| 406 | } |
| 407 | |
| 408 | int finalize_object_file_flags(struct repository *repo, |
| 409 | const char *tmpfile, const char *filename, |
| 410 | enum finalize_object_file_flags flags) |
| 411 | { |
| 412 | unsigned retries = 0; |
| 413 | int ret; |
| 414 | |
| 415 | retry: |
| 416 | ret = 0; |
| 417 | |
| 418 | if (object_creation_mode == OBJECT_CREATION_USES_RENAMES) |
| 419 | goto try_rename; |
| 420 | else if (link(tmpfile, filename)) |
| 421 | ret = errno; |
| 422 | else |
| 423 | unlink_or_warn(tmpfile); |
| 424 | |
| 425 | /* |
| 426 | * Coda hack - coda doesn't like cross-directory links, |
| 427 | * so we fall back to a rename, which will mean that it |
| 428 | * won't be able to check collisions, but that's not a |
| 429 | * big deal. |
| 430 | * |
| 431 | * The same holds for FAT formatted media. |
| 432 | * |
| 433 | * When this succeeds, we just return. We have nothing |
| 434 | * left to unlink. |
| 435 | */ |
| 436 | if (ret && ret != EEXIST) { |
| 437 | struct stat st; |
| 438 | |
| 439 | try_rename: |
| 440 | if (!stat(filename, &st)) |
| 441 | ret = EEXIST; |
| 442 | else if (!rename(tmpfile, filename)) |
| 443 | goto out; |
| 444 | else |
| 445 | ret = errno; |
| 446 | } |
| 447 | if (ret) { |
| 448 | if (ret != EEXIST) { |
| 449 | int saved_errno = errno; |
| 450 | unlink_or_warn(tmpfile); |
| 451 | errno = saved_errno; |
| 452 | return error_errno(_("unable to write file %s"), filename); |
| 453 | } |
| 454 | if (!(flags & FOF_SKIP_COLLISION_CHECK)) { |
| 455 | ret = check_collision(tmpfile, filename); |
| 456 | if (ret == CHECK_COLLISION_DEST_VANISHED) { |
| 457 | if (retries++ > 5) |
| 458 | return error(_("unable to write repeatedly vanishing file %s"), |
| 459 | filename); |
| 460 | goto retry; |
| 461 | } |
| 462 | else if (ret) |
| 463 | return -1; |
| 464 | } |
| 465 | unlink_or_warn(tmpfile); |
no test coverage detected