| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "crypto/sha256" |
| 6 | "encoding/json" |
| 7 | "errors" |
| 8 | "fmt" |
| 9 | "io" |
| 10 | "os" |
| 11 | "path/filepath" |
| 12 | "strings" |
| 13 | "syscall" |
| 14 | "time" |
| 15 | |
| 16 | "reasonix/internal/agent" |
| 17 | "reasonix/internal/config" |
| 18 | "reasonix/internal/filelock" |
| 19 | "reasonix/internal/fileutil" |
| 20 | "reasonix/internal/store" |
| 21 | ) |
| 22 | |
| 23 | // sessions.go holds the desktop-only session-management state that the shared |
| 24 | // kernel doesn't model: custom display titles. A session on disk is just a JSONL |
| 25 | // transcript named by timestamp+model, with no title slot — so the history panel |
| 26 | // stores user-chosen names in a sidecar map (basename → title) next to the .jsonl |
| 27 | // files. The preview (first user message) is the default name; a title overrides |
| 28 | // it. Deleting a session also drops its title entry. |
| 29 | |
| 30 | const sessionTitlesFile = ".titles.json" |
| 31 | const sessionDisplayFile = ".display.json" |
| 32 | const sessionPlannerDisplayFile = ".planner-display.json" |
| 33 | const sessionTrashDir = ".trash" |
| 34 | const sessionTrashMetaFile = ".trash-meta.json" |
| 35 | |
| 36 | func sessionTitlesPath(dir string) string { return filepath.Join(dir, sessionTitlesFile) } |
| 37 | func sessionDisplayPath(dir string) string { return filepath.Join(dir, sessionDisplayFile) } |
| 38 | func sessionTrashPath(dir string) string { return filepath.Join(dir, sessionTrashDir) } |
| 39 | |
| 40 | func desktopSessionDir(root string) string { |
| 41 | root = strings.TrimSpace(root) |
| 42 | if root == "" { |
| 43 | cwd, err := os.Getwd() |
| 44 | if err != nil { |
| 45 | return config.SessionDir() |
| 46 | } |
| 47 | root = cwd |
| 48 | } |
| 49 | if dir := config.ProjectSessionDir(root); dir != "" { |
| 50 | return dir |
| 51 | } |
| 52 | return config.SessionDir() |
| 53 | } |
| 54 | |
| 55 | // loadSessionTitles reads the basename→title map (missing/corrupt → empty). |
| 56 | func loadSessionTitles(dir string) map[string]string { |
| 57 | m := map[string]string{} |
| 58 | b, err := readFileWithTimeout(sessionTitlesPath(dir), topicFileReadTimeout) |
| 59 | if err != nil { |
| 60 | return m |
| 61 | } |
| 62 | _ = json.Unmarshal(b, &m) |
| 63 | // Older builds could persist titles polluted with internal wrappers |
| 64 | // (memory-compiler contracts, transient blocks) — clean at the read |
| 65 | // boundary; UserPreviewText is a no-op on clean titles (#5666). |
| 66 | for key, title := range m { |
| 67 | m[key] = agent.UserPreviewText(title) |
| 68 | } |
| 69 | return m |
| 70 | } |
| 71 | |
| 72 | func loadSessionTitlesForUpdate(dir string) (map[string]string, error) { |
| 73 | return loadStringMapForUpdate(sessionTitlesPath(dir)) |
| 74 | } |
| 75 | |
| 76 | // saveSessionTitles writes the map atomically (temp file + rename). |
| 77 | func saveSessionTitles(dir string, m map[string]string) error { |
| 78 | b, err := json.MarshalIndent(m, "", " ") |
| 79 | if err != nil { |
| 80 | return err |
| 81 | } |
| 82 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 83 | return err |
| 84 | } |
| 85 | tmp, err := os.CreateTemp(dir, ".titles.*.tmp") |
| 86 | if err != nil { |
| 87 | return err |
| 88 | } |
| 89 | tmpPath := tmp.Name() |
| 90 | if _, err := tmp.Write(b); err != nil { |
| 91 | tmp.Close() |
| 92 | os.Remove(tmpPath) |
| 93 | return err |
| 94 | } |
| 95 | if err := tmp.Close(); err != nil { |
| 96 | os.Remove(tmpPath) |
| 97 | return err |
| 98 | } |
| 99 | return fileutil.ReplaceFile(tmpPath, sessionTitlesPath(dir)) |
| 100 | } |
| 101 | |
| 102 | // setSessionTitle sets (or, with an empty title, clears) a session's custom name. |
| 103 | func setSessionTitle(dir, sessionPath, title string) error { |
| 104 | sessionPath, _, err := validateSessionPath(dir, sessionPath) |
| 105 | if err != nil { |
| 106 | return err |
| 107 | } |
| 108 | m, err := loadSessionTitlesForUpdate(dir) |
| 109 | if err != nil { |
| 110 | return err |
| 111 | } |
| 112 | key := filepath.Base(sessionPath) |
| 113 | if strings.TrimSpace(title) == "" { |
| 114 | delete(m, key) |
| 115 | } else { |
| 116 | m[key] = strings.TrimSpace(title) |
| 117 | } |
| 118 | return saveSessionTitles(dir, m) |
| 119 | } |
| 120 | |
| 121 | // deleteSessionFile moves a session's .jsonl and file sidecars into the local |
| 122 | // trash. Title/display sidecars stay in place so trash previews and restores can |
| 123 | // preserve the user's labels. |
| 124 | func deleteSessionFile(dir, sessionPath string) error { |
| 125 | sessionPath, key, err := validateSessionPath(dir, sessionPath) |
| 126 | if err != nil { |
| 127 | return err |
| 128 | } |
| 129 | return trashSessionArtifacts(dir, sessionPath, key) |
| 130 | } |
| 131 | |
| 132 | type trashedSessionMeta struct { |
| 133 | Key string `json:"key"` |
| 134 | DeletedAt int64 `json:"deletedAt"` |
| 135 | } |
| 136 | |
| 137 | type sessionTrashArtifact struct { |
| 138 | src string |
| 139 | name string |
| 140 | } |
| 141 | |
| 142 | func sessionTelemetryPath(sessionPath string) string { |
| 143 | if strings.TrimSpace(sessionPath) == "" { |
| 144 | return "" |
| 145 | } |
| 146 | return sessionPath + ".telemetry.json" |
| 147 | } |
| 148 | |
| 149 | func sessionTrashArtifacts(sessionPath, key string) []sessionTrashArtifact { |
| 150 | stem := strings.TrimSuffix(key, ".jsonl") |
| 151 | return []sessionTrashArtifact{ |
| 152 | {src: sessionPath, name: key}, |
| 153 | {src: store.SessionMeta(sessionPath), name: key + ".meta"}, |
| 154 | {src: store.SessionGoalState(sessionPath), name: stem + ".goal-state.json"}, |
| 155 | {src: store.SessionEventLog(sessionPath), name: stem + ".events.jsonl"}, |
| 156 | {src: store.SessionEventLogDamaged(sessionPath), name: stem + ".events.jsonl.damaged"}, |
| 157 | {src: store.SessionEventIndex(sessionPath), name: stem + ".event-index.json"}, |
| 158 | {src: store.SessionConflictLog(sessionPath), name: stem + ".conflicts.jsonl"}, |
| 159 | {src: store.SessionRecoveryState(sessionPath), name: stem + ".recovery.json"}, |
| 160 | {src: sessionTelemetryPath(sessionPath), name: key + ".telemetry.json"}, |
| 161 | {src: store.SessionCheckpointDir(sessionPath), name: stem + ".ckpt"}, |
| 162 | {src: store.SessionJobsDir(sessionPath), name: stem + ".jobs"}, |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | // errSessionBusyElsewhere is the sanitized error surfaced when a destructive |
| 167 | // session operation is blocked by a live owner. It intentionally carries no |
| 168 | // writer id, hostname, or path. |
| 169 | var errSessionBusyElsewhere = errors.New("session is in use by another Reasonix window or process") |
| 170 | |
| 171 | // acquireSessionRemovalGuard wraps agent.TryAcquireSessionRemovalGuard with |
| 172 | // the sanitized busy error. The guard holds the session's save and lease |
| 173 | // locks across the destructive operation and deletes the lock files |
| 174 | // atomically with the release — a one-shot busy probe followed by RemoveAll |
| 175 | // would let another process acquire the lease in between and then lose its |
| 176 | // freshly locked lease file, breaking cross-process mutual exclusion. |
| 177 | func acquireSessionRemovalGuard(sessionPath string) (*agent.SessionRemovalGuard, error) { |
| 178 | guard, err := agent.TryAcquireSessionRemovalGuard(sessionPath) |
| 179 | if err != nil { |
| 180 | if errors.Is(err, agent.ErrSessionLeaseHeld) { |
| 181 | return nil, errSessionBusyElsewhere |
| 182 | } |
| 183 | return nil, err |
| 184 | } |
| 185 | return guard, nil |
| 186 | } |
| 187 | |
| 188 | func sessionOwnedArtifactPaths(sessionPath string) []string { |
| 189 | key := filepath.Base(sessionPath) |
| 190 | artifacts := sessionTrashArtifacts(sessionPath, key) |
| 191 | paths := make([]string, 0, len(artifacts)) |
| 192 | for _, artifact := range artifacts { |
| 193 | if strings.TrimSpace(artifact.src) != "" { |
| 194 | paths = append(paths, artifact.src) |
| 195 | } |
| 196 | } |
| 197 | return paths |
| 198 | } |
| 199 | |
| 200 | func trashSessionArtifacts(dir, sessionPath, key string) error { |
| 201 | return trashSessionArtifactsBeforeMove(dir, sessionPath, key, nil) |
| 202 | } |
| 203 | |
| 204 | func reconcileDesktopCleanupPending(dir string) error { |
| 205 | return agent.ReconcileCleanupPending(dir, func(item agent.CleanupPendingInfo) error { |
| 206 | if strings.TrimSpace(item.Meta.Operation) == "delete" { |
| 207 | sessionPath, key, err := validateSessionPath(dir, item.SessionPath) |
| 208 | if err != nil { |
| 209 | return err |
| 210 | } |
| 211 | return reconcileDesktopTrashSessionArtifacts(dir, sessionPath, key) |
| 212 | } |
| 213 | return removeDesktopSessionArtifacts(item.SessionPath) |
| 214 | }) |
| 215 | } |
| 216 | |
| 217 | func reconcileDesktopTrashSessionArtifacts(dir, sessionPath, key string) error { |
| 218 | // Hold the removal guard across the whole move so no runtime can acquire |
| 219 | // the session (or save into it) while its artifacts are relocated; the |
| 220 | // lock sidecars are deleted atomically with the guard release. |
| 221 | guard, err := acquireSessionRemovalGuard(sessionPath) |
| 222 | if err != nil { |
| 223 | return err |
| 224 | } |
| 225 | defer guard.Release() |
| 226 | itemDir := filepath.Join(sessionTrashPath(dir), key) |
| 227 | if info, err := os.Stat(itemDir); err == nil { |
| 228 | if !info.IsDir() { |
| 229 | return fmt.Errorf("session trash target is not a directory: %s", key) |
| 230 | } |
| 231 | trashPath := filepath.Join(itemDir, key) |
| 232 | if trashInfo, err := os.Stat(trashPath); err == nil && !trashInfo.IsDir() { |
| 233 | matches, err := trashSessionMatchesLive(sessionPath, trashPath) |
| 234 | if err != nil { |
| 235 | return err |
| 236 | } |
| 237 | if !matches { |
| 238 | itemDir, err = reserveUniqueSessionTrashItemDir(dir, key) |
| 239 | if err != nil { |
| 240 | return err |
| 241 | } |
| 242 | } |
| 243 | } else if err != nil && !os.IsNotExist(err) { |
| 244 | return err |
| 245 | } |
| 246 | } else if os.IsNotExist(err) { |
| 247 | if err := os.MkdirAll(itemDir, 0o755); err != nil { |
| 248 | return err |
| 249 | } |
| 250 | } else { |
| 251 | return err |
| 252 | } |
| 253 | for _, artifact := range sessionTrashArtifacts(sessionPath, key) { |
| 254 | if err := movePathIfExists(artifact.src, filepath.Join(itemDir, artifact.name)); err != nil { |
| 255 | return err |
| 256 | } |
| 257 | } |
| 258 | if err := trashSubagentArtifacts(dir, sessionPath, itemDir); err != nil { |
| 259 | return err |
| 260 | } |
| 261 | if err := guard.RemoveSidecarsAndRelease(); err != nil { |
| 262 | return err |
| 263 | } |
| 264 | meta := trashedSessionMeta{Key: key, DeletedAt: time.Now().UnixMilli()} |
| 265 | b, err := json.MarshalIndent(meta, "", " ") |
| 266 | if err != nil { |
| 267 | return err |
| 268 | } |
| 269 | if err := os.WriteFile(filepath.Join(itemDir, sessionTrashMetaFile), b, 0o644); err != nil { |
| 270 | return err |
| 271 | } |
| 272 | return agent.ClearCleanupPending(sessionPath) |
| 273 | } |
| 274 | |
| 275 | func validateSessionTrashTarget(dir, sessionPath, key string) error { |
| 276 | if _, err := os.Stat(sessionPath); os.IsNotExist(err) { |
| 277 | return nil |
| 278 | } else if err != nil { |
| 279 | return err |
| 280 | } |
| 281 | itemDir := filepath.Join(sessionTrashPath(dir), key) |
| 282 | if info, err := os.Stat(itemDir); err == nil { |
| 283 | if !info.IsDir() { |
| 284 | return fmt.Errorf("session trash target is not a directory: %s", key) |
| 285 | } |
| 286 | trashPath := filepath.Join(itemDir, key) |
| 287 | if trashInfo, err := os.Stat(trashPath); err == nil && !trashInfo.IsDir() { |
| 288 | removable, err := liveSessionRemovableWithExistingTrash(sessionPath, trashPath) |
| 289 | if err != nil { |
| 290 | return err |
| 291 | } |
| 292 | if removable { |
| 293 | return nil |
| 294 | } |
| 295 | if agent.SessionLeaseHeldByOtherRuntime(sessionPath) { |
| 296 | return errSessionBusyElsewhere |
| 297 | } |
| 298 | return nil |
| 299 | } else if err != nil && !os.IsNotExist(err) { |
| 300 | return err |
| 301 | } |
| 302 | return nil |
| 303 | } else if !os.IsNotExist(err) { |
| 304 | return err |
| 305 | } |
| 306 | return nil |
| 307 | } |
| 308 | |
| 309 | type preparedSessionTrashTarget struct { |
| 310 | shouldMove bool |
| 311 | itemDir string |
| 312 | allocateUnique bool |
| 313 | } |
| 314 | |
| 315 | func prepareSessionTrashTarget(dir, sessionPath, key string) (preparedSessionTrashTarget, error) { |
| 316 | if _, err := os.Stat(sessionPath); os.IsNotExist(err) { |
| 317 | return preparedSessionTrashTarget{}, nil |
| 318 | } else if err != nil { |
| 319 | return preparedSessionTrashTarget{}, err |
| 320 | } |
| 321 | itemDir := filepath.Join(sessionTrashPath(dir), key) |
| 322 | if info, err := os.Stat(itemDir); err == nil { |
| 323 | if !info.IsDir() { |
| 324 | return preparedSessionTrashTarget{}, fmt.Errorf("session trash target is not a directory: %s", key) |
| 325 | } |
| 326 | trashPath := filepath.Join(itemDir, key) |
| 327 | if trashInfo, err := os.Stat(trashPath); err == nil && !trashInfo.IsDir() { |
| 328 | removable, err := liveSessionRemovableWithExistingTrash(sessionPath, trashPath) |
| 329 | if err != nil { |
| 330 | return preparedSessionTrashTarget{}, err |
| 331 | } |
| 332 | if removable { |
| 333 | return preparedSessionTrashTarget{}, removeDesktopSessionArtifacts(sessionPath) |
| 334 | } |
| 335 | if agent.SessionLeaseHeldByOtherRuntime(sessionPath) { |
| 336 | return preparedSessionTrashTarget{}, errSessionBusyElsewhere |
| 337 | } |
| 338 | return preparedSessionTrashTarget{shouldMove: true, allocateUnique: true}, nil |
| 339 | } else if err != nil && !os.IsNotExist(err) { |
| 340 | return preparedSessionTrashTarget{}, err |
| 341 | } |
| 342 | if err := os.RemoveAll(itemDir); err != nil { |
| 343 | return preparedSessionTrashTarget{}, err |
| 344 | } |
| 345 | } else if !os.IsNotExist(err) { |
| 346 | return preparedSessionTrashTarget{}, err |
| 347 | } |
| 348 | return preparedSessionTrashTarget{shouldMove: true, itemDir: itemDir}, nil |
| 349 | } |
| 350 | |
| 351 | func reserveUniqueSessionTrashItemDir(dir, key string) (string, error) { |
| 352 | root := sessionTrashPath(dir) |
| 353 | if err := os.MkdirAll(root, 0o755); err != nil { |
| 354 | return "", err |
| 355 | } |
| 356 | stem := strings.TrimSuffix(key, ".jsonl") |
| 357 | for i := 0; i < 100; i++ { |
| 358 | name := fmt.Sprintf("%s.jsonl-deleted-%d-%02d", stem, time.Now().UnixNano(), i) |
| 359 | itemDir := filepath.Join(root, name) |
| 360 | if err := os.Mkdir(itemDir, 0o755); err == nil { |
| 361 | return itemDir, nil |
| 362 | } else if !os.IsExist(err) { |
| 363 | return "", err |
| 364 | } |
| 365 | } |
| 366 | return "", fmt.Errorf("could not allocate unique trash target for session: %s", key) |
| 367 | } |
| 368 | |
| 369 | // liveSessionRemovableWithExistingTrash reports whether a live session file may |
| 370 | // be removed even though a trash copy already exists under the same key: the |
| 371 | // live file must be discardable (empty stub) or byte-identical to the trash |
| 372 | // copy, and no other runtime may hold its session lease — another process could |
| 373 | // be mid-write, and removing the file would silently drop its next save. |
| 374 | func liveSessionRemovableWithExistingTrash(sessionPath, trashPath string) (bool, error) { |
| 375 | discardable, err := liveSessionDiscardable(sessionPath) |
| 376 | if err != nil { |
| 377 | return false, err |
| 378 | } |
| 379 | duplicate := false |
| 380 | if !discardable { |
| 381 | duplicate, err = trashSessionMatchesLive(sessionPath, trashPath) |
| 382 | if err != nil { |
| 383 | return false, err |
| 384 | } |
| 385 | } |
| 386 | if !discardable && !duplicate { |
| 387 | return false, nil |
| 388 | } |
| 389 | return !agent.SessionLeaseHeldByOtherRuntime(sessionPath), nil |
| 390 | } |
| 391 | |
| 392 | func liveSessionDiscardable(sessionPath string) (bool, error) { |
| 393 | if agent.IsCleanupPending(sessionPath) { |
| 394 | return true, nil |
| 395 | } |
| 396 | info, err := os.Stat(sessionPath) |
| 397 | if os.IsNotExist(err) { |
| 398 | return true, nil |
| 399 | } |
| 400 | if err != nil { |
| 401 | return false, err |
| 402 | } |
| 403 | if info.IsDir() { |
| 404 | return false, nil |
| 405 | } |
| 406 | if info.Size() == 0 { |
| 407 | return true, nil |
| 408 | } |
| 409 | session, err := agent.LoadSession(sessionPath) |
| 410 | if err != nil { |
| 411 | return false, nil |
| 412 | } |
| 413 | return !session.HasContent(), nil |
| 414 | } |
| 415 | |
| 416 | func trashSessionMatchesLive(sessionPath, trashPath string) (bool, error) { |
| 417 | if _, err := os.Stat(sessionPath); err != nil { |
| 418 | if os.IsNotExist(err) { |
| 419 | return true, nil |
| 420 | } |
| 421 | return false, err |
| 422 | } |
| 423 | // Compare decoded transcripts, not .jsonl bytes: the checkpoint only |
| 424 | // changes at checkpoints, so two byte-identical .jsonl files can hide |
| 425 | // diverged event logs — and treating them as duplicates would delete the |
| 426 | // live session's newer history. |
| 427 | return agent.SessionsShareContent(sessionPath, trashPath) |
| 428 | } |
| 429 | |
| 430 | func sessionFileHasConversationContent(sessionPath string) bool { |
| 431 | if strings.TrimSpace(sessionPath) == "" || agent.IsCleanupPending(sessionPath) { |
| 432 | return false |
| 433 | } |
| 434 | info, err := os.Stat(sessionPath) |
| 435 | if err != nil || info.IsDir() || info.Size() == 0 { |
| 436 | return false |
| 437 | } |
| 438 | session, err := agent.LoadSession(sessionPath) |
| 439 | if err != nil { |
| 440 | return false |
| 441 | } |
| 442 | return session.HasContent() |
| 443 | } |
| 444 | |
| 445 | func trashSessionArtifactsBeforeMove(dir, sessionPath, key string, beforeMove func()) error { |
| 446 | if err := validateSessionTrashTarget(dir, sessionPath, key); err != nil { |
| 447 | return err |
| 448 | } |
| 449 | target, err := prepareSessionTrashTarget(dir, sessionPath, key) |
| 450 | if err != nil { |
| 451 | return err |
| 452 | } |
| 453 | if !target.shouldMove { |
| 454 | return nil |
| 455 | } |
| 456 | // Acquired after prepareSessionTrashTarget: the duplicate-trash path in |
| 457 | // there takes its own removal guard, and the guard is not reentrant. |
| 458 | guard, err := acquireSessionRemovalGuard(sessionPath) |
| 459 | if err != nil { |
| 460 | return err |
| 461 | } |
| 462 | defer guard.Release() |
| 463 | if err := invalidateTopicDirMarkers(dir); err != nil { |
| 464 | return err |
| 465 | } |
| 466 | itemDir := target.itemDir |
| 467 | if target.allocateUnique { |
| 468 | itemDir, err = reserveUniqueSessionTrashItemDir(dir, key) |
| 469 | if err != nil { |
| 470 | return err |
| 471 | } |
| 472 | } else if err := os.MkdirAll(itemDir, 0o755); err != nil { |
| 473 | return err |
| 474 | } |
| 475 | if beforeMove != nil { |
| 476 | beforeMove() |
| 477 | } |
| 478 | for _, artifact := range sessionTrashArtifacts(sessionPath, key) { |
| 479 | if err := movePathIfExists(artifact.src, filepath.Join(itemDir, artifact.name)); err != nil { |
| 480 | return err |
| 481 | } |
| 482 | } |
| 483 | if err := trashSubagentArtifacts(dir, sessionPath, itemDir); err != nil { |
| 484 | return err |
| 485 | } |
| 486 | if err := guard.RemoveSidecarsAndRelease(); err != nil { |
| 487 | return err |
| 488 | } |
| 489 | meta := trashedSessionMeta{Key: key, DeletedAt: time.Now().UnixMilli()} |
| 490 | b, err := json.MarshalIndent(meta, "", " ") |
| 491 | if err != nil { |
| 492 | return err |
| 493 | } |
| 494 | if err := os.WriteFile(filepath.Join(itemDir, sessionTrashMetaFile), b, 0o644); err != nil { |
| 495 | return err |
| 496 | } |
| 497 | if err := agent.ClearCleanupPending(sessionPath); err != nil { |
| 498 | return err |
| 499 | } |
| 500 | return nil |
| 501 | } |
| 502 | |
| 503 | func listTrashedSessionFiles(dir string) ([]string, error) { |
| 504 | root := sessionTrashPath(dir) |
| 505 | entries, err := os.ReadDir(root) |
| 506 | if err != nil { |
| 507 | if os.IsNotExist(err) { |
| 508 | return []string{}, nil |
| 509 | } |
| 510 | return nil, err |
| 511 | } |
| 512 | paths := []string{} |
| 513 | for _, e := range entries { |
| 514 | if !e.IsDir() { |
| 515 | continue |
| 516 | } |
| 517 | itemDir := filepath.Join(root, e.Name()) |
| 518 | keys := []string{} |
| 519 | if b, err := readFileUTF8(filepath.Join(itemDir, sessionTrashMetaFile)); err == nil { |
| 520 | var meta trashedSessionMeta |
| 521 | if json.Unmarshal(b, &meta) == nil && store.IsSessionTranscriptName(meta.Key) { |
| 522 | keys = append(keys, meta.Key) |
| 523 | } |
| 524 | } |
| 525 | if store.IsSessionTranscriptName(e.Name()) { |
| 526 | keys = append(keys, e.Name()) |
| 527 | } |
| 528 | for _, key := range keys { |
| 529 | path := filepath.Join(itemDir, key) |
| 530 | validPath, _, _, err := validateTrashedSessionPath(dir, path) |
| 531 | if err != nil { |
| 532 | continue |
| 533 | } |
| 534 | if info, err := os.Stat(validPath); err == nil && !info.IsDir() { |
| 535 | paths = append(paths, validPath) |
| 536 | break |
| 537 | } |
| 538 | } |
| 539 | } |
| 540 | return paths, nil |
| 541 | } |
| 542 | |
| 543 | func trashedSessionDeletedAt(path string) int64 { |
| 544 | b, err := readFileUTF8(filepath.Join(filepath.Dir(path), sessionTrashMetaFile)) |
| 545 | if err != nil { |
| 546 | return 0 |
| 547 | } |
| 548 | var meta trashedSessionMeta |
| 549 | if err := json.Unmarshal(b, &meta); err != nil { |
| 550 | return 0 |
| 551 | } |
| 552 | return meta.DeletedAt |
| 553 | } |
| 554 | |
| 555 | func restoreTrashedSessionFile(dir, path string) error { |
| 556 | _, key, itemDir, err := validateTrashedSessionPath(dir, path) |
| 557 | if err != nil { |
| 558 | return err |
| 559 | } |
| 560 | target := filepath.Join(dir, key) |
| 561 | if _, err := os.Stat(target); err == nil { |
| 562 | discardable, err := liveSessionDiscardable(target) |
| 563 | if err != nil { |
| 564 | return err |
| 565 | } |
| 566 | if !discardable { |
| 567 | return fmt.Errorf("session already exists: %s", key) |
| 568 | } |
| 569 | if err := removeDesktopSessionArtifacts(target); err != nil { |
| 570 | return err |
| 571 | } |
| 572 | } else if !os.IsNotExist(err) { |
| 573 | return err |
| 574 | } |
| 575 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 576 | return err |
| 577 | } |
| 578 | if err := checkRestoreSubagentConflicts(dir, itemDir); err != nil { |
| 579 | return err |
| 580 | } |
| 581 | for _, artifact := range sessionTrashArtifacts(target, key) { |
| 582 | if err := movePathIfExists(filepath.Join(itemDir, artifact.name), artifact.src); err != nil { |
| 583 | return err |
| 584 | } |
| 585 | } |
| 586 | if err := restoreSubagentArtifacts(dir, itemDir); err != nil { |
| 587 | return err |
| 588 | } |
| 589 | return os.RemoveAll(itemDir) |
| 590 | } |
| 591 | |
| 592 | func purgeTrashedSessionFile(dir, path string) error { |
| 593 | _, key, itemDir, err := validateTrashedSessionPath(dir, path) |
| 594 | if err != nil { |
| 595 | return err |
| 596 | } |
| 597 | if err := os.RemoveAll(itemDir); err != nil { |
| 598 | return err |
| 599 | } |
| 600 | m, err := loadSessionTitlesForUpdate(dir) |
| 601 | if err != nil { |
| 602 | return err |
| 603 | } |
| 604 | if _, ok := m[key]; ok { |
| 605 | delete(m, key) |
| 606 | if err := saveSessionTitles(dir, m); err != nil { |
| 607 | return err |
| 608 | } |
| 609 | } |
| 610 | if err := removeSessionDisplayKey(dir, key); err != nil { |
| 611 | return err |
| 612 | } |
| 613 | if err := removeSessionPlannerDisplay(dir, key); err != nil { |
| 614 | return err |
| 615 | } |
| 616 | return nil |
| 617 | } |
| 618 | |
| 619 | func movePathIfExists(src, dst string) error { |
| 620 | if _, err := os.Lstat(src); os.IsNotExist(err) { |
| 621 | return nil |
| 622 | } else if err != nil { |
| 623 | return err |
| 624 | } |
| 625 | if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil { |
| 626 | return err |
| 627 | } |
| 628 | // Try os.Rename first — it's atomic and fast when it works. |
| 629 | if err := os.Rename(src, dst); err == nil { |
| 630 | return nil |
| 631 | } else if sourcePathMissing(src) { |
| 632 | return nil |
| 633 | } else if !isRenameCrossDeviceOrBusy(err) { |
| 634 | return err |
| 635 | } |
| 636 | // Fallback: copy then remove. This handles cross-device moves and the |
| 637 | // Windows case where a directory rename fails because a handle is briefly |
| 638 | // held open (e.g. antivirus scan, indexing, or a just-closed file). |
| 639 | return copyAndRemove(src, dst) |
| 640 | } |
| 641 | |
| 642 | // isRenameCrossDeviceOrBusy reports whether err is a cross-device rename or |
| 643 | // a "file busy" error that a copy+remove fallback can recover from. |
| 644 | func isRenameCrossDeviceOrBusy(err error) bool { |
| 645 | if err == nil { |
| 646 | return false |
| 647 | } |
| 648 | // Cross-device link. |
| 649 | if le, ok := err.(*os.LinkError); ok { |
| 650 | if le.Err == syscall.EXDEV { |
| 651 | return true |
| 652 | } |
| 653 | // Windows: "The process cannot access the file because it is being used by another process." |
| 654 | if errno, ok := le.Err.(syscall.Errno); ok { |
| 655 | return errno == 32 // ERROR_SHARING_VIOLATION |
| 656 | } |
| 657 | } |
| 658 | return false |
| 659 | } |
| 660 | |
| 661 | func sourcePathMissing(src string) bool { |
| 662 | if strings.TrimSpace(src) == "" { |
| 663 | return true |
| 664 | } |
| 665 | _, err := os.Lstat(src) |
| 666 | return os.IsNotExist(err) |
| 667 | } |
| 668 | |
| 669 | // copyPathFn is a seam for tests to simulate a source vanishing mid-copy. |
| 670 | var copyPathFn = copyPath |
| 671 | |
| 672 | // copyAndRemove recursively copies src to dst, then removes src. Used as a |
| 673 | // fallback when os.Rename fails (cross-device or Windows file-lock races). |
| 674 | func copyAndRemove(src, dst string) error { |
| 675 | if err := copyPathFn(src, dst); err != nil { |
| 676 | if sourcePathMissing(src) { |
| 677 | // The source vanished mid-copy; drop the partial destination so |
| 678 | // the trash never keeps a truncated artifact that a later restore |
| 679 | // would resurrect as a corrupted transcript. |
| 680 | _ = os.RemoveAll(dst) |
| 681 | return nil |
| 682 | } |
| 683 | return err |
| 684 | } |
| 685 | // On Windows, wait briefly for any file handle release. |
| 686 | time.Sleep(10 * time.Millisecond) |
| 687 | return os.RemoveAll(src) |
| 688 | } |
| 689 | |
| 690 | func copyPath(src, dst string) error { |
| 691 | info, err := os.Lstat(src) |
| 692 | if err != nil { |
| 693 | if os.IsNotExist(err) { |
| 694 | return nil |
| 695 | } |
| 696 | return err |
| 697 | } |
| 698 | mode := info.Mode() |
| 699 | switch { |
| 700 | case mode&os.ModeSymlink != 0: |
| 701 | return copySymlink(src, dst) |
| 702 | case mode.IsDir(): |
| 703 | return copyDir(src, dst, mode.Perm()) |
| 704 | case mode.IsRegular(): |
| 705 | return copyFile(src, dst, mode.Perm()) |
| 706 | default: |
| 707 | return fmt.Errorf("unsupported file type in rename fallback: %s", src) |
| 708 | } |
| 709 | } |
| 710 | |
| 711 | func copyDir(src, dst string, mode os.FileMode) error { |
| 712 | if err := os.MkdirAll(dst, mode); err != nil { |
| 713 | return err |
| 714 | } |
| 715 | entries, err := os.ReadDir(src) |
| 716 | if err != nil { |
| 717 | if os.IsNotExist(err) { |
| 718 | _ = os.RemoveAll(dst) |
| 719 | return nil |
| 720 | } |
| 721 | return err |
| 722 | } |
| 723 | for _, e := range entries { |
| 724 | srcPath := filepath.Join(src, e.Name()) |
| 725 | dstPath := filepath.Join(dst, e.Name()) |
| 726 | if err := copyPath(srcPath, dstPath); err != nil { |
| 727 | return err |
| 728 | } |
| 729 | } |
| 730 | return nil |
| 731 | } |
| 732 | |
| 733 | func copyFile(src, dst string, mode os.FileMode) error { |
| 734 | // Open source file. |
| 735 | in, err := os.Open(src) |
| 736 | if err != nil { |
| 737 | if os.IsNotExist(err) { |
| 738 | return nil |
| 739 | } |
| 740 | return err |
| 741 | } |
| 742 | // Create destination file. |
| 743 | out, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, mode) |
| 744 | if err != nil { |
| 745 | in.Close() |
| 746 | return err |
| 747 | } |
| 748 | // Copy content. |
| 749 | _, err = io.Copy(out, in) |
| 750 | // Close both files before any removal. |
| 751 | closeErr := out.Close() |
| 752 | in.Close() |
| 753 | if err != nil { |
| 754 | return err |
| 755 | } |
| 756 | if closeErr != nil { |
| 757 | return closeErr |
| 758 | } |
| 759 | return nil |
| 760 | } |
| 761 | |
| 762 | func copySymlink(src, dst string) error { |
| 763 | target, err := os.Readlink(src) |
| 764 | if err != nil { |
| 765 | if os.IsNotExist(err) { |
| 766 | return nil |
| 767 | } |
| 768 | return err |
| 769 | } |
| 770 | return os.Symlink(target, dst) |
| 771 | } |
| 772 | |
| 773 | func trashSubagentArtifacts(dir, sessionPath, itemDir string) error { |
| 774 | artifacts, err := agent.ListSubagentsByParent(dir, agent.BranchID(sessionPath)) |
| 775 | if err != nil { |
| 776 | return err |
| 777 | } |
| 778 | trashSubagentDir := filepath.Join(itemDir, "subagents") |
| 779 | for _, artifact := range artifacts { |
| 780 | paths := []string{artifact.SessionPath, artifact.MetaPath} |
| 781 | paths = append(paths, store.SessionSidecarFiles(artifact.SessionPath)...) |
| 782 | for _, src := range paths { |
| 783 | if strings.TrimSpace(src) == "" { |
| 784 | continue |
| 785 | } |
| 786 | if err := movePathIfExists(src, filepath.Join(trashSubagentDir, filepath.Base(src))); err != nil { |
| 787 | return err |
| 788 | } |
| 789 | } |
| 790 | } |
| 791 | return nil |
| 792 | } |
| 793 | |
| 794 | func checkRestoreSubagentConflicts(dir, itemDir string) error { |
| 795 | trashSubagentDir := filepath.Join(itemDir, "subagents") |
| 796 | entries, err := os.ReadDir(trashSubagentDir) |
| 797 | if err != nil { |
| 798 | if os.IsNotExist(err) { |
| 799 | return nil |
| 800 | } |
| 801 | return err |
| 802 | } |
| 803 | for _, entry := range entries { |
| 804 | if entry.IsDir() { |
| 805 | continue |
| 806 | } |
| 807 | target := filepath.Join(dir, "subagents", entry.Name()) |
| 808 | if _, err := os.Stat(target); err == nil { |
| 809 | return fmt.Errorf("subagent artifact already exists: %s", entry.Name()) |
| 810 | } else if !os.IsNotExist(err) { |
| 811 | return err |
| 812 | } |
| 813 | } |
| 814 | return nil |
| 815 | } |
| 816 | |
| 817 | func restoreSubagentArtifacts(dir, itemDir string) error { |
| 818 | trashSubagentDir := filepath.Join(itemDir, "subagents") |
| 819 | entries, err := os.ReadDir(trashSubagentDir) |
| 820 | if err != nil { |
| 821 | if os.IsNotExist(err) { |
| 822 | return nil |
| 823 | } |
| 824 | return err |
| 825 | } |
| 826 | for _, entry := range entries { |
| 827 | if entry.IsDir() { |
| 828 | continue |
| 829 | } |
| 830 | if err := movePathIfExists(filepath.Join(trashSubagentDir, entry.Name()), filepath.Join(dir, "subagents", entry.Name())); err != nil { |
| 831 | return err |
| 832 | } |
| 833 | } |
| 834 | return nil |
| 835 | } |
| 836 | |
| 837 | func validateSessionPath(dir, sessionPath string) (string, string, error) { |
| 838 | if strings.TrimSpace(sessionPath) == "" { |
| 839 | return "", "", fmt.Errorf("empty session path") |
| 840 | } |
| 841 | absDir, err := filepath.Abs(dir) |
| 842 | if err != nil { |
| 843 | return "", "", err |
| 844 | } |
| 845 | path := sessionPath |
| 846 | if !filepath.IsAbs(path) { |
| 847 | path = filepath.Join(absDir, path) |
| 848 | } |
| 849 | absPath, err := filepath.Abs(path) |
| 850 | if err != nil { |
| 851 | return "", "", err |
| 852 | } |
| 853 | if !store.IsSessionTranscriptName(filepath.Base(absPath)) { |
| 854 | return "", "", fmt.Errorf("not a session file: %s", sessionPath) |
| 855 | } |
| 856 | rel, err := filepath.Rel(absDir, absPath) |
| 857 | if err != nil || rel == "." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) || rel == ".." || filepath.IsAbs(rel) { |
| 858 | return "", "", fmt.Errorf("session path outside session dir: %s", sessionPath) |
| 859 | } |
| 860 | if info, err := os.Lstat(absPath); err == nil { |
| 861 | if info.IsDir() { |
| 862 | return "", "", fmt.Errorf("not a session file: %s", sessionPath) |
| 863 | } |
| 864 | realDir, dirErr := filepath.EvalSymlinks(absDir) |
| 865 | if dirErr != nil { |
| 866 | realDir = absDir |
| 867 | } |
| 868 | realPath, err := filepath.EvalSymlinks(absPath) |
| 869 | if err != nil { |
| 870 | return "", "", err |
| 871 | } |
| 872 | rel, err := filepath.Rel(realDir, realPath) |
| 873 | if err != nil || rel == "." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) || rel == ".." || filepath.IsAbs(rel) { |
| 874 | return "", "", fmt.Errorf("session path escapes session dir: %s", sessionPath) |
| 875 | } |
| 876 | } else if !os.IsNotExist(err) { |
| 877 | return "", "", err |
| 878 | } |
| 879 | return absPath, filepath.Base(absPath), nil |
| 880 | } |
| 881 | |
| 882 | func validateTrashedSessionPath(dir, sessionPath string) (string, string, string, error) { |
| 883 | if strings.TrimSpace(sessionPath) == "" { |
| 884 | return "", "", "", fmt.Errorf("empty session path") |
| 885 | } |
| 886 | root, err := filepath.Abs(sessionTrashPath(dir)) |
| 887 | if err != nil { |
| 888 | return "", "", "", err |
| 889 | } |
| 890 | path := sessionPath |
| 891 | if !filepath.IsAbs(path) { |
| 892 | path = filepath.Join(root, path) |
| 893 | } |
| 894 | absPath, err := filepath.Abs(path) |
| 895 | if err != nil { |
| 896 | return "", "", "", err |
| 897 | } |
| 898 | if !store.IsSessionTranscriptName(filepath.Base(absPath)) { |
| 899 | return "", "", "", fmt.Errorf("not a session file: %s", sessionPath) |
| 900 | } |
| 901 | rel, err := filepath.Rel(root, absPath) |
| 902 | if err != nil || rel == "." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) || rel == ".." || filepath.IsAbs(rel) { |
| 903 | return "", "", "", fmt.Errorf("session path outside trash dir: %s", sessionPath) |
| 904 | } |
| 905 | parts := strings.Split(rel, string(filepath.Separator)) |
| 906 | if len(parts) != 2 { |
| 907 | return "", "", "", fmt.Errorf("invalid trash session path: %s", sessionPath) |
| 908 | } |
| 909 | if parts[0] != parts[1] { |
| 910 | b, err := readFileUTF8(filepath.Join(root, parts[0], sessionTrashMetaFile)) |
| 911 | if err != nil { |
| 912 | return "", "", "", fmt.Errorf("invalid trash session path: %s", sessionPath) |
| 913 | } |
| 914 | var meta trashedSessionMeta |
| 915 | if err := json.Unmarshal(b, &meta); err != nil || meta.Key != parts[1] { |
| 916 | return "", "", "", fmt.Errorf("invalid trash session path: %s", sessionPath) |
| 917 | } |
| 918 | } |
| 919 | if info, err := os.Lstat(absPath); err == nil { |
| 920 | if info.IsDir() { |
| 921 | return "", "", "", fmt.Errorf("not a session file: %s", sessionPath) |
| 922 | } |
| 923 | realRoot, dirErr := filepath.EvalSymlinks(root) |
| 924 | if dirErr != nil { |
| 925 | realRoot = root |
| 926 | } |
| 927 | realPath, err := filepath.EvalSymlinks(absPath) |
| 928 | if err != nil { |
| 929 | return "", "", "", err |
| 930 | } |
| 931 | rel, err := filepath.Rel(realRoot, realPath) |
| 932 | if err != nil || rel == "." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) || rel == ".." || filepath.IsAbs(rel) { |
| 933 | return "", "", "", fmt.Errorf("session path escapes trash dir: %s", sessionPath) |
| 934 | } |
| 935 | } else if !os.IsNotExist(err) { |
| 936 | return "", "", "", err |
| 937 | } |
| 938 | return absPath, filepath.Base(absPath), filepath.Dir(absPath), nil |
| 939 | } |
| 940 | |
| 941 | type sessionDisplayMap map[string]map[string]string |
| 942 | |
| 943 | type sessionPlannerDisplayMap map[string][]plannerDisplayTurn |
| 944 | |
| 945 | type plannerDisplayTurn struct { |
| 946 | UserHash string `json:"userHash"` |
| 947 | Messages []HistoryMessage `json:"messages"` |
| 948 | } |
| 949 | |
| 950 | var ( |
| 951 | sessionPlannerDisplayLockTimeout = 750 * time.Millisecond |
| 952 | errCorruptSessionPlannerDisplay = errors.New("corrupt planner display sidecar") |
| 953 | ) |
| 954 | |
| 955 | // sessionPlannerDisplayUpdateAfterLoad is a subprocess-test seam. Production |
| 956 | // leaves it nil; tests use it to force two independent processes into the old |
| 957 | // stale read-modify-write window without relying on scheduler timing. |
| 958 | var sessionPlannerDisplayUpdateAfterLoad func() |
| 959 | |
| 960 | func messageDisplayKey(content string) string { |
| 961 | sum := sha256.Sum256([]byte(content)) |
| 962 | return fmt.Sprintf("%x", sum[:]) |
| 963 | } |
| 964 | |
| 965 | func loadSessionDisplays(dir string) sessionDisplayMap { |
| 966 | m := sessionDisplayMap{} |
| 967 | b, err := readFileUTF8(sessionDisplayPath(dir)) |
| 968 | if err != nil { |
| 969 | return m |
| 970 | } |
| 971 | _ = json.Unmarshal(b, &m) |
| 972 | return m |
| 973 | } |
| 974 | |
| 975 | func sessionPlannerDisplayPath(dir string) string { |
| 976 | return filepath.Join(dir, sessionPlannerDisplayFile) |
| 977 | } |
| 978 | |
| 979 | func loadSessionPlannerDisplays(dir string) sessionPlannerDisplayMap { |
| 980 | m := sessionPlannerDisplayMap{} |
| 981 | if strings.TrimSpace(dir) == "" { |
| 982 | return m |
| 983 | } |
| 984 | b, err := readFileUTF8(sessionPlannerDisplayPath(dir)) |
| 985 | if err != nil { |
| 986 | return m |
| 987 | } |
| 988 | _ = json.Unmarshal(b, &m) |
| 989 | return m |
| 990 | } |
| 991 | |
| 992 | func loadSessionPlannerDisplaysForUpdate(dir string) (sessionPlannerDisplayMap, error) { |
| 993 | m := sessionPlannerDisplayMap{} |
| 994 | b, err := readFileUTF8(sessionPlannerDisplayPath(dir)) |
| 995 | if err != nil { |
| 996 | if errors.Is(err, os.ErrNotExist) { |
| 997 | return m, nil |
| 998 | } |
| 999 | return nil, err |
| 1000 | } |
| 1001 | if err := json.Unmarshal(b, &m); err != nil { |
| 1002 | return nil, fmt.Errorf("%w: %v", errCorruptSessionPlannerDisplay, err) |
| 1003 | } |
| 1004 | if m == nil { |
| 1005 | m = sessionPlannerDisplayMap{} |
| 1006 | } |
| 1007 | return m, nil |
| 1008 | } |
| 1009 | |
| 1010 | func saveSessionPlannerDisplays(dir string, m sessionPlannerDisplayMap) error { |
| 1011 | b, err := json.MarshalIndent(m, "", " ") |
| 1012 | if err != nil { |
| 1013 | return err |
| 1014 | } |
| 1015 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 1016 | return err |
| 1017 | } |
| 1018 | tmp, err := os.CreateTemp(dir, ".planner-display.*.tmp") |
| 1019 | if err != nil { |
| 1020 | return err |
| 1021 | } |
| 1022 | tmpPath := tmp.Name() |
| 1023 | if _, err := tmp.Write(b); err != nil { |
| 1024 | tmp.Close() |
| 1025 | os.Remove(tmpPath) |
| 1026 | return err |
| 1027 | } |
| 1028 | if err := tmp.Close(); err != nil { |
| 1029 | os.Remove(tmpPath) |
| 1030 | return err |
| 1031 | } |
| 1032 | return fileutil.ReplaceFile(tmpPath, sessionPlannerDisplayPath(dir)) |
| 1033 | } |
| 1034 | |
| 1035 | func saveOrRemoveSessionPlannerDisplays(dir string, m sessionPlannerDisplayMap) error { |
| 1036 | if len(m) == 0 { |
| 1037 | err := os.Remove(sessionPlannerDisplayPath(dir)) |
| 1038 | if os.IsNotExist(err) { |
| 1039 | return nil |
| 1040 | } |
| 1041 | return err |
| 1042 | } |
| 1043 | return saveSessionPlannerDisplays(dir, m) |
| 1044 | } |
| 1045 | |
| 1046 | func updateSessionPlannerDisplays(dir string, recoverCorrupt bool, mutate func(sessionPlannerDisplayMap) bool) error { |
| 1047 | if strings.TrimSpace(dir) == "" { |
| 1048 | return errors.New("planner display directory is empty") |
| 1049 | } |
| 1050 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 1051 | return err |
| 1052 | } |
| 1053 | ctx, cancel := context.WithTimeout(context.Background(), sessionPlannerDisplayLockTimeout) |
| 1054 | defer cancel() |
| 1055 | release, err := filelock.Acquire(ctx, sessionPlannerDisplayPath(dir)+".lock") |
| 1056 | if err != nil { |
| 1057 | return fmt.Errorf("lock planner display sidecar: %w", err) |
| 1058 | } |
| 1059 | defer release() |
| 1060 | |
| 1061 | m, err := loadSessionPlannerDisplaysForUpdate(dir) |
| 1062 | if err != nil { |
| 1063 | if !recoverCorrupt || !errors.Is(err, errCorruptSessionPlannerDisplay) { |
| 1064 | return err |
| 1065 | } |
| 1066 | // A corrupt shared map cannot be edited safely. Destructive cleanup is |
| 1067 | // allowed to retire the unreadable sidecar so deleted-session display |
| 1068 | // data does not linger and later records can start from a valid map. |
| 1069 | if removeErr := os.Remove(sessionPlannerDisplayPath(dir)); removeErr != nil && !os.IsNotExist(removeErr) { |
| 1070 | return errors.Join(err, removeErr) |
| 1071 | } |
| 1072 | m = sessionPlannerDisplayMap{} |
| 1073 | } |
| 1074 | if sessionPlannerDisplayUpdateAfterLoad != nil { |
| 1075 | sessionPlannerDisplayUpdateAfterLoad() |
| 1076 | } |
| 1077 | if !mutate(m) { |
| 1078 | return nil |
| 1079 | } |
| 1080 | return saveOrRemoveSessionPlannerDisplays(dir, m) |
| 1081 | } |
| 1082 | |
| 1083 | func recordSessionPlannerDisplay(dir, sessionPath, userContent string, messages []HistoryMessage) error { |
| 1084 | if strings.TrimSpace(sessionPath) == "" || strings.TrimSpace(userContent) == "" || len(messages) == 0 { |
| 1085 | return nil |
| 1086 | } |
| 1087 | key := filepath.Base(sessionPath) |
| 1088 | turn := plannerDisplayTurn{ |
| 1089 | UserHash: messageDisplayKey(userContent), |
| 1090 | Messages: cloneHistoryMessages(messages), |
| 1091 | } |
| 1092 | return updateSessionPlannerDisplays(dir, false, func(m sessionPlannerDisplayMap) bool { |
| 1093 | m[key] = append(m[key], turn) |
| 1094 | return true |
| 1095 | }) |
| 1096 | } |
| 1097 | |
| 1098 | func removeSessionPlannerDisplay(dir, sessionPath string) error { |
| 1099 | if strings.TrimSpace(sessionPath) == "" { |
| 1100 | return nil |
| 1101 | } |
| 1102 | key := filepath.Base(sessionPath) |
| 1103 | return updateSessionPlannerDisplays(dir, true, func(m sessionPlannerDisplayMap) bool { |
| 1104 | if _, ok := m[key]; !ok { |
| 1105 | return false |
| 1106 | } |
| 1107 | delete(m, key) |
| 1108 | return true |
| 1109 | }) |
| 1110 | } |
| 1111 | |
| 1112 | func pruneSessionPlannerDisplays(dir string, protected map[string]struct{}) error { |
| 1113 | return updateSessionPlannerDisplays(dir, true, func(m sessionPlannerDisplayMap) bool { |
| 1114 | changed := false |
| 1115 | for key := range m { |
| 1116 | if sessionDisplayKeyStillOwned(dir, key, protected) { |
| 1117 | continue |
| 1118 | } |
| 1119 | delete(m, key) |
| 1120 | changed = true |
| 1121 | } |
| 1122 | return changed |
| 1123 | }) |
| 1124 | } |
| 1125 | |
| 1126 | func sessionPlannerDisplayTurns(dir, sessionPath string) []plannerDisplayTurn { |
| 1127 | if strings.TrimSpace(dir) == "" || strings.TrimSpace(sessionPath) == "" { |
| 1128 | return nil |
| 1129 | } |
| 1130 | turns := loadSessionPlannerDisplays(dir)[filepath.Base(sessionPath)] |
| 1131 | if len(turns) == 0 { |
| 1132 | return nil |
| 1133 | } |
| 1134 | out := make([]plannerDisplayTurn, 0, len(turns)) |
| 1135 | for _, turn := range turns { |
| 1136 | if strings.TrimSpace(turn.UserHash) == "" || len(turn.Messages) == 0 { |
| 1137 | continue |
| 1138 | } |
| 1139 | out = append(out, plannerDisplayTurn{ |
| 1140 | UserHash: turn.UserHash, |
| 1141 | Messages: cloneHistoryMessages(turn.Messages), |
| 1142 | }) |
| 1143 | } |
| 1144 | return out |
| 1145 | } |
| 1146 | |
| 1147 | func saveSessionDisplays(dir string, m sessionDisplayMap) error { |
| 1148 | b, err := json.MarshalIndent(m, "", " ") |
| 1149 | if err != nil { |
| 1150 | return err |
| 1151 | } |
| 1152 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 1153 | return err |
| 1154 | } |
| 1155 | tmp, err := os.CreateTemp(dir, ".display.*.tmp") |
| 1156 | if err != nil { |
| 1157 | return err |
| 1158 | } |
| 1159 | tmpPath := tmp.Name() |
| 1160 | if _, err := tmp.Write(b); err != nil { |
| 1161 | tmp.Close() |
| 1162 | os.Remove(tmpPath) |
| 1163 | return err |
| 1164 | } |
| 1165 | if err := tmp.Close(); err != nil { |
| 1166 | os.Remove(tmpPath) |
| 1167 | return err |
| 1168 | } |
| 1169 | return fileutil.ReplaceFile(tmpPath, sessionDisplayPath(dir)) |
| 1170 | } |
| 1171 | |
| 1172 | func saveOrRemoveSessionDisplays(dir string, m sessionDisplayMap) error { |
| 1173 | if len(m) == 0 { |
| 1174 | err := os.Remove(sessionDisplayPath(dir)) |
| 1175 | if os.IsNotExist(err) { |
| 1176 | return nil |
| 1177 | } |
| 1178 | return err |
| 1179 | } |
| 1180 | return saveSessionDisplays(dir, m) |
| 1181 | } |
| 1182 | |
| 1183 | // updateSessionDisplays serializes the display sidecar's read-modify-write |
| 1184 | // cycle. Parallel tabs can record display text concurrently; atomic rename |
| 1185 | // protects readers from partial JSON but cannot prevent the last writer from |
| 1186 | // replacing another tab's freshly added keys (#6873). |
| 1187 | func updateSessionDisplays(dir string, mutate func(sessionDisplayMap) bool) error { |
| 1188 | if strings.TrimSpace(dir) == "" { |
| 1189 | return errors.New("display directory is empty") |
| 1190 | } |
| 1191 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 1192 | return err |
| 1193 | } |
| 1194 | ctx, cancel := context.WithTimeout(context.Background(), 750*time.Millisecond) |
| 1195 | defer cancel() |
| 1196 | release, err := filelock.Acquire(ctx, sessionDisplayPath(dir)+".lock") |
| 1197 | if err != nil { |
| 1198 | return fmt.Errorf("lock display sidecar: %w", err) |
| 1199 | } |
| 1200 | defer release() |
| 1201 | |
| 1202 | m := loadSessionDisplays(dir) |
| 1203 | if !mutate(m) { |
| 1204 | return nil |
| 1205 | } |
| 1206 | return saveOrRemoveSessionDisplays(dir, m) |
| 1207 | } |
| 1208 | |
| 1209 | func removeSessionDisplayKey(dir, key string) error { |
| 1210 | key = strings.TrimSpace(key) |
| 1211 | if key == "" { |
| 1212 | return nil |
| 1213 | } |
| 1214 | return updateSessionDisplays(dir, func(m sessionDisplayMap) bool { |
| 1215 | if m[key] == nil { |
| 1216 | return false |
| 1217 | } |
| 1218 | delete(m, key) |
| 1219 | return true |
| 1220 | }) |
| 1221 | } |
| 1222 | |
| 1223 | func removeSessionDisplay(dir, sessionPath string) error { |
| 1224 | if strings.TrimSpace(sessionPath) == "" { |
| 1225 | return nil |
| 1226 | } |
| 1227 | return removeSessionDisplayKey(dir, filepath.Base(sessionPath)) |
| 1228 | } |
| 1229 | |
| 1230 | func pruneSessionDisplays(dir string, protected map[string]struct{}) error { |
| 1231 | return updateSessionDisplays(dir, func(m sessionDisplayMap) bool { |
| 1232 | if len(m) == 0 { |
| 1233 | return false |
| 1234 | } |
| 1235 | changed := false |
| 1236 | for key := range m { |
| 1237 | if sessionDisplayKeyStillOwned(dir, key, protected) { |
| 1238 | continue |
| 1239 | } |
| 1240 | delete(m, key) |
| 1241 | changed = true |
| 1242 | } |
| 1243 | return changed |
| 1244 | }) |
| 1245 | } |
| 1246 | |
| 1247 | func sessionDisplayKeyStillOwned(dir, key string, protected map[string]struct{}) bool { |
| 1248 | key = strings.TrimSpace(key) |
| 1249 | if key == "" || filepath.Base(key) != key || !store.IsSessionTranscriptName(key) { |
| 1250 | return false |
| 1251 | } |
| 1252 | if protected != nil { |
| 1253 | if _, ok := protected[key]; ok { |
| 1254 | return true |
| 1255 | } |
| 1256 | } |
| 1257 | sessionPath := filepath.Join(dir, key) |
| 1258 | if info, err := os.Stat(sessionPath); err == nil && !info.IsDir() { |
| 1259 | return true |
| 1260 | } |
| 1261 | trashPath := filepath.Join(sessionTrashPath(dir), key, key) |
| 1262 | if info, err := os.Stat(trashPath); err == nil && !info.IsDir() { |
| 1263 | return true |
| 1264 | } |
| 1265 | if paths, err := listTrashedSessionFiles(dir); err == nil { |
| 1266 | for _, path := range paths { |
| 1267 | if filepath.Base(path) == key { |
| 1268 | return true |
| 1269 | } |
| 1270 | } |
| 1271 | } |
| 1272 | return false |
| 1273 | } |
| 1274 | |
| 1275 | func recordSessionDisplay(dir, sessionPath, content, display string) error { |
| 1276 | if strings.TrimSpace(sessionPath) == "" || content == display || strings.TrimSpace(display) == "" { |
| 1277 | return nil |
| 1278 | } |
| 1279 | return updateSessionDisplays(dir, func(m sessionDisplayMap) bool { |
| 1280 | key := filepath.Base(sessionPath) |
| 1281 | if m[key] == nil { |
| 1282 | m[key] = map[string]string{} |
| 1283 | } |
| 1284 | m[key][messageDisplayKey(content)] = display |
| 1285 | return true |
| 1286 | }) |
| 1287 | } |
| 1288 | |
| 1289 | // sessionDisplayResolver loads the sidecar once and returns a per-message |
| 1290 | // resolver, so a transcript of N messages doesn't re-read .display.json N times. |
| 1291 | func sessionDisplayResolver(dir, sessionPath string) func(content string) string { |
| 1292 | return sessionDisplayResolverFromMap(loadSessionDisplays(dir), sessionPath) |
| 1293 | } |
| 1294 | |
| 1295 | func sessionDisplayResolverFromMap(displays sessionDisplayMap, sessionPath string) func(content string) string { |
| 1296 | byHash := displays[filepath.Base(sessionPath)] |
| 1297 | return func(content string) string { |
| 1298 | if byHash != nil { |
| 1299 | if display := byHash[messageDisplayKey(content)]; strings.TrimSpace(display) != "" { |
| 1300 | return display |
| 1301 | } |
| 1302 | } |
| 1303 | return historyReplayUserContent(content) |
| 1304 | } |
| 1305 | } |
| 1306 | |
| 1307 | func resolveSessionDisplay(dir, sessionPath, content string) string { |
| 1308 | return sessionDisplayResolver(dir, sessionPath)(content) |
| 1309 | } |
| 1310 |