From: Jeff Hostetler <jeffhost@xxxxxxxxxxxxx>
Teach the listener thread to shutdown the daemon if the spelling of the
worktree root directory changes.
Signed-off-by: Jeff Hostetler <jeffhost@xxxxxxxxxxxxx>
---
compat/fsmonitor/fsm-listen-darwin.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/compat/fsmonitor/fsm-listen-darwin.c b/compat/fsmonitor/fsm-listen-darwin.c
index 87a8476b09f..d3afbbc53d6 100644
--- a/compat/fsmonitor/fsm-listen-darwin.c
+++ b/compat/fsmonitor/fsm-listen-darwin.c
@@ -178,6 +178,11 @@ static void log_flags_set(const char *path, const FSEventStreamEventFlags flag)
strbuf_release(&msg);
}
+static int ef_is_root_changed(const FSEventStreamEventFlags ef)
+{
+ return (ef & kFSEventStreamEventFlagRootChanged);
+}
+
static int ef_is_root_delete(const FSEventStreamEventFlags ef)
{
return (ef & kFSEventStreamEventFlagItemIsDir &&
@@ -287,6 +292,26 @@ static void fsevent_callback(ConstFSEventStreamRef streamRef,
continue;
}
+ if (ef_is_root_changed(event_flags[k])) {
+ /*
+ * The spelling of the pathname of the root directory
+ * has changed. This includes the name of the root
+ * directory itself of of any parent directory in the
+ * path.
+ *
+ * (There may be other conditions that throw this,
+ * but I couldn't find any information on it.)
+ *
+ * Force a shutdown now and avoid things getting
+ * out of sync. The Unix domain socket is inside
+ * the .git directory and a spelling change will make
+ * it hard for clients to rendezvous with us.
+ */
+ trace_printf_key(&trace_fsmonitor,
+ "event: root changed");
+ goto force_shutdown;
+ }
+
if (ef_ignore_xattr(event_flags[k])) {
trace_printf_key(&trace_fsmonitor,
"ignore-xattr: '%s', flags=0x%x",
--
gitgitgadget
