clone-pack: use create_symref() instead of raw symlink.

This was the last instance of symlink() in coreish part.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/clone-pack.c b/clone-pack.c
index 49820c6..c102ca8 100644 (file)
--- a/clone-pack.c
+++ b/clone-pack.c
@@ -51,6 +51,7 @@ static void write_refs(struct ref *ref)
        struct ref *head = NULL, *head_ptr, *master_ref;
        char *head_path;
 
+       /* Upload-pack must report HEAD first */
        if (!strcmp(ref->name, "HEAD")) {
                head = ref;
                ref = ref->next;
@@ -60,17 +61,21 @@ static void write_refs(struct ref *ref)
        while (ref) {
                if (is_master(ref))
                        master_ref = ref;
-               if (head && !memcmp(ref->old_sha1, head->old_sha1, 20)) {
-                       if (!head_ptr || ref == master_ref)
-                               head_ptr = ref;
-               }
+               if (head &&
+                   !memcmp(ref->old_sha1, head->old_sha1, 20) &&
+                   !strncmp(ref->name, "refs/heads/",11) &&
+                   (!head_ptr || ref == master_ref))
+                       head_ptr = ref;
+
                write_one_ref(ref);
                ref = ref->next;
        }
-       if (!head)
+       if (!head) {
+               fprintf(stderr, "No HEAD in remote.\n");
                return;
+       }
 
-       head_path = git_path("HEAD");
+       head_path = strdup(git_path("HEAD"));
        if (!head_ptr) {
                /*
                 * If we had a master ref, and it wasn't HEAD, we need to undo the
@@ -82,6 +87,7 @@ static void write_refs(struct ref *ref)
                        unlink(head_path);
                }
                write_one_ref(head);
+               free(head_path);
                return;
        }
 
@@ -89,13 +95,15 @@ static void write_refs(struct ref *ref)
        if (master_ref)
                return;
 
+       fprintf(stderr, "Setting HEAD to %s\n", head_ptr->name);
+
        /*
         * Uhhuh. Other end didn't have master. We start HEAD off with
         * the first branch with the same value.
         */
-       unlink(head_path);
-       if (symlink(head_ptr->name, head_path) < 0)
+       if (create_symref(head_path, head_ptr->name) < 0)
                die("unable to link HEAD to %s", head_ptr->name);
+       free(head_path);
 }
 
 static int clone_pack(int fd[2], int nr_match, char **match)