reflog: avoid constructing .lock path with git_path

Among pathnames in $GIT_DIR, e.g. "index" or "packed-refs", we want to
automatically and silently map some of them to the $GIT_DIR of the
repository we are borrowing from via $GIT_COMMON_DIR mechanism.  When
we formulate the pathname for its lockfile, we want it to be in the
same location as its final destination.  "index" is not shared and
needs to remain in the borrowing repository, while "packed-refs" is
shared and needs to go to the borrowed repository.

git_path() could be taught about the ".lock" suffix and map
"index.lock" and "packed-refs.lock" the same way their basenames are
mapped, but instead the caller can help by asking where the basename
(e.g. "index") is mapped to git_path() and then appending ".lock"
after the mapping is done.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/reflog.c b/builtin/reflog.c
index 2d85d260ca66deb060b837f86d81a7aad2761b69..fb07c667a87b19a74a5ef0104a1b3cac1e92f7a8 100644 (file)
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -372,7 +372,7 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
        if (!reflog_exists(ref))
                goto finish;
        if (!cmd->dry_run) {
-               newlog_path = git_pathdup("logs/%s.lock", ref);
+               newlog_path = mkpathdup("%s.lock", log_file);
                cb.newlog = fopen(newlog_path, "w");
        }