
let pipe = Pipe()
process.standardOutput = pipe
process.standardError = Pipe()
do {
try process.run()
process.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
return (String(data: data, encoding: .utf8) ?? "", process.terminationStatus)
} catch {
return ("", -1)
}
context.runHermes(arguments)
}
}
scarf/scarf/Features/QuickCommands/Views/QuickCommandsView.swift
+6 -1
View File
@@ -1,10 +1,15 @@
import SwiftUI
struct QuickCommandsView: View {
@State private var viewModel = QuickCommandsViewModel()
@State private var viewModel: QuickCommandsViewModel
@State private var showAddSheet = false
@State private var editTarget: HermesQuickCommand?
init(context: ServerContext) {
_viewModel = State(initialValue: QuickCommandsViewModel(context: context))
}
var body: some View {
ScrollView {
VStack(alignment: .leading, spacing: 16) {
scarf/scarf/Features/Servers/ViewModels/AddServerViewModel.swift
+110
View File
@@ -0,0 +1,110 @@
import Foundation
import AppKit
/// Drives the Add Server sheet. Exposed state maps 1:1 to form fields, plus
/// a reachability test that runs `ssh host 'command -v hermes && ls .hermes/state.db'`
/// and surfaces stderr inline on failure.
@Observable
@MainActor
final class AddServerViewModel {
/// Name shown in the server picker (defaults to host if the user leaves
/// it blank).
var displayName: String = ""
var host: String = ""
var user: String = ""
var port: String = ""
var identityFile: String = ""
/// Override for `~/.hermes` on the remote. Empty = default.
var remoteHome: String = ""
var isTesting: Bool = false
/// Outcome of the most recent Test Connection run. `nil` = not yet run.
var testResult: TestResult?
enum TestResult: Equatable {
case success(hermesPath: String, dbFound: Bool)
/// `command` is the full ssh invocation we attempted (so the user can
/// paste it into Terminal to see what their shell does with it).
/// `stderr` is whatever ssh / the remote shell wrote to stderr.
case failure(message: String, stderr: String, command: String)
}
/// The config the form currently represents — built on demand, not
/// persisted until the user clicks Save.
var draftConfig: SSHConfig {
SSHConfig(
host: host.trimmingCharacters(in: .whitespaces),
user: nonEmpty(user),
port: Int(port),
identityFile: nonEmpty(identityFile),
remoteHome: nonEmpty(remoteHome),
hermesBinaryHint: nil
)
}
/// Hostname or alias is the only required field; everything else
/// defaults to `~/.ssh/config` / ssh-agent.
var canSave: Bool {
!host.trimmingCharacters(in: .whitespaces).isEmpty
}
var resolvedDisplayName: String {
let trimmed = displayName.trimmingCharacters(in: .whitespaces)
if !trimmed.isEmpty { return trimmed }
return host.trimmingCharacters(in: .whitespaces)
}
// MARK: - Identity file picker
func pickIdentityFile() {
let panel = NSOpenPanel()
panel.message = "Choose an SSH private key"
panel.canChooseFiles = true
panel.canChooseDirectories = false
panel.allowsMultipleSelection = false
// Default to ~/.ssh so users land in the right place.
if let sshDir = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask).first?
.deletingLastPathComponent().appendingPathComponent(".ssh", isDirectory: true) {
panel.directoryURL = sshDir
}
if panel.runModal() == .OK, let url = panel.url {
identityFile = url.path
}
}
// MARK: - Test Connection
/// Run a single ssh round-trip to verify auth + discover the remote
/// hermes binary. Populates `testResult` with either a success (so the
/// user knows the binary was found and the DB is readable) or a
/// failure with stderr for debugging.
///
/// Uses `ssh -v` for the test probe so we capture the full handshake
/// trace — even if auth fails before the remote shell starts, ssh's
/// own diagnostic output gives the user (and us) something to act on.
func testConnection() async {
isTesting = true
defer { isTesting = false }
let config = draftConfig
let probe = TestConnectionProbe(config: config)
testResult = await probe.run()
}
/// If the test succeeded, we prefer to save the probed binary path into
/// `hermesBinaryHint` so subsequent calls don't need to re-resolve it.
func configForSave() -> SSHConfig {
var cfg = draftConfig
if case .success(let path, _) = testResult {
cfg.hermesBinaryHint = path
}
return cfg
}
// MARK: - Helpers
private func nonEmpty(_ s: String) -> String? {
let trimmed = s.trimmingCharacters(in: .whitespaces)
return trimmed.isEmpty ? nil : trimmed
}
}
scarf/scarf/Features/Servers/ViewModels/ConnectionStatusViewModel.swift
+127
View File
@@ -0,0 +1,127 @@
import Foundation
import os
/// Tracks connection health for the current window's server. Remote contexts
/// get a lightweight 15s heartbeat (a no-op `true` remote command) that
/// flips the status between green / yellow / red. Local contexts are always
/// green since there's no connection to lose.
@Observable
@MainActor
final class ConnectionStatusViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "ConnectionStatus")
enum Status: Equatable {
/// Healthy: most recent probe succeeded.
case connected
/// No probe yet or the previous probe timed out but we haven't
/// confirmed failure. Shown as yellow to tell the user "checking…".
case idle
/// Last probe failed. `message` is a terse human summary; `stderr`
/// is the raw diagnostic text for a disclosure panel.
case error(message: String, stderr: String)
}
private(set) var status: Status = .idle
/// Timestamp of the last successful probe. Used by the UI to show how
/// fresh the status indicator is ("just now", "2m ago"…).
private(set) var lastSuccess: Date?
/// Number of consecutive probe failures. Surfaced as a yellow "Reconnecting…"
/// state for the first failure (silent retry), then promoted to red after
/// `consecutiveFailureThreshold` failures so flaky connections don't
/// flap the indicator on every dropped packet.
private(set) var consecutiveFailures = 0
private let consecutiveFailureThreshold = 2
let context: ServerContext
private let transport: any ServerTransport
private var probeTask: Task<Void, Never>?
init(context: ServerContext) {
self.context = context
self.transport = context.makeTransport()
if !context.isRemote {
// Local contexts are always considered connected — no network
// or auth can fail.
self.status = .connected
self.lastSuccess = Date()
}
}
/// Kick off a background heartbeat loop. Safe to call multiple times;
/// subsequent calls cancel the prior task and restart.
func startMonitoring() {
guard context.isRemote else { return }
probeTask?.cancel()
probeTask = Task { [weak self] in
while !Task.isCancelled {
await self?.probeOnce()
try? await Task.sleep(nanoseconds: 15_000_000_000) // 15s
}
}
}
func stopMonitoring() {
probeTask?.cancel()
probeTask = nil
}
/// Manual probe — also invoked by the toolbar "Retry" button on error.
func retry() {
Task { await probeOnce() }
}
private func probeOnce() async {
let snapshot = transport
let result: Result<Void, TransportError>
// Transport IO on a detached task so we don't block MainActor.
result = await Task.detached {
do {
let probe = try snapshot.runProcess(
executable: "/bin/sh",
args: ["-c", "true"],
stdin: nil,
timeout: 10
)
if probe.exitCode == 0 {
return .success(())
}
return .failure(.commandFailed(exitCode: probe.exitCode, stderr: probe.stderrString))
} catch let e as TransportError {
return .failure(e)
} catch {
return .failure(.other(message: error.localizedDescription))
}
}.value
switch result {
case .success:
status = .connected
lastSuccess = Date()
consecutiveFailures = 0
case .failure(let err):
consecutiveFailures += 1
// First failure → silent yellow "Reconnecting…" while we try
// again on the next 15s tick. Only flip to red after we've
// failed `consecutiveFailureThreshold` times in a row, so a
// single dropped packet (laptop sleep/wake, transient WiFi)
// doesn't visually scare the user.
if consecutiveFailures < consecutiveFailureThreshold {
status = .idle
// Try again sooner than the regular tick — gives the
// typical "WiFi reconnected within 5s" case a chance to
// self-heal before the next 15s heartbeat.
Task { [weak self] in
try? await Task.sleep(nanoseconds: 3_000_000_000)
if self?.consecutiveFailures ?? 0 > 0 {
await self?.probeOnce()
}
}
} else {
status = .error(
message: err.errorDescription ?? "Unreachable",
stderr: err.diagnosticStderr
)
}
}
}
}
scarf/scarf/Features/Servers/ViewModels/TestConnectionProbe.swift
+179
View File
@@ -0,0 +1,179 @@
import Foundation
/// Bypasses `SSHTransport`'s normal terse-error path so the Add Server sheet
/// can show the user a full diagnostic on failure: the exact ssh command we
/// invoked, the verbose `ssh -v` handshake trace, and any remote shell
/// output. This is the difference between "Remote command exited 255" with
/// no further info, and "ssh said 'Permission denied (publickey)' on line N
/// of the trace, here's the command we ran, here's what was in your env".
struct TestConnectionProbe {
let config: SSHConfig
func run() async -> AddServerViewModel.TestResult {
let host = config.host.trimmingCharacters(in: .whitespaces)
guard !host.isEmpty else {
return .failure(message: "Host is empty", stderr: "", command: "")
}
// Same options SSHTransport uses, plus -v for verbose ssh trace.
// We deliberately skip ControlMaster here so the probe is a fresh
// connection — a stale control socket from a previous failed run
// shouldn't mask current state.
var sshArgs: [String] = [
"-v",
"-o", "ServerAliveInterval=30",
"-o", "ConnectTimeout=10",
"-o", "StrictHostKeyChecking=accept-new",
"-o", "BatchMode=yes",
"-o", "LogLevel=ERROR" // Errors only on stderr; -v puts handshake on stderr separately
]
if let port = config.port { sshArgs += ["-p", String(port)] }
if let id = config.identityFile, !id.isEmpty {
sshArgs += ["-i", id]
}
let hostSpec: String
if let user = config.user, !user.isEmpty { hostSpec = "\(user)@\(host)" }
else { hostSpec = host }
sshArgs.append(hostSpec)
sshArgs.append("--")
// Remote probe script. Tries three strategies in order:
// 1. `command -v hermes` against the bare non-interactive PATH —
// works if the user put their install location in ~/.zshenv.
// 2. Source common login rc files (.zprofile, .bash_profile,
// .profile) and re-probe — picks up PATH set in login shells.
// 3. Probe the well-known install candidates directly. Mirrors
// `HermesPathSet.hermesBinaryCandidates` so behavior matches
// Scarf's local resolution.
// The matched absolute path is stored as `hermesBinaryHint` on the
// SSHConfig so subsequent CLI/ACP invocations don't have to re-probe.
let script = #"""
hpath=$(command -v hermes 2>/dev/null)
if [ -z "$hpath" ]; then
for rc in "$HOME/.zshenv" "$HOME/.zprofile" "$HOME/.bash_profile" "$HOME/.profile"; do
[ -f "$rc" ] && . "$rc" 2>/dev/null
done
hpath=$(command -v hermes 2>/dev/null)
fi
if [ -z "$hpath" ]; then
for cand in "$HOME/.local/bin/hermes" "/opt/homebrew/bin/hermes" "/usr/local/bin/hermes" "$HOME/.hermes/bin/hermes"; do
if [ -x "$cand" ]; then hpath="$cand"; break; fi
done
fi
echo "HERMES:$hpath"
if [ -e "$HOME/.hermes/state.db" ]; then echo DB:ok; else echo DB:missing; fi
"""#
sshArgs.append("/bin/sh")
sshArgs.append("-c")
sshArgs.append(script)
// Build the displayable command string. Show exactly what `ssh ...`
// would look like in the user's terminal (with single-quoting for
// the script). Doesn't have to be byte-equivalent to what
// `Process` invokes — just a faithful reproduction the user can
// paste into Terminal to compare.
let displayCommand = "/usr/bin/ssh " + sshArgs.map { Self.shellDisplayQuote($0) }.joined(separator: " ")
let probe = await Task.detached { () -> (Int32, String, String) in
let proc = Process()
proc.executableURL = URL(fileURLWithPath: "/usr/bin/ssh")
proc.arguments = sshArgs
// Inherit shell-derived SSH_AUTH_SOCK so ssh can reach the agent.
// Without this, GUI-launched Scarf can't see the user's
// ssh-add'd keys (terminal works because shell sets the var).
var env = ProcessInfo.processInfo.environment
let shellEnv = HermesFileService.enrichedEnvironment()
for key in ["SSH_AUTH_SOCK", "SSH_AGENT_PID"] {
if env[key] == nil, let value = shellEnv[key], !value.isEmpty {
env[key] = value
}
}
proc.environment = env
let stdoutPipe = Pipe()
let stderrPipe = Pipe()
proc.standardOutput = stdoutPipe
proc.standardError = stderrPipe
do {
try proc.run()
} catch {
return (-1, "", "Failed to launch /usr/bin/ssh: \(error.localizedDescription)")
}
// Bound the probe so a hung connection doesn't lock the UI.
let deadline = Date().addingTimeInterval(20)
while proc.isRunning && Date() < deadline {
try? await Task.sleep(nanoseconds: 100_000_000)
}
if proc.isRunning {
proc.terminate()
let partial = (try? stderrPipe.fileHandleForReading.readToEnd()) ?? Data()
return (-1, "", "Timed out after 20s.\n\nssh trace so far:\n" + (String(data: partial, encoding: .utf8) ?? ""))
}
let out = (try? stdoutPipe.fileHandleForReading.readToEnd()) ?? Data()
let err = (try? stderrPipe.fileHandleForReading.readToEnd()) ?? Data()
return (
proc.terminationStatus,
String(data: out, encoding: .utf8) ?? "",
String(data: err, encoding: .utf8) ?? ""
)
}.value
let (exitCode, stdout, stderr) = probe
// Diagnostic envelope: always include the ssh command + the
// SSH_AUTH_SOCK presence at the top of the stderr blob so the
// user immediately sees whether agent inheritance worked.
let agentEnv = ProcessInfo.processInfo.environment["SSH_AUTH_SOCK"]
?? HermesFileService.enrichedEnvironment()["SSH_AUTH_SOCK"]
?? "(not set)"
let envSummary = "SSH_AUTH_SOCK = \(agentEnv)\n\n"
if exitCode == 0 {
let lines = stdout.split(separator: "\n").map(String.init)
let hermesPath = lines.first(where: { $0.hasPrefix("HERMES:") })?
.dropFirst("HERMES:".count).trimmingCharacters(in: .whitespaces) ?? ""
let dbFound = lines.contains(where: { $0 == "DB:ok" })
if hermesPath.isEmpty {
return .failure(
message: "hermes binary not found in remote $PATH",
stderr: envSummary + "Add hermes to the remote PATH (e.g. ~/.zshenv).\n\nRemote stdout:\n\(stdout)",
command: displayCommand
)
}
return .success(hermesPath: String(hermesPath), dbFound: dbFound)
}
// Classify common failures by scanning the stderr trace.
let lower = stderr.lowercased()
let summary: String
if lower.contains("permission denied") {
summary = "Permission denied — check that your key is loaded in ssh-agent (run `ssh-add -l` in Terminal) and that the remote accepts it."
} else if lower.contains("host key verification failed") {
summary = "Host key mismatch — run `ssh-keygen -R \(host)` in Terminal, then retry."
} else if lower.contains("connection refused") || lower.contains("no route to host") {
summary = "Can't reach the host — check the IP/network/firewall."
} else if lower.contains("could not resolve hostname") {
summary = "Hostname did not resolve."
} else if exitCode == 255 {
summary = "ssh failed (exit 255). See the trace below."
} else {
summary = "Remote command exited \(exitCode)."
}
return .failure(
message: summary,
stderr: envSummary + (stderr.isEmpty ? "(ssh produced no stderr — this usually means the process itself failed to start, the executable couldn't be located, or stdin/stdout was closed unexpectedly.)" : stderr),
command: displayCommand
)
}
/// Quote an argument for display in a copy-pasteable ssh command. Always
/// wraps in single quotes if it contains anything beyond a basic safe set
/// — visually noisier than minimal quoting but unambiguous.
private static func shellDisplayQuote(_ s: String) -> String {
if s.isEmpty { return "''" }
let safe = CharacterSet(charactersIn: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789@%+=:,./-_")
if s.unicodeScalars.allSatisfy({ safe.contains($0) }) { return s }
return "'" + s.replacingOccurrences(of: "'", with: "'\\''") + "'"
}
}
scarf/scarf/Features/Servers/Views/AddServerSheet.swift
+192
View File
@@ -0,0 +1,192 @@
import SwiftUI
/// Sheet for adding a new remote server. Collects SSH connection details,
/// runs a "Test Connection" probe, and — on save — hands the persisted
/// `SSHConfig` (with `hermesBinaryHint` populated by the probe) to the
/// caller via the `onSave` closure.
struct AddServerSheet: View {
@State private var viewModel = AddServerViewModel()
@Environment(\.dismiss) private var dismiss
/// Called when the user confirms. Caller persists via `ServerRegistry`
/// and typically switches the active window's context to the new server.
let onSave: (_ displayName: String, _ config: SSHConfig) -> Void
var body: some View {
VStack(alignment: .leading, spacing: 0) {
header
Divider()
ScrollView {
VStack(alignment: .leading, spacing: 16) {
connectionSection
Divider()
testSection
}
.padding(20)
}
Divider()
footer
}
.frame(width: 560, height: 680)
}
private var header: some View {
HStack {
Image(systemName: "server.rack")
.font(.title2)
Text("Add Remote Server")
.font(.headline)
Spacer()
}
.padding(.horizontal, 20)
.padding(.vertical, 12)
}
private var connectionSection: some View {
VStack(alignment: .leading, spacing: 10) {
Text("Connection")
.font(.subheadline).bold()
.foregroundStyle(.secondary)
LabeledField("Name") {
TextField("Optional — defaults to hostname", text: $viewModel.displayName)
.textFieldStyle(.roundedBorder)
}
LabeledField("Host") {
TextField("hermes.example.com or a ~/.ssh/config alias", text: $viewModel.host)
.textFieldStyle(.roundedBorder)
.autocorrectionDisabled()
}
LabeledField("User") {
TextField("Defaults to ~/.ssh/config or current user", text: $viewModel.user)
.textFieldStyle(.roundedBorder)
.autocorrectionDisabled()
}
LabeledField("Port") {
TextField("22", text: $viewModel.port)
.textFieldStyle(.roundedBorder)
.frame(width: 100)
Spacer()
}
LabeledField("Identity file") {
HStack(spacing: 8) {
TextField("ssh-agent (leave blank)", text: $viewModel.identityFile)
.textFieldStyle(.roundedBorder)
.autocorrectionDisabled()
Button("Choose…") { viewModel.pickIdentityFile() }
}
}
LabeledField("Remote ~/.hermes override") {
TextField("Leave blank for default", text: $viewModel.remoteHome)
.textFieldStyle(.roundedBorder)
.autocorrectionDisabled()
}
Text("Scarf uses ssh-agent for authentication. If your key has a passphrase, run `ssh-add` before connecting — Scarf never prompts for or stores passphrases.")
.font(.caption)
.foregroundStyle(.secondary)
.padding(.top, 4)
}
}
private var testSection: some View {
VStack(alignment: .leading, spacing: 8) {
HStack {
Text("Probe").font(.subheadline).bold().foregroundStyle(.secondary)
Spacer()
Button {
Task { await viewModel.testConnection() }
} label: {
if viewModel.isTesting {
ProgressView().controlSize(.small)
} else {
Text("Test Connection")
}
}
.disabled(viewModel.isTesting || !viewModel.canSave)
}
if let result = viewModel.testResult {
switch result {
case .success(let path, let dbFound):
VStack(alignment: .leading, spacing: 4) {
Label("Connected", systemImage: "checkmark.circle.fill")
.foregroundStyle(.green)
Text("hermes at \(path)").font(.caption).monospaced()
Text(dbFound ? "state.db found" : "state.db not found — Hermes may not have run yet on the remote")
.font(.caption)
.foregroundStyle(dbFound ? Color.secondary : Color.orange)
}
case .failure(let message, let stderr, let command):
VStack(alignment: .leading, spacing: 6) {
Label(message, systemImage: "xmark.octagon.fill")
.foregroundStyle(.red)
DisclosureGroup("ssh trace") {
ScrollView {
Text(stderr.isEmpty ? "(no output)" : stderr)
.font(.system(size: 11, design: .monospaced))
.textSelection(.enabled)
.frame(maxWidth: .infinity, alignment: .leading)
}
.frame(maxHeight: 180)
}
.font(.caption)
DisclosureGroup("Command") {
ScrollView {
Text(command)
.font(.system(size: 11, design: .monospaced))
.textSelection(.enabled)
.frame(maxWidth: .infinity, alignment: .leading)
}
.frame(maxHeight: 100)
}
.font(.caption)
}
}
}
}
}
private var footer: some View {
HStack {
Spacer()
Button("Cancel") { dismiss() }
.keyboardShortcut(.cancelAction)
Button("Save") {
onSave(viewModel.resolvedDisplayName, viewModel.configForSave())
dismiss()
}
.keyboardShortcut(.defaultAction)
.disabled(!viewModel.canSave)
}
.padding(.horizontal, 20)
.padding(.vertical, 12)
}
}
/// Form-field helper: label on the left, editable field on the right.
private struct LabeledField<Content: View>: View {
let label: String
let content: Content
init(_ label: String, @ViewBuilder content: () -> Content) {
self.label = label
self.content = content()
}
var body: some View {
HStack(alignment: .firstTextBaseline, spacing: 12) {
Text(label)
.font(.callout)
.foregroundStyle(.secondary)
.frame(width: 140, alignment: .trailing)
content
Spacer(minLength: 0)
}
}
}
scarf/scarf/Features/Servers/Views/ConnectionStatusPill.swift
+229
View File
@@ -0,0 +1,229 @@
import SwiftUI
/// Small colored pill shown in the toolbar reflecting the server's reach-
/// ability. Green = connected, yellow = probing, red = unreachable.
///
/// Clicking the pill (when red) surfaces the raw stderr so users can
/// diagnose SSH issues without digging through Console.
struct ConnectionStatusPill: View {
let status: ConnectionStatusViewModel
@State private var showDetails = false
var body: some View {
Button {
switch status.status {
case .error:
showDetails = true
case .connected, .idle:
status.retry()
}
} label: {
HStack(spacing: 4) {
Circle()
.fill(color)
.frame(width: 8, height: 8)
Text(label)
.font(.caption)
.foregroundStyle(.secondary)
.lineLimit(1)
}
.padding(.horizontal, 6)
.padding(.vertical, 2)
.background(Color.secondary.opacity(0.08), in: Capsule())
}
.buttonStyle(.plain)
.help(tooltip)
.popover(isPresented: $showDetails, arrowEdge: .bottom) {
errorDetails.frame(width: 400)
}
}
private var color: Color {
switch status.status {
case .connected: return .green
case .idle: return .yellow
case .error: return .red
}
}
private var label: String {
switch status.status {
case .connected: return "Connected"
case .idle: return "Checking…"
case .error(let message, _): return message
}
}
private var tooltip: String {
switch status.status {
case .connected:
if let ts = status.lastSuccess {
let fmt = RelativeDateTimeFormatter()
return "Last probe: \(fmt.localizedString(for: ts, relativeTo: Date()))"
}
return "Connected"
case .idle: return "Waiting for first probe"
case .error(_, _): return "Click for details"
}
}
@ViewBuilder
private var errorDetails: some View {
if case .error(let message, let stderr) = status.status {
VStack(alignment: .leading, spacing: 10) {
HStack {
Label(message, systemImage: "xmark.octagon.fill")
.foregroundStyle(.red)
.font(.headline)
Spacer()
Button("Retry") {
status.retry()
showDetails = false
}
}
Divider()
// Specific guidance based on stderr classification.
if stderr.isEmpty {
Text("No additional output. Check ~/.ssh/config and ssh-agent.")
.font(.caption)
.foregroundStyle(.secondary)
} else {
ScrollView {
Text(stderr)
.font(.system(size: 11, design: .monospaced))
.textSelection(.enabled)
.frame(maxWidth: .infinity, alignment: .leading)
}
.frame(maxHeight: 200)
}
// Tailored hint per failure class. We avoid auto-running
// anything (Scarf can't safely invoke ssh-add or ssh-keygen
// on the user's behalf), but copy-paste commands so the fix
// is one paste away in Terminal.
hintFor(stderr: stderr)
}
.padding(14)
.frame(width: 440)
}
}
@ViewBuilder
private func hintFor(stderr: String) -> some View {
let lower = stderr.lowercased()
if lower.contains("host key verification failed")
|| lower.contains("remote host identification has changed") {
// Known-hosts mismatch: this is the "blocking alert with
// fingerprints" Phase 4 calls for. We can't safely auto-trust
// a new key, so we offer the exact remediation command.
HostKeyMismatchHint(serverHost: extractHostHint(from: stderr))
} else if lower.contains("permission denied")
|| (lower.contains("publickey") && lower.contains("denied")) {
SshAddHint()
} else {
Text("If this is the first connection, ensure your key is loaded with `ssh-add` and that the remote accepts it.")
.font(.caption)
.foregroundStyle(.secondary)
}
}
/// Pull the host out of an ssh stderr line like
/// "Host key verification failed for 192.168.0.82". Best-effort — falls
/// back to a placeholder when no match is found.
private func extractHostHint(from stderr: String) -> String {
// Look for "Offending ECDSA key in /Users/.../.ssh/known_hosts:5"
// or "Host key verification failed." — neither of which directly
// contains the host. We fall back to scanning for an IP-like or
// hostname-like token in the trace.
let pattern = #"(?:host|key for) ['\"]?([A-Za-z0-9._-]+)['\"]?"#
if let regex = try? NSRegularExpression(pattern: pattern, options: .caseInsensitive),
let match = regex.firstMatch(in: stderr, range: NSRange(stderr.startIndex..., in: stderr)),
match.numberOfRanges >= 2,
let range = Range(match.range(at: 1), in: stderr) {
return String(stderr[range])
}
return "<your-host>"
}
}
/// Specific remediation card for "host key verification failed" — the
/// blocking case where ssh refuses because the remote's fingerprint changed.
/// We never auto-accept; the user runs ssh-keygen -R themselves.
private struct HostKeyMismatchHint: View {
let serverHost: String
@State private var copied = false
private var command: String { "ssh-keygen -R \(serverHost)" }
var body: some View {
VStack(alignment: .leading, spacing: 6) {
Label("Host key changed", systemImage: "exclamationmark.shield")
.font(.subheadline).bold()
.foregroundStyle(.orange)
Text("The remote's SSH fingerprint no longer matches what your `~/.ssh/known_hosts` file expected. This usually means the remote was reinstalled — or, less commonly, that someone is intercepting the connection.")
.font(.caption)
.foregroundStyle(.secondary)
Text("If you trust the change, remove the stale entry and reconnect:")
.font(.caption)
.foregroundStyle(.secondary)
HStack {
Text(command)
.font(.system(size: 11, design: .monospaced))
.textSelection(.enabled)
.padding(6)
.background(Color.secondary.opacity(0.12), in: RoundedRectangle(cornerRadius: 4))
Spacer()
Button(copied ? "Copied" : "Copy") {
NSPasteboard.general.clearContents()
NSPasteboard.general.setString(command, forType: .string)
copied = true
Task { try? await Task.sleep(nanoseconds: 1_500_000_000); copied = false }
}
.buttonStyle(.borderless)
}
}
.padding(8)
.background(Color.orange.opacity(0.1), in: RoundedRectangle(cornerRadius: 6))
}
}
/// Hint for "Permission denied" failures — almost always means ssh-agent
/// doesn't have the right key loaded. We can't run ssh-add for the user
/// (no UI to handle the passphrase prompt), but we provide the exact
/// command + a copy button.
private struct SshAddHint: View {
@State private var copied = false
private let command = "ssh-add ~/.ssh/id_ed25519"
var body: some View {
VStack(alignment: .leading, spacing: 6) {
Label("Authentication uses ssh-agent", systemImage: "key.viewfinder")
.font(.subheadline).bold()
.foregroundStyle(.blue)
Text("Scarf never prompts for passphrases. Add your key to ssh-agent in Terminal, then click Retry. If your key isn't `id_ed25519`, swap the path:")
.font(.caption)
.foregroundStyle(.secondary)
HStack {
Text(command)
.font(.system(size: 11, design: .monospaced))
.textSelection(.enabled)
.padding(6)
.background(Color.secondary.opacity(0.12), in: RoundedRectangle(cornerRadius: 4))
Spacer()
Button(copied ? "Copied" : "Copy") {
NSPasteboard.general.clearContents()
NSPasteboard.general.setString(command, forType: .string)
copied = true
Task { try? await Task.sleep(nanoseconds: 1_500_000_000); copied = false }
}
.buttonStyle(.borderless)
}
Text("To skip the passphrase prompt at every reboot, add `--apple-use-keychain` to cache it in macOS Keychain.")
.font(.caption)
.foregroundStyle(.tertiary)
}
.padding(8)
.background(Color.blue.opacity(0.08), in: RoundedRectangle(cornerRadius: 6))
}
}
scarf/scarf/Features/Servers/Views/ManageServersView.swift
+112
View File
@@ -0,0 +1,112 @@
import SwiftUI
/// List of registered remote servers with add/remove actions. Rendered as a
/// popover from the toolbar switcher.
struct ManageServersView: View {
@Environment(ServerRegistry.self) private var registry
@State private var showAddSheet = false
@State private var pendingRemoveID: ServerID?
var body: some View {
VStack(alignment: .leading, spacing: 0) {
header
Divider()
if registry.entries.isEmpty {
empty
} else {
list
}
}
.frame(width: 380, height: 360)
.sheet(isPresented: $showAddSheet) {
AddServerSheet { name, config in
_ = registry.addServer(displayName: name, config: config)
}
}
.confirmationDialog(
"Remove this server?",
isPresented: Binding(
get: { pendingRemoveID != nil },
set: { if !$0 { pendingRemoveID = nil } }
),
actions: {
Button("Remove", role: .destructive) {
if let id = pendingRemoveID { registry.removeServer(id) }
pendingRemoveID = nil
}
Button("Cancel", role: .cancel) { pendingRemoveID = nil }
},
message: {
Text("The server's SSH configuration is removed from Scarf. Your remote files are untouched.")
}
)
}
private var header: some View {
HStack {
Text("Servers").font(.headline)
Spacer()
Button {
showAddSheet = true
} label: {
Label("Add", systemImage: "plus")
}
.buttonStyle(.borderless)
}
.padding(12)
}
private var empty: some View {
VStack(spacing: 8) {
Image(systemName: "server.rack")
.font(.system(size: 28))
.foregroundStyle(.secondary)
Text("No remote servers").font(.headline)
Text("Click Add to connect to a remote Hermes installation over SSH.")
.font(.caption)
.foregroundStyle(.secondary)
.multilineTextAlignment(.center)
.frame(maxWidth: 280)
}
.padding(32)
.frame(maxWidth: .infinity, maxHeight: .infinity)
}
private var list: some View {
List {
ForEach(registry.entries) { entry in
HStack(spacing: 10) {
Image(systemName: "server.rack")
.foregroundStyle(.blue)
VStack(alignment: .leading, spacing: 2) {
Text(entry.displayName).font(.body)
if case .ssh(let config) = entry.kind {
Text(summary(for: config))
.font(.caption)
.foregroundStyle(.secondary)
}
}
Spacer()
Button {
pendingRemoveID = entry.id
} label: {
Image(systemName: "trash")
}
.buttonStyle(.borderless)
.foregroundStyle(.red)
}
.padding(.vertical, 4)
}
}
.listStyle(.inset)
}
private func summary(for config: SSHConfig) -> String {
var s = ""
if let user = config.user, !user.isEmpty { s += "\(user)@" }
s += config.host
if let port = config.port { s += ":\(port)" }
if let home = config.remoteHome, !home.isEmpty { s += " (\(home))" }
return s
}
}
scarf/scarf/Features/Servers/Views/MissingServerView.swift
+57
View File
@@ -0,0 +1,57 @@
import SwiftUI
/// Shown when a window is restored after the user removed the server it
/// was bound to. Lets them open Local or any remaining registered server
/// in this same window without quitting + relaunching.
struct MissingServerView: View {
@Environment(ServerRegistry.self) private var registry
@Environment(\.openWindow) private var openWindow
@Environment(\.dismissWindow) private var dismissWindow
let removedServerID: ServerID
var body: some View {
VStack(spacing: 16) {
Image(systemName: "questionmark.folder")
.font(.system(size: 56))
.foregroundStyle(.secondary)
Text("Server No Longer Exists")
.font(.title2).bold()
Text("The server this window was opened with has been removed from your registry.")
.multilineTextAlignment(.center)
.foregroundStyle(.secondary)
.frame(maxWidth: 380)
Text("ID: \(removedServerID.uuidString)")
.font(.caption)
.monospaced()
.foregroundStyle(.tertiary)
.textSelection(.enabled)
HStack(spacing: 8) {
Button("Open Local") {
openWindow(value: ServerContext.local.id)
dismissWindow()
}
.buttonStyle(.borderedProminent)
if !registry.entries.isEmpty {
Menu {
ForEach(registry.entries) { entry in
Button(entry.displayName) {
openWindow(value: entry.id)
dismissWindow()
}
}
} label: {
Text("Open Other Server…")
}
}
Button("Close Window") { dismissWindow() }
}
.padding(.top, 4)
}
.frame(maxWidth: .infinity, maxHeight: .infinity)
.padding(40)
}
}
scarf/scarf/Features/Servers/Views/ServerSwitcherToolbar.swift
+63
View File
@@ -0,0 +1,63 @@
import SwiftUI
/// Toolbar control that shows the current window's server and exposes a
/// menu for opening *other* servers in additional windows. Multi-window is
/// the primary interaction model — each window is bound to one server for
/// its whole lifetime — so the dropdown action is "Open in new window",
/// not "switch in place".
struct ServerSwitcherToolbar: View {
@Environment(\.serverContext) private var current
@Environment(ServerRegistry.self) private var registry
@Environment(\.openWindow) private var openWindow
@State private var showManage = false
var body: some View {
Menu {
Text("Current: \(current.displayName)")
.font(.caption)
Divider()
Section("Open in new window") {
if current.id != ServerContext.local.id {
openRow(.local)
}
ForEach(registry.entries) { entry in
if entry.id != current.id {
openRow(entry.context)
}
}
}
Divider()
Button {
showManage = true
} label: {
Label("Manage Servers…", systemImage: "server.rack")
}
} label: {
HStack(spacing: 6) {
Circle()
.fill(current.isRemote ? Color.blue : Color.green)
.frame(width: 8, height: 8)
Text(current.displayName)
.font(.callout)
.lineLimit(1)
Image(systemName: "chevron.down")
.font(.caption2)
}
.padding(.horizontal, 8)
.padding(.vertical, 4)
}
.menuIndicator(.hidden)
.popover(isPresented: $showManage, arrowEdge: .bottom) {
ManageServersView()
}
}
@ViewBuilder
private func openRow(_ context: ServerContext) -> some View {
Button {
openWindow(value: context.id)
} label: {
Label(context.displayName, systemImage: context.isRemote ? "server.rack" : "laptopcomputer")
}
}
}
scarf/scarf/Features/Sessions/ViewModels/SessionsViewModel.swift
+19 -23
View File
@@ -11,7 +11,14 @@ struct SessionStoreStats {
@Observable
final class SessionsViewModel {
private let dataService = HermesDataService()
let context: ServerContext
private let dataService: HermesDataService
init(context: ServerContext = .local) {
self.context = context
self.dataService = HermesDataService(context: context)
}
var sessions: [HermesSession] = []
var sessionPreviews: [String: String] = [:]
@@ -30,7 +37,10 @@ final class SessionsViewModel {
var deleteSessionId: String?
func load() async {
let opened = await dataService.open()
// refresh() forces a fresh snapshot on remote contexts. The DB stays
// open after load() so selectSession()/search() can query without
// re-opening — cleanup() closes on disappear.
let opened = await dataService.refresh()
guard opened else { return }
sessions = await dataService.fetchSessions(limit: 500)
sessionPreviews = await dataService.fetchSessionPreviews(limit: 500)
@@ -146,14 +156,14 @@ final class SessionsViewModel {
}
let sorted = platformCounts.sorted { $0.value > $1.value }.map { (platform: $0.key, count: $0.value) }
let dbPath = HermesPaths.stateDB
let dbPath = context.paths.stateDB
let fileSize: String
if let attrs = try? FileManager.default.attributesOfItem(atPath: dbPath),
let size = attrs[.size] as? Int {
if Double(size) >= FileSizeUnit.megabyte {
fileSize = String(format: "%.1f MB", Double(size) / FileSizeUnit.megabyte)
if let stat = context.makeTransport().stat(dbPath) {
let size = Double(stat.size)
if size >= FileSizeUnit.megabyte {
fileSize = String(format: "%.1f MB", size / FileSizeUnit.megabyte)
} else {
fileSize = String(format: "%.0f KB", Double(size) / FileSizeUnit.kilobyte)
fileSize = String(format: "%.0f KB", size / FileSizeUnit.kilobyte)
}
} else {
fileSize = "unknown"
@@ -171,20 +181,6 @@ final class SessionsViewModel {
@discardableResult
private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
let process = Process()
process.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
process.arguments = arguments
let pipe = Pipe()
process.standardOutput = pipe
process.standardError = Pipe()
do {
try process.run()
process.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
let output = String(data: data, encoding: .utf8) ?? ""
return (output, process.terminationStatus)
} catch {
return ("", -1)
}
context.runHermes(arguments)
}
}
scarf/scarf/Features/Sessions/Views/SessionsView.swift
+10 -1
View File
@@ -1,8 +1,14 @@
import SwiftUI
struct SessionsView: View {
@State private var viewModel = SessionsViewModel()
@State private var viewModel: SessionsViewModel
@Environment(AppCoordinator.self) private var coordinator
@Environment(HermesFileWatcher.self) private var fileWatcher
init(context: ServerContext) {
_viewModel = State(initialValue: SessionsViewModel(context: context))
}
var body: some View {
VStack(spacing: 0) {
@@ -33,6 +39,9 @@ struct SessionsView: View {
coordinator.selectedSessionId = nil
}
}
.onChange(of: fileWatcher.lastChangeDate) {
Task { await viewModel.load() }
}
.onDisappear { Task { await viewModel.cleanup() } }
.sheet(isPresented: $viewModel.showRenameSheet) {
renameSheet
scarf/scarf/Features/Settings/ViewModels/SettingsViewModel.swift
+50 -29
View File
@@ -6,7 +6,14 @@ import os
@Observable
final class SettingsViewModel {
private let logger = Logger(subsystem: "com.scarf", category: "SettingsViewModel")
private let fileService = HermesFileService()
let context: ServerContext
private let fileService: HermesFileService
init(context: ServerContext = .local) {
self.context = context
self.fileService = HermesFileService(context: context)
}
var config = HermesConfig.empty
var gatewayState: GatewayState?
@@ -20,18 +27,35 @@ final class SettingsViewModel {
var sttProviders = ["local", "groq", "openai", "mistral"]
var memoryProviders = ["", "honcho", "openviking", "mem0", "hindsight", "holographic", "retaindb", "byterover", "supermemory"]
var saveMessage: String?
var isLoading = false
func load() {
config = fileService.loadConfig()
gatewayState = fileService.loadGatewayState()
hermesRunning = fileService.isHermesRunning()
do {
rawConfigYAML = try String(contentsOfFile: HermesPaths.configYAML, encoding: .utf8)
} catch {
logger.error("Failed to read config.yaml: \(error.localizedDescription)")
rawConfigYAML = ""
isLoading = true
let svc = fileService
let ctx = context
let displayName = ctx.displayName
let log = logger
// Heavy load: config + gateway state + isRunning + raw YAML are
// four sync transport calls. On remote each is a blocking ssh
// round-trip; doing them on MainActor would beach-ball for ~1s.
Task.detached { [weak self] in
let cfg = svc.loadConfig()
let gw = svc.loadGatewayState()
let running = svc.isHermesRunning()
let raw = ctx.readText(ctx.paths.configYAML)
if raw == nil {
log.error("Failed to read config.yaml from \(displayName)")
}
await MainActor.run { [weak self] in
guard let self else { return }
self.config = cfg
self.gatewayState = gw
self.hermesRunning = running
self.rawConfigYAML = raw ?? ""
self.personalities = self.parsePersonalities()
self.isLoading = false
}
}
personalities = parsePersonalities()
}
/// Set a scalar config value via `hermes config set <key> <value>` and reload
@@ -223,8 +247,17 @@ final class SettingsViewModel {
self.backupInProgress = false
if result.exitCode == 0 {
if let zipPath {
NSWorkspace.shared.activateFileViewerSelecting([URL(fileURLWithPath: zipPath)])
self.saveMessage = "Backup saved"
// NSWorkspace operates on the *local* Mac's filesystem;
// a remote backup path doesn't exist here, so revealing
// it would silently no-op (or worse, reveal an
// unrelated local file with the same path). Surface the
// remote location in the saveMessage instead.
if self.context.isRemote {
self.saveMessage = "Backup saved on \(self.context.displayName): \(zipPath)"
} else {
NSWorkspace.shared.activateFileViewerSelecting([URL(fileURLWithPath: zipPath)])
self.saveMessage = "Backup saved"
}
} else {
self.saveMessage = "Backup complete"
}
@@ -278,7 +311,10 @@ final class SettingsViewModel {
}
func openConfigInEditor() {
NSWorkspace.shared.open(URL(fileURLWithPath: HermesPaths.configYAML))
// No-op for remote contexts — the file is on the remote host, not
// this Mac. The Settings tab's in-app editor is the supported way
// to edit remote configs.
context.openInLocalEditor(context.paths.configYAML)
}
private func parsePersonalities() -> [String] {
@@ -308,21 +344,6 @@ final class SettingsViewModel {
@discardableResult
private func runHermes(_ arguments: [String]) -> (output: String, exitCode: Int32) {
let process = Process()
process.executableURL = URL(fileURLWithPath: HermesPaths.hermesBinary)
process.arguments = arguments
process.environment = HermesFileService.enrichedEnvironment()
let pipe = Pipe()
process.standardOutput = pipe
process.standardError = Pipe()
do {
try process.run()
process.waitUntilExit()
let data = pipe.fileHandleForReading.readDataToEndOfFile()
return (String(data: data, encoding: .utf8) ?? "", process.terminationStatus)
} catch {
logger.error("Failed to run hermes \(arguments.joined(separator: " ")): \(error.localizedDescription)")
return ("", -1)
}
context.runHermes(arguments)
}
}
scarf/scarf/Features/Settings/Views/Components/ModelPickerSheet.swift
+2 -1
View File
@@ -21,7 +21,8 @@ struct ModelPickerSheet: View {
@State private var customModelID: String = ""
@State private var customProviderID: String = ""
private let catalog = ModelCatalogService()
@Environment(\.serverContext) private var serverContext
private var catalog: ModelCatalogService { ModelCatalogService(context: serverContext) }
var body: some View {
VStack(spacing: 0) {
scarf/scarf/Features/Settings/Views/SettingsView.swift
+11 -1
View File
@@ -5,9 +5,14 @@ import SwiftUI
/// extracted view file under `Tabs/` — per CLAUDE.md guidance, splitting avoids
/// SwiftUI type-checker timeouts and keeps each section testable in isolation.
struct SettingsView: View {
@State private var viewModel = SettingsViewModel()
@State private var viewModel: SettingsViewModel
@State private var selectedTab: SettingsTab = .general
init(context: ServerContext) {
_viewModel = State(initialValue: SettingsViewModel(context: context))
}
enum SettingsTab: String, CaseIterable, Identifiable {
case general = "General"
case display = "Display"
@@ -58,6 +63,11 @@ struct SettingsView: View {
}
}
.navigationTitle("Settings")
.loadingOverlay(
viewModel.isLoading,
label: "Loading settings…",
isEmpty: viewModel.rawConfigYAML.isEmpty
)
.onAppear { viewModel.load() }
}

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