refactor signal handling for cleanup functions

The current code is very inconsistent about which signals
are caught for doing cleanup of temporary files and lock
files. Some callsites checked only SIGINT, while others
checked a variety of death-dealing signals.

This patch factors out those signals to a single function,
and then calls it everywhere. For some sites, that means
this is a simple clean up. For others, it is an improvement
in that they will now properly clean themselves up after a
larger variety of signals.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/diff.c b/diff.c
index 9c9977d89..8ce898a6b 100644
--- a/diff.c
+++ b/diff.c
@@ -1903,7 +1903,7 @@ static struct diff_tempfile *prepare_temp_file(const char *name,
 
 	if (!remove_tempfile_installed) {
 		atexit(remove_tempfile);
-		sigchain_push(SIGINT, remove_tempfile_on_signal);
+		sigchain_push_common(remove_tempfile_on_signal);
 		remove_tempfile_installed = 1;
 	}