char name[FLEX_ARRAY];
};
+static struct ref_dir *get_ref_dir(struct ref_entry *entry)
+{
+ assert(entry->flag & REF_DIR);
+ return &entry->u.subdir;
+}
+
static struct ref_entry *create_ref_entry(const char *refname,
const unsigned char *sha1, int flag,
int check_name)
static void free_ref_entry(struct ref_entry *entry)
{
if (entry->flag & REF_DIR)
- clear_ref_dir(&entry->u.subdir);
+ clear_ref_dir(get_ref_dir(entry));
free(entry);
}
* directory if it is missing; otherwise, return NULL if the desired
* directory cannot be found.
*/
-static struct ref_entry *search_for_subdir(struct ref_dir *dir,
- const char *subdirname, int mkdir)
+static struct ref_dir *search_for_subdir(struct ref_dir *dir,
+ const char *subdirname, int mkdir)
{
struct ref_entry *entry = search_ref_dir(dir, subdirname);
if (!entry) {
entry = create_dir_entry(subdirname);
add_entry_to_dir(dir, entry);
}
- assert(entry->flag & REF_DIR);
- return entry;
+ return get_ref_dir(entry);
}
/*
static struct ref_dir *find_containing_dir(struct ref_dir *dir,
const char *refname, int mkdir)
{
- char *refname_copy = xstrdup(refname);
- char *slash;
- struct ref_entry *entry;
- for (slash = strchr(refname_copy, '/'); slash; slash = strchr(slash + 1, '/')) {
- char tmp = slash[1];
- slash[1] = '\0';
- entry = search_for_subdir(dir, refname_copy, mkdir);
- slash[1] = tmp;
- if (!entry)
+ struct strbuf dirname;
+ const char *slash;
+ strbuf_init(&dirname, PATH_MAX);
+ for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) {
+ struct ref_dir *subdir;
+ strbuf_add(&dirname,
+ refname + dirname.len,
+ (slash + 1) - (refname + dirname.len));
+ subdir = search_for_subdir(dir, dirname.buf, mkdir);
+ if (!subdir)
break;
- dir = &entry->u.subdir;
+ dir = subdir;
}
- free(refname_copy);
+ strbuf_release(&dirname);
return dir;
}
struct ref_entry *entry = dir->entries[i];
int retval;
if (entry->flag & REF_DIR) {
- sort_ref_dir(&entry->u.subdir);
- retval = do_for_each_ref_in_dir(&entry->u.subdir, 0,
+ struct ref_dir *subdir = get_ref_dir(entry);
+ sort_ref_dir(subdir);
+ retval = do_for_each_ref_in_dir(subdir, 0,
base, fn, trim, flags, cb_data);
} else {
retval = do_one_ref(base, fn, trim, flags, cb_data, entry);
if (cmp == 0) {
if ((e1->flag & REF_DIR) && (e2->flag & REF_DIR)) {
/* Both are directories; descend them in parallel. */
- sort_ref_dir(&e1->u.subdir);
- sort_ref_dir(&e2->u.subdir);
+ struct ref_dir *subdir1 = get_ref_dir(e1);
+ struct ref_dir *subdir2 = get_ref_dir(e2);
+ sort_ref_dir(subdir1);
+ sort_ref_dir(subdir2);
retval = do_for_each_ref_in_dirs(
- &e1->u.subdir, &e2->u.subdir,
+ subdir1, subdir2,
base, fn, trim, flags, cb_data);
i1++;
i2++;
i2++;
}
if (e->flag & REF_DIR) {
- sort_ref_dir(&e->u.subdir);
+ struct ref_dir *subdir = get_ref_dir(e);
+ sort_ref_dir(subdir);
retval = do_for_each_ref_in_dir(
- &e->u.subdir, 0,
+ subdir, 0,
base, fn, trim, flags, cb_data);
} else {
retval = do_one_ref(base, fn, trim, flags, cb_data, e);
*/
static struct ref_cache {
struct ref_cache *next;
- char did_loose;
- char did_packed;
- struct ref_dir loose;
- struct ref_dir packed;
+ struct ref_entry *loose;
+ struct ref_entry *packed;
/* The submodule name, or "" for the main repo. */
char name[FLEX_ARRAY];
} *ref_cache;
static void clear_packed_ref_cache(struct ref_cache *refs)
{
- if (refs->did_packed)
- clear_ref_dir(&refs->packed);
- refs->did_packed = 0;
+ if (refs->packed) {
+ free_ref_entry(refs->packed);
+ refs->packed = NULL;
+ }
}
static void clear_loose_ref_cache(struct ref_cache *refs)
{
- if (refs->did_loose)
- clear_ref_dir(&refs->loose);
- refs->did_loose = 0;
+ if (refs->loose) {
+ free_ref_entry(refs->loose);
+ refs->loose = NULL;
+ }
}
static struct ref_cache *create_ref_cache(const char *submodule)
static struct ref_dir *get_packed_refs(struct ref_cache *refs)
{
- if (!refs->did_packed) {
+ if (!refs->packed) {
const char *packed_refs_file;
FILE *f;
+ refs->packed = create_dir_entry("");
if (*refs->name)
packed_refs_file = git_path_submodule(refs->name, "packed-refs");
else
packed_refs_file = git_path("packed-refs");
f = fopen(packed_refs_file, "r");
if (f) {
- read_packed_refs(f, &refs->packed);
+ read_packed_refs(f, get_ref_dir(refs->packed));
fclose(f);
}
- refs->did_packed = 1;
}
- return &refs->packed;
+ return get_ref_dir(refs->packed);
}
void add_packed_ref(const char *refname, const unsigned char *sha1)
* dirname must end with '/'. dir must be the directory entry
* corresponding to dirname.
*/
-static void get_ref_dir(struct ref_cache *refs, const char *dirname,
- struct ref_dir *dir)
+static void read_loose_refs(struct ref_cache *refs, const char *dirname,
+ struct ref_dir *dir)
{
DIR *d;
const char *path;
; /* silently ignore */
} else if (S_ISDIR(st.st_mode)) {
strbuf_addch(&refname, '/');
- get_ref_dir(refs, refname.buf,
- &search_for_subdir(dir, refname.buf, 1)->u.subdir);
+ read_loose_refs(refs, refname.buf,
+ search_for_subdir(dir, refname.buf, 1));
} else {
if (*refs->name) {
hashclr(sha1);
static struct ref_dir *get_loose_refs(struct ref_cache *refs)
{
- if (!refs->did_loose) {
- get_ref_dir(refs, "refs/",
- &search_for_subdir(&refs->loose, "refs/", 1)->u.subdir);
- refs->did_loose = 1;
+ if (!refs->loose) {
+ refs->loose = create_dir_entry("");
+ read_loose_refs(refs, "refs/",
+ search_for_subdir(get_ref_dir(refs->loose),
+ "refs/", 1));
}
- return &refs->loose;
+ return get_ref_dir(refs->loose);
}
/* We allow "recursive" symbolic refs. Only within reason, though */
return for_each_recent_reflog_ent(refname, fn, 0, cb_data);
}
-static int do_for_each_reflog(const char *base, each_ref_fn fn, void *cb_data)
+/*
+ * Call fn for each reflog in the namespace indicated by name. name
+ * must be empty or end with '/'. Name will be used as a scratch
+ * space, but its contents will be restored before return.
+ */
+static int do_for_each_reflog(struct strbuf *name, each_ref_fn fn, void *cb_data)
{
- DIR *d = opendir(git_path("logs/%s", base));
+ DIR *d = opendir(git_path("logs/%s", name->buf));
int retval = 0;
+ struct dirent *de;
+ int oldlen = name->len;
- if (d) {
- struct dirent *de;
- int baselen = strlen(base);
- char *log = xmalloc(baselen + 257);
-
- memcpy(log, base, baselen);
- if (baselen && base[baselen-1] != '/')
- log[baselen++] = '/';
+ if (!d)
+ return name->len ? errno : 0;
- while ((de = readdir(d)) != NULL) {
- struct stat st;
- int namelen;
+ while ((de = readdir(d)) != NULL) {
+ struct stat st;
- if (de->d_name[0] == '.')
- continue;
- namelen = strlen(de->d_name);
- if (namelen > 255)
- continue;
- if (has_extension(de->d_name, ".lock"))
- continue;
- memcpy(log + baselen, de->d_name, namelen+1);
- if (stat(git_path("logs/%s", log), &st) < 0)
- continue;
+ if (de->d_name[0] == '.')
+ continue;
+ if (has_extension(de->d_name, ".lock"))
+ continue;
+ strbuf_addstr(name, de->d_name);
+ if (stat(git_path("logs/%s", name->buf), &st) < 0) {
+ ; /* silently ignore */
+ } else {
if (S_ISDIR(st.st_mode)) {
- retval = do_for_each_reflog(log, fn, cb_data);
+ strbuf_addch(name, '/');
+ retval = do_for_each_reflog(name, fn, cb_data);
} else {
unsigned char sha1[20];
- if (read_ref_full(log, sha1, 0, NULL))
- retval = error("bad ref for %s", log);
+ if (read_ref_full(name->buf, sha1, 0, NULL))
+ retval = error("bad ref for %s", name->buf);
else
- retval = fn(log, sha1, 0, cb_data);
+ retval = fn(name->buf, sha1, 0, cb_data);
}
if (retval)
break;
}
- free(log);
- closedir(d);
+ strbuf_setlen(name, oldlen);
}
- else if (*base)
- return errno;
+ closedir(d);
return retval;
}
int for_each_reflog(each_ref_fn fn, void *cb_data)
{
- return do_for_each_reflog("", fn, cb_data);
+ int retval;
+ struct strbuf name;
+ strbuf_init(&name, PATH_MAX);
+ retval = do_for_each_reflog(&name, fn, cb_data);
+ strbuf_release(&name);
+ return retval;
}
int update_ref(const char *action, const char *refname,