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struct ref_dir: store a reference to the enclosing ref_cache

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This means that a directory ref_entry contains all of the information
needed by read_loose_refs().

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty 2012-04-27 00:27:05 +02:00 committed by Junio C Hamano
parent 3f3aa1bc62
commit f006c42a11
1 changed files with 11 additions and 4 deletions
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15
refs.c
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@ -106,6 +106,8 @@ struct ref_value {
unsigned char peeled[20];
};
struct ref_cache;
struct ref_dir {
int nr, alloc;
@ -117,6 +119,9 @@ struct ref_dir {
*/
int sorted;
/* A pointer to the ref_cache that contains this ref_dir. */
struct ref_cache *ref_cache;
struct ref_entry **entries;
};
@ -234,12 +239,14 @@ static void clear_ref_dir(struct ref_dir *dir)
* dirname is the name of the directory with a trailing slash (e.g.,
* "refs/heads/") or "" for the top-level directory.
*/
static struct ref_entry *create_dir_entry(const char *dirname)
static struct ref_entry *create_dir_entry(struct ref_cache *ref_cache,
const char *dirname)
{
struct ref_entry *direntry;
int len = strlen(dirname);
direntry = xcalloc(1, sizeof(struct ref_entry) + len + 1);
memcpy(direntry->name, dirname, len + 1);
direntry->u.subdir.ref_cache = ref_cache;
direntry->flag = REF_DIR;
return direntry;
}
@ -296,7 +303,7 @@ static struct ref_dir *search_for_subdir(struct ref_dir *dir,
if (!entry) {
if (!mkdir)
return NULL;
entry = create_dir_entry(subdirname);
entry = create_dir_entry(dir->ref_cache, subdirname);
add_entry_to_dir(dir, entry);
}
return get_ref_dir(entry);
@ -753,7 +760,7 @@ static struct ref_dir *get_packed_refs(struct ref_cache *refs)
const char *packed_refs_file;
FILE *f;
refs->packed = create_dir_entry("");
refs->packed = create_dir_entry(refs, "");
if (*refs->name)
packed_refs_file = git_path_submodule(refs->name, "packed-refs");
else
@ -843,7 +850,7 @@ static void read_loose_refs(struct ref_cache *refs, const char *dirname,
static struct ref_dir *get_loose_refs(struct ref_cache *refs)
{
if (!refs->loose) {
refs->loose = create_dir_entry("");
refs->loose = create_dir_entry(refs, "");
read_loose_refs(refs, "refs/",
search_for_subdir(get_ref_dir(refs->loose),
"refs/", 1));