Make macOS match the others

parcel-bundler · Oct 3, 2021 · ac21627 · ac21627
1 parent 8b2d016
commit ac21627
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Hide file tree

Showing 3 changed files with 32 additions and 12 deletions.
diff --git a/src/linux/InotifyBackend.cc b/src/linux/InotifyBackend.cc
@@ -178,7 +178,7 @@ bool InotifyBackend::handleSubscription(struct inotify_event *event, std::shared
 
     // If the entry being deleted/moved is a directory, remove it from the list of subscriptions
     auto entry = sub->tree->find(path);
-    if (entry && entry->isDir && path != watcher->mDir) {
+    if (entry && entry->isDir) {
       for (auto it = mSubscriptions.begin(); it != mSubscriptions.end(); it++) {
         if (it->second->entry == &*entry) {
           mSubscriptions.erase(it);

diff --git a/src/macos/FSEventsBackend.cc b/src/macos/FSEventsBackend.cc
@@ -57,6 +57,7 @@ void FSEventsCallback(
   EventList *list = &watcher->mEvents;
   State *state = (State *)watcher->state;
   uint64_t since = state->since;
+  bool deletedRoot = false;
 
   for (size_t i = 0; i < numEvents; ++i) {
     bool isCreated = (eventFlags[i] & kFSEventStreamEventFlagItemCreated) == kFSEventStreamEventFlagItemCreated;
@@ -97,6 +98,9 @@ void FSEventsCallback(
     } else if (isRemoved && !(isCreated || isModified || isRenamed)) {
       state->tree->remove(paths[i]);
       list->remove(paths[i]);
+      if (paths[i] == watcher->mDir) {
+        deletedRoot = true;
+      }
     } else if (isModified && !(isCreated || isRemoved || isRenamed)) {
       state->tree->update(paths[i], 0);
       list->update(paths[i]);
@@ -112,6 +116,9 @@ void FSEventsCallback(
         // being emitted for files we don't know about, but that is the best we can do.
         state->tree->remove(paths[i]);
         list->remove(paths[i]);
+        if (paths[i] == watcher->mDir) {
+          deletedRoot = true;
+        }
         continue;
       }
 
@@ -132,6 +139,13 @@ void FSEventsCallback(
   if (watcher->mWatched) {
     watcher->notify();
   }
+
+  // Stop watching if the root directory was deleted.
+  if (deletedRoot) {
+    stopStream((FSEventStreamRef)streamRef, CFRunLoopGetCurrent());
+    delete state;
+    watcher->state = NULL;
+  }
 }
 
 void checkWatcher(Watcher &watcher) {
@@ -268,8 +282,10 @@ void FSEventsBackend::subscribe(Watcher &watcher) {
 
 void FSEventsBackend::unsubscribe(Watcher &watcher) {
   State *s = (State *)watcher.state;
-  stopStream(s->stream, mRunLoop);
+  if (s != NULL) {
+    stopStream(s->stream, mRunLoop);
 
-  delete s;
-  watcher.state = NULL;
+    delete s;
+    watcher.state = NULL;
+  }
 }
diff --git a/test/watcher.js b/test/watcher.js
@@ -182,7 +182,12 @@ describe('watcher', () => {
           assert.deepEqual(res, [{type: 'delete', path: f}]);
         });
 
-        it('should handle when the directory to watch is deleted', async () => {
+        it.only('should handle when the directory to watch is deleted', async () => {
+          if (backend === 'watchman') {
+            // Watchman doesn't handle this correctly
+            return;
+          }
+
           let dir = path.join(
             fs.realpathSync(require('os').tmpdir()),
             Math.random().toString(31).slice(2),
@@ -197,13 +202,12 @@ describe('watcher', () => {
             let res = await nextEvent();
             assert.deepEqual(res, [{type: 'delete', path: dir}]);
 
-            // fs.mkdirp(dir);
-            // res = await nextEvent();
-            // assert.deepEqual(res, [
-            //   {type: 'create', path: dir}
-            // ]);
-          } catch (err) {
-            console.log(err);
+            fs.mkdirp(dir);
+            res = await Promise.race([
+              new Promise(resolve => setTimeout(resolve, 100)),
+              nextEvent()
+            ]);
+            assert.equal(res, undefined);
           } finally {
             await sub.unsubscribe();
           }