| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "bytes" |
| 5 | "context" |
| 6 | "fmt" |
| 7 | "io" |
| 8 | "os" |
| 9 | "os/exec" |
| 10 | "path/filepath" |
| 11 | "sort" |
| 12 | "strings" |
| 13 | "sync" |
| 14 | "time" |
| 15 | |
| 16 | "reasonix/internal/control" |
| 17 | "reasonix/internal/diff" |
| 18 | "reasonix/internal/gitcmd" |
| 19 | ) |
| 20 | |
| 21 | type gitStatusEntry struct { |
| 22 | Path string |
| 23 | OldPath string |
| 24 | Status string |
| 25 | } |
| 26 | |
| 27 | type workspaceChangeAccumulator struct { |
| 28 | view WorkspaceChangeView |
| 29 | hasSession bool |
| 30 | hasGit bool |
| 31 | } |
| 32 | |
| 33 | const ( |
| 34 | workspaceGitBranchCacheTTL = 2 * time.Second |
| 35 | // Bound both decoded file contents and rendered patches before they cross |
| 36 | // the desktop bridge; generated files must not turn a preview click into OOM. |
| 37 | workspaceChangeDetailLimit = 2 * 1024 * 1024 |
| 38 | ) |
| 39 | |
| 40 | type workspaceGitBranchCacheEntry struct { |
| 41 | branch string |
| 42 | expires time.Time |
| 43 | refreshing bool |
| 44 | request *int |
| 45 | } |
| 46 | |
| 47 | var workspaceGitBranchCache = struct { |
| 48 | sync.Mutex |
| 49 | entries map[string]workspaceGitBranchCacheEntry |
| 50 | }{entries: map[string]workspaceGitBranchCacheEntry{}} |
| 51 | |
| 52 | var workspaceGitBranchForMetaProbe = workspaceGitBranch |
| 53 | |
| 54 | func (a *App) WorkspaceChanges(tabID string) WorkspaceChangesView { |
| 55 | ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second) |
| 56 | defer cancel() |
| 57 | return a.workspaceChanges(ctx, tabID) |
| 58 | } |
| 59 | |
| 60 | func (a *App) workspaceChanges(ctx context.Context, tabID string) WorkspaceChangesView { |
| 61 | out := WorkspaceChangesView{Files: []WorkspaceChangeView{}, GitAvailable: true} |
| 62 | tabID = strings.TrimSpace(tabID) |
| 63 | |
| 64 | workspaceRoot, ctrl, ok := a.workspaceChangesTarget(tabID) |
| 65 | if !ok { |
| 66 | out.GitAvailable = false |
| 67 | out.GitErr = fmt.Sprintf("tab %q not found", tabID) |
| 68 | return out |
| 69 | } |
| 70 | |
| 71 | repo, err := workspaceRepo(workspaceRoot, ctrl) |
| 72 | if err != nil { |
| 73 | out.GitAvailable = false |
| 74 | out.GitErr = err.Error() |
| 75 | return out |
| 76 | } |
| 77 | base := repo.Dir |
| 78 | |
| 79 | out.GitBranch, _ = workspaceGitBranchContext(ctx, repo) |
| 80 | |
| 81 | changes := map[string]*workspaceChangeAccumulator{} |
| 82 | add := func(path string) *workspaceChangeAccumulator { |
| 83 | path = normalizeWorkspaceRelPath(base, path) |
| 84 | if path == "" { |
| 85 | return nil |
| 86 | } |
| 87 | if changes[path] == nil { |
| 88 | changes[path] = &workspaceChangeAccumulator{view: WorkspaceChangeView{Path: path}} |
| 89 | } |
| 90 | return changes[path] |
| 91 | } |
| 92 | |
| 93 | if ctrl != nil { |
| 94 | for _, meta := range ctrl.Checkpoints() { |
| 95 | for _, path := range meta.Paths { |
| 96 | acc := add(path) |
| 97 | if acc == nil { |
| 98 | continue |
| 99 | } |
| 100 | acc.hasSession = true |
| 101 | if len(acc.view.Turns) == 0 || acc.view.Turns[len(acc.view.Turns)-1] != meta.Turn { |
| 102 | acc.view.Turns = append(acc.view.Turns, meta.Turn) |
| 103 | } |
| 104 | if meta.Time.UnixMilli() >= acc.view.LatestTime { |
| 105 | acc.view.LatestPrompt = meta.Prompt |
| 106 | acc.view.LatestTime = meta.Time.UnixMilli() |
| 107 | } |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | gitEntries, gitErr := workspaceGitStatusContext(ctx, repo) |
| 113 | if gitErr != nil { |
| 114 | out.GitAvailable = false |
| 115 | out.GitErr = gitErr.Error() |
| 116 | out.Incomplete = true |
| 117 | } |
| 118 | var untracked []string |
| 119 | for _, entry := range gitEntries { |
| 120 | acc := add(entry.Path) |
| 121 | if acc == nil { |
| 122 | continue |
| 123 | } |
| 124 | acc.hasGit = true |
| 125 | acc.view.GitStatus = entry.Status |
| 126 | acc.view.OldPath = normalizeWorkspaceRelPath(base, entry.OldPath) |
| 127 | if entry.Status == "??" { |
| 128 | untracked = append(untracked, entry.Path) |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | out.Files = make([]WorkspaceChangeView, 0, len(changes)) |
| 133 | for _, acc := range changes { |
| 134 | if acc.hasSession { |
| 135 | acc.view.Sources = append(acc.view.Sources, "session") |
| 136 | // Session-owned files with a recorded preimage can one-click revert |
| 137 | // to the first Reasonix touch (not Git HEAD). |
| 138 | if ctrl != nil { |
| 139 | if state, ok := ctrl.CheckpointFileState(acc.view.Path); ok && state.Owned { |
| 140 | acc.view.CanSessionRevert = true |
| 141 | } |
| 142 | } |
| 143 | } |
| 144 | if acc.hasGit { |
| 145 | acc.view.Sources = append(acc.view.Sources, "git") |
| 146 | } |
| 147 | out.Files = append(out.Files, acc.view) |
| 148 | } |
| 149 | sort.Slice(out.Files, func(i, j int) bool { |
| 150 | a, b := out.Files[i], out.Files[j] |
| 151 | if len(a.Sources) != len(b.Sources) { |
| 152 | return len(a.Sources) > len(b.Sources) |
| 153 | } |
| 154 | return strings.ToLower(a.Path) < strings.ToLower(b.Path) |
| 155 | }) |
| 156 | if out.GitAvailable { |
| 157 | out.Added, out.Removed, out.Incomplete = workspaceGitDiffTally(ctx, repo, untracked) |
| 158 | } |
| 159 | return out |
| 160 | } |
| 161 | |
| 162 | func (a *App) workspaceChangesTarget(tabID string) (string, control.SessionAPI, bool) { |
| 163 | a.mu.RLock() |
| 164 | defer a.mu.RUnlock() |
| 165 | var tab *WorkspaceTab |
| 166 | if tabID == "" { |
| 167 | tab = a.activeTabLocked() |
| 168 | } else { |
| 169 | tab = a.tabs[tabID] |
| 170 | } |
| 171 | if tab == nil { |
| 172 | return "", nil, tabID == "" |
| 173 | } |
| 174 | return tab.WorkspaceRoot, tab.Ctrl, true |
| 175 | } |
| 176 | |
| 177 | func (a *App) workspaceRepoForTab(tabID string) (gitcmd.Repo, error) { |
| 178 | tabID = strings.TrimSpace(tabID) |
| 179 | workspaceRoot, ctrl, ok := a.workspaceChangesTarget(tabID) |
| 180 | if !ok { |
| 181 | return gitcmd.Repo{}, fmt.Errorf("tab %q not found", tabID) |
| 182 | } |
| 183 | return workspaceRepo(workspaceRoot, ctrl) |
| 184 | } |
| 185 | |
| 186 | // WorkspaceChangeDetail returns the current patch for one file in the |
| 187 | // requested tab. Git is authoritative when available because HEAD -> worktree |
| 188 | // includes both staged and unstaged edits. Session checkpoints provide a |
| 189 | // git-free fallback and cover files edited by Reasonix before Git notices them. |
| 190 | func (a *App) WorkspaceChangeDetail(tabID, path string) (WorkspaceChangeDetailView, error) { |
| 191 | workspaceRoot, ctrl, ok := a.workspaceChangesTarget(strings.TrimSpace(tabID)) |
| 192 | if !ok { |
| 193 | return WorkspaceChangeDetailView{}, fmt.Errorf("tab %q not found", tabID) |
| 194 | } |
| 195 | repo, err := workspaceRepo(workspaceRoot, ctrl) |
| 196 | if err != nil { |
| 197 | return WorkspaceChangeDetailView{}, err |
| 198 | } |
| 199 | base := repo.Dir |
| 200 | rel := normalizeWorkspaceRelPath(base, path) |
| 201 | if rel == "" { |
| 202 | return WorkspaceChangeDetailView{}, os.ErrInvalid |
| 203 | } |
| 204 | if _, ok, err := workspacePathForBase(base, filepath.FromSlash(rel)); err != nil || !ok { |
| 205 | if err != nil { |
| 206 | return WorkspaceChangeDetailView{}, err |
| 207 | } |
| 208 | return WorkspaceChangeDetailView{}, os.ErrInvalid |
| 209 | } |
| 210 | |
| 211 | if detail, found := workspaceGitChangeDetail(repo, rel); found { |
| 212 | return detail, nil |
| 213 | } |
| 214 | if ctrl != nil { |
| 215 | if state, found := ctrl.CheckpointFileState(rel); found { |
| 216 | return workspaceCheckpointChangeDetail(base, rel, state.Content) |
| 217 | } |
| 218 | } |
| 219 | return WorkspaceChangeDetailView{}, nil |
| 220 | } |
| 221 | |
| 222 | func workspaceGitChangeDetail(repo gitcmd.Repo, rel string) (WorkspaceChangeDetailView, bool) { |
| 223 | base := repo.Dir |
| 224 | entries, err := workspaceGitStatus(repo) |
| 225 | if err != nil { |
| 226 | return WorkspaceChangeDetailView{}, false |
| 227 | } |
| 228 | var entry *gitStatusEntry |
| 229 | for i := range entries { |
| 230 | if entries[i].Path == rel { |
| 231 | entry = &entries[i] |
| 232 | break |
| 233 | } |
| 234 | } |
| 235 | if entry == nil { |
| 236 | return WorkspaceChangeDetailView{}, false |
| 237 | } |
| 238 | |
| 239 | // Untracked files are omitted by git diff. In an unborn repository HEAD is |
| 240 | // absent as well, so synthesize the same create/delete patch from disk. |
| 241 | if entry.Status == "??" || !workspaceGitHasHead(repo) { |
| 242 | detail, err := workspaceCheckpointChangeDetail(base, rel, nil) |
| 243 | if err != nil { |
| 244 | return WorkspaceChangeDetailView{}, false |
| 245 | } |
| 246 | detail.Source = "git" |
| 247 | return detail, true |
| 248 | } |
| 249 | |
| 250 | args := []string{"-C", base, "diff", "--no-ext-diff", "--no-textconv", "--relative", "HEAD", "--", filepath.FromSlash(rel)} |
| 251 | if entry.OldPath != "" && entry.OldPath != rel { |
| 252 | args = append(args, filepath.FromSlash(entry.OldPath)) |
| 253 | } |
| 254 | raw, truncated, err := workspaceGitDiffOutput(repo, args...) |
| 255 | if err != nil { |
| 256 | return WorkspaceChangeDetailView{}, false |
| 257 | } |
| 258 | if truncated { |
| 259 | return WorkspaceChangeDetailView{Source: "git", Truncated: true}, true |
| 260 | } |
| 261 | patch := strings.TrimSpace(string(raw)) |
| 262 | if patch == "" { |
| 263 | return WorkspaceChangeDetailView{}, false |
| 264 | } |
| 265 | added, removed := tallyUnifiedPatch(patch) |
| 266 | binary := strings.Contains(patch, "Binary files ") || strings.Contains(patch, "GIT binary patch") |
| 267 | return WorkspaceChangeDetailView{Diff: &patch, Source: "git", Added: added, Removed: removed, Binary: binary}, true |
| 268 | } |
| 269 | |
| 270 | func workspaceGitHasHead(repo gitcmd.Repo) bool { |
| 271 | return workspaceGit(repo, "-C", repo.Dir, "rev-parse", "--verify", "HEAD").Run() == nil |
| 272 | } |
| 273 | |
| 274 | func workspaceGitDiffOutput(repo gitcmd.Repo, args ...string) ([]byte, bool, error) { |
| 275 | cmd := workspaceGit(repo, args...) |
| 276 | stdout, err := cmd.StdoutPipe() |
| 277 | if err != nil { |
| 278 | return nil, false, err |
| 279 | } |
| 280 | cmd.Stderr = io.Discard |
| 281 | if err := cmd.Start(); err != nil { |
| 282 | _ = stdout.Close() |
| 283 | return nil, false, err |
| 284 | } |
| 285 | raw, readErr := io.ReadAll(io.LimitReader(stdout, workspaceChangeDetailLimit+1)) |
| 286 | if readErr != nil { |
| 287 | _ = stdout.Close() |
| 288 | if cmd.Process != nil { |
| 289 | _ = cmd.Process.Kill() |
| 290 | } |
| 291 | _ = cmd.Wait() |
| 292 | return nil, false, readErr |
| 293 | } |
| 294 | if len(raw) > workspaceChangeDetailLimit { |
| 295 | _ = stdout.Close() |
| 296 | if cmd.Process != nil { |
| 297 | _ = cmd.Process.Kill() |
| 298 | } |
| 299 | _ = cmd.Wait() |
| 300 | return nil, true, nil |
| 301 | } |
| 302 | waitErr := cmd.Wait() |
| 303 | if waitErr != nil { |
| 304 | return nil, false, waitErr |
| 305 | } |
| 306 | return raw, false, nil |
| 307 | } |
| 308 | |
| 309 | func workspaceCheckpointChangeDetail(base, rel string, old *string) (WorkspaceChangeDetailView, error) { |
| 310 | path, ok, err := workspacePathForBase(base, filepath.FromSlash(rel)) |
| 311 | if err != nil || !ok { |
| 312 | return WorkspaceChangeDetailView{}, err |
| 313 | } |
| 314 | oldText := "" |
| 315 | if old != nil { |
| 316 | if len(*old) > workspaceChangeDetailLimit { |
| 317 | return WorkspaceChangeDetailView{Source: "session", Truncated: true}, nil |
| 318 | } |
| 319 | oldText = *old |
| 320 | } |
| 321 | newText, exists, truncated, err := workspaceCurrentText(path) |
| 322 | if err != nil { |
| 323 | return WorkspaceChangeDetailView{}, err |
| 324 | } |
| 325 | if truncated { |
| 326 | return WorkspaceChangeDetailView{Source: "session", Truncated: true}, nil |
| 327 | } |
| 328 | kind := diff.Modify |
| 329 | if old == nil { |
| 330 | kind = diff.Create |
| 331 | } else if !exists { |
| 332 | kind = diff.Delete |
| 333 | } |
| 334 | change := diff.Build(rel, oldText, newText, kind) |
| 335 | if len(change.Diff) > workspaceChangeDetailLimit { |
| 336 | return WorkspaceChangeDetailView{Source: "session", Truncated: true}, nil |
| 337 | } |
| 338 | if change.Diff == "" && !change.Binary { |
| 339 | return WorkspaceChangeDetailView{Source: "session"}, nil |
| 340 | } |
| 341 | patch := change.Diff |
| 342 | return WorkspaceChangeDetailView{ |
| 343 | Diff: &patch, |
| 344 | Source: "session", |
| 345 | Added: change.Added, |
| 346 | Removed: change.Removed, |
| 347 | Binary: change.Binary, |
| 348 | }, nil |
| 349 | } |
| 350 | |
| 351 | func workspaceCurrentText(path string) (string, bool, bool, error) { |
| 352 | info, err := os.Lstat(path) |
| 353 | if os.IsNotExist(err) { |
| 354 | return "", false, false, nil |
| 355 | } |
| 356 | if err != nil { |
| 357 | return "", false, false, err |
| 358 | } |
| 359 | if info.Mode()&os.ModeSymlink != 0 { |
| 360 | target, err := os.Readlink(path) |
| 361 | return target, true, false, err |
| 362 | } |
| 363 | if !info.Mode().IsRegular() { |
| 364 | return "", true, false, fmt.Errorf("workspace change path %q is not a regular file", path) |
| 365 | } |
| 366 | raw, truncated, err := readFileUTF8Limit(path, workspaceChangeDetailLimit) |
| 367 | return string(raw), true, truncated, err |
| 368 | } |
| 369 | |
| 370 | func tallyUnifiedPatch(patch string) (added, removed int) { |
| 371 | inHunk := false |
| 372 | for line := range strings.SplitSeq(patch, "\n") { |
| 373 | switch { |
| 374 | case strings.HasPrefix(line, "@@"): |
| 375 | inHunk = true |
| 376 | case strings.HasPrefix(line, "diff --git "): |
| 377 | inHunk = false |
| 378 | case inHunk && strings.HasPrefix(line, "+"): |
| 379 | added++ |
| 380 | case inHunk && strings.HasPrefix(line, "-"): |
| 381 | removed++ |
| 382 | } |
| 383 | } |
| 384 | return added, removed |
| 385 | } |
| 386 | |
| 387 | // workspaceGit builds a console-hidden git probe against repo's pinned |
| 388 | // identity. gitcmd supplies the shared invocation baseline: CREATE_NO_WINDOW so |
| 389 | // git's own children inherit the invisible console, and the config overrides |
| 390 | // that keep a probe from spawning a background daemon (#3906). |
| 391 | func workspaceGit(repo gitcmd.Repo, args ...string) *exec.Cmd { |
| 392 | return workspaceGitCommand(context.Background(), repo, args...) |
| 393 | } |
| 394 | |
| 395 | func workspaceGitCommand(ctx context.Context, repo gitcmd.Repo, args ...string) *exec.Cmd { |
| 396 | return repo.Command(ctx, args...) |
| 397 | } |
| 398 | |
| 399 | func workspaceGitOutputWithTimeout(timeout time.Duration, repo gitcmd.Repo, args ...string) ([]byte, error) { |
| 400 | ctx, cancel := context.WithTimeout(context.Background(), timeout) |
| 401 | defer cancel() |
| 402 | return workspaceGitCommand(ctx, repo, args...).Output() |
| 403 | } |
| 404 | |
| 405 | func workspaceGitStatus(repo gitcmd.Repo) ([]gitStatusEntry, error) { |
| 406 | ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second) |
| 407 | defer cancel() |
| 408 | return workspaceGitStatusContext(ctx, repo) |
| 409 | } |
| 410 | |
| 411 | func workspaceGitStatusContext(ctx context.Context, repo gitcmd.Repo) ([]gitStatusEntry, error) { |
| 412 | base := repo.Dir |
| 413 | // Git's porcelain paths are repository-relative even when -C points at a |
| 414 | // subdirectory. Derive the textual repository prefix from Git itself instead |
| 415 | // of comparing absolute paths: Windows may spell the same directory once as |
| 416 | // an 8.3 path and once as a long path, which makes filepath.Rel reject every |
| 417 | // otherwise valid status entry. |
| 418 | prefixCmd := workspaceGitCommand(ctx, repo, "-C", base, "rev-parse", "--show-prefix") |
| 419 | prefixRaw, err := prefixCmd.Output() |
| 420 | if err != nil { |
| 421 | return nil, err |
| 422 | } |
| 423 | prefix := strings.TrimSpace(string(prefixRaw)) |
| 424 | cmd := workspaceGitCommand(ctx, repo, "-C", base, "status", "--porcelain=v1", "-z", "--untracked-files=all", "--", ".") |
| 425 | raw, err := cmd.Output() |
| 426 | if err != nil { |
| 427 | return nil, err |
| 428 | } |
| 429 | entries := parseGitStatusPorcelainZ(raw) |
| 430 | out := make([]gitStatusEntry, 0, len(entries)) |
| 431 | for _, entry := range entries { |
| 432 | entry.Path = workspaceRelPathFromGitPrefix(base, prefix, entry.Path) |
| 433 | if entry.Path == "" { |
| 434 | continue |
| 435 | } |
| 436 | entry.OldPath = workspaceRelPathFromGitPrefix(base, prefix, entry.OldPath) |
| 437 | out = append(out, entry) |
| 438 | } |
| 439 | return out, nil |
| 440 | } |
| 441 | |
| 442 | func parseGitStatusPorcelainZ(raw []byte) []gitStatusEntry { |
| 443 | parts := bytes.Split(raw, []byte{0}) |
| 444 | out := make([]gitStatusEntry, 0, len(parts)) |
| 445 | for i := 0; i < len(parts); i++ { |
| 446 | part := parts[i] |
| 447 | if len(part) < 4 { |
| 448 | continue |
| 449 | } |
| 450 | status := string(part[:2]) |
| 451 | path := string(part[3:]) |
| 452 | entry := gitStatusEntry{Path: path, Status: strings.TrimSpace(status)} |
| 453 | if strings.ContainsAny(status, "RC") && i+1 < len(parts) { |
| 454 | i++ |
| 455 | entry.OldPath = string(parts[i]) |
| 456 | } |
| 457 | out = append(out, entry) |
| 458 | } |
| 459 | return out |
| 460 | } |
| 461 | |
| 462 | func normalizeWorkspaceRelPath(base, path string) string { |
| 463 | path = strings.TrimSpace(path) |
| 464 | if path == "" { |
| 465 | return "" |
| 466 | } |
| 467 | if filepath.IsAbs(path) { |
| 468 | if rel, err := filepath.Rel(base, path); err == nil { |
| 469 | path = rel |
| 470 | } |
| 471 | } |
| 472 | path = filepath.Clean(path) |
| 473 | if path == "." || path == ".." || strings.HasPrefix(path, ".."+string(filepath.Separator)) { |
| 474 | return "" |
| 475 | } |
| 476 | return filepath.ToSlash(path) |
| 477 | } |
| 478 | |
| 479 | func workspaceRelPathFromGitPrefix(base, prefix, path string) string { |
| 480 | path = filepath.ToSlash(strings.TrimSpace(path)) |
| 481 | prefix = filepath.ToSlash(strings.TrimSpace(prefix)) |
| 482 | if path == "" { |
| 483 | return "" |
| 484 | } |
| 485 | if prefix != "" { |
| 486 | if !strings.HasPrefix(path, prefix) { |
| 487 | return "" |
| 488 | } |
| 489 | path = strings.TrimPrefix(path, prefix) |
| 490 | } |
| 491 | return normalizeWorkspaceRelPath(base, filepath.FromSlash(path)) |
| 492 | } |
| 493 | |
| 494 | // workspaceGitBranchForMeta is the cached variant used by high-frequency UI |
| 495 | // metadata refreshes. It never waits for git on the caller path: stale branch |
| 496 | // metadata is less harmful than blocking tab activation or hydration. Workflows |
| 497 | // that need an immediate git read, such as WorkspaceChanges, should call |
| 498 | // workspaceGitBranch directly. |
| 499 | func workspaceGitBranchForMeta(base string, repo gitcmd.Repo) string { |
| 500 | key := filepath.Clean(base) |
| 501 | now := time.Now() |
| 502 | |
| 503 | workspaceGitBranchCache.Lock() |
| 504 | if cached, ok := workspaceGitBranchCache.entries[key]; ok { |
| 505 | branch := cached.branch |
| 506 | if now.Before(cached.expires) || cached.refreshing { |
| 507 | workspaceGitBranchCache.Unlock() |
| 508 | return branch |
| 509 | } |
| 510 | cached.refreshing = true |
| 511 | cached.request = new(int) |
| 512 | workspaceGitBranchCache.entries[key] = cached |
| 513 | workspaceGitBranchCache.Unlock() |
| 514 | go refreshWorkspaceGitBranchForMeta(key, base, repo, cached.request) |
| 515 | return branch |
| 516 | } |
| 517 | |
| 518 | request := new(int) |
| 519 | workspaceGitBranchCache.entries[key] = workspaceGitBranchCacheEntry{ |
| 520 | expires: now.Add(workspaceGitBranchCacheTTL), |
| 521 | refreshing: true, |
| 522 | request: request, |
| 523 | } |
| 524 | workspaceGitBranchCache.Unlock() |
| 525 | |
| 526 | go refreshWorkspaceGitBranchForMeta(key, base, repo, request) |
| 527 | return "" |
| 528 | } |
| 529 | |
| 530 | // refreshWorkspaceGitBranchForMeta reads through repo, the tab session's |
| 531 | // identity; a tab with no session yet resolves base as opening it would. |
| 532 | func refreshWorkspaceGitBranchForMeta(key, base string, repo gitcmd.Repo, request *int) { |
| 533 | branch := "" |
| 534 | // Store via defer so the refreshing flag is always cleared, even when the |
| 535 | // probe panics or exits the goroutine early; otherwise the entry would stay |
| 536 | // marked refreshing forever and never update again. |
| 537 | defer func() { |
| 538 | storeNow := time.Now() |
| 539 | workspaceGitBranchCache.Lock() |
| 540 | defer workspaceGitBranchCache.Unlock() |
| 541 | if cached, ok := workspaceGitBranchCache.entries[key]; !ok || cached.request != request { |
| 542 | return |
| 543 | } |
| 544 | if len(workspaceGitBranchCache.entries) > 256 { |
| 545 | for k, cached := range workspaceGitBranchCache.entries { |
| 546 | if storeNow.After(cached.expires) { |
| 547 | delete(workspaceGitBranchCache.entries, k) |
| 548 | } |
| 549 | } |
| 550 | } |
| 551 | workspaceGitBranchCache.entries[key] = workspaceGitBranchCacheEntry{branch: branch, expires: storeNow.Add(workspaceGitBranchCacheTTL)} |
| 552 | }() |
| 553 | |
| 554 | if repo.Dir == "" { |
| 555 | repo = openWorkspaceRepo(base) |
| 556 | } |
| 557 | branch = workspaceGitBranchForMetaProbe(repo) |
| 558 | } |
| 559 | |
| 560 | // workspaceGitBranch returns the current git branch name of repo, or an empty |
| 561 | // string when it names no git repository or git is unavailable. |
| 562 | func workspaceGitBranch(repo gitcmd.Repo) string { |
| 563 | ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second) |
| 564 | defer cancel() |
| 565 | branch, _ := workspaceGitBranchContext(ctx, repo) |
| 566 | return branch |
| 567 | } |
| 568 | |
| 569 | func workspaceGitBranchContext(ctx context.Context, repo gitcmd.Repo) (string, error) { |
| 570 | base := repo.Dir |
| 571 | raw, err := workspaceGitCommand(ctx, repo, "-C", base, "branch", "--show-current").Output() |
| 572 | if err != nil { |
| 573 | return "", err |
| 574 | } |
| 575 | if branch := strings.TrimSpace(string(raw)); branch != "" { |
| 576 | return branch, nil |
| 577 | } |
| 578 | |
| 579 | raw, err = workspaceGitCommand(ctx, repo, "-C", base, "rev-parse", "--short", "HEAD").Output() |
| 580 | if err != nil { |
| 581 | return "", err |
| 582 | } |
| 583 | short := strings.TrimSpace(string(raw)) |
| 584 | if short == "" { |
| 585 | return "", nil |
| 586 | } |
| 587 | return "@" + short, nil |
| 588 | } |
| 589 | |
| 590 | // GitBranches returns all local git branches for the active workspace's repo. |
| 591 | func (a *App) GitBranches() ([]string, error) { |
| 592 | repo, err := a.workspaceRepoForTab("") |
| 593 | if err != nil { |
| 594 | return nil, err |
| 595 | } |
| 596 | return workspaceLocalBranches(repo) |
| 597 | } |
| 598 | |
| 599 | func (a *App) GitCheckout(branch string) error { |
| 600 | repo, err := a.workspaceRepoForTab("") |
| 601 | if err != nil { |
| 602 | return err |
| 603 | } |
| 604 | return workspaceCheckoutBranch(repo, branch, false) |
| 605 | } |
| 606 | |
| 607 | const gitRefInvalidChars = " ~^:?*[\\" + "\t\n" |
| 608 | |
| 609 | func validGitBranchName(name string) bool { |
| 610 | name = strings.TrimSpace(name) |
| 611 | if name == "" || strings.HasPrefix(name, "-") || strings.Contains(name, "..") || |
| 612 | strings.HasSuffix(name, "/") || strings.HasSuffix(name, ".") || strings.Contains(name, "@{") { |
| 613 | return false |
| 614 | } |
| 615 | return !strings.ContainsAny(name, gitRefInvalidChars) |
| 616 | } |
| 617 | |
| 618 | func (a *App) GitCreateBranch(name string) error { |
| 619 | repo, err := a.workspaceRepoForTab("") |
| 620 | if err != nil { |
| 621 | return err |
| 622 | } |
| 623 | return workspaceCheckoutBranch(repo, name, true) |
| 624 | } |
| 625 | |
| 626 | type GitCommitView struct { |
| 627 | Hash string `json:"hash"` |
| 628 | Author string `json:"author"` |
| 629 | Date string `json:"date"` |
| 630 | Message string `json:"message"` |
| 631 | } |
| 632 | |
| 633 | type GitCommitDetailView struct { |
| 634 | Diff *string `json:"diff,omitempty"` |
| 635 | Files []string `json:"files,omitempty"` |
| 636 | } |
| 637 | |
| 638 | func (a *App) WorkspaceGitHistory(tabID string, path string) ([]GitCommitView, error) { |
| 639 | repo, err := a.workspaceRepoForTab(tabID) |
| 640 | if err != nil { |
| 641 | return nil, err |
| 642 | } |
| 643 | base := repo.Dir |
| 644 | |
| 645 | args := []string{"-C", base, "log", "--pretty=format:%H%x00%an%x00%ad%x00%s", "-z", "-n", "100"} |
| 646 | if path != "" { |
| 647 | args = append(args, "--", path) |
| 648 | } |
| 649 | |
| 650 | cmd := workspaceGit(repo, args...) |
| 651 | raw, err := cmd.Output() |
| 652 | if err != nil { |
| 653 | return nil, err |
| 654 | } |
| 655 | |
| 656 | parts := bytes.Split(raw, []byte{0}) |
| 657 | out := []GitCommitView{} |
| 658 | // 4 parts per commit: hash, author, date, message |
| 659 | for i := 0; i+3 < len(parts); i += 4 { |
| 660 | out = append(out, GitCommitView{ |
| 661 | Hash: string(parts[i]), |
| 662 | Author: string(parts[i+1]), |
| 663 | Date: string(parts[i+2]), |
| 664 | Message: string(parts[i+3]), |
| 665 | }) |
| 666 | } |
| 667 | return out, nil |
| 668 | } |
| 669 | |
| 670 | func (a *App) WorkspaceGitCommitDetail(tabID string, hash string, path string) (GitCommitDetailView, error) { |
| 671 | repo, err := a.workspaceRepoForTab(tabID) |
| 672 | if err != nil { |
| 673 | return GitCommitDetailView{}, err |
| 674 | } |
| 675 | base := repo.Dir |
| 676 | |
| 677 | if path != "" { |
| 678 | // Single file diff |
| 679 | cmd := workspaceGit(repo, "-C", base, "show", "--relative", "--pretty=format:", "--patch", hash, "--", path) |
| 680 | raw, err := cmd.Output() |
| 681 | if err != nil { |
| 682 | return GitCommitDetailView{}, notLocalOr(repo, hash, err) |
| 683 | } |
| 684 | diffStr := strings.TrimSpace(string(raw)) |
| 685 | return GitCommitDetailView{Diff: &diffStr}, nil |
| 686 | } |
| 687 | |
| 688 | // Project level: list of files changed |
| 689 | cmd := workspaceGit(repo, "-C", base, "diff-tree", "--relative", "--no-commit-id", "--name-only", "-z", "-r", hash) |
| 690 | raw, err := cmd.Output() |
| 691 | if err != nil { |
| 692 | return GitCommitDetailView{}, notLocalOr(repo, hash, err) |
| 693 | } |
| 694 | |
| 695 | var files []string |
| 696 | for path := range bytes.SplitSeq(raw, []byte{0}) { |
| 697 | if len(path) > 0 { |
| 698 | files = append(files, string(path)) |
| 699 | } |
| 700 | } |
| 701 | return GitCommitDetailView{Files: files}, nil |
| 702 | } |
| 703 | |
| 704 | // notLocalOr names a failure caused by objects a partial clone never fetched — |
| 705 | // host git does not fetch them — and passes any other failure through. |
| 706 | func notLocalOr(repo gitcmd.Repo, hash string, err error) error { |
| 707 | ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second) |
| 708 | defer cancel() |
| 709 | if repo.ObjectsMissing(ctx, hash, hash+"^") { |
| 710 | return fmt.Errorf("commit %s: %w", hash, gitcmd.ErrObjectNotLocal) |
| 711 | } |
| 712 | return err |
| 713 | } |
| 714 |