enable separate reflog for HEAD

If HEAD is tied to a branch then both logs/HEAD and logs/heads/<branch> are
updated.  This is also true for any symbolic refs in general, but only HEAD
will see its reflog created automatically.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/refs.c b/refs.c
index bd76ea65a904b098c80f6a719b28a316b79e9204..5b2ca086aa68c96d5c293190f074b1d59fa4e313 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -940,7 +940,8 @@ static int log_ref_write(const char *ref_name, const unsigned char *old_sha1,
 
        if (log_all_ref_updates &&
            (!strncmp(ref_name, "refs/heads/", 11) ||
-            !strncmp(ref_name, "refs/remotes/", 13))) {
+            !strncmp(ref_name, "refs/remotes/", 13) ||
+            !strcmp(ref_name, "HEAD"))) {
                if (safe_create_leading_directories(log_file) < 0)
                        return error("unable to create directory for %s",
                                     log_file);
@@ -1016,7 +1017,9 @@ int write_ref_sha1(struct ref_lock *lock,
                return -1;
        }
        invalidate_cached_refs();
-       if (log_ref_write(lock->ref_name, lock->old_sha1, sha1, logmsg) < 0) {
+       if (log_ref_write(lock->ref_name, lock->old_sha1, sha1, logmsg) < 0 ||
+           (strcmp(lock->ref_name, lock->orig_ref_name) &&
+            log_ref_write(lock->orig_ref_name, lock->old_sha1, sha1, logmsg) < 0)) {
                unlock_ref(lock);
                return -1;
        }