| 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/fileutil" |
| 19 | filelock "reasonix/internal/identitylock" |
| 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 | const ( |
| 37 | // Durable sidecar publication includes an fsync while holding the update |
| 38 | // lock. Keep enough queue budget for a burst of in-process writers on |
| 39 | // slower Windows disks, but fail external contention quickly so turn |
| 40 | // completion and retry-queue handoff do not stall behind another process. |
| 41 | sessionSidecarQueueTimeout = 5 * time.Second |
| 42 | sessionSidecarExternalLockTimeout = 750 * time.Millisecond |
| 43 | ) |
| 44 | |
| 45 | var ( |
| 46 | sessionTitlesQueueTimeout = sessionSidecarQueueTimeout |
| 47 | sessionPlannerDisplayExternalLockTimeout = sessionSidecarExternalLockTimeout |
| 48 | sessionDisplayExternalLockTimeout = sessionSidecarExternalLockTimeout |
| 49 | ) |
| 50 | |
| 51 | func sessionTitlesPath(dir string) string { return filepath.Join(dir, sessionTitlesFile) } |
| 52 | func sessionDisplayPath(dir string) string { return filepath.Join(dir, sessionDisplayFile) } |
| 53 | func sessionTrashPath(dir string) string { return filepath.Join(dir, sessionTrashDir) } |
| 54 | |
| 55 | func desktopSessionDir(root string) string { |
| 56 | root = strings.TrimSpace(root) |
| 57 | if root == "" { |
| 58 | cwd, err := os.Getwd() |
| 59 | if err != nil { |
| 60 | return config.SessionDir() |
| 61 | } |
| 62 | root = cwd |
| 63 | } |
| 64 | if dir := config.ProjectSessionDir(root); dir != "" { |
| 65 | return dir |
| 66 | } |
| 67 | return config.SessionDir() |
| 68 | } |
| 69 | |
| 70 | func loadSessionTitlesForUpdate(dir string) (map[string]string, error) { |
| 71 | return loadStringMapForUpdate(sessionTitlesPath(dir)) |
| 72 | } |
| 73 | |
| 74 | func updateSessionTitles(dir string, mutate func(map[string]string) bool) error { |
| 75 | if strings.TrimSpace(dir) == "" { |
| 76 | return errors.New("title directory is empty") |
| 77 | } |
| 78 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 79 | return err |
| 80 | } |
| 81 | ctx, cancel := context.WithTimeout(context.Background(), sessionTitlesQueueTimeout) |
| 82 | defer cancel() |
| 83 | release, err := filelock.AcquireWithExternalTimeout(ctx, sessionTitlesPath(dir)+".lock", sessionSidecarExternalLockTimeout) |
| 84 | if err != nil { |
| 85 | return fmt.Errorf("lock title sidecar: %w", err) |
| 86 | } |
| 87 | defer release() |
| 88 | |
| 89 | m, err := loadSessionTitlesForUpdate(dir) |
| 90 | if err != nil { |
| 91 | return err |
| 92 | } |
| 93 | if !mutate(m) { |
| 94 | return nil |
| 95 | } |
| 96 | return saveSessionTitles(dir, m) |
| 97 | } |
| 98 | |
| 99 | // saveSessionTitles writes the map durably and atomically. Keep this on the |
| 100 | // shared helper so the temporary file is fsynced before it is published. |
| 101 | func saveSessionTitles(dir string, m map[string]string) error { |
| 102 | b, err := json.MarshalIndent(m, "", " ") |
| 103 | if err != nil { |
| 104 | return err |
| 105 | } |
| 106 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 107 | return err |
| 108 | } |
| 109 | return fileutil.AtomicWriteFile(sessionTitlesPath(dir), b, 0o600) |
| 110 | } |
| 111 | |
| 112 | type sessionTrashArtifact struct { |
| 113 | src string |
| 114 | name string |
| 115 | } |
| 116 | |
| 117 | func sessionTelemetryPath(sessionPath string) string { |
| 118 | if strings.TrimSpace(sessionPath) == "" { |
| 119 | return "" |
| 120 | } |
| 121 | return sessionPath + ".telemetry.json" |
| 122 | } |
| 123 | |
| 124 | // errSessionBusyElsewhere is the sanitized error surfaced when a destructive |
| 125 | // session operation is blocked by a live owner. It intentionally carries no |
| 126 | // writer id, hostname, or path. |
| 127 | var errSessionBusyElsewhere = errors.New("session is in use by another Reasonix window or process") |
| 128 | |
| 129 | // acquireSessionRemovalGuard wraps agent.TryAcquireSessionRemovalGuard with |
| 130 | // the sanitized busy error. The guard holds the session's save and lease |
| 131 | // locks across the destructive operation and deletes the lock files |
| 132 | // atomically with the release — a one-shot busy probe followed by RemoveAll |
| 133 | // would let another process acquire the lease in between and then lose its |
| 134 | // freshly locked lease file, breaking cross-process mutual exclusion. |
| 135 | func acquireSessionRemovalGuard(sessionPath string) (*agent.SessionRemovalGuard, error) { |
| 136 | guard, err := withSessionLeaseContentionRetry(func() (*agent.SessionRemovalGuard, error) { |
| 137 | return agent.TryAcquireSessionRemovalGuard(sessionPath) |
| 138 | }) |
| 139 | if err != nil { |
| 140 | if errors.Is(err, agent.ErrSessionLeaseHeld) { |
| 141 | return nil, errSessionBusyElsewhere |
| 142 | } |
| 143 | return nil, err |
| 144 | } |
| 145 | return guard, nil |
| 146 | } |
| 147 | |
| 148 | func sessionOwnedArtifactPaths(sessionPath string) []string { |
| 149 | key := filepath.Base(sessionPath) |
| 150 | artifacts := sessionTrashArtifacts(sessionPath, key) |
| 151 | paths := make([]string, 0, len(artifacts)) |
| 152 | for _, artifact := range artifacts { |
| 153 | if strings.TrimSpace(artifact.src) != "" { |
| 154 | paths = append(paths, artifact.src) |
| 155 | } |
| 156 | } |
| 157 | return paths |
| 158 | } |
| 159 | |
| 160 | func trashSessionArtifacts(dir, sessionPath, key string) error { |
| 161 | return trashSessionArtifactsBeforeMove(dir, sessionPath, key, nil) |
| 162 | } |
| 163 | |
| 164 | func reconcileDesktopCleanupPending(dir string) error { |
| 165 | return agent.ReconcileCleanupPending(dir, func(item agent.CleanupPendingInfo) error { |
| 166 | if strings.TrimSpace(item.Meta.Operation) == "delete" { |
| 167 | sessionPath, key, err := validateSessionPath(dir, item.SessionPath) |
| 168 | if err != nil { |
| 169 | return err |
| 170 | } |
| 171 | return reconcileDesktopTrashSessionArtifacts(dir, sessionPath, key) |
| 172 | } |
| 173 | return removeDesktopSessionArtifacts(item.SessionPath) |
| 174 | }) |
| 175 | } |
| 176 | |
| 177 | func validateSessionTrashTarget(dir, sessionPath, key string) error { |
| 178 | if _, err := os.Stat(sessionPath); os.IsNotExist(err) { |
| 179 | return nil |
| 180 | } else if err != nil { |
| 181 | return err |
| 182 | } |
| 183 | itemDir := filepath.Join(sessionTrashPath(dir), key) |
| 184 | if info, err := os.Stat(itemDir); err == nil { |
| 185 | if !info.IsDir() { |
| 186 | return fmt.Errorf("session trash target is not a directory: %s", key) |
| 187 | } |
| 188 | trashPath := filepath.Join(itemDir, key) |
| 189 | if trashInfo, err := os.Stat(trashPath); err == nil && !trashInfo.IsDir() { |
| 190 | removable, err := liveSessionRemovableWithExistingTrash(sessionPath, trashPath) |
| 191 | if err != nil { |
| 192 | return err |
| 193 | } |
| 194 | if removable { |
| 195 | return nil |
| 196 | } |
| 197 | if agent.SessionLeaseHeldByOtherRuntime(sessionPath) { |
| 198 | return errSessionBusyElsewhere |
| 199 | } |
| 200 | return nil |
| 201 | } else if err != nil && !os.IsNotExist(err) { |
| 202 | return err |
| 203 | } |
| 204 | return nil |
| 205 | } else if !os.IsNotExist(err) { |
| 206 | return err |
| 207 | } |
| 208 | return nil |
| 209 | } |
| 210 | |
| 211 | type preparedSessionTrashTarget struct { |
| 212 | shouldMove bool |
| 213 | itemDir string |
| 214 | allocateUnique bool |
| 215 | } |
| 216 | |
| 217 | func prepareSessionTrashTarget(dir, sessionPath, key string) (preparedSessionTrashTarget, error) { |
| 218 | if _, err := os.Stat(sessionPath); os.IsNotExist(err) { |
| 219 | return preparedSessionTrashTarget{}, nil |
| 220 | } else if err != nil { |
| 221 | return preparedSessionTrashTarget{}, err |
| 222 | } |
| 223 | itemDir := filepath.Join(sessionTrashPath(dir), key) |
| 224 | if info, err := os.Stat(itemDir); err == nil { |
| 225 | if !info.IsDir() { |
| 226 | return preparedSessionTrashTarget{}, fmt.Errorf("session trash target is not a directory: %s", key) |
| 227 | } |
| 228 | trashPath := filepath.Join(itemDir, key) |
| 229 | if trashInfo, err := os.Stat(trashPath); err == nil && !trashInfo.IsDir() { |
| 230 | removable, err := liveSessionRemovableWithExistingTrash(sessionPath, trashPath) |
| 231 | if err != nil { |
| 232 | return preparedSessionTrashTarget{}, err |
| 233 | } |
| 234 | if removable { |
| 235 | return preparedSessionTrashTarget{}, removeDesktopSessionArtifacts(sessionPath) |
| 236 | } |
| 237 | if agent.SessionLeaseHeldByOtherRuntime(sessionPath) { |
| 238 | return preparedSessionTrashTarget{}, errSessionBusyElsewhere |
| 239 | } |
| 240 | return preparedSessionTrashTarget{shouldMove: true, allocateUnique: true}, nil |
| 241 | } else if err != nil && !os.IsNotExist(err) { |
| 242 | return preparedSessionTrashTarget{}, err |
| 243 | } |
| 244 | if err := os.RemoveAll(itemDir); err != nil { |
| 245 | return preparedSessionTrashTarget{}, err |
| 246 | } |
| 247 | } else if !os.IsNotExist(err) { |
| 248 | return preparedSessionTrashTarget{}, err |
| 249 | } |
| 250 | return preparedSessionTrashTarget{shouldMove: true, itemDir: itemDir}, nil |
| 251 | } |
| 252 | |
| 253 | func reserveUniqueSessionTrashItemDir(dir, key string) (string, error) { |
| 254 | root := sessionTrashPath(dir) |
| 255 | if err := os.MkdirAll(root, 0o755); err != nil { |
| 256 | return "", err |
| 257 | } |
| 258 | stem := strings.TrimSuffix(key, ".jsonl") |
| 259 | for i := range 100 { |
| 260 | name := fmt.Sprintf("%s.jsonl-deleted-%d-%02d", stem, time.Now().UnixNano(), i) |
| 261 | itemDir := filepath.Join(root, name) |
| 262 | if err := os.Mkdir(itemDir, 0o755); err == nil { |
| 263 | return itemDir, nil |
| 264 | } else if !os.IsExist(err) { |
| 265 | return "", err |
| 266 | } |
| 267 | } |
| 268 | return "", fmt.Errorf("could not allocate unique trash target for session: %s", key) |
| 269 | } |
| 270 | |
| 271 | // liveSessionRemovableWithExistingTrash reports whether a live session file may |
| 272 | // be removed even though a trash copy already exists under the same key: the |
| 273 | // live file must be discardable (empty stub) or byte-identical to the trash |
| 274 | // copy, and no other runtime may hold its session lease — another process could |
| 275 | // be mid-write, and removing the file would silently drop its next save. |
| 276 | func liveSessionRemovableWithExistingTrash(sessionPath, trashPath string) (bool, error) { |
| 277 | discardable, err := liveSessionDiscardable(sessionPath) |
| 278 | if err != nil { |
| 279 | return false, err |
| 280 | } |
| 281 | duplicate := false |
| 282 | if !discardable { |
| 283 | duplicate, err = trashSessionMatchesLive(sessionPath, trashPath) |
| 284 | if err != nil { |
| 285 | return false, err |
| 286 | } |
| 287 | } |
| 288 | if !discardable && !duplicate { |
| 289 | return false, nil |
| 290 | } |
| 291 | return !agent.SessionLeaseHeldByOtherRuntime(sessionPath), nil |
| 292 | } |
| 293 | |
| 294 | func liveSessionDiscardable(sessionPath string) (bool, error) { |
| 295 | if agent.IsCleanupPending(sessionPath) { |
| 296 | return true, nil |
| 297 | } |
| 298 | return liveSessionContentDiscardable(sessionPath) |
| 299 | } |
| 300 | |
| 301 | func liveSessionContentDiscardable(sessionPath string) (bool, error) { |
| 302 | info, err := os.Stat(sessionPath) |
| 303 | if os.IsNotExist(err) { |
| 304 | return true, nil |
| 305 | } |
| 306 | if err != nil { |
| 307 | return false, err |
| 308 | } |
| 309 | if info.IsDir() { |
| 310 | return false, nil |
| 311 | } |
| 312 | if info.Size() == 0 { |
| 313 | return true, nil |
| 314 | } |
| 315 | session, err := agent.LoadSession(sessionPath) |
| 316 | if err != nil { |
| 317 | return false, nil |
| 318 | } |
| 319 | return !session.HasContent(), nil |
| 320 | } |
| 321 | |
| 322 | func trashSessionMatchesLive(sessionPath, trashPath string) (bool, error) { |
| 323 | if _, err := os.Stat(sessionPath); err != nil { |
| 324 | if os.IsNotExist(err) { |
| 325 | return true, nil |
| 326 | } |
| 327 | return false, err |
| 328 | } |
| 329 | // Compare decoded transcripts, not .jsonl bytes: the checkpoint only |
| 330 | // changes at checkpoints, so two byte-identical .jsonl files can hide |
| 331 | // diverged event logs — and treating them as duplicates would delete the |
| 332 | // live session's newer history. |
| 333 | return agent.SessionsShareContent(sessionPath, trashPath) |
| 334 | } |
| 335 | |
| 336 | func sessionFileHasConversationContent(sessionPath string) bool { |
| 337 | if strings.TrimSpace(sessionPath) == "" || agent.IsCleanupPending(sessionPath) { |
| 338 | return false |
| 339 | } |
| 340 | info, err := os.Stat(sessionPath) |
| 341 | if err != nil || info.IsDir() || info.Size() == 0 { |
| 342 | return false |
| 343 | } |
| 344 | session, err := agent.LoadSession(sessionPath) |
| 345 | if err != nil { |
| 346 | return false |
| 347 | } |
| 348 | return session.HasContent() |
| 349 | } |
| 350 | |
| 351 | func trashSessionArtifactsBeforeMove(dir, sessionPath, key string, beforeMove func()) error { |
| 352 | if err := validateSessionTrashTarget(dir, sessionPath, key); err != nil { |
| 353 | return err |
| 354 | } |
| 355 | target, err := prepareSessionTrashTarget(dir, sessionPath, key) |
| 356 | if err != nil { |
| 357 | return err |
| 358 | } |
| 359 | if !target.shouldMove { |
| 360 | return agent.ClearCleanupPending(sessionPath) |
| 361 | } |
| 362 | // Acquired after prepareSessionTrashTarget: the duplicate-trash path in |
| 363 | // there takes its own removal guard, and the guard is not reentrant. |
| 364 | guard, err := acquireSessionRemovalGuard(sessionPath) |
| 365 | if err != nil { |
| 366 | return err |
| 367 | } |
| 368 | defer guard.Release() |
| 369 | if err := invalidateTopicDirMarkers(dir); err != nil { |
| 370 | return err |
| 371 | } |
| 372 | itemDir := target.itemDir |
| 373 | if target.allocateUnique { |
| 374 | itemDir, err = reserveUniqueSessionTrashItemDir(dir, key) |
| 375 | if err != nil { |
| 376 | return err |
| 377 | } |
| 378 | } else if err := os.MkdirAll(itemDir, 0o755); err != nil { |
| 379 | return err |
| 380 | } |
| 381 | if beforeMove != nil { |
| 382 | beforeMove() |
| 383 | } |
| 384 | for _, artifact := range sessionTrashArtifacts(sessionPath, key) { |
| 385 | if err := movePathIfExists(artifact.src, filepath.Join(itemDir, artifact.name)); err != nil { |
| 386 | return err |
| 387 | } |
| 388 | } |
| 389 | if err := trashSubagentArtifacts(dir, sessionPath, itemDir); err != nil { |
| 390 | return err |
| 391 | } |
| 392 | if err := guard.RemoveSidecarsAndRelease(); err != nil { |
| 393 | return err |
| 394 | } |
| 395 | meta := trashedSessionMeta{Key: key, DeletedAt: time.Now().UnixMilli(), Kind: "deleted"} |
| 396 | b, err := json.MarshalIndent(meta, "", " ") |
| 397 | if err != nil { |
| 398 | return err |
| 399 | } |
| 400 | if err := os.WriteFile(filepath.Join(itemDir, sessionTrashMetaFile), b, 0o644); err != nil { |
| 401 | return err |
| 402 | } |
| 403 | if err := agent.ClearCleanupPending(sessionPath); err != nil { |
| 404 | return err |
| 405 | } |
| 406 | return nil |
| 407 | } |
| 408 | |
| 409 | func listTrashedSessionFiles(dir string) ([]string, error) { |
| 410 | root := sessionTrashPath(dir) |
| 411 | entries, err := os.ReadDir(root) |
| 412 | if err != nil { |
| 413 | if os.IsNotExist(err) { |
| 414 | return []string{}, nil |
| 415 | } |
| 416 | return nil, err |
| 417 | } |
| 418 | paths := []string{} |
| 419 | for _, e := range entries { |
| 420 | if !e.IsDir() { |
| 421 | continue |
| 422 | } |
| 423 | itemDir := filepath.Join(root, e.Name()) |
| 424 | keys := []string{} |
| 425 | if b, err := readFileUTF8(filepath.Join(itemDir, sessionTrashMetaFile)); err == nil { |
| 426 | var meta trashedSessionMeta |
| 427 | if json.Unmarshal(b, &meta) == nil && store.IsSessionTranscriptName(meta.Key) { |
| 428 | keys = append(keys, meta.Key) |
| 429 | } |
| 430 | } |
| 431 | if store.IsSessionTranscriptName(e.Name()) { |
| 432 | keys = append(keys, e.Name()) |
| 433 | } |
| 434 | for _, key := range keys { |
| 435 | path := filepath.Join(itemDir, key) |
| 436 | validPath, _, _, err := validateTrashedSessionPath(dir, path) |
| 437 | if err != nil { |
| 438 | continue |
| 439 | } |
| 440 | if info, err := os.Stat(validPath); err == nil && !info.IsDir() { |
| 441 | paths = append(paths, validPath) |
| 442 | break |
| 443 | } |
| 444 | } |
| 445 | } |
| 446 | return paths, nil |
| 447 | } |
| 448 | |
| 449 | func trashedSessionDeletedAt(path string) int64 { |
| 450 | b, err := readFileUTF8(filepath.Join(filepath.Dir(path), sessionTrashMetaFile)) |
| 451 | if err != nil { |
| 452 | return 0 |
| 453 | } |
| 454 | var meta trashedSessionMeta |
| 455 | if err := json.Unmarshal(b, &meta); err != nil { |
| 456 | return 0 |
| 457 | } |
| 458 | return meta.DeletedAt |
| 459 | } |
| 460 | |
| 461 | func purgeTrashedSessionFile(dir, path string) error { |
| 462 | _, key, itemDir, err := validateTrashedSessionPath(dir, path) |
| 463 | if err != nil { |
| 464 | return err |
| 465 | } |
| 466 | if err := os.RemoveAll(itemDir); err != nil { |
| 467 | return err |
| 468 | } |
| 469 | if err := updateSessionTitles(dir, func(m map[string]string) bool { |
| 470 | if _, ok := m[key]; !ok { |
| 471 | return false |
| 472 | } |
| 473 | delete(m, key) |
| 474 | return true |
| 475 | }); err != nil { |
| 476 | return err |
| 477 | } |
| 478 | if err := removeSessionDisplayKey(dir, key); err != nil { |
| 479 | return err |
| 480 | } |
| 481 | if err := removeSessionPlannerDisplay(dir, key); err != nil { |
| 482 | return err |
| 483 | } |
| 484 | return nil |
| 485 | } |
| 486 | |
| 487 | func movePathIfExists(src, dst string) error { |
| 488 | if _, err := os.Lstat(src); os.IsNotExist(err) { |
| 489 | return nil |
| 490 | } else if err != nil { |
| 491 | return err |
| 492 | } |
| 493 | if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil { |
| 494 | return err |
| 495 | } |
| 496 | // Try os.Rename first — it's atomic and fast when it works. |
| 497 | if err := os.Rename(src, dst); err == nil { |
| 498 | return nil |
| 499 | } else if sourcePathMissing(src) { |
| 500 | return nil |
| 501 | } else if !isRenameCrossDeviceOrBusy(err) { |
| 502 | return err |
| 503 | } |
| 504 | // Fallback: copy then remove. This handles cross-device moves and the |
| 505 | // Windows case where a directory rename fails because a handle is briefly |
| 506 | // held open (e.g. antivirus scan, indexing, or a just-closed file). |
| 507 | return copyAndRemove(src, dst) |
| 508 | } |
| 509 | |
| 510 | // isRenameCrossDeviceOrBusy reports whether err is a cross-device rename or |
| 511 | // a "file busy" error that a copy+remove fallback can recover from. |
| 512 | func isRenameCrossDeviceOrBusy(err error) bool { |
| 513 | if err == nil { |
| 514 | return false |
| 515 | } |
| 516 | // Cross-device link. |
| 517 | le := &os.LinkError{} |
| 518 | if errors.As(err, &le) { |
| 519 | if errors.Is(le.Err, syscall.EXDEV) { |
| 520 | return true |
| 521 | } |
| 522 | // Windows: "The process cannot access the file because it is being used by another process." |
| 523 | var errno syscall.Errno |
| 524 | if errors.As(le.Err, &errno) { |
| 525 | return errno == 32 // ERROR_SHARING_VIOLATION |
| 526 | } |
| 527 | } |
| 528 | return false |
| 529 | } |
| 530 | |
| 531 | func sourcePathMissing(src string) bool { |
| 532 | if strings.TrimSpace(src) == "" { |
| 533 | return true |
| 534 | } |
| 535 | _, err := os.Lstat(src) |
| 536 | return os.IsNotExist(err) |
| 537 | } |
| 538 | |
| 539 | // copyPathFn is a seam for tests to simulate a source vanishing mid-copy. |
| 540 | var copyPathFn = copyPath |
| 541 | |
| 542 | // copyAndRemove recursively copies src to dst, then removes src. Used as a |
| 543 | // fallback when os.Rename fails (cross-device or Windows file-lock races). |
| 544 | func copyAndRemove(src, dst string) error { |
| 545 | if err := copyPathFn(src, dst); err != nil { |
| 546 | if sourcePathMissing(src) { |
| 547 | // The source vanished mid-copy; drop the partial destination so |
| 548 | // the trash never keeps a truncated artifact that a later restore |
| 549 | // would resurrect as a corrupted transcript. |
| 550 | _ = os.RemoveAll(dst) |
| 551 | return nil |
| 552 | } |
| 553 | return err |
| 554 | } |
| 555 | // On Windows, wait briefly for any file handle release. |
| 556 | time.Sleep(10 * time.Millisecond) |
| 557 | return os.RemoveAll(src) |
| 558 | } |
| 559 | |
| 560 | func copyPath(src, dst string) error { |
| 561 | info, err := os.Lstat(src) |
| 562 | if err != nil { |
| 563 | if os.IsNotExist(err) { |
| 564 | return nil |
| 565 | } |
| 566 | return err |
| 567 | } |
| 568 | mode := info.Mode() |
| 569 | switch { |
| 570 | case mode&os.ModeSymlink != 0: |
| 571 | return copySymlink(src, dst) |
| 572 | case mode.IsDir(): |
| 573 | return copyDir(src, dst, mode.Perm()) |
| 574 | case mode.IsRegular(): |
| 575 | return copyFile(src, dst, mode.Perm()) |
| 576 | default: |
| 577 | return fmt.Errorf("unsupported file type in rename fallback: %s", src) |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | func copyDir(src, dst string, mode os.FileMode) error { |
| 582 | if err := os.MkdirAll(dst, mode); err != nil { |
| 583 | return err |
| 584 | } |
| 585 | entries, err := os.ReadDir(src) |
| 586 | if err != nil { |
| 587 | if os.IsNotExist(err) { |
| 588 | _ = os.RemoveAll(dst) |
| 589 | return nil |
| 590 | } |
| 591 | return err |
| 592 | } |
| 593 | for _, e := range entries { |
| 594 | srcPath := filepath.Join(src, e.Name()) |
| 595 | dstPath := filepath.Join(dst, e.Name()) |
| 596 | if err := copyPath(srcPath, dstPath); err != nil { |
| 597 | return err |
| 598 | } |
| 599 | } |
| 600 | return nil |
| 601 | } |
| 602 | |
| 603 | func copyFile(src, dst string, mode os.FileMode) error { |
| 604 | // Open source file. |
| 605 | in, err := os.Open(src) |
| 606 | if err != nil { |
| 607 | if os.IsNotExist(err) { |
| 608 | return nil |
| 609 | } |
| 610 | return err |
| 611 | } |
| 612 | // Create destination file. |
| 613 | out, err := os.OpenFile(dst, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, mode) |
| 614 | if err != nil { |
| 615 | in.Close() |
| 616 | return err |
| 617 | } |
| 618 | // Copy content. |
| 619 | _, err = io.Copy(out, in) |
| 620 | // Close both files before any removal. |
| 621 | closeErr := out.Close() |
| 622 | in.Close() |
| 623 | if err != nil { |
| 624 | return err |
| 625 | } |
| 626 | if closeErr != nil { |
| 627 | return closeErr |
| 628 | } |
| 629 | return nil |
| 630 | } |
| 631 | |
| 632 | func copySymlink(src, dst string) error { |
| 633 | target, err := os.Readlink(src) |
| 634 | if err != nil { |
| 635 | if os.IsNotExist(err) { |
| 636 | return nil |
| 637 | } |
| 638 | return err |
| 639 | } |
| 640 | return os.Symlink(target, dst) |
| 641 | } |
| 642 | |
| 643 | func trashSubagentArtifacts(dir, sessionPath, itemDir string) error { |
| 644 | artifacts, err := agent.ListSubagentsByParent(dir, agent.BranchID(sessionPath)) |
| 645 | if err != nil { |
| 646 | return err |
| 647 | } |
| 648 | trashSubagentDir := filepath.Join(itemDir, "subagents") |
| 649 | for _, artifact := range artifacts { |
| 650 | paths := []string{artifact.SessionPath, artifact.MetaPath} |
| 651 | paths = append(paths, store.SessionSidecarFiles(artifact.SessionPath)...) |
| 652 | for _, src := range paths { |
| 653 | if strings.TrimSpace(src) == "" { |
| 654 | continue |
| 655 | } |
| 656 | if err := movePathIfExists(src, filepath.Join(trashSubagentDir, filepath.Base(src))); err != nil { |
| 657 | return err |
| 658 | } |
| 659 | } |
| 660 | } |
| 661 | return nil |
| 662 | } |
| 663 | |
| 664 | func checkRestoreSubagentConflicts(dir, itemDir string) error { |
| 665 | trashSubagentDir := filepath.Join(itemDir, "subagents") |
| 666 | entries, err := os.ReadDir(trashSubagentDir) |
| 667 | if err != nil { |
| 668 | if os.IsNotExist(err) { |
| 669 | return nil |
| 670 | } |
| 671 | return err |
| 672 | } |
| 673 | for _, entry := range entries { |
| 674 | if entry.IsDir() { |
| 675 | continue |
| 676 | } |
| 677 | target := filepath.Join(dir, "subagents", entry.Name()) |
| 678 | if _, err := os.Stat(target); err == nil { |
| 679 | return fmt.Errorf("subagent artifact already exists: %s", entry.Name()) |
| 680 | } else if !os.IsNotExist(err) { |
| 681 | return err |
| 682 | } |
| 683 | } |
| 684 | return nil |
| 685 | } |
| 686 | |
| 687 | func restoreSubagentArtifacts(dir, itemDir string) error { |
| 688 | trashSubagentDir := filepath.Join(itemDir, "subagents") |
| 689 | entries, err := os.ReadDir(trashSubagentDir) |
| 690 | if err != nil { |
| 691 | if os.IsNotExist(err) { |
| 692 | return nil |
| 693 | } |
| 694 | return err |
| 695 | } |
| 696 | for _, entry := range entries { |
| 697 | if entry.IsDir() { |
| 698 | continue |
| 699 | } |
| 700 | if err := movePathIfExists(filepath.Join(trashSubagentDir, entry.Name()), filepath.Join(dir, "subagents", entry.Name())); err != nil { |
| 701 | return err |
| 702 | } |
| 703 | } |
| 704 | return nil |
| 705 | } |
| 706 | |
| 707 | func validateSessionPath(dir, sessionPath string) (string, string, error) { |
| 708 | if strings.TrimSpace(sessionPath) == "" { |
| 709 | return "", "", fmt.Errorf("empty session path") |
| 710 | } |
| 711 | absDir, err := filepath.Abs(dir) |
| 712 | if err != nil { |
| 713 | return "", "", err |
| 714 | } |
| 715 | path := sessionPath |
| 716 | if !filepath.IsAbs(path) { |
| 717 | path = filepath.Join(absDir, path) |
| 718 | } |
| 719 | absPath, err := filepath.Abs(path) |
| 720 | if err != nil { |
| 721 | return "", "", err |
| 722 | } |
| 723 | if !isLegacySessionTranscriptName(filepath.Base(absPath)) { |
| 724 | return "", "", fmt.Errorf("not a session file: %s", sessionPath) |
| 725 | } |
| 726 | rel, err := filepath.Rel(absDir, absPath) |
| 727 | if err != nil || rel == "." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) || rel == ".." || filepath.IsAbs(rel) { |
| 728 | return "", "", fmt.Errorf("session path outside session dir: %s", sessionPath) |
| 729 | } |
| 730 | if info, err := os.Lstat(absPath); err == nil { |
| 731 | if info.IsDir() { |
| 732 | return "", "", fmt.Errorf("not a session file: %s", sessionPath) |
| 733 | } |
| 734 | realDir, dirErr := filepath.EvalSymlinks(absDir) |
| 735 | if dirErr != nil { |
| 736 | realDir = absDir |
| 737 | } |
| 738 | realPath, err := filepath.EvalSymlinks(absPath) |
| 739 | if err != nil { |
| 740 | return "", "", err |
| 741 | } |
| 742 | rel, err := filepath.Rel(realDir, realPath) |
| 743 | if err != nil || rel == "." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) || rel == ".." || filepath.IsAbs(rel) { |
| 744 | return "", "", fmt.Errorf("session path escapes session dir: %s", sessionPath) |
| 745 | } |
| 746 | } else if !os.IsNotExist(err) { |
| 747 | return "", "", err |
| 748 | } |
| 749 | return absPath, filepath.Base(absPath), nil |
| 750 | } |
| 751 | |
| 752 | func validateTrashedSessionPath(dir, sessionPath string) (string, string, string, error) { |
| 753 | if strings.TrimSpace(sessionPath) == "" { |
| 754 | return "", "", "", fmt.Errorf("empty session path") |
| 755 | } |
| 756 | root, err := filepath.Abs(sessionTrashPath(dir)) |
| 757 | if err != nil { |
| 758 | return "", "", "", err |
| 759 | } |
| 760 | path := sessionPath |
| 761 | if !filepath.IsAbs(path) { |
| 762 | path = filepath.Join(root, path) |
| 763 | } |
| 764 | absPath, err := filepath.Abs(path) |
| 765 | if err != nil { |
| 766 | return "", "", "", err |
| 767 | } |
| 768 | if !isLegacySessionTranscriptName(filepath.Base(absPath)) { |
| 769 | return "", "", "", fmt.Errorf("not a session file: %s", sessionPath) |
| 770 | } |
| 771 | rel, err := filepath.Rel(root, absPath) |
| 772 | if err != nil || rel == "." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) || rel == ".." || filepath.IsAbs(rel) { |
| 773 | return "", "", "", fmt.Errorf("session path outside trash dir: %s", sessionPath) |
| 774 | } |
| 775 | parts := strings.Split(rel, string(filepath.Separator)) |
| 776 | if len(parts) != 2 { |
| 777 | return "", "", "", fmt.Errorf("invalid trash session path: %s", sessionPath) |
| 778 | } |
| 779 | if parts[0] != parts[1] { |
| 780 | b, err := readFileUTF8(filepath.Join(root, parts[0], sessionTrashMetaFile)) |
| 781 | if err != nil { |
| 782 | return "", "", "", fmt.Errorf("invalid trash session path: %s", sessionPath) |
| 783 | } |
| 784 | var meta trashedSessionMeta |
| 785 | if err := json.Unmarshal(b, &meta); err != nil || meta.Key != parts[1] { |
| 786 | return "", "", "", fmt.Errorf("invalid trash session path: %s", sessionPath) |
| 787 | } |
| 788 | } |
| 789 | if info, err := os.Lstat(absPath); err == nil { |
| 790 | if info.IsDir() { |
| 791 | return "", "", "", fmt.Errorf("not a session file: %s", sessionPath) |
| 792 | } |
| 793 | realRoot, dirErr := filepath.EvalSymlinks(root) |
| 794 | if dirErr != nil { |
| 795 | realRoot = root |
| 796 | } |
| 797 | realPath, err := filepath.EvalSymlinks(absPath) |
| 798 | if err != nil { |
| 799 | return "", "", "", err |
| 800 | } |
| 801 | rel, err := filepath.Rel(realRoot, realPath) |
| 802 | if err != nil || rel == "." || strings.HasPrefix(rel, ".."+string(filepath.Separator)) || rel == ".." || filepath.IsAbs(rel) { |
| 803 | return "", "", "", fmt.Errorf("session path escapes trash dir: %s", sessionPath) |
| 804 | } |
| 805 | } else if !os.IsNotExist(err) { |
| 806 | return "", "", "", err |
| 807 | } |
| 808 | return absPath, filepath.Base(absPath), filepath.Dir(absPath), nil |
| 809 | } |
| 810 | |
| 811 | type sessionDisplayMap map[string]map[string]string |
| 812 | |
| 813 | type sessionPlannerDisplayMap map[string][]plannerDisplayTurn |
| 814 | |
| 815 | type plannerDisplayTurn struct { |
| 816 | TurnID string `json:"turnId,omitempty"` |
| 817 | UserHash string `json:"userHash"` |
| 818 | Messages []HistoryMessage `json:"messages"` |
| 819 | } |
| 820 | |
| 821 | var errCorruptSessionPlannerDisplay = errors.New("corrupt planner display sidecar") |
| 822 | |
| 823 | // sessionPlannerDisplayUpdateAfterLoad is a subprocess-test seam. Production |
| 824 | // leaves it nil; tests use it to force two independent processes into the old |
| 825 | // stale read-modify-write window without relying on scheduler timing. |
| 826 | var sessionPlannerDisplayUpdateAfterLoad func() |
| 827 | |
| 828 | func messageDisplayKey(content string) string { |
| 829 | sum := sha256.Sum256([]byte(content)) |
| 830 | return fmt.Sprintf("%x", sum[:]) |
| 831 | } |
| 832 | |
| 833 | func loadSessionDisplays(dir string) sessionDisplayMap { |
| 834 | m := sessionDisplayMap{} |
| 835 | b, err := readFileUTF8(sessionDisplayPath(dir)) |
| 836 | if err != nil { |
| 837 | return m |
| 838 | } |
| 839 | _ = json.Unmarshal(b, &m) |
| 840 | return m |
| 841 | } |
| 842 | |
| 843 | func sessionPlannerDisplayPath(dir string) string { |
| 844 | return filepath.Join(dir, sessionPlannerDisplayFile) |
| 845 | } |
| 846 | |
| 847 | func loadSessionPlannerDisplays(dir string) sessionPlannerDisplayMap { |
| 848 | m := sessionPlannerDisplayMap{} |
| 849 | if strings.TrimSpace(dir) == "" { |
| 850 | return m |
| 851 | } |
| 852 | b, err := readFileUTF8(sessionPlannerDisplayPath(dir)) |
| 853 | if err != nil { |
| 854 | return m |
| 855 | } |
| 856 | _ = json.Unmarshal(b, &m) |
| 857 | return m |
| 858 | } |
| 859 | |
| 860 | func loadSessionPlannerDisplaysForUpdate(dir string) (sessionPlannerDisplayMap, error) { |
| 861 | m := sessionPlannerDisplayMap{} |
| 862 | b, err := readFileUTF8(sessionPlannerDisplayPath(dir)) |
| 863 | if err != nil { |
| 864 | if errors.Is(err, os.ErrNotExist) { |
| 865 | return m, nil |
| 866 | } |
| 867 | return nil, err |
| 868 | } |
| 869 | if err := json.Unmarshal(b, &m); err != nil { |
| 870 | return nil, fmt.Errorf("%w: %w", errCorruptSessionPlannerDisplay, err) |
| 871 | } |
| 872 | if m == nil { |
| 873 | m = sessionPlannerDisplayMap{} |
| 874 | } |
| 875 | return m, nil |
| 876 | } |
| 877 | |
| 878 | func saveSessionPlannerDisplays(dir string, m sessionPlannerDisplayMap) error { |
| 879 | b, err := json.MarshalIndent(m, "", " ") |
| 880 | if err != nil { |
| 881 | return err |
| 882 | } |
| 883 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 884 | return err |
| 885 | } |
| 886 | return fileutil.AtomicWriteFile(sessionPlannerDisplayPath(dir), b, 0o600) |
| 887 | } |
| 888 | |
| 889 | func saveOrRemoveSessionPlannerDisplays(dir string, m sessionPlannerDisplayMap) error { |
| 890 | if len(m) == 0 { |
| 891 | err := os.Remove(sessionPlannerDisplayPath(dir)) |
| 892 | if os.IsNotExist(err) { |
| 893 | return nil |
| 894 | } |
| 895 | return err |
| 896 | } |
| 897 | return saveSessionPlannerDisplays(dir, m) |
| 898 | } |
| 899 | |
| 900 | func updateSessionPlannerDisplays(dir string, recoverCorrupt bool, mutate func(sessionPlannerDisplayMap) bool) error { |
| 901 | if strings.TrimSpace(dir) == "" { |
| 902 | return errors.New("planner display directory is empty") |
| 903 | } |
| 904 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 905 | return err |
| 906 | } |
| 907 | ctx, cancel := context.WithTimeout(context.Background(), sessionSidecarQueueTimeout) |
| 908 | defer cancel() |
| 909 | release, err := filelock.AcquireWithExternalTimeout(ctx, sessionPlannerDisplayPath(dir)+".lock", sessionPlannerDisplayExternalLockTimeout) |
| 910 | if err != nil { |
| 911 | return fmt.Errorf("lock planner display sidecar: %w", err) |
| 912 | } |
| 913 | defer release() |
| 914 | |
| 915 | m, err := loadSessionPlannerDisplaysForUpdate(dir) |
| 916 | if err != nil { |
| 917 | if !recoverCorrupt || !errors.Is(err, errCorruptSessionPlannerDisplay) { |
| 918 | return err |
| 919 | } |
| 920 | // A corrupt shared map cannot be edited safely. Destructive cleanup is |
| 921 | // allowed to retire the unreadable sidecar so deleted-session display |
| 922 | // data does not linger and later records can start from a valid map. |
| 923 | if removeErr := os.Remove(sessionPlannerDisplayPath(dir)); removeErr != nil && !os.IsNotExist(removeErr) { |
| 924 | return errors.Join(err, removeErr) |
| 925 | } |
| 926 | m = sessionPlannerDisplayMap{} |
| 927 | } |
| 928 | if sessionPlannerDisplayUpdateAfterLoad != nil { |
| 929 | sessionPlannerDisplayUpdateAfterLoad() |
| 930 | } |
| 931 | if !mutate(m) { |
| 932 | return nil |
| 933 | } |
| 934 | return saveOrRemoveSessionPlannerDisplays(dir, m) |
| 935 | } |
| 936 | |
| 937 | func recordSessionPlannerDisplay(dir, sessionPath, userContent string, messages []HistoryMessage) error { |
| 938 | return recordSessionPlannerDisplayForTurn(dir, sessionPath, "", userContent, messages) |
| 939 | } |
| 940 | |
| 941 | func recordSessionPlannerDisplayForTurn(dir, sessionPath, turnID, userContent string, messages []HistoryMessage) error { |
| 942 | if strings.TrimSpace(sessionPath) == "" || strings.TrimSpace(userContent) == "" || len(messages) == 0 { |
| 943 | return nil |
| 944 | } |
| 945 | key := filepath.Base(sessionPath) |
| 946 | turn := plannerDisplayTurn{ |
| 947 | TurnID: strings.TrimSpace(turnID), |
| 948 | UserHash: messageDisplayKey(userContent), |
| 949 | Messages: cloneHistoryMessages(messages), |
| 950 | } |
| 951 | return updateSessionPlannerDisplays(dir, false, func(m sessionPlannerDisplayMap) bool { |
| 952 | if turn.TurnID != "" { |
| 953 | for i := range m[key] { |
| 954 | if m[key][i].TurnID == turn.TurnID { |
| 955 | m[key][i] = turn |
| 956 | return true |
| 957 | } |
| 958 | } |
| 959 | } |
| 960 | m[key] = append(m[key], turn) |
| 961 | return true |
| 962 | }) |
| 963 | } |
| 964 | |
| 965 | func removeSessionPlannerDisplay(dir, sessionPath string) error { |
| 966 | if strings.TrimSpace(sessionPath) == "" { |
| 967 | return nil |
| 968 | } |
| 969 | key := filepath.Base(sessionPath) |
| 970 | return updateSessionPlannerDisplays(dir, true, func(m sessionPlannerDisplayMap) bool { |
| 971 | if _, ok := m[key]; !ok { |
| 972 | return false |
| 973 | } |
| 974 | delete(m, key) |
| 975 | return true |
| 976 | }) |
| 977 | } |
| 978 | |
| 979 | func pruneSessionPlannerDisplays(dir string, protected map[string]struct{}) error { |
| 980 | return updateSessionPlannerDisplays(dir, true, func(m sessionPlannerDisplayMap) bool { |
| 981 | changed := false |
| 982 | for key := range m { |
| 983 | if sessionDisplayKeyStillOwned(dir, key, protected) { |
| 984 | continue |
| 985 | } |
| 986 | delete(m, key) |
| 987 | changed = true |
| 988 | } |
| 989 | return changed |
| 990 | }) |
| 991 | } |
| 992 | |
| 993 | func sessionPlannerDisplayTurns(dir, sessionPath string) []plannerDisplayTurn { |
| 994 | if strings.TrimSpace(dir) == "" || strings.TrimSpace(sessionPath) == "" { |
| 995 | return nil |
| 996 | } |
| 997 | turns := loadSessionPlannerDisplays(dir)[filepath.Base(sessionPath)] |
| 998 | if len(turns) == 0 { |
| 999 | return nil |
| 1000 | } |
| 1001 | out := make([]plannerDisplayTurn, 0, len(turns)) |
| 1002 | for _, turn := range turns { |
| 1003 | if strings.TrimSpace(turn.UserHash) == "" || len(turn.Messages) == 0 { |
| 1004 | continue |
| 1005 | } |
| 1006 | out = append(out, plannerDisplayTurn{ |
| 1007 | TurnID: turn.TurnID, |
| 1008 | UserHash: turn.UserHash, |
| 1009 | Messages: cloneHistoryMessages(turn.Messages), |
| 1010 | }) |
| 1011 | } |
| 1012 | return out |
| 1013 | } |
| 1014 | |
| 1015 | func saveSessionDisplays(dir string, m sessionDisplayMap) error { |
| 1016 | b, err := json.MarshalIndent(m, "", " ") |
| 1017 | if err != nil { |
| 1018 | return err |
| 1019 | } |
| 1020 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 1021 | return err |
| 1022 | } |
| 1023 | return fileutil.AtomicWriteFile(sessionDisplayPath(dir), b, 0o600) |
| 1024 | } |
| 1025 | |
| 1026 | func saveOrRemoveSessionDisplays(dir string, m sessionDisplayMap) error { |
| 1027 | if len(m) == 0 { |
| 1028 | err := os.Remove(sessionDisplayPath(dir)) |
| 1029 | if os.IsNotExist(err) { |
| 1030 | return nil |
| 1031 | } |
| 1032 | return err |
| 1033 | } |
| 1034 | return saveSessionDisplays(dir, m) |
| 1035 | } |
| 1036 | |
| 1037 | // updateSessionDisplays serializes the display sidecar's read-modify-write |
| 1038 | // cycle. Parallel tabs can record display text concurrently; atomic rename |
| 1039 | // protects readers from partial JSON but cannot prevent the last writer from |
| 1040 | // replacing another tab's freshly added keys (#6873). |
| 1041 | func updateSessionDisplays(dir string, mutate func(sessionDisplayMap) bool) error { |
| 1042 | if strings.TrimSpace(dir) == "" { |
| 1043 | return errors.New("display directory is empty") |
| 1044 | } |
| 1045 | if err := os.MkdirAll(dir, 0o755); err != nil { |
| 1046 | return err |
| 1047 | } |
| 1048 | ctx, cancel := context.WithTimeout(context.Background(), sessionSidecarQueueTimeout) |
| 1049 | defer cancel() |
| 1050 | release, err := filelock.AcquireWithExternalTimeout(ctx, sessionDisplayPath(dir)+".lock", sessionDisplayExternalLockTimeout) |
| 1051 | if err != nil { |
| 1052 | return fmt.Errorf("lock display sidecar: %w", err) |
| 1053 | } |
| 1054 | defer release() |
| 1055 | |
| 1056 | m := loadSessionDisplays(dir) |
| 1057 | if !mutate(m) { |
| 1058 | return nil |
| 1059 | } |
| 1060 | return saveOrRemoveSessionDisplays(dir, m) |
| 1061 | } |
| 1062 | |
| 1063 | func removeSessionDisplayKey(dir, key string) error { |
| 1064 | key = strings.TrimSpace(key) |
| 1065 | if key == "" { |
| 1066 | return nil |
| 1067 | } |
| 1068 | return updateSessionDisplays(dir, func(m sessionDisplayMap) bool { |
| 1069 | if m[key] == nil { |
| 1070 | return false |
| 1071 | } |
| 1072 | delete(m, key) |
| 1073 | return true |
| 1074 | }) |
| 1075 | } |
| 1076 | |
| 1077 | func removeSessionDisplay(dir, sessionPath string) error { |
| 1078 | if strings.TrimSpace(sessionPath) == "" { |
| 1079 | return nil |
| 1080 | } |
| 1081 | return removeSessionDisplayKey(dir, filepath.Base(sessionPath)) |
| 1082 | } |
| 1083 | |
| 1084 | func pruneSessionDisplays(dir string, protected map[string]struct{}) error { |
| 1085 | return updateSessionDisplays(dir, func(m sessionDisplayMap) bool { |
| 1086 | if len(m) == 0 { |
| 1087 | return false |
| 1088 | } |
| 1089 | changed := false |
| 1090 | for key := range m { |
| 1091 | if sessionDisplayKeyStillOwned(dir, key, protected) { |
| 1092 | continue |
| 1093 | } |
| 1094 | delete(m, key) |
| 1095 | changed = true |
| 1096 | } |
| 1097 | return changed |
| 1098 | }) |
| 1099 | } |
| 1100 | |
| 1101 | func sessionDisplayKeyStillOwned(dir, key string, protected map[string]struct{}) bool { |
| 1102 | key = strings.TrimSpace(key) |
| 1103 | if key == "" || filepath.Base(key) != key || !store.IsSessionTranscriptName(key) { |
| 1104 | return false |
| 1105 | } |
| 1106 | if protected != nil { |
| 1107 | if _, ok := protected[key]; ok { |
| 1108 | return true |
| 1109 | } |
| 1110 | } |
| 1111 | sessionPath := filepath.Join(dir, key) |
| 1112 | if info, err := os.Stat(sessionPath); err == nil && !info.IsDir() { |
| 1113 | return true |
| 1114 | } |
| 1115 | trashPath := filepath.Join(sessionTrashPath(dir), key, key) |
| 1116 | if info, err := os.Stat(trashPath); err == nil && !info.IsDir() { |
| 1117 | return true |
| 1118 | } |
| 1119 | if paths, err := listTrashedSessionFiles(dir); err == nil { |
| 1120 | for _, path := range paths { |
| 1121 | if filepath.Base(path) == key { |
| 1122 | return true |
| 1123 | } |
| 1124 | } |
| 1125 | } |
| 1126 | return false |
| 1127 | } |
| 1128 | |
| 1129 | func recordSessionDisplay(dir, sessionPath, content, display string) error { |
| 1130 | if strings.TrimSpace(sessionPath) == "" || content == display || strings.TrimSpace(display) == "" { |
| 1131 | return nil |
| 1132 | } |
| 1133 | return updateSessionDisplays(dir, func(m sessionDisplayMap) bool { |
| 1134 | key := filepath.Base(sessionPath) |
| 1135 | if m[key] == nil { |
| 1136 | m[key] = map[string]string{} |
| 1137 | } |
| 1138 | m[key][messageDisplayKey(content)] = display |
| 1139 | return true |
| 1140 | }) |
| 1141 | } |
| 1142 | |
| 1143 | // sessionDisplayResolver loads the sidecar once and returns a per-message |
| 1144 | // resolver, so a transcript of N messages doesn't re-read .display.json N times. |
| 1145 | func sessionDisplayResolver(dir, sessionPath string) func(content string) string { |
| 1146 | return sessionDisplayResolverFromMap(loadSessionDisplays(dir), sessionPath) |
| 1147 | } |
| 1148 | |
| 1149 | func sessionDisplayResolverFromMap(displays sessionDisplayMap, sessionPath string) func(content string) string { |
| 1150 | byHash := displays[filepath.Base(sessionPath)] |
| 1151 | return func(content string) string { |
| 1152 | if byHash != nil { |
| 1153 | if display := byHash[messageDisplayKey(content)]; strings.TrimSpace(display) != "" { |
| 1154 | return display |
| 1155 | } |
| 1156 | } |
| 1157 | return historyReplayUserContent(content) |
| 1158 | } |
| 1159 | } |
| 1160 | |
| 1161 | func resolveSessionDisplay(dir, sessionPath, content string) string { |
| 1162 | return sessionDisplayResolver(dir, sessionPath)(content) |
| 1163 | } |
| 1164 |