Merge branch 'lt/pack-object-memuse' into maint

diff --git a/branch.c b/branch.c
index b1ac837f3d30c826ddbe29492b906bf2d0de0a1a..1f00e44deb28afe74ae4f0b85b23039476032fe5 100644 (file)
--- a/branch.c
+++ b/branch.c
@@ -103,14 +103,22 @@ void create_branch(const char *head,
        struct ref_lock *lock;
        struct commit *commit;
        unsigned char sha1[20];
-       char *real_ref, ref[PATH_MAX], msg[PATH_MAX + 20];
+       char *real_ref, msg[PATH_MAX + 20];
+       struct strbuf ref = STRBUF_INIT;
        int forcing = 0;
+       int len;
 
-       snprintf(ref, sizeof ref, "refs/heads/%s", name);
-       if (check_ref_format(ref))
+       len = strlen(name);
+       if (interpret_nth_last_branch(name, &ref) != len) {
+               strbuf_reset(&ref);
+               strbuf_add(&ref, name, len);
+       }
+       strbuf_splice(&ref, 0, 0, "refs/heads/", 11);
+
+       if (check_ref_format(ref.buf))
                die("'%s' is not a valid branch name.", name);
 
-       if (resolve_ref(ref, sha1, 1, NULL)) {
+       if (resolve_ref(ref.buf, sha1, 1, NULL)) {
                if (!force)
                        die("A branch named '%s' already exists.", name);
                else if (!is_bare_repository() && !strcmp(head, name))
@@ -142,7 +150,7 @@ void create_branch(const char *head,
                die("Not a valid branch point: '%s'.", start_name);
        hashcpy(sha1, commit->object.sha1);
 
-       lock = lock_any_ref_for_update(ref, NULL, 0);
+       lock = lock_any_ref_for_update(ref.buf, NULL, 0);
        if (!lock)
                die("Failed to lock ref for update: %s.", strerror(errno));
 
@@ -162,6 +170,7 @@ void create_branch(const char *head,
        if (write_ref_sha1(lock, sha1, msg) < 0)
                die("Failed to write ref: %s.", strerror(errno));
 
+       strbuf_release(&ref);
        free(real_ref);
 }