rollback lock files on more signals than just SIGINT

Other signals are also common, for example SIGTERM and SIGHUP.
This patch modifies the lock file mechanism to catch more signals.
It also modifies http-push.c which was missing SIGTERM.

Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/lockfile.c b/lockfile.c
index cfc7335..4023797 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -135,6 +135,9 @@ static int lock_file(struct lock_file *lk, const char *path)
 	if (0 <= lk->fd) {
 		if (!lock_file_list) {
 			signal(SIGINT, remove_lock_file_on_signal);
+			signal(SIGHUP, remove_lock_file_on_signal);
+			signal(SIGTERM, remove_lock_file_on_signal);
+			signal(SIGQUIT, remove_lock_file_on_signal);
 			atexit(remove_lock_file);
 		}
 		lk->owner = getpid();