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refs: add refs_head_ref()

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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy 2017-08-23 19:36:55 +07:00 committed by Junio C Hamano
parent 29babbeeb3
commit 62f0b399e0
2 changed files with 15 additions and 10 deletions
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23
refs.c
View File

@ -1248,27 +1248,30 @@ int refs_rename_ref_available(struct ref_store *refs,
return ok;
}
int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
{
struct object_id oid;
int flag;
if (submodule) {
if (resolve_gitlink_ref(submodule, "HEAD", oid.hash) == 0)
return fn("HEAD", &oid, 0, cb_data);
return 0;
}
if (!read_ref_full("HEAD", RESOLVE_REF_READING, oid.hash, &flag))
if (!refs_read_ref_full(refs, "HEAD", RESOLVE_REF_READING,
oid.hash, &flag))
return fn("HEAD", &oid, flag, cb_data);
return 0;
}
int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
{
struct ref_store *refs = get_submodule_ref_store(submodule);
if (!refs)
return -1;
return refs_head_ref(refs, fn, cb_data);
}
int head_ref(each_ref_fn fn, void *cb_data)
{
return head_ref_submodule(NULL, fn, cb_data);
return refs_head_ref(get_main_ref_store(), fn, cb_data);
}
struct ref_iterator *refs_ref_iterator_begin(

2
refs.h
View File

@ -275,6 +275,8 @@ typedef int each_ref_fn(const char *refname,
* modifies the reference also returns a nonzero value to immediately
* stop the iteration. Returned references are sorted.
*/
int refs_head_ref(struct ref_store *refs,
each_ref_fn fn, void *cb_data);
int refs_for_each_ref(struct ref_store *refs,
each_ref_fn fn, void *cb_data);
int refs_for_each_ref_in(struct ref_store *refs, const char *prefix,