From: Miklos Vajna <vmiklos@frugalware.org>
Date: Wed, 2 Apr 2008 19:34:38 +0000 (+0200)
Subject: git-gc --auto: add pre-auto-gc hook
X-Git-Tag: v1.5.6-rc0~136^2~2
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=bde30540169dd625cbd862ff6f38bc8224ec081c;p=git.git

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 8cef36f6a..f99ebc792 100644
--- a/builtin-gc.c
+++ b/builtin-gc.c
@@ -157,6 +157,34 @@ static int too_many_packs(void)
 	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 @@ static int need_to_gc(void)
 		append_option(argv_repack, "-A", MAX_ADD);
 	else if (!too_many_loose_objects())
 		return 0;
+
+	if (run_hook())
+		return 0;
 	return 1;
 }