fsmonitor--daemon: on macOS support symlink

Resolves a problem where symbolic links were not showing up in diff when
created or modified.

kFSEventStreamEventFlagItemIsSymlink is also treated as a file update.
This is because kFSEventStreamEventFlagItemIsFile is not included in
FSEvents when creating or deleting symbolic links. For example:

$ ln -snf t test
  fsevent: '/path/to/dir/test', flags=0x40100 ItemCreated|ItemIsSymlink|
$ ln -snf ci test
  fsevent: '/path/to/dir/test', flags=0x40200 ItemIsSymlink|ItemRemoved|
  fsevent: '/path/to/dir/test', flags=0x40100 ItemCreated|ItemIsSymlink|

Signed-off-by: srz_zumix <zumix.cpp@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>

diff --git a/compat/fsmonitor/fsm-listen-darwin.c b/compat/fsmonitor/fsm-listen-darwin.c
index daeee4e465c1246df1ca254403b81d8c0d2220ac..cc9af1e3cb3b3afca7d519147c4ae252b9f5832a 100644 (file)
--- a/compat/fsmonitor/fsm-listen-darwin.c
+++ b/compat/fsmonitor/fsm-listen-darwin.c
@@ -336,7 +336,7 @@ static void fsevent_callback(ConstFSEventStreamRef streamRef,
                         * know how much to invalidate/refresh.
                         */
 
-                       if (event_flags[k] & kFSEventStreamEventFlagItemIsFile) {
+                       if (event_flags[k] & (kFSEventStreamEventFlagItemIsFile | kFSEventStreamEventFlagItemIsSymlink)) {
                                const char *rel = path_k +
                                        state->path_worktree_watch.len + 1;