diff options
Diffstat (limited to 'refs.c')
| -rw-r--r-- | refs.c | 75 |
1 files changed, 62 insertions, 13 deletions
@@ -157,6 +157,9 @@ static struct cached_refs { struct ref_list *loose; struct ref_list *packed; } cached_refs; +static struct ref_list *current_ref; + +static struct ref_list *extra_refs; static void free_ref_list(struct ref_list *list) { @@ -214,6 +217,17 @@ static void read_packed_refs(FILE *f, struct cached_refs *cached_refs) cached_refs->packed = sort_ref_list(list); } +void add_extra_ref(const char *name, const unsigned char *sha1, int flag) +{ + extra_refs = add_ref(name, sha1, flag, extra_refs, NULL); +} + +void clear_extra_refs(void) +{ + free_ref_list(extra_refs); + extra_refs = NULL; +} + static struct ref_list *get_packed_refs(void) { if (!cached_refs.did_packed) { @@ -351,6 +365,7 @@ int resolve_gitlink_ref(const char *path, const char *refname, unsigned char *re { int len = strlen(path), retval; char *gitdir; + const char *tmp; while (len && path[len-1] == '/') len--; @@ -358,16 +373,27 @@ int resolve_gitlink_ref(const char *path, const char *refname, unsigned char *re return -1; gitdir = xmalloc(len + MAXREFLEN + 8); memcpy(gitdir, path, len); - memcpy(gitdir + len, "/.git/", 7); - - retval = resolve_gitlink_ref_recursive(gitdir, len+6, refname, result, 0); + memcpy(gitdir + len, "/.git", 6); + len += 5; + + tmp = read_gitfile_gently(gitdir); + if (tmp) { + free(gitdir); + len = strlen(tmp); + gitdir = xmalloc(len + MAXREFLEN + 3); + memcpy(gitdir, tmp, len); + } + gitdir[len] = '/'; + gitdir[++len] = '\0'; + retval = resolve_gitlink_ref_recursive(gitdir, len, refname, result, 0); free(gitdir); return retval; } const char *resolve_ref(const char *ref, unsigned char *sha1, int reading, int *flag) { - int depth = MAXDEPTH, len; + int depth = MAXDEPTH; + ssize_t len; char buffer[256]; static char ref_buffer[256]; @@ -476,6 +502,7 @@ static int do_one_ref(const char *base, each_ref_fn fn, int trim, error("%s does not point to a valid object!", entry->name); return 0; } + current_ref = entry; return fn(entry->name + trim, entry->sha1, entry->flag, cb_data); } @@ -485,6 +512,16 @@ int peel_ref(const char *ref, unsigned char *sha1) unsigned char base[20]; struct object *o; + if (current_ref && (current_ref->name == ref + || !strcmp(current_ref->name, ref))) { + if (current_ref->flag & REF_KNOWS_PEELED) { + hashcpy(sha1, current_ref->peeled); + return 0; + } + hashcpy(base, current_ref->sha1); + goto fallback; + } + if (!resolve_ref(ref, base, 1, &flag)) return -1; @@ -504,9 +541,9 @@ int peel_ref(const char *ref, unsigned char *sha1) } } - /* fallback - callers should not call this for unpacked refs */ +fallback: o = parse_object(base); - if (o->type == OBJ_TAG) { + if (o && o->type == OBJ_TAG) { o = deref_tag(o, ref, 0); if (o) { hashcpy(sha1, o->sha1); @@ -519,10 +556,15 @@ int peel_ref(const char *ref, unsigned char *sha1) static int do_for_each_ref(const char *base, each_ref_fn fn, int trim, void *cb_data) { - int retval; + int retval = 0; struct ref_list *packed = get_packed_refs(); struct ref_list *loose = get_loose_refs(); + struct ref_list *extra; + + for (extra = extra_refs; extra; extra = extra->next) + retval = do_one_ref(base, fn, trim, cb_data, extra); + while (packed && loose) { struct ref_list *entry; int cmp = strcmp(packed->name, loose->name); @@ -539,15 +581,18 @@ static int do_for_each_ref(const char *base, each_ref_fn fn, int trim, } retval = do_one_ref(base, fn, trim, cb_data, entry); if (retval) - return retval; + goto end_each; } for (packed = packed ? packed : loose; packed; packed = packed->next) { retval = do_one_ref(base, fn, trim, cb_data, packed); if (retval) - return retval; + goto end_each; } - return 0; + +end_each: + current_ref = NULL; + return retval; } int head_ref(each_ref_fn fn, void *cb_data) @@ -880,7 +925,7 @@ int delete_ref(const char *refname, const unsigned char *sha1) i = strlen(lock->lk->filename) - 5; /* .lock */ lock->lk->filename[i] = 0; err = unlink(lock->lk->filename); - if (err) { + if (err && errno != ENOENT) { ret = 1; error("unlink(%s) failed: %s", lock->lk->filename, strerror(errno)); @@ -1018,7 +1063,7 @@ int rename_ref(const char *oldref, const char *newref, const char *logmsg) return 1; } -static int close_ref(struct ref_lock *lock) +int close_ref(struct ref_lock *lock) { if (close_lock_file(lock->lk)) return -1; @@ -1026,7 +1071,7 @@ static int close_ref(struct ref_lock *lock) return 0; } -static int commit_ref(struct ref_lock *lock) +int commit_ref(struct ref_lock *lock) { if (commit_lock_file(lock->lk)) return -1; @@ -1367,6 +1412,10 @@ int read_ref_at(const char *ref, unsigned long at_time, int cnt, unsigned char * tz = strtoul(tz_c, NULL, 10); if (get_sha1_hex(logdata, sha1)) die("Log %s is corrupt.", logfile); + if (is_null_sha1(sha1)) { + if (get_sha1_hex(logdata + 41, sha1)) + die("Log %s is corrupt.", logfile); + } if (msg) *msg = ref_msg(logdata, logend); munmap(log_mapped, mapsz); |