fsm-listen-darwin: shutdown daemon if worktree root is moved/renamed

Teach the listener thread to shutdown the daemon if the spelling of the
worktree root directory changes.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff Hostetler 2022-05-26 21:47:13 +00:00 committed by Junio C Hamano
parent 6504cfd392
commit de7e0b58ea

View File

@ -106,6 +106,11 @@ 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 &&
@ -215,6 +220,26 @@ 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 or 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",