git-gc --auto: add pre-auto-gc hook
If such a hook is available and exits with a non-zero status, then
git-gc --auto won't run.
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin-gc.c b/builtin-gc.c
index 8cef36f..f99ebc7 100644
--- a/builtin-gc.c
+++ b/builtin-gc.c
@@ -157,6 +157,34 @@
return gc_auto_pack_limit <= cnt;
}
+static int run_hook(void)
+{
+ const char *argv[2];
+ struct child_process hook;
+ int ret;
+
+ argv[0] = git_path("hooks/pre-auto-gc");
+ argv[1] = NULL;
+
+ if (access(argv[0], X_OK) < 0)
+ return 0;
+
+ memset(&hook, 0, sizeof(hook));
+ hook.argv = argv;
+ hook.no_stdin = 1;
+ hook.stdout_to_stderr = 1;
+
+ ret = start_command(&hook);
+ if (ret) {
+ warning("Could not spawn %s", argv[0]);
+ return ret;
+ }
+ ret = finish_command(&hook);
+ if (ret == -ERR_RUN_COMMAND_WAITPID_SIGNAL)
+ warning("%s exited due to uncaught signal", argv[0]);
+ return ret;
+}
+
static int need_to_gc(void)
{
/*
@@ -176,6 +204,9 @@
append_option(argv_repack, "-A", MAX_ADD);
else if (!too_many_loose_objects())
return 0;
+
+ if (run_hook())
+ return 0;
return 1;
}
