Add a new command (and command-line arg) to allow index-helpers to
exit cleanly.
This is mainly useful for tests.
Signed-off-by: David Turner <dturner@xxxxxxxxxxxxxxxx>
---
index-helper.c | 31 ++++++++++++++++++++++++++++++-
t/t7900-index-helper.sh | 12 ++++++++++++
2 files changed, 42 insertions(+), 1 deletion(-)
diff --git a/index-helper.c b/index-helper.c
index 1d30400..3e0990e 100644
--- a/index-helper.c
+++ b/index-helper.c
@@ -395,6 +395,8 @@ static void loop(int fd, int idle_in_seconds)
* alive, nothing to do.
*/
}
+ } else if (!strcmp(command.buf, "die")) {
+ break;
} else {
warning("BUG: Bogus command %s", command.buf);
}
@@ -425,10 +427,29 @@ static const char * const usage_text[] = {
NULL
};
+static void request_kill(void)
+{
+ int fd = connect_to_index_helper();
+
+ if (fd >= 0) {
+ write_in_full(fd, "die", 4);
+ close(fd);
+ }
+
+ /*
+ * The child will try to do this anyway, but we want to be
+ * ready to launch a new daemon immediately after this command
+ * returns.
+ */
+
+ unlink(git_path("index-helper.path"));
+ return;
+}
+
int main(int argc, char **argv)
{
const char *prefix;
- int idle_in_seconds = 600, detach = 0;
+ int idle_in_seconds = 600, detach = 0, kill = 0;
int fd;
struct strbuf socket_path = STRBUF_INIT;
struct option options[] = {
@@ -437,6 +458,7 @@ int main(int argc, char **argv)
OPT_BOOL(0, "strict", &to_verify,
"verify shared memory after creating"),
OPT_BOOL(0, "detach", &detach, "detach the process"),
+ OPT_BOOL(0, "kill", &kill, "request that existing index helper processes exit"),
OPT_END()
};
@@ -451,6 +473,13 @@ int main(int argc, char **argv)
options, usage_text, 0))
die(_("too many arguments"));
+ if (kill) {
+ if (detach)
+ die(_("--kill doesn't want any other options"));
+ request_kill();
+ return 0;
+ }
+
atexit(cleanup);
sigchain_push_common(cleanup_on_signal);
diff --git a/t/t7900-index-helper.sh b/t/t7900-index-helper.sh
index c127ed7..fdb0d7b 100755
--- a/t/t7900-index-helper.sh
+++ b/t/t7900-index-helper.sh
@@ -20,4 +20,16 @@ test_expect_success 'index-helper smoke test' '
test_path_is_missing .git/index-helper.path
'
+test_expect_success 'index-helper creates usable path file and can be killed' '
+ test_when_finished "git index-helper --kill" &&
+ test_path_is_missing .git/index-helper.path &&
+ git index-helper --detach &&
+ test -L .git/index-helper.path &&
+ dir="$(readlink .git/index-helper.path)" &&
+ test -S "$dir/s" &&
+ ls -ld "$dir" | grep ^drwx...--- &&
+ git index-helper --kill &&
+ test_path_is_missing .git/index-helper.path
+'
+
test_done
--
2.4.2.767.g62658d5-twtrsrc
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