diff options
| -rw-r--r-- | builtin-commit.c | 3 | ||||
| -rw-r--r-- | builtin-fetch-pack.c | 3 | ||||
| -rw-r--r-- | builtin-revert.c | 3 | ||||
| -rw-r--r-- | bundle.c | 3 | ||||
| -rw-r--r-- | cache.h | 2 | ||||
| -rw-r--r-- | lockfile.c | 29 | ||||
| -rw-r--r-- | pack-refs.c | 3 | ||||
| -rw-r--r-- | refs.c | 9 | ||||
| -rw-r--r-- | rerere.c | 3 | ||||
| -rw-r--r-- | sha1_file.c | 2 | ||||
| -rwxr-xr-x | t/t7201-co.sh | 2 |
11 files changed, 39 insertions, 23 deletions
diff --git a/builtin-commit.c b/builtin-commit.c index e2a7e48b1c..b563a0d67c 100644 --- a/builtin-commit.c +++ b/builtin-commit.c @@ -320,7 +320,8 @@ static char *prepare_index(int argc, const char **argv, const char *prefix) die("unable to write new_index file"); fd = hold_lock_file_for_update(&false_lock, - git_path("next-index-%d", getpid()), 1); + git_path("next-index-%d", getpid()), + LOCK_DIE_ON_ERROR); create_base_index(); add_remove_files(&partial); diff --git a/builtin-fetch-pack.c b/builtin-fetch-pack.c index 85509f5ee5..21ce3e0163 100644 --- a/builtin-fetch-pack.c +++ b/builtin-fetch-pack.c @@ -813,7 +813,8 @@ struct ref *fetch_pack(struct fetch_pack_args *my_args, ) die("shallow file was changed during fetch"); - fd = hold_lock_file_for_update(&lock, shallow, 1); + fd = hold_lock_file_for_update(&lock, shallow, + LOCK_DIE_ON_ERROR); if (!write_shallow_commits(fd, 0)) { unlink(shallow); rollback_lock_file(&lock); diff --git a/builtin-revert.c b/builtin-revert.c index 27881e9493..e839387629 100644 --- a/builtin-revert.c +++ b/builtin-revert.c @@ -338,7 +338,8 @@ static int revert_or_cherry_pick(int argc, const char **argv) * reverse of it if we are revert. */ - msg_fd = hold_lock_file_for_update(&msg_file, defmsg, 1); + msg_fd = hold_lock_file_for_update(&msg_file, defmsg, + LOCK_DIE_ON_ERROR); encoding = get_encoding(message); if (!encoding) @@ -186,7 +186,8 @@ int create_bundle(struct bundle_header *header, const char *path, if (bundle_to_stdout) bundle_fd = 1; else - bundle_fd = hold_lock_file_for_update(&lock, path, 1); + bundle_fd = hold_lock_file_for_update(&lock, path, + LOCK_DIE_ON_ERROR); /* write signature */ write_or_die(bundle_fd, bundle_signature, strlen(bundle_signature)); @@ -411,6 +411,8 @@ struct lock_file { char on_list; char filename[PATH_MAX]; }; +#define LOCK_DIE_ON_ERROR 1 +#define LOCK_NODEREF 2 extern int hold_lock_file_for_update(struct lock_file *, const char *path, int); extern int hold_lock_file_for_append(struct lock_file *, const char *path, int); extern int commit_lock_file(struct lock_file *); diff --git a/lockfile.c b/lockfile.c index 4023797b00..6d75608693 100644 --- a/lockfile.c +++ b/lockfile.c @@ -121,15 +121,17 @@ static char *resolve_symlink(char *p, size_t s) } -static int lock_file(struct lock_file *lk, const char *path) +static int lock_file(struct lock_file *lk, const char *path, int flags) { - if (strlen(path) >= sizeof(lk->filename)) return -1; + if (strlen(path) >= sizeof(lk->filename)) + return -1; strcpy(lk->filename, path); /* * subtract 5 from size to make sure there's room for adding * ".lock" for the lock file name */ - resolve_symlink(lk->filename, sizeof(lk->filename)-5); + if (!(flags & LOCK_NODEREF)) + resolve_symlink(lk->filename, sizeof(lk->filename)-5); strcat(lk->filename, ".lock"); lk->fd = open(lk->filename, O_RDWR | O_CREAT | O_EXCL, 0666); if (0 <= lk->fd) { @@ -155,21 +157,21 @@ static int lock_file(struct lock_file *lk, const char *path) return lk->fd; } -int hold_lock_file_for_update(struct lock_file *lk, const char *path, int die_on_error) +int hold_lock_file_for_update(struct lock_file *lk, const char *path, int flags) { - int fd = lock_file(lk, path); - if (fd < 0 && die_on_error) + int fd = lock_file(lk, path, flags); + if (fd < 0 && (flags & LOCK_DIE_ON_ERROR)) die("unable to create '%s.lock': %s", path, strerror(errno)); return fd; } -int hold_lock_file_for_append(struct lock_file *lk, const char *path, int die_on_error) +int hold_lock_file_for_append(struct lock_file *lk, const char *path, int flags) { int fd, orig_fd; - fd = lock_file(lk, path); + fd = lock_file(lk, path, flags); if (fd < 0) { - if (die_on_error) + if (flags & LOCK_DIE_ON_ERROR) die("unable to create '%s.lock': %s", path, strerror(errno)); return fd; } @@ -177,13 +179,13 @@ int hold_lock_file_for_append(struct lock_file *lk, const char *path, int die_on orig_fd = open(path, O_RDONLY); if (orig_fd < 0) { if (errno != ENOENT) { - if (die_on_error) + if (flags & LOCK_DIE_ON_ERROR) die("cannot open '%s' for copying", path); close(fd); return error("cannot open '%s' for copying", path); } } else if (copy_fd(orig_fd, fd)) { - if (die_on_error) + if (flags & LOCK_DIE_ON_ERROR) exit(128); close(fd); return -1; @@ -215,7 +217,10 @@ int commit_lock_file(struct lock_file *lk) int hold_locked_index(struct lock_file *lk, int die_on_error) { - return hold_lock_file_for_update(lk, get_index_file(), die_on_error); + return hold_lock_file_for_update(lk, get_index_file(), + die_on_error + ? LOCK_DIE_ON_ERROR + : 0); } void set_alternate_index_output(const char *name) diff --git a/pack-refs.c b/pack-refs.c index 848d311c2b..2c76fb181f 100644 --- a/pack-refs.c +++ b/pack-refs.c @@ -89,7 +89,8 @@ int pack_refs(unsigned int flags) memset(&cbdata, 0, sizeof(cbdata)); cbdata.flags = flags; - fd = hold_lock_file_for_update(&packed, git_path("packed-refs"), 1); + fd = hold_lock_file_for_update(&packed, git_path("packed-refs"), + LOCK_DIE_ON_ERROR); cbdata.refs_file = fdopen(fd, "w"); if (!cbdata.refs_file) die("unable to create ref-pack file structure (%s)", @@ -790,7 +790,7 @@ static struct ref_lock *lock_ref_sha1_basic(const char *ref, const unsigned char struct ref_lock *lock; struct stat st; int last_errno = 0; - int type; + int type, lflags; int mustexist = (old_sha1 && !is_null_sha1(old_sha1)); lock = xcalloc(1, sizeof(struct ref_lock)); @@ -830,8 +830,11 @@ static struct ref_lock *lock_ref_sha1_basic(const char *ref, const unsigned char lock->lk = xcalloc(1, sizeof(struct lock_file)); - if (flags & REF_NODEREF) + lflags = LOCK_DIE_ON_ERROR; + if (flags & REF_NODEREF) { ref = orig_ref; + lflags |= LOCK_NODEREF; + } lock->ref_name = xstrdup(ref); lock->orig_ref_name = xstrdup(orig_ref); ref_file = git_path("%s", ref); @@ -845,8 +848,8 @@ static struct ref_lock *lock_ref_sha1_basic(const char *ref, const unsigned char error("unable to create directory for %s", ref_file); goto error_return; } - lock->lock_fd = hold_lock_file_for_update(lock->lk, ref_file, 1); + lock->lock_fd = hold_lock_file_for_update(lock->lk, ref_file, lflags); return old_sha1 ? verify_lock(lock, old_sha1, mustexist) : lock; error_return: @@ -346,7 +346,8 @@ int setup_rerere(struct string_list *merge_rr) return -1; merge_rr_path = xstrdup(git_path("MERGE_RR")); - fd = hold_lock_file_for_update(&write_lock, merge_rr_path, 1); + fd = hold_lock_file_for_update(&write_lock, merge_rr_path, + LOCK_DIE_ON_ERROR); read_rr(merge_rr); return fd; } diff --git a/sha1_file.c b/sha1_file.c index e2cb342a32..5cfae5d1ad 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -385,7 +385,7 @@ static void read_info_alternates(const char * relative_base, int depth) void add_to_alternates_file(const char *reference) { struct lock_file *lock = xcalloc(1, sizeof(struct lock_file)); - int fd = hold_lock_file_for_append(lock, git_path("objects/info/alternates"), 1); + int fd = hold_lock_file_for_append(lock, git_path("objects/info/alternates"), LOCK_DIE_ON_ERROR); char *alt = mkpath("%s/objects\n", reference); write_or_die(fd, alt, strlen(alt)); if (commit_lock_file(lock)) diff --git a/t/t7201-co.sh b/t/t7201-co.sh index 3f70adaf5a..f93478f97f 100755 --- a/t/t7201-co.sh +++ b/t/t7201-co.sh @@ -339,7 +339,7 @@ test_expect_success 'checkout w/--track from non-branch HEAD fails' ' test "z$(git rev-parse master^0)" = "z$(git rev-parse HEAD)" ' -test_expect_failure 'detach a symbolic link HEAD' ' +test_expect_success 'detach a symbolic link HEAD' ' git checkout master && git config --bool core.prefersymlinkrefs yes && git checkout side && |