In the --auto code path, gc_before_repack() is called once in parent
process then again in the forked process. Stop the second run.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 builtin/gc.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/builtin/gc.c b/builtin/gc.c
index 8d219d8..fb0cff3 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -261,6 +261,11 @@ static const char *lock_repo_for_gc(int force, pid_t* 
ret_pid)
 
 static int gc_before_repack(void)
 {
+       static int nr_runs;
+
+       if (nr_runs++)
+               return 0;
+
        if (pack_refs && run_command_v_opt(pack_refs_cmd.argv, RUN_GIT_CMD))
                return error(FAILED_RUN, pack_refs_cmd.argv[0]);
 
-- 
2.1.0.rc0.78.gc0d8480

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