| 1 | package workspacelease |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "os" |
| 7 | "os/exec" |
| 8 | "path/filepath" |
| 9 | "runtime" |
| 10 | "sync/atomic" |
| 11 | "testing" |
| 12 | "time" |
| 13 | ) |
| 14 | |
| 15 | func TestWorkspaceLeaseHelperProcess(t *testing.T) { |
| 16 | if os.Getenv("REASONIX_WORKSPACE_LEASE_HELPER") != "1" { |
| 17 | return |
| 18 | } |
| 19 | root := os.Getenv("REASONIX_WORKSPACE_LEASE_ROOT") |
| 20 | locks := os.Getenv("REASONIX_WORKSPACE_LEASE_DIR") |
| 21 | ready := os.Getenv("REASONIX_WORKSPACE_LEASE_READY") |
| 22 | o, err := New(root, locks, nil) |
| 23 | if err != nil { |
| 24 | t.Fatal(err) |
| 25 | } |
| 26 | o.BeginRun() |
| 27 | if err := o.AcquireWrite(context.Background()); err != nil { |
| 28 | t.Fatal(err) |
| 29 | } |
| 30 | if err := os.WriteFile(ready, []byte("ready"), 0o600); err != nil { |
| 31 | t.Fatal(err) |
| 32 | } |
| 33 | for { |
| 34 | time.Sleep(time.Hour) |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | func TestCanonicalWorkspaceResolvesSymlink(t *testing.T) { |
| 39 | if runtime.GOOS == "windows" { |
| 40 | t.Skip("symlink creation requires privileges on some Windows builders") |
| 41 | } |
| 42 | real := t.TempDir() |
| 43 | link := filepath.Join(t.TempDir(), "workspace-link") |
| 44 | if err := os.Symlink(real, link); err != nil { |
| 45 | t.Fatal(err) |
| 46 | } |
| 47 | got, err := CanonicalWorkspace(filepath.Join(link, ".")) |
| 48 | if err != nil { |
| 49 | t.Fatal(err) |
| 50 | } |
| 51 | want, err := CanonicalWorkspace(real) |
| 52 | if err != nil { |
| 53 | t.Fatal(err) |
| 54 | } |
| 55 | if got != want { |
| 56 | t.Fatalf("canonical identities differ: got %q want %q", got, want) |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | func TestCanonicalWorkspaceFoldsRepositorySubdirectoriesWithoutGitBinary(t *testing.T) { |
| 61 | repo := t.TempDir() |
| 62 | if err := os.Mkdir(filepath.Join(repo, ".git"), 0o755); err != nil { |
| 63 | t.Fatal(err) |
| 64 | } |
| 65 | subdir := filepath.Join(repo, "packages", "app") |
| 66 | if err := os.MkdirAll(subdir, 0o755); err != nil { |
| 67 | t.Fatal(err) |
| 68 | } |
| 69 | rootIdentity, err := CanonicalWorkspace(repo) |
| 70 | if err != nil { |
| 71 | t.Fatal(err) |
| 72 | } |
| 73 | subdirIdentity, err := CanonicalWorkspace(subdir) |
| 74 | if err != nil { |
| 75 | t.Fatal(err) |
| 76 | } |
| 77 | if subdirIdentity != rootIdentity { |
| 78 | t.Fatalf("repository subdirectory identity = %q, want root identity %q", subdirIdentity, rootIdentity) |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | func TestCanonicalWorkspaceKeepsLinkedWorktreesIndependent(t *testing.T) { |
| 83 | parent := t.TempDir() |
| 84 | first := filepath.Join(parent, "worktree-one") |
| 85 | second := filepath.Join(parent, "worktree-two") |
| 86 | for _, root := range []string{first, second} { |
| 87 | if err := os.MkdirAll(root, 0o755); err != nil { |
| 88 | t.Fatal(err) |
| 89 | } |
| 90 | if err := os.WriteFile(filepath.Join(root, ".git"), []byte("gitdir: ../common\n"), 0o600); err != nil { |
| 91 | t.Fatal(err) |
| 92 | } |
| 93 | } |
| 94 | firstIdentity, err := CanonicalWorkspace(first) |
| 95 | if err != nil { |
| 96 | t.Fatal(err) |
| 97 | } |
| 98 | secondIdentity, err := CanonicalWorkspace(second) |
| 99 | if err != nil { |
| 100 | t.Fatal(err) |
| 101 | } |
| 102 | if firstIdentity == secondIdentity { |
| 103 | t.Fatalf("linked worktrees shared identity %q", firstIdentity) |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | func TestWorkspaceIdentityHelpersPreserveCanonicalRoot(t *testing.T) { |
| 108 | owner, err := New(t.TempDir(), t.TempDir(), nil) |
| 109 | if err != nil { |
| 110 | t.Fatal(err) |
| 111 | } |
| 112 | ancestors := ancestorDirectories(owner.compatibility) |
| 113 | if len(ancestors) == 0 || ancestors[len(ancestors)-1] != owner.compatibility { |
| 114 | t.Fatalf("ancestor chain = %q, want compatibility root %q last", ancestors, owner.compatibility) |
| 115 | } |
| 116 | if got := workspaceLockPath(owner.lockDir, owner.compatibility); got != owner.lockPath { |
| 117 | t.Fatalf("compatibility root lock = %q, want owner lock %q", got, owner.lockPath) |
| 118 | } |
| 119 | chain := pathChain(owner.canonical, filepath.Join(owner.canonical, "nested", "file.go")) |
| 120 | if len(chain) == 0 || chain[0] != owner.canonical { |
| 121 | t.Fatalf("path chain = %q, want canonical root %q first", chain, owner.canonical) |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | func TestRepositoryRootAndSubdirectoryOwnersSerialize(t *testing.T) { |
| 126 | repo, locks := t.TempDir(), t.TempDir() |
| 127 | if err := os.Mkdir(filepath.Join(repo, ".git"), 0o755); err != nil { |
| 128 | t.Fatal(err) |
| 129 | } |
| 130 | subdir := filepath.Join(repo, "nested", "project") |
| 131 | if err := os.MkdirAll(subdir, 0o755); err != nil { |
| 132 | t.Fatal(err) |
| 133 | } |
| 134 | rootOwner, err := New(repo, locks, nil) |
| 135 | if err != nil { |
| 136 | t.Fatal(err) |
| 137 | } |
| 138 | subdirOwner, err := New(subdir, locks, nil) |
| 139 | if err != nil { |
| 140 | t.Fatal(err) |
| 141 | } |
| 142 | rootOwner.BeginRun() |
| 143 | subdirOwner.BeginRun() |
| 144 | if err := rootOwner.AcquireWrite(context.Background()); err != nil { |
| 145 | t.Fatal(err) |
| 146 | } |
| 147 | ctx, cancel := context.WithTimeout(context.Background(), 60*time.Millisecond) |
| 148 | if err := subdirOwner.AcquireWrite(ctx); !errors.Is(err, context.DeadlineExceeded) { |
| 149 | cancel() |
| 150 | t.Fatalf("repository subdirectory owner acquired independently: %v", err) |
| 151 | } |
| 152 | cancel() |
| 153 | rootOwner.EndRun() |
| 154 | if err := subdirOwner.AcquireWrite(context.Background()); err != nil { |
| 155 | t.Fatal(err) |
| 156 | } |
| 157 | subdirOwner.EndRun() |
| 158 | } |
| 159 | |
| 160 | func TestOwnersSerializeSameWorkspaceAndNotifyOnce(t *testing.T) { |
| 161 | root, locks := t.TempDir(), t.TempDir() |
| 162 | first, err := New(root, locks, nil) |
| 163 | if err != nil { |
| 164 | t.Fatal(err) |
| 165 | } |
| 166 | var notices atomic.Int32 |
| 167 | waiting := make(chan struct{}, 1) |
| 168 | second, err := New(root, locks, func() { |
| 169 | notices.Add(1) |
| 170 | select { |
| 171 | case waiting <- struct{}{}: |
| 172 | default: |
| 173 | } |
| 174 | }) |
| 175 | if err != nil { |
| 176 | t.Fatal(err) |
| 177 | } |
| 178 | first.BeginRun() |
| 179 | second.BeginRun() |
| 180 | t.Cleanup(first.EndRun) |
| 181 | t.Cleanup(second.EndRun) |
| 182 | if err := first.AcquireWrite(context.Background()); err != nil { |
| 183 | t.Fatal(err) |
| 184 | } |
| 185 | |
| 186 | acquired := make(chan error, 1) |
| 187 | go func() { acquired <- second.AcquireWrite(context.Background()) }() |
| 188 | select { |
| 189 | case err := <-acquired: |
| 190 | t.Fatalf("second owner acquired early: %v", err) |
| 191 | case <-waiting: |
| 192 | case <-time.After(2 * time.Second): |
| 193 | t.Fatal("second owner did not report waiting") |
| 194 | } |
| 195 | first.EndRun() |
| 196 | select { |
| 197 | case err := <-acquired: |
| 198 | if err != nil { |
| 199 | t.Fatal(err) |
| 200 | } |
| 201 | case <-time.After(2 * time.Second): |
| 202 | t.Fatal("second owner did not acquire after release") |
| 203 | } |
| 204 | if got := notices.Load(); got != 1 { |
| 205 | t.Fatalf("wait notices = %d, want 1", got) |
| 206 | } |
| 207 | second.EndRun() |
| 208 | } |
| 209 | |
| 210 | func TestStateReportsWaitingAndAcquiredWithoutIdentity(t *testing.T) { |
| 211 | root, locks := t.TempDir(), t.TempDir() |
| 212 | first, err := New(root, locks, nil) |
| 213 | if err != nil { |
| 214 | t.Fatal(err) |
| 215 | } |
| 216 | waiting := make(chan struct{}, 1) |
| 217 | second, err := New(root, locks, func() { waiting <- struct{}{} }) |
| 218 | if err != nil { |
| 219 | t.Fatal(err) |
| 220 | } |
| 221 | first.BeginRun() |
| 222 | second.BeginRun() |
| 223 | if err := first.AcquireWrite(context.Background()); err != nil { |
| 224 | t.Fatal(err) |
| 225 | } |
| 226 | if got := first.State(); !got.Acquired || got.Waiting { |
| 227 | t.Fatalf("first owner state = %+v, want acquired and not waiting", got) |
| 228 | } |
| 229 | acquired := make(chan error, 1) |
| 230 | go func() { acquired <- second.AcquireWrite(context.Background()) }() |
| 231 | select { |
| 232 | case <-waiting: |
| 233 | case <-time.After(2 * time.Second): |
| 234 | t.Fatal("second owner did not report waiting") |
| 235 | } |
| 236 | if got := second.State(); got.Acquired || !got.Waiting { |
| 237 | t.Fatalf("second owner state = %+v, want waiting and not acquired", got) |
| 238 | } |
| 239 | first.EndRun() |
| 240 | if err := <-acquired; err != nil { |
| 241 | t.Fatal(err) |
| 242 | } |
| 243 | if got := second.State(); !got.Acquired || got.Waiting { |
| 244 | t.Fatalf("second owner state after acquire = %+v, want acquired and not waiting", got) |
| 245 | } |
| 246 | second.EndRun() |
| 247 | } |
| 248 | |
| 249 | func TestIndependentWorkspacesDoNotBlockEachOther(t *testing.T) { |
| 250 | locks := t.TempDir() |
| 251 | first, err := New(t.TempDir(), locks, nil) |
| 252 | if err != nil { |
| 253 | t.Fatal(err) |
| 254 | } |
| 255 | secondRoot, _ := unrelatedTreePath(t, first, t.TempDir()) |
| 256 | second, err := New(secondRoot, locks, nil) |
| 257 | if err != nil { |
| 258 | t.Fatal(err) |
| 259 | } |
| 260 | first.BeginRun() |
| 261 | second.BeginRun() |
| 262 | t.Cleanup(first.EndRun) |
| 263 | t.Cleanup(second.EndRun) |
| 264 | if err := first.AcquireWrite(context.Background()); err != nil { |
| 265 | t.Fatal(err) |
| 266 | } |
| 267 | ctx, cancel := context.WithTimeout(context.Background(), 250*time.Millisecond) |
| 268 | defer cancel() |
| 269 | if err := second.AcquireWrite(ctx); err != nil { |
| 270 | t.Fatalf("independent workspace was blocked: %v", err) |
| 271 | } |
| 272 | first.EndRun() |
| 273 | second.EndRun() |
| 274 | } |
| 275 | |
| 276 | func TestLeaseMetadataNeverDirtiesWorkspace(t *testing.T) { |
| 277 | root, locks := t.TempDir(), t.TempDir() |
| 278 | before, err := os.ReadDir(root) |
| 279 | if err != nil { |
| 280 | t.Fatal(err) |
| 281 | } |
| 282 | o, err := New(root, locks, nil) |
| 283 | if err != nil { |
| 284 | t.Fatal(err) |
| 285 | } |
| 286 | o.BeginRun() |
| 287 | if err := o.AcquireWrite(context.Background()); err != nil { |
| 288 | t.Fatal(err) |
| 289 | } |
| 290 | o.EndRun() |
| 291 | after, err := os.ReadDir(root) |
| 292 | if err != nil { |
| 293 | t.Fatal(err) |
| 294 | } |
| 295 | if len(after) != len(before) { |
| 296 | t.Fatalf("workspace entries changed after lease: before=%d after=%d", len(before), len(after)) |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | func TestAcquireIsReentrantWithinOwner(t *testing.T) { |
| 301 | o, err := New(t.TempDir(), t.TempDir(), nil) |
| 302 | if err != nil { |
| 303 | t.Fatal(err) |
| 304 | } |
| 305 | o.BeginRun() |
| 306 | if err := o.AcquireWrite(context.Background()); err != nil { |
| 307 | t.Fatal(err) |
| 308 | } |
| 309 | ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond) |
| 310 | defer cancel() |
| 311 | if err := o.AcquireWrite(ctx); err != nil { |
| 312 | t.Fatalf("re-entrant acquire failed: %v", err) |
| 313 | } |
| 314 | o.EndRun() |
| 315 | } |
| 316 | |
| 317 | func TestCancelledWaitDoesNotLeakLocalLease(t *testing.T) { |
| 318 | root, locks := t.TempDir(), t.TempDir() |
| 319 | first, _ := New(root, locks, nil) |
| 320 | second, _ := New(root, locks, nil) |
| 321 | third, _ := New(root, locks, nil) |
| 322 | first.BeginRun() |
| 323 | second.BeginRun() |
| 324 | third.BeginRun() |
| 325 | if err := first.AcquireWrite(context.Background()); err != nil { |
| 326 | t.Fatal(err) |
| 327 | } |
| 328 | ctx, cancel := context.WithTimeout(context.Background(), 60*time.Millisecond) |
| 329 | defer cancel() |
| 330 | if err := second.AcquireWrite(ctx); !errors.Is(err, context.DeadlineExceeded) { |
| 331 | t.Fatalf("cancelled acquire = %v, want deadline", err) |
| 332 | } |
| 333 | second.EndRun() |
| 334 | first.EndRun() |
| 335 | if err := third.AcquireWrite(context.Background()); err != nil { |
| 336 | t.Fatalf("lease leaked after cancellation: %v", err) |
| 337 | } |
| 338 | third.EndRun() |
| 339 | } |
| 340 | |
| 341 | func TestLeaseWaitsForLastRun(t *testing.T) { |
| 342 | root, locks := t.TempDir(), t.TempDir() |
| 343 | first, _ := New(root, locks, nil) |
| 344 | second, _ := New(root, locks, nil) |
| 345 | first.BeginRun() |
| 346 | first.BeginRun() |
| 347 | second.BeginRun() |
| 348 | if err := first.AcquireWrite(context.Background()); err != nil { |
| 349 | t.Fatal(err) |
| 350 | } |
| 351 | first.EndRun() |
| 352 | ctx, cancel := context.WithTimeout(context.Background(), 50*time.Millisecond) |
| 353 | defer cancel() |
| 354 | if err := second.AcquireWrite(ctx); !errors.Is(err, context.DeadlineExceeded) { |
| 355 | t.Fatalf("second acquired before final run ended: %v", err) |
| 356 | } |
| 357 | first.EndRun() |
| 358 | if err := second.AcquireWrite(context.Background()); err != nil { |
| 359 | t.Fatal(err) |
| 360 | } |
| 361 | second.EndRun() |
| 362 | } |
| 363 | |
| 364 | func TestBackgroundRetentionOutlivesRun(t *testing.T) { |
| 365 | root, locks := t.TempDir(), t.TempDir() |
| 366 | first, _ := New(root, locks, nil) |
| 367 | second, _ := New(root, locks, nil) |
| 368 | first.BeginRun() |
| 369 | second.BeginRun() |
| 370 | if err := first.AcquireWrite(context.Background()); err != nil { |
| 371 | t.Fatal(err) |
| 372 | } |
| 373 | done := make(chan struct{}) |
| 374 | first.RetainUntil(done) |
| 375 | first.EndRun() |
| 376 | ctx, cancel := context.WithTimeout(context.Background(), 50*time.Millisecond) |
| 377 | if err := second.AcquireWrite(ctx); !errors.Is(err, context.DeadlineExceeded) { |
| 378 | cancel() |
| 379 | t.Fatalf("second acquired while background job was running: %v", err) |
| 380 | } |
| 381 | cancel() |
| 382 | close(done) |
| 383 | ctx, cancel = context.WithTimeout(context.Background(), 2*time.Second) |
| 384 | defer cancel() |
| 385 | if err := second.AcquireWrite(ctx); err != nil { |
| 386 | t.Fatal(err) |
| 387 | } |
| 388 | second.EndRun() |
| 389 | } |
| 390 | |
| 391 | func TestLeaseWaitsForEveryRetainedBackgroundJob(t *testing.T) { |
| 392 | root, locks := t.TempDir(), t.TempDir() |
| 393 | first, _ := New(root, locks, nil) |
| 394 | second, _ := New(root, locks, nil) |
| 395 | first.BeginRun() |
| 396 | second.BeginRun() |
| 397 | if err := first.AcquireWrite(context.Background()); err != nil { |
| 398 | t.Fatal(err) |
| 399 | } |
| 400 | one, two := make(chan struct{}), make(chan struct{}) |
| 401 | first.RetainUntil(one) |
| 402 | first.RetainUntil(two) |
| 403 | first.EndRun() |
| 404 | close(one) |
| 405 | ctx, cancel := context.WithTimeout(context.Background(), 60*time.Millisecond) |
| 406 | if err := second.AcquireWrite(ctx); !errors.Is(err, context.DeadlineExceeded) { |
| 407 | cancel() |
| 408 | t.Fatalf("lease released before final background job: %v", err) |
| 409 | } |
| 410 | cancel() |
| 411 | close(two) |
| 412 | ctx, cancel = context.WithTimeout(context.Background(), 2*time.Second) |
| 413 | defer cancel() |
| 414 | if err := second.AcquireWrite(ctx); err != nil { |
| 415 | t.Fatal(err) |
| 416 | } |
| 417 | second.EndRun() |
| 418 | } |
| 419 | |
| 420 | func TestNestedRepoPathWritesRunInParallel(t *testing.T) { |
| 421 | parent, locks := t.TempDir(), t.TempDir() |
| 422 | repoA := filepath.Join(parent, "A") |
| 423 | repoB := filepath.Join(parent, "B") |
| 424 | for _, repo := range []string{repoA, repoB} { |
| 425 | if err := os.MkdirAll(filepath.Join(repo, ".git"), 0o755); err != nil { |
| 426 | t.Fatal(err) |
| 427 | } |
| 428 | } |
| 429 | first, err := New(parent, locks, nil) |
| 430 | if err != nil { |
| 431 | t.Fatal(err) |
| 432 | } |
| 433 | second, err := New(parent, locks, nil) |
| 434 | if err != nil { |
| 435 | t.Fatal(err) |
| 436 | } |
| 437 | first.BeginRun() |
| 438 | second.BeginRun() |
| 439 | t.Cleanup(first.EndRun) |
| 440 | t.Cleanup(second.EndRun) |
| 441 | firstPath := filepath.Join(repoA, "a.go") |
| 442 | secondPath := distinctPathSlotInDirectory(t, second, repoB, canonicalPathSlot(t, first, firstPath)) |
| 443 | ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second) |
| 444 | defer cancel() |
| 445 | if err := first.AcquireWriteForPath(ctx, firstPath); err != nil { |
| 446 | t.Fatal(err) |
| 447 | } |
| 448 | if err := second.AcquireWriteForPath(ctx, secondPath); err != nil { |
| 449 | t.Fatal(err) |
| 450 | } |
| 451 | first.EndRun() |
| 452 | second.EndRun() |
| 453 | } |
| 454 | |
| 455 | func TestExclusiveWorkspaceWriteBlocksNestedRepoPath(t *testing.T) { |
| 456 | parent, locks := t.TempDir(), t.TempDir() |
| 457 | repoB := filepath.Join(parent, "B") |
| 458 | if err := os.MkdirAll(filepath.Join(repoB, ".git"), 0o755); err != nil { |
| 459 | t.Fatal(err) |
| 460 | } |
| 461 | first, err := New(parent, locks, nil) |
| 462 | if err != nil { |
| 463 | t.Fatal(err) |
| 464 | } |
| 465 | second, err := New(parent, locks, nil) |
| 466 | if err != nil { |
| 467 | t.Fatal(err) |
| 468 | } |
| 469 | first.BeginRun() |
| 470 | second.BeginRun() |
| 471 | if err := first.AcquireWrite(context.Background()); err != nil { |
| 472 | t.Fatal(err) |
| 473 | } |
| 474 | ctx, cancel := context.WithTimeout(context.Background(), 80*time.Millisecond) |
| 475 | if err := second.AcquireWriteForPath(ctx, filepath.Join(repoB, "b.go")); !errors.Is(err, context.DeadlineExceeded) { |
| 476 | cancel() |
| 477 | t.Fatalf("nested path write acquired under exclusive workspace: %v", err) |
| 478 | } |
| 479 | cancel() |
| 480 | first.EndRun() |
| 481 | if err := second.AcquireWriteForPath(context.Background(), filepath.Join(repoB, "b.go")); err != nil { |
| 482 | t.Fatal(err) |
| 483 | } |
| 484 | second.EndRun() |
| 485 | } |
| 486 | |
| 487 | func TestSameRepoDifferentFilesRunInParallel(t *testing.T) { |
| 488 | repo, locks := t.TempDir(), t.TempDir() |
| 489 | if err := os.Mkdir(filepath.Join(repo, ".git"), 0o755); err != nil { |
| 490 | t.Fatal(err) |
| 491 | } |
| 492 | first, err := New(repo, locks, nil) |
| 493 | if err != nil { |
| 494 | t.Fatal(err) |
| 495 | } |
| 496 | second, err := New(repo, locks, nil) |
| 497 | if err != nil { |
| 498 | t.Fatal(err) |
| 499 | } |
| 500 | first.BeginRun() |
| 501 | second.BeginRun() |
| 502 | t.Cleanup(first.EndRun) |
| 503 | t.Cleanup(second.EndRun) |
| 504 | firstPath, secondPath := increasingPathSlots(t, first) |
| 505 | ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second) |
| 506 | defer cancel() |
| 507 | if err := first.AcquireWriteForPath(ctx, firstPath); err != nil { |
| 508 | t.Fatal(err) |
| 509 | } |
| 510 | if err := second.AcquireWriteForPath(ctx, secondPath); err != nil { |
| 511 | t.Fatal(err) |
| 512 | } |
| 513 | } |
| 514 | |
| 515 | func TestSameFilePathWritesStillSerialize(t *testing.T) { |
| 516 | repo, locks := t.TempDir(), t.TempDir() |
| 517 | if err := os.Mkdir(filepath.Join(repo, ".git"), 0o755); err != nil { |
| 518 | t.Fatal(err) |
| 519 | } |
| 520 | first, err := New(repo, locks, nil) |
| 521 | if err != nil { |
| 522 | t.Fatal(err) |
| 523 | } |
| 524 | second, err := New(repo, locks, nil) |
| 525 | if err != nil { |
| 526 | t.Fatal(err) |
| 527 | } |
| 528 | first.BeginRun() |
| 529 | second.BeginRun() |
| 530 | path := filepath.Join(repo, "a.go") |
| 531 | if err := first.AcquireWriteForPath(context.Background(), path); err != nil { |
| 532 | t.Fatal(err) |
| 533 | } |
| 534 | ctx, cancel := context.WithTimeout(context.Background(), 80*time.Millisecond) |
| 535 | if err := second.AcquireWriteForPath(ctx, path); !errors.Is(err, context.DeadlineExceeded) { |
| 536 | cancel() |
| 537 | t.Fatalf("same file must still serialize: %v", err) |
| 538 | } |
| 539 | cancel() |
| 540 | first.EndRun() |
| 541 | if err := second.AcquireWriteForPath(context.Background(), path); err != nil { |
| 542 | t.Fatal(err) |
| 543 | } |
| 544 | second.EndRun() |
| 545 | } |
| 546 | |
| 547 | func TestHoldWriteReleasesBeforeEndRun(t *testing.T) { |
| 548 | root, locks := t.TempDir(), t.TempDir() |
| 549 | first, err := New(root, locks, nil) |
| 550 | if err != nil { |
| 551 | t.Fatal(err) |
| 552 | } |
| 553 | second, err := New(root, locks, nil) |
| 554 | if err != nil { |
| 555 | t.Fatal(err) |
| 556 | } |
| 557 | first.BeginRun() |
| 558 | second.BeginRun() |
| 559 | release, err := first.HoldWrite(context.Background()) |
| 560 | if err != nil { |
| 561 | t.Fatal(err) |
| 562 | } |
| 563 | ctx, cancel := context.WithTimeout(context.Background(), 80*time.Millisecond) |
| 564 | if err := second.AcquireWrite(ctx); !errors.Is(err, context.DeadlineExceeded) { |
| 565 | cancel() |
| 566 | t.Fatalf("held write should block: %v", err) |
| 567 | } |
| 568 | cancel() |
| 569 | release() |
| 570 | if err := second.AcquireWrite(context.Background()); err != nil { |
| 571 | t.Fatal(err) |
| 572 | } |
| 573 | first.EndRun() |
| 574 | second.EndRun() |
| 575 | } |
| 576 | |
| 577 | func TestPathWriteUpgradeToExclusiveBlocksOtherRepo(t *testing.T) { |
| 578 | parent, locks := t.TempDir(), t.TempDir() |
| 579 | repoA := filepath.Join(parent, "A") |
| 580 | repoB := filepath.Join(parent, "B") |
| 581 | for _, repo := range []string{repoA, repoB} { |
| 582 | if err := os.MkdirAll(filepath.Join(repo, ".git"), 0o755); err != nil { |
| 583 | t.Fatal(err) |
| 584 | } |
| 585 | } |
| 586 | first, err := New(parent, locks, nil) |
| 587 | if err != nil { |
| 588 | t.Fatal(err) |
| 589 | } |
| 590 | second, err := New(parent, locks, nil) |
| 591 | if err != nil { |
| 592 | t.Fatal(err) |
| 593 | } |
| 594 | first.BeginRun() |
| 595 | second.BeginRun() |
| 596 | releasePath, err := first.HoldWriteForPath(context.Background(), filepath.Join(repoA, "a.go")) |
| 597 | if err != nil { |
| 598 | t.Fatal(err) |
| 599 | } |
| 600 | upgraded := make(chan error, 1) |
| 601 | go func() { |
| 602 | release, upgradeErr := first.HoldWrite(context.Background()) |
| 603 | if upgradeErr == nil { |
| 604 | release() |
| 605 | } |
| 606 | upgraded <- upgradeErr |
| 607 | }() |
| 608 | waitForOwnerAcquisition(t, first) |
| 609 | releasePath() |
| 610 | if err := <-upgraded; err != nil { |
| 611 | t.Fatal(err) |
| 612 | } |
| 613 | release, err := first.HoldWrite(context.Background()) |
| 614 | if err != nil { |
| 615 | t.Fatal(err) |
| 616 | } |
| 617 | ctx, cancel := context.WithTimeout(context.Background(), 80*time.Millisecond) |
| 618 | if err := second.AcquireWriteForPath(ctx, filepath.Join(repoB, "b.go")); !errors.Is(err, context.DeadlineExceeded) { |
| 619 | cancel() |
| 620 | t.Fatalf("upgrade to exclusive should block other repo: %v", err) |
| 621 | } |
| 622 | cancel() |
| 623 | release() |
| 624 | first.EndRun() |
| 625 | if err := second.AcquireWriteForPath(context.Background(), filepath.Join(repoB, "b.go")); err != nil { |
| 626 | t.Fatal(err) |
| 627 | } |
| 628 | second.EndRun() |
| 629 | } |
| 630 | |
| 631 | func TestRetainWithoutWriteDoesNotBlockReaders(t *testing.T) { |
| 632 | root, locks := t.TempDir(), t.TempDir() |
| 633 | reader, _ := New(root, locks, nil) |
| 634 | writer, _ := New(root, locks, nil) |
| 635 | reader.BeginRun() |
| 636 | done := make(chan struct{}) |
| 637 | reader.RetainUntil(done) |
| 638 | reader.EndRun() |
| 639 | writer.BeginRun() |
| 640 | if err := writer.AcquireWrite(context.Background()); err != nil { |
| 641 | t.Fatal(err) |
| 642 | } |
| 643 | writer.EndRun() |
| 644 | close(done) |
| 645 | } |
| 646 | |
| 647 | func TestCrossProcessLeaseBlocksAndCrashReleases(t *testing.T) { |
| 648 | root, locks := t.TempDir(), t.TempDir() |
| 649 | ready := filepath.Join(t.TempDir(), "ready") |
| 650 | cmd := exec.Command(os.Args[0], "-test.run=^TestWorkspaceLeaseHelperProcess$") |
| 651 | cmd.Env = append(os.Environ(), |
| 652 | "REASONIX_WORKSPACE_LEASE_HELPER=1", |
| 653 | "REASONIX_WORKSPACE_LEASE_ROOT="+root, |
| 654 | "REASONIX_WORKSPACE_LEASE_DIR="+locks, |
| 655 | "REASONIX_WORKSPACE_LEASE_READY="+ready, |
| 656 | ) |
| 657 | if err := cmd.Start(); err != nil { |
| 658 | t.Fatal(err) |
| 659 | } |
| 660 | t.Cleanup(func() { |
| 661 | _ = cmd.Process.Kill() |
| 662 | _, _ = cmd.Process.Wait() |
| 663 | }) |
| 664 | deadline := time.Now().Add(5 * time.Second) |
| 665 | for { |
| 666 | if _, err := os.Stat(ready); err == nil { |
| 667 | break |
| 668 | } |
| 669 | if time.Now().After(deadline) { |
| 670 | t.Fatal("helper process did not acquire lease") |
| 671 | } |
| 672 | time.Sleep(20 * time.Millisecond) |
| 673 | } |
| 674 | |
| 675 | o, err := New(root, locks, nil) |
| 676 | if err != nil { |
| 677 | t.Fatal(err) |
| 678 | } |
| 679 | o.BeginRun() |
| 680 | ctx, cancel := context.WithTimeout(context.Background(), 120*time.Millisecond) |
| 681 | if err := o.AcquireWrite(ctx); !errors.Is(err, context.DeadlineExceeded) { |
| 682 | cancel() |
| 683 | t.Fatalf("cross-process acquire while helper lived = %v, want deadline", err) |
| 684 | } |
| 685 | cancel() |
| 686 | |
| 687 | if err := cmd.Process.Kill(); err != nil { |
| 688 | t.Fatal(err) |
| 689 | } |
| 690 | _, _ = cmd.Process.Wait() |
| 691 | ctx, cancel = context.WithTimeout(context.Background(), 3*time.Second) |
| 692 | defer cancel() |
| 693 | if err := o.AcquireWrite(ctx); err != nil { |
| 694 | t.Fatalf("OS lease did not release after helper crash: %v", err) |
| 695 | } |
| 696 | o.EndRun() |
| 697 | } |
| 698 |