refs: move head_ref{,_submodule} to the common code

These don't use any backend-specific functions.  These were previously
defined in terms of the do_head_ref helper function, but since they
are otherwise identical, we don't need that function.

Signed-off-by: David Turner <dturner@twopensource.com>
Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/refs.c b/refs.c
index b0e6ece6f43437bb7d59490d64802baa3b277090..6b8c16cdd834b3294ef2e3817162b17494e47404 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -1080,3 +1080,26 @@ int rename_ref_available(const char *oldname, const char *newname)
        strbuf_release(&err);
        return ret;
 }
+
+int head_ref_submodule(const char *submodule, 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))
+               return fn("HEAD", &oid, flag, cb_data);
+
+       return 0;
+}
+
+int head_ref(each_ref_fn fn, void *cb_data)
+{
+       return head_ref_submodule(NULL, fn, cb_data);
+}

diff --git a/refs/files-backend.c b/refs/files-backend.c
index 81f68f846b69af65badfbe8c25d4a03601fb23c8..c07dc418d61a4cc46e5400274a1b4d8b3dd454fb 100644 (file)
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -1745,34 +1745,6 @@ static int do_for_each_ref(struct ref_cache *refs, const char *base,
        return do_for_each_entry(refs, base, do_one_ref, &data);
 }
 
-static int do_head_ref(const char *submodule, 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))
-               return fn("HEAD", &oid, flag, cb_data);
-
-       return 0;
-}
-
-int head_ref(each_ref_fn fn, void *cb_data)
-{
-       return do_head_ref(NULL, fn, cb_data);
-}
-
-int head_ref_submodule(const char *submodule, each_ref_fn fn, void *cb_data)
-{
-       return do_head_ref(submodule, fn, cb_data);
-}
-
 int for_each_ref(each_ref_fn fn, void *cb_data)
 {
        return do_for_each_ref(&ref_cache, "", fn, 0, 0, cb_data);