| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "crypto/sha256" |
| 6 | "encoding/hex" |
| 7 | "encoding/json" |
| 8 | "errors" |
| 9 | "log/slog" |
| 10 | "os" |
| 11 | "path/filepath" |
| 12 | "strings" |
| 13 | "sync" |
| 14 | |
| 15 | "reasonix/desktop/internal/workspacestate" |
| 16 | "reasonix/internal/agent" |
| 17 | "reasonix/internal/config" |
| 18 | "reasonix/internal/fileutil" |
| 19 | "reasonix/internal/session" |
| 20 | "reasonix/internal/store" |
| 21 | ) |
| 22 | |
| 23 | type desktopMigrationRecord struct { |
| 24 | SourceKey string `json:"sourceKey"` |
| 25 | TargetSessionID string `json:"targetSessionId"` |
| 26 | ContentDigest string `json:"contentDigest,omitempty"` |
| 27 | SourceRevision string `json:"sourceRevision,omitempty"` |
| 28 | Status string `json:"status"` |
| 29 | ErrorCode string `json:"errorCode,omitempty"` |
| 30 | Attempts int `json:"attempts"` |
| 31 | PreviousCompletion *desktopMigrationReceipt `json:"previousCompletion,omitempty"` |
| 32 | LegacyHeads []string `json:"legacyHeads,omitempty"` |
| 33 | LegacySelectedHead string `json:"legacySelectedHead,omitempty"` |
| 34 | LegacyPrimaryHead string `json:"legacyPrimaryHead,omitempty"` |
| 35 | LegacyHeadsRevision string `json:"legacyHeadsRevision,omitempty"` |
| 36 | LegacyAdoption *desktopMigrationReceipt `json:"legacyAdoption,omitempty"` |
| 37 | LegacyConversions []desktopMigrationConversion `json:"legacyConversions,omitempty"` |
| 38 | } |
| 39 | |
| 40 | type desktopMigrationLedger struct { |
| 41 | Version int `json:"version"` |
| 42 | Records map[string]desktopMigrationRecord `json:"records"` |
| 43 | } |
| 44 | |
| 45 | var desktopMigrationMu sync.Mutex |
| 46 | |
| 47 | func desktopMigrationLedgerPath() string { |
| 48 | return filepath.Join(desktopConfigDir(), "desktop", "session-migration-v5.json") |
| 49 | } |
| 50 | |
| 51 | func (a *App) startDesktopSessionMigration(ctx context.Context) { |
| 52 | if a == nil { |
| 53 | return |
| 54 | } |
| 55 | // Capture reservations before startup admits renderer requests. Background |
| 56 | // replay must not abort a new create whose body has not been published yet. |
| 57 | startupState, err := a.workspaceRegistry().Load(ctx) |
| 58 | if err != nil { |
| 59 | a.desktopMigrationFailed.Store(true) |
| 60 | slogWarnDesktopMigration(err) |
| 61 | close(a.desktopMigrationDone) |
| 62 | return |
| 63 | } |
| 64 | c := &a.historicalImports |
| 65 | c.mu.Lock() |
| 66 | c.initialize(ctx) |
| 67 | if c.stopped || a.shuttingDown.Load() { |
| 68 | c.mu.Unlock() |
| 69 | close(a.desktopMigrationDone) |
| 70 | return |
| 71 | } |
| 72 | ctx = c.ctx |
| 73 | c.catalogEnabled = true |
| 74 | c.discoveryPending = true |
| 75 | c.workers.Add(1) |
| 76 | c.mu.Unlock() |
| 77 | go func() { |
| 78 | defer c.workers.Done() |
| 79 | admitted := false |
| 80 | defer func() { |
| 81 | if !admitted { |
| 82 | close(a.desktopMigrationDone) |
| 83 | } |
| 84 | }() |
| 85 | // Reservation recovery is independent of historical discovery. The |
| 86 | // catalog starts metadata discovery after the restored shell exists. |
| 87 | if err := a.recoverDesktopPendingCreateSnapshot(ctx, startupState.PendingCreates); err != nil { |
| 88 | a.desktopMigrationFailed.Store(true) |
| 89 | slogWarnDesktopMigration(err) |
| 90 | } |
| 91 | // Historical content waits for an explicit request. Keep prepared |
| 92 | // reservations intact for the on-demand importer. |
| 93 | if err := a.recoverDesktopOperations(ctx, false); err != nil { |
| 94 | slogWarnDesktopMigration(err) |
| 95 | } |
| 96 | // Saved-tab reconciliation waits for reservation recovery. It must be |
| 97 | // released before waiting for the shell that reconciliation will create. |
| 98 | close(a.desktopMigrationDone) |
| 99 | admitted = true |
| 100 | select { |
| 101 | case <-a.tabsRestoredSignal(): |
| 102 | case <-ctx.Done(): |
| 103 | return |
| 104 | } |
| 105 | c.mu.Lock() |
| 106 | c.discoveryPending = false |
| 107 | c.mu.Unlock() |
| 108 | a.requestHistoricalCatalog() |
| 109 | // The watcher owns initial discovery. Recovery changes the registry; |
| 110 | // invalidating every legacy root here queues a duplicate full scan. |
| 111 | a.emitProjectTreeMetadataChanged() |
| 112 | }() |
| 113 | } |
| 114 | |
| 115 | // recoverDesktopPendingCreates completes the registry half of a create that |
| 116 | // reached durable session publication before the process stopped. A missing |
| 117 | // target is safe to forget: no canonical content exists for the pending ID and |
| 118 | // the UI can retry creation without inventing a replacement identity. |
| 119 | func (a *App) recoverDesktopPendingCreates(ctx context.Context) error { |
| 120 | state, err := a.workspaceRegistry().Load(ctx) |
| 121 | if err != nil { |
| 122 | return err |
| 123 | } |
| 124 | return a.recoverDesktopPendingCreateSnapshot(ctx, state.PendingCreates) |
| 125 | } |
| 126 | |
| 127 | func (a *App) recoverDesktopPendingCreateSnapshot(ctx context.Context, pendingCreates map[string]workspacestate.PendingCreate) error { |
| 128 | service := a.desktopSessionService("") |
| 129 | var joined error |
| 130 | for sessionID, pending := range pendingCreates { |
| 131 | ref := session.SessionRef{HostID: localDesktopHostID, SessionID: sessionID} |
| 132 | if _, err := service.Query().Snapshot(ctx, ref); err == nil { |
| 133 | var attachErr error |
| 134 | if strings.HasPrefix(pending.OperationID, "rotate-") { |
| 135 | attachErr = a.workspaceRegistry().CommitRotation(ctx, pending.OperationID, pending.WorkspaceID, sessionID, "", pending.ArchiveSource) |
| 136 | } else { |
| 137 | attachErr = a.workspaceRegistry().AttachSession(ctx, pending.OperationID, pending.WorkspaceID, sessionID, "") |
| 138 | } |
| 139 | if attachErr != nil { |
| 140 | joined = errors.Join(joined, attachErr) |
| 141 | } else { |
| 142 | a.desktopSessions.pendingCreateRecovered.Add(1) |
| 143 | } |
| 144 | } else if errors.Is(err, session.ErrSessionNotFound) { |
| 145 | if abortErr := a.workspaceRegistry().AbortCreate(ctx, sessionID); abortErr != nil { |
| 146 | joined = errors.Join(joined, abortErr) |
| 147 | } |
| 148 | } else { |
| 149 | joined = errors.Join(joined, err) |
| 150 | } |
| 151 | } |
| 152 | return joined |
| 153 | } |
| 154 | |
| 155 | func slogWarnDesktopMigration(err error) { |
| 156 | // Keep migration logs content- and path-free. Detailed per-source state is |
| 157 | // available through the local ledger and UI health row. |
| 158 | if err != nil { |
| 159 | slog.Warn("desktop session migration incomplete") |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | type desktopMigrationSource struct { |
| 164 | operationID string |
| 165 | registeredSourceKey string |
| 166 | headID string |
| 167 | deferArchive bool |
| 168 | versionFingerprint string |
| 169 | root string |
| 170 | scope string |
| 171 | workspaceRoot string |
| 172 | exact map[string]bool |
| 173 | records map[string]desktopMigrationRecord |
| 174 | pairedRoot string |
| 175 | pairedIDs map[string]bool |
| 176 | legacyAdoption *desktopMigrationReceipt |
| 177 | pairedAdoption *desktopMigrationReceipt |
| 178 | conversions map[string][]desktopMigrationConversion |
| 179 | headConversions []desktopMigrationConversion |
| 180 | handledStores map[string]bool |
| 181 | conversionAdoptions []*desktopMigrationReceipt |
| 182 | } |
| 183 | |
| 184 | func (a *App) migrateDesktopSessionsV5(ctx context.Context) error { |
| 185 | replayErr := a.recoverDesktopSessionOperations(ctx) |
| 186 | sources, legacySources := a.desktopHistoricalRoots() |
| 187 | joined := replayErr |
| 188 | conversions, handledStores, conversionErr := discoverDesktopMigrationConversions(ctx, sources) |
| 189 | joined = errors.Join(joined, conversionErr) |
| 190 | for _, source := range legacySources { |
| 191 | source.conversions, source.handledStores = conversions, handledStores |
| 192 | joined = errors.Join(joined, markDesktopMigrationPairedStores(source, sources)) |
| 193 | if err := a.migrateLegacyDirectory(ctx, source); err != nil { |
| 194 | joined = errors.Join(joined, err) |
| 195 | } |
| 196 | } |
| 197 | joined = errors.Join(joined, a.migrateStoredConversionLineages(ctx, conversions, sources, handledStores)) |
| 198 | for _, source := range sources { |
| 199 | source.handledStores = handledStores |
| 200 | if err := a.migrateCanonicalStore(ctx, *source); err != nil { |
| 201 | joined = errors.Join(joined, err) |
| 202 | } |
| 203 | } |
| 204 | return errors.Join(joined, a.discoverHistoricalTrash(ctx), a.reconcileUnregisteredSessions(ctx)) |
| 205 | } |
| 206 | |
| 207 | // Enumerate trusted storage roots without reading or converting transcripts. |
| 208 | func (a *App) desktopHistoricalRoots() (map[string]*desktopMigrationSource, map[string]desktopMigrationSource) { |
| 209 | tabs := loadTabsFile() |
| 210 | projects := loadProjectsFile() |
| 211 | sources := map[string]*desktopMigrationSource{} |
| 212 | add := func(scope, workspaceRoot, root string) *desktopMigrationSource { |
| 213 | root = filepath.Clean(strings.TrimSpace(root)) |
| 214 | if root == "." || root == "" || sameDesktopPath(root, a.desktopSessions.root) { |
| 215 | return nil |
| 216 | } |
| 217 | key := canonicalRuntimeRoot(root) |
| 218 | if current := sources[key]; current != nil { |
| 219 | return current |
| 220 | } |
| 221 | source := &desktopMigrationSource{root: root, scope: scope, workspaceRoot: workspaceRoot, exact: map[string]bool{}} |
| 222 | sources[key] = source |
| 223 | return source |
| 224 | } |
| 225 | addStores := func(scope, workspaceRoot, root string) { |
| 226 | if strings.TrimSpace(root) == "" { |
| 227 | return |
| 228 | } |
| 229 | for _, candidate := range desktopLegacyStoreRoots(root) { |
| 230 | add(scope, workspaceRoot, candidate) |
| 231 | } |
| 232 | } |
| 233 | addStores("global", "", config.SessionStoreDir()) |
| 234 | addStores("global", "", config.ProjectSessionStoreDir(globalWorkspaceRoot())) |
| 235 | for _, project := range projects.Projects { |
| 236 | addStores("project", project.Root, config.ProjectSessionStoreDir(project.Root)) |
| 237 | } |
| 238 | for _, tab := range tabs.Tabs { |
| 239 | if strings.TrimSpace(tab.SessionID) == "" { |
| 240 | continue |
| 241 | } |
| 242 | root := config.ProjectSessionStoreDir(globalWorkspaceRoot()) |
| 243 | if tab.Scope == "project" { |
| 244 | root = config.ProjectSessionStoreDir(tab.WorkspaceRoot) |
| 245 | } |
| 246 | if source := add(tab.Scope, tab.WorkspaceRoot, root); source != nil { |
| 247 | source.exact[tab.SessionID] = true |
| 248 | } |
| 249 | addStores(tab.Scope, tab.WorkspaceRoot, root) |
| 250 | } |
| 251 | legacySources := map[string]desktopMigrationSource{} |
| 252 | addLegacy := func(scope, workspaceRoot, dir string) { |
| 253 | dir = filepath.Clean(strings.TrimSpace(dir)) |
| 254 | if dir == "." || dir == "" { |
| 255 | return |
| 256 | } |
| 257 | key := canonicalRuntimeRoot(dir) |
| 258 | if _, ok := legacySources[key]; !ok { |
| 259 | legacySources[key] = desktopMigrationSource{root: dir, scope: scope, workspaceRoot: workspaceRoot, exact: map[string]bool{}, pairedRoot: filepath.Join(filepath.Dir(dir), "sessions-v4")} |
| 260 | } |
| 261 | } |
| 262 | addLegacy("global", "", config.SessionDir()) |
| 263 | addLegacy("global", "", desktopSessionDir(globalWorkspaceRoot())) |
| 264 | for _, project := range projects.Projects { |
| 265 | addLegacy("project", project.Root, desktopSessionDir(project.Root)) |
| 266 | } |
| 267 | for _, tab := range tabs.Tabs { |
| 268 | path := filepath.Clean(strings.TrimSpace(tab.SessionPath)) |
| 269 | if path == "." || path == "" { |
| 270 | continue |
| 271 | } |
| 272 | dir := filepath.Dir(path) |
| 273 | key := canonicalRuntimeRoot(dir) |
| 274 | source, ok := legacySources[key] |
| 275 | if !ok { |
| 276 | scope, workspaceRoot := desktopTabLegacyScope(tab, path, dir) |
| 277 | source = desktopMigrationSource{root: dir, scope: scope, workspaceRoot: workspaceRoot, exact: map[string]bool{}, pairedRoot: filepath.Join(filepath.Dir(dir), "sessions-v4")} |
| 278 | } |
| 279 | source.exact[path] = true |
| 280 | legacySources[key] = source |
| 281 | } |
| 282 | // Include retired roots discovered only through saved legacy tabs before |
| 283 | // indexing conversion provenance. |
| 284 | for _, source := range legacySources { |
| 285 | addStores(source.scope, source.workspaceRoot, source.pairedRoot) |
| 286 | } |
| 287 | return sources, legacySources |
| 288 | } |
| 289 | |
| 290 | // A directory no registered scope owns belongs to the project whose session |
| 291 | // directory it is. The session's own recorded root proves that; the saved tab's |
| 292 | // scope does not, since the tab may have been rebound after the file was written. |
| 293 | func desktopTabLegacyScope(tab desktopTabEntry, path, dir string) (scope, workspaceRoot string) { |
| 294 | meta, exists, err := agent.LoadBranchMetaBounded(context.Background(), path) |
| 295 | if err == nil && exists && strings.TrimSpace(meta.WorkspaceRoot) != "" && sameDesktopPath(desktopSessionDir(meta.WorkspaceRoot), dir) { |
| 296 | return "project", meta.WorkspaceRoot |
| 297 | } |
| 298 | return tab.Scope, tab.WorkspaceRoot |
| 299 | } |
| 300 | |
| 301 | // A paired checkpoint and event store are one migration decision. Never |
| 302 | // publish the sidecar independently after a conflict or source failure. |
| 303 | func markDesktopMigrationPairedStores(source desktopMigrationSource, sources map[string]*desktopMigrationSource) error { |
| 304 | entries, err := os.ReadDir(source.root) |
| 305 | if os.IsNotExist(err) { |
| 306 | return nil |
| 307 | } |
| 308 | if err != nil { |
| 309 | return err |
| 310 | } |
| 311 | var joined error |
| 312 | for _, entry := range entries { |
| 313 | if entry.IsDir() || !store.IsSessionTranscriptName(entry.Name()) || strings.HasPrefix(entry.Name(), ".") { |
| 314 | continue |
| 315 | } |
| 316 | path := filepath.Join(source.root, entry.Name()) |
| 317 | pairedRoot, err := desktopLegacyPairedRoot(path, source.pairedRoot) |
| 318 | if err != nil { |
| 319 | joined = errors.Join(joined, err) |
| 320 | continue |
| 321 | } |
| 322 | if paired := sources[canonicalRuntimeRoot(pairedRoot)]; paired != nil { |
| 323 | if paired.pairedIDs == nil { |
| 324 | paired.pairedIDs = map[string]bool{} |
| 325 | } |
| 326 | paired.pairedIDs[agent.BranchID(path)] = true |
| 327 | } |
| 328 | } |
| 329 | return joined |
| 330 | } |
| 331 | |
| 332 | func (a *App) migrateCanonicalStore(ctx context.Context, source desktopMigrationSource) (retErr error) { |
| 333 | if _, err := os.Stat(source.root); os.IsNotExist(err) { |
| 334 | return nil |
| 335 | } else if err != nil { |
| 336 | return err |
| 337 | } |
| 338 | persistence := session.NewFilesystemPersistence(source.root) |
| 339 | old, err := session.NewService("migration-source", persistence) |
| 340 | if err != nil { |
| 341 | return err |
| 342 | } |
| 343 | defer func() { retErr = errors.Join(retErr, old.Shutdown(context.Background())) }() |
| 344 | ledger, err := readDesktopMigrationLedger() |
| 345 | if err != nil { |
| 346 | return err |
| 347 | } |
| 348 | source.records = ledger.Records |
| 349 | var joined error |
| 350 | var cursor string |
| 351 | for { |
| 352 | // A disposable catalog cache cannot decide whether durable history |
| 353 | // exists. Enumerate every identity, including entries with failed or |
| 354 | // missing metadata, without scheduling writes to the source cache. |
| 355 | page, err := persistence.List(ctx, cursor, 100) |
| 356 | if err != nil { |
| 357 | return errors.Join(joined, err) |
| 358 | } |
| 359 | for _, info := range page.Sessions { |
| 360 | if ctx.Err() != nil { |
| 361 | return errors.Join(joined, ctx.Err()) |
| 362 | } |
| 363 | if source.pairedIDs[info.SessionID] || source.handledStores[canonicalRuntimeRoot(filepath.Join(source.root, info.SessionID))] { |
| 364 | continue |
| 365 | } |
| 366 | if info.Codec == session.PrototypeCodec || info.Codec == session.LegacyLinearCodec || info.Codec == session.FinalV31Codec { |
| 367 | joined = errors.Join(joined, a.migratePreviewSession(ctx, source, info.SessionID)) |
| 368 | continue |
| 369 | } |
| 370 | if err := a.migrateCanonicalSession(ctx, old, source, "", info.SessionID); err != nil { |
| 371 | joined = errors.Join(joined, err) |
| 372 | } |
| 373 | } |
| 374 | if page.NextCursor == "" { |
| 375 | return joined |
| 376 | } |
| 377 | if page.NextCursor <= cursor { |
| 378 | return errors.Join(joined, errors.New("desktop migration source cursor did not advance")) |
| 379 | } |
| 380 | cursor = page.NextCursor |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | func (a *App) migrateCanonicalSession(ctx context.Context, old *session.Service, source desktopMigrationSource, workspaceID, sessionID string) error { |
| 385 | preview, err := isDesktopStoredPreview(filepath.Join(source.root, sessionID)) |
| 386 | if err != nil { |
| 387 | return errors.Join(err, updateDesktopMigrationLedger(desktopCanonicalMigrationKey(source.root, sessionID), sessionID, "failed", "source_read")) |
| 388 | } |
| 389 | if preview { |
| 390 | return a.migratePreviewSession(ctx, source, sessionID) |
| 391 | } |
| 392 | key := desktopCanonicalMigrationKey(source.root, sessionID) |
| 393 | if source.versionFingerprint != "" { |
| 394 | key += ":review:" + source.versionFingerprint |
| 395 | } |
| 396 | checkpoint, err := newDesktopMigrationCheckpoint(source, key, canonicalMigrationSourceFiles(source.root, sessionID)) |
| 397 | if err != nil { |
| 398 | return err |
| 399 | } |
| 400 | if handled, err := a.checkAdoptedMigrationSource(ctx, source, checkpoint); handled || err != nil { |
| 401 | return err |
| 402 | } |
| 403 | if checkpoint.unchanged() { |
| 404 | return a.completeRegisteredMigration(ctx, source, checkpoint, checkpoint.record.TargetSessionID, checkpoint.record.ContentDigest) |
| 405 | } |
| 406 | oldRef := session.SessionRef{HostID: "migration-source", SessionID: sessionID} |
| 407 | release, err := acquireHistoricalCanonicalRead(filepath.Join(source.root, sessionID)) |
| 408 | if err != nil { |
| 409 | return err |
| 410 | } |
| 411 | defer release() |
| 412 | contentDigest, err := canonicalMigrationDigest(ctx, old.Query(), oldRef) |
| 413 | if err != nil { |
| 414 | return errors.Join(err, updateDesktopMigrationLedger(key, sessionID, "failed", "source_read")) |
| 415 | } |
| 416 | if handled, err := a.quarantineChangedMigration(ctx, source, checkpoint, contentDigest); handled || err != nil { |
| 417 | return err |
| 418 | } |
| 419 | if checkpoint.matchesCompletedContent(contentDigest) { |
| 420 | return a.completeRegisteredMigration(ctx, source, checkpoint, checkpoint.record.TargetSessionID, contentDigest) |
| 421 | } |
| 422 | if handled, err := a.reconcileCanonicalConversion(ctx, source, checkpoint, contentDigest); handled || err != nil { |
| 423 | return err |
| 424 | } |
| 425 | if workspaceID == "" { |
| 426 | workspaceID, err = a.ensureDesktopMigrationWorkspace(ctx, source) |
| 427 | if err != nil { |
| 428 | return err |
| 429 | } |
| 430 | } |
| 431 | target := a.desktopSessionService("") |
| 432 | targetID, needsImport, err := a.resolveRegisteredMigrationTarget(ctx, source, checkpoint, sessionID, contentDigest) |
| 433 | if err != nil { |
| 434 | _ = updateDesktopMigrationLedger(key, sessionID, "failed", "target_conflict", contentDigest) |
| 435 | return err |
| 436 | } |
| 437 | if err := updateDesktopMigrationLedger(key, targetID, "pending", "", contentDigest); err != nil { |
| 438 | return err |
| 439 | } |
| 440 | if err := a.prepareRegisteredMigration(ctx, source, checkpoint, targetID, workspaceID); err != nil { |
| 441 | return err |
| 442 | } |
| 443 | if needsImport { |
| 444 | tmp, err := os.MkdirTemp("", "reasonix-session-v5-export-") |
| 445 | if err != nil { |
| 446 | return err |
| 447 | } |
| 448 | bundle := filepath.Join(tmp, "bundle") |
| 449 | defer os.RemoveAll(tmp) |
| 450 | if err := old.TryExportCold(ctx, oldRef, bundle); err != nil { |
| 451 | _ = updateDesktopMigrationLedger(key, targetID, "failed", "export", contentDigest) |
| 452 | return err |
| 453 | } |
| 454 | if _, err := target.ImportWithHeader(ctx, bundle, session.CreateOptions{ |
| 455 | SessionID: targetID, CWD: desktopWorkspaceRoot(source.scope, source.workspaceRoot), Origin: session.SessionOriginCanonicalImport, |
| 456 | }); err != nil { |
| 457 | _ = updateDesktopMigrationLedger(key, targetID, "failed", "import", contentDigest) |
| 458 | return err |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | return a.completeRegisteredMigration(ctx, source, checkpoint, targetID, contentDigest) |
| 463 | } |
| 464 | |
| 465 | func (a *App) migrateLegacyDirectory(ctx context.Context, source desktopMigrationSource) error { |
| 466 | entries, err := os.ReadDir(source.root) |
| 467 | if os.IsNotExist(err) { |
| 468 | return nil |
| 469 | } |
| 470 | if err != nil { |
| 471 | return err |
| 472 | } |
| 473 | ledger, err := readDesktopMigrationLedger() |
| 474 | if err != nil { |
| 475 | return err |
| 476 | } |
| 477 | source.records = ledger.Records |
| 478 | var joined error |
| 479 | for _, entry := range entries { |
| 480 | if ctx.Err() != nil { |
| 481 | return ctx.Err() |
| 482 | } |
| 483 | if entry.IsDir() || !store.IsSessionTranscriptName(entry.Name()) || strings.HasPrefix(entry.Name(), ".") { |
| 484 | continue |
| 485 | } |
| 486 | path := filepath.Join(source.root, entry.Name()) |
| 487 | if desktopMigrationAutomaticRecovery(path) { |
| 488 | continue |
| 489 | } |
| 490 | perFile := source |
| 491 | perFile.pairedRoot, err = desktopLegacyPairedRoot(path, source.pairedRoot) |
| 492 | if err != nil { |
| 493 | joined = errors.Join(joined, err, updateDesktopMigrationLedger(desktopLegacyMigrationKey(path), "", "failed", "source_stat")) |
| 494 | continue |
| 495 | } |
| 496 | if err := a.migrateLegacyHeads(ctx, path, perFile); err != nil { |
| 497 | joined = errors.Join(joined, err) |
| 498 | } |
| 499 | } |
| 500 | return joined |
| 501 | } |
| 502 | |
| 503 | func (a *App) migrateLegacySession(ctx context.Context, path string, source desktopMigrationSource, workspaceID string) (retErr error) { |
| 504 | key := desktopLegacyMigrationKey(path) |
| 505 | if source.headID != "" { |
| 506 | key = desktopLegacyHeadKey(path, source.headID) |
| 507 | } |
| 508 | return a.migrateLegacyHead(ctx, path, source, workspaceID, source.headID, key, true) |
| 509 | } |
| 510 | |
| 511 | func (a *App) migrateLegacyHead(ctx context.Context, path string, source desktopMigrationSource, workspaceID, headID, key string, paired bool) (retErr error) { |
| 512 | source.headID = headID |
| 513 | if source.operationID == "" { |
| 514 | meta, exists, err := agent.LoadBranchMeta(path) |
| 515 | if err != nil { |
| 516 | return errors.Join(err, a.sourceRecovery(ctx, path, "legacy", "metadata_unreadable", source.scope, source.workspaceRoot, headID)) |
| 517 | } |
| 518 | if exists && meta.WorkspaceRoot != "" && !sameDesktopPath(meta.WorkspaceRoot, desktopWorkspaceRoot(source.scope, source.workspaceRoot)) { |
| 519 | return errors.Join(errSessionWorkspaceConflict, a.sourceRecovery(ctx, path, "legacy", "workspace_conflict", source.scope, source.workspaceRoot, headID)) |
| 520 | } |
| 521 | } |
| 522 | if source.versionFingerprint != "" { |
| 523 | key += ":review:" + source.versionFingerprint |
| 524 | } |
| 525 | checkpoint, err := newDesktopMigrationCheckpoint(source, key, desktopLegacyMigrationFiles(path, source)) |
| 526 | if err != nil { |
| 527 | return err |
| 528 | } |
| 529 | if handled, err := a.checkAdoptedMigrationSource(ctx, source, checkpoint); handled || err != nil { |
| 530 | return err |
| 531 | } |
| 532 | if checkpoint.unchanged() { |
| 533 | return a.completeRegisteredMigration(ctx, source, checkpoint, checkpoint.record.TargetSessionID, checkpoint.record.ContentDigest) |
| 534 | } |
| 535 | if len(source.headConversions) > 0 { |
| 536 | if err := a.migrateConversionLineage(ctx, path, headID, source, &checkpoint, workspaceID); err != nil { |
| 537 | return errors.Join(err, updateDesktopMigrationLedger(key, checkpoint.record.TargetSessionID, "failed", "conversion_import")) |
| 538 | } |
| 539 | return nil |
| 540 | } |
| 541 | if paired && source.pairedRoot != "" { |
| 542 | // Previous v5 builds may already have adopted the paired canonical |
| 543 | // store before discovering its metadata-less legacy checkpoint. |
| 544 | pairedKey := desktopCanonicalMigrationKey(source.pairedRoot, agent.BranchID(path)) |
| 545 | record := source.records[pairedKey] |
| 546 | if record.Status == "completed" { |
| 547 | source.pairedAdoption = &desktopMigrationReceipt{TargetSessionID: record.TargetSessionID, ContentDigest: record.ContentDigest} |
| 548 | } else { |
| 549 | source.pairedAdoption = record.PreviousCompletion |
| 550 | } |
| 551 | } |
| 552 | stageRoot, err := os.MkdirTemp("", "reasonix-legacy-import-") |
| 553 | if err != nil { |
| 554 | return err |
| 555 | } |
| 556 | defer os.RemoveAll(stageRoot) |
| 557 | stage, err := session.NewService("migration-stage", session.NewFilesystemPersistence(filepath.Join(stageRoot, "sessions-v4"))) |
| 558 | if err != nil { |
| 559 | return err |
| 560 | } |
| 561 | defer func() { retErr = errors.Join(retErr, stage.Shutdown(context.Background())) }() |
| 562 | var runtime *session.Runtime |
| 563 | if paired && source.pairedRoot != "" { |
| 564 | runtime, _, err = stage.ContinueImportedFrom(ctx, path, source.pairedRoot, headID) |
| 565 | } else { |
| 566 | runtime, _, err = stage.ContinueImported(ctx, path, headID) |
| 567 | } |
| 568 | if err != nil { |
| 569 | _ = updateDesktopMigrationLedger(key, "", "failed", "legacy_import") |
| 570 | var diagnostic *session.TranscriptInitializationError |
| 571 | if errors.As(err, &diagnostic) { |
| 572 | // The source key matches the local migration ledger. Never log the |
| 573 | // source path or the unrestricted error string from imported data. |
| 574 | slog.Warn("desktop session migration transcript initialization failed", "source_key", key, |
| 575 | "stage", "legacy_import", "diagnostic", diagnostic) |
| 576 | queueTranscriptInitializationFailure(diagnostic) |
| 577 | } |
| 578 | return err |
| 579 | } |
| 580 | if err := stage.Close(ctx, runtime.Ref()); err != nil { |
| 581 | return err |
| 582 | } |
| 583 | return a.publishStagedMigration(ctx, source, checkpoint, stage, runtime.Ref(), workspaceID, session.SessionOriginLegacyImport) |
| 584 | } |
| 585 | |
| 586 | func (a *App) publishStagedMigration(ctx context.Context, source desktopMigrationSource, checkpoint desktopMigrationCheckpoint, stage *session.Service, ref session.SessionRef, workspaceID string, origin session.SessionOrigin) error { |
| 587 | key := checkpoint.key |
| 588 | target := a.desktopSessionService("") |
| 589 | contentDigest, err := canonicalMigrationDigest(ctx, stage.Query(), ref) |
| 590 | if err != nil { |
| 591 | return err |
| 592 | } |
| 593 | if handled, err := a.quarantineChangedMigration(ctx, source, checkpoint, contentDigest); handled || err != nil { |
| 594 | return err |
| 595 | } |
| 596 | if checkpoint.matchesCompletedContent(contentDigest) { |
| 597 | return a.completeRegisteredMigration(ctx, source, checkpoint, checkpoint.record.TargetSessionID, contentDigest) |
| 598 | } |
| 599 | // An older migrator adopted only the selected DAG head under the path key. |
| 600 | // Recognize that receipt when adding explicit head identities, even if the |
| 601 | // selected head has since changed and the v5 target has been continued. |
| 602 | if source.legacyAdoption != nil && source.legacyAdoption.ContentDigest == contentDigest { |
| 603 | return a.completeRegisteredMigration(ctx, source, checkpoint, source.legacyAdoption.TargetSessionID, contentDigest) |
| 604 | } |
| 605 | if source.pairedAdoption != nil && source.pairedAdoption.ContentDigest == contentDigest { |
| 606 | return a.completeRegisteredMigration(ctx, source, checkpoint, source.pairedAdoption.TargetSessionID, contentDigest) |
| 607 | } |
| 608 | for _, receipt := range source.conversionAdoptions { |
| 609 | if receipt.ContentDigest == contentDigest { |
| 610 | return a.completeRegisteredMigration(ctx, source, checkpoint, receipt.TargetSessionID, contentDigest) |
| 611 | } |
| 612 | } |
| 613 | if workspaceID == "" { |
| 614 | workspaceID, err = a.ensureDesktopMigrationWorkspace(ctx, source) |
| 615 | if err != nil { |
| 616 | return err |
| 617 | } |
| 618 | } |
| 619 | targetID, needsImport, err := a.resolveRegisteredMigrationTarget(ctx, source, checkpoint, ref.SessionID, contentDigest) |
| 620 | if err != nil { |
| 621 | _ = updateDesktopMigrationLedger(key, ref.SessionID, "failed", "target_conflict", contentDigest) |
| 622 | return err |
| 623 | } |
| 624 | if err := updateDesktopMigrationLedger(key, targetID, "pending", "", contentDigest); err != nil { |
| 625 | return err |
| 626 | } |
| 627 | if err := a.prepareRegisteredMigration(ctx, source, checkpoint, targetID, workspaceID); err != nil { |
| 628 | return err |
| 629 | } |
| 630 | if needsImport { |
| 631 | tmp, err := os.MkdirTemp("", "reasonix-v5-bundle-") |
| 632 | if err != nil { |
| 633 | return err |
| 634 | } |
| 635 | defer os.RemoveAll(tmp) |
| 636 | bundle := filepath.Join(tmp, "bundle") |
| 637 | if err := stage.Export(ctx, ref, bundle); err != nil { |
| 638 | return errors.Join(err, updateDesktopMigrationLedger(key, targetID, "failed", "export", contentDigest)) |
| 639 | } |
| 640 | if _, err := target.ImportWithHeader(ctx, bundle, session.CreateOptions{ |
| 641 | SessionID: targetID, CWD: desktopWorkspaceRoot(source.scope, source.workspaceRoot), Origin: origin, |
| 642 | }); err != nil { |
| 643 | _ = updateDesktopMigrationLedger(key, targetID, "failed", "import", contentDigest) |
| 644 | return err |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | return a.completeRegisteredMigration(ctx, source, checkpoint, targetID, contentDigest) |
| 649 | } |
| 650 | |
| 651 | func canonicalMigrationDigest(ctx context.Context, query *session.Query, ref session.SessionRef) (string, error) { |
| 652 | messages, err := query.History(ctx, ref) |
| 653 | if err != nil { |
| 654 | return "", err |
| 655 | } |
| 656 | return agent.ContentDigestForMessages(messages) |
| 657 | } |
| 658 | |
| 659 | func resolveMigrationTarget(ctx context.Context, query *session.Query, preferredID, sourceKey, contentDigest string, sourcePaths ...string) (string, bool, error) { |
| 660 | check := func(sessionID string) (bool, error) { |
| 661 | digest, err := canonicalMigrationDigest(ctx, query, session.SessionRef{HostID: localDesktopHostID, SessionID: sessionID}) |
| 662 | if errors.Is(err, session.ErrSessionNotFound) { |
| 663 | return false, nil |
| 664 | } |
| 665 | if err != nil { |
| 666 | return false, err |
| 667 | } |
| 668 | if digest != contentDigest { |
| 669 | return false, nil |
| 670 | } |
| 671 | if len(sourcePaths) > 0 { |
| 672 | info, err := query.Stat(ctx, session.SessionRef{HostID: localDesktopHostID, SessionID: sessionID}) |
| 673 | if err != nil { |
| 674 | return false, err |
| 675 | } |
| 676 | body, err := os.ReadFile(filepath.Join(info.Path, "manifest.json")) |
| 677 | if err != nil { |
| 678 | return false, err |
| 679 | } |
| 680 | var manifest session.Manifest |
| 681 | if err := json.Unmarshal(body, &manifest); err != nil { |
| 682 | return false, err |
| 683 | } |
| 684 | if manifest.Source == nil || !sameDesktopPath(manifest.Source.Path, sourcePaths[0]) { |
| 685 | return false, nil |
| 686 | } |
| 687 | if len(sourcePaths) > 1 && sourcePaths[1] != "" && manifest.Source.LegacyHeadID != sourcePaths[1] { |
| 688 | return false, nil |
| 689 | } |
| 690 | } |
| 691 | return true, nil |
| 692 | } |
| 693 | if identical, err := check(preferredID); err != nil { |
| 694 | return "", false, err |
| 695 | } else if identical { |
| 696 | return preferredID, false, nil |
| 697 | } else if _, err := query.Snapshot(ctx, session.SessionRef{HostID: localDesktopHostID, SessionID: preferredID}); errors.Is(err, session.ErrSessionNotFound) { |
| 698 | return preferredID, true, nil |
| 699 | } else if err != nil { |
| 700 | return "", false, err |
| 701 | } |
| 702 | digest := sha256.Sum256([]byte(sourceKey + "\x00" + contentDigest)) |
| 703 | conflictID := "migr-" + hex.EncodeToString(digest[:12]) |
| 704 | if identical, err := check(conflictID); err != nil { |
| 705 | return "", false, err |
| 706 | } else if identical { |
| 707 | return conflictID, false, nil |
| 708 | } else if _, err := query.Snapshot(ctx, session.SessionRef{HostID: localDesktopHostID, SessionID: conflictID}); errors.Is(err, session.ErrSessionNotFound) { |
| 709 | return conflictID, true, nil |
| 710 | } else if err != nil { |
| 711 | return "", false, err |
| 712 | } |
| 713 | return "", false, errors.New("migration target identity collision") |
| 714 | } |
| 715 | |
| 716 | // sourceState optionally supplies the content digest followed by a file revision. |
| 717 | func updateDesktopMigrationLedger(sourceKey, targetID, status, errorCode string, sourceState ...string) error { |
| 718 | desktopMigrationMu.Lock() |
| 719 | defer desktopMigrationMu.Unlock() |
| 720 | path := desktopMigrationLedgerPath() |
| 721 | release, lockErr := lockDesktopMigrationLedger() |
| 722 | if lockErr != nil { |
| 723 | return lockErr |
| 724 | } |
| 725 | defer release() |
| 726 | ledger, original, err := readDesktopMigrationLedgerFile() |
| 727 | if err != nil { |
| 728 | return err |
| 729 | } |
| 730 | record := ledger.Records[sourceKey] |
| 731 | // A failed scan or interrupted update must not erase proof that an older |
| 732 | // source revision was already adopted (and may have been continued). |
| 733 | if record.Status == "completed" && status != "completed" { |
| 734 | record.PreviousCompletion = &desktopMigrationReceipt{ |
| 735 | TargetSessionID: record.TargetSessionID, ContentDigest: record.ContentDigest, SourceRevision: record.SourceRevision, |
| 736 | } |
| 737 | } |
| 738 | record.SourceKey, record.TargetSessionID, record.Status, record.ErrorCode = sourceKey, targetID, status, errorCode |
| 739 | if len(sourceState) > 0 { |
| 740 | record.ContentDigest = sourceState[0] |
| 741 | } |
| 742 | record.SourceRevision = "" |
| 743 | if status == "completed" && len(sourceState) > 1 { |
| 744 | record.SourceRevision = sourceState[1] |
| 745 | } |
| 746 | if status == "completed" { |
| 747 | record.PreviousCompletion = nil |
| 748 | } |
| 749 | if status == "pending" { |
| 750 | record.Attempts++ |
| 751 | } |
| 752 | ledger.Records[sourceKey] = record |
| 753 | body, err := marshalDesktopMigrationRecord(original, ledger, sourceKey) |
| 754 | if err != nil { |
| 755 | return err |
| 756 | } |
| 757 | if err := os.MkdirAll(filepath.Dir(path), 0o700); err != nil { |
| 758 | return err |
| 759 | } |
| 760 | return fileutil.AtomicWriteFileStrict(path, append(body, '\n'), 0o600) |
| 761 | } |
| 762 |