Fix return dropped event 'delete' and update code style

metawatch.js

@@ -58,37 +58,39 @@ class DirectoryWatcher extends EventEmitter {
     this.emit('after', queue);
   }
 
-  watchDirectory(dirPath) {
-    if (this.watchers.has(dirPath)) return;
-    const watcher = fs.watch(dirPath);
-    watcher.on('error', () => void this.unwatch(dirPath));
-    watcher.on('change', (_, fileName) => {
-      const target = dirPath.endsWith(path.sep + fileName);
-      const filePath = target ? dirPath : path.join(dirPath, fileName);
+  watchDirectory(targetPath) {
+    if (this.watchers.has(targetPath)) return;
+    const watcher = fs.watch(targetPath);
+    watcher.on('error', () => void this.unwatch(targetPath));
+    watcher.on('change', (...args) => {
+      const fileName = args.pop();
+      const target = targetPath.endsWith(path.sep + fileName);
+      const filePath = target ? targetPath : path.join(targetPath, fileName);
       if (this.isExcludedFile(filePath)) return;
       this.post('*', filePath);
       fs.stat(filePath, (err, stats) => {
         if (err) {
           const keys = [...this.watchers.keys()];
+          this.unwatch(filePath);
+          this.post('delete', filePath);
           const event = keys.includes(filePath) ? 'unlinkDir' : 'unlink';
-          this.post(event, filePath);
-          return void this.unwatch(filePath);
+          return void this.post(event, filePath);
         }
         if (stats.isDirectory()) this.watch(filePath);
         this.post('change', filePath);
       });
     });
-    this.watchers.set(dirPath, watcher);
+    this.watchers.set(targetPath, watcher);
   }
 
-  unwatch(filePath) {
-    const watcher = this.watchers.get(filePath);
+  unwatch(path) {
+    const watcher = this.watchers.get(path);
     if (!watcher) return;
     watcher.close();
-    this.watchers.delete(filePath);
+    this.watchers.delete(path);
   }
 
-  watch(targetPath = process.cwd()) {
+  watch(targetPath) {
     if (this.isExcludedDir(targetPath)) return this;
     fs.readdir(targetPath, { withFileTypes: true }, (err, files) => {
       if (err) return this;
@@ -102,11 +104,6 @@ class DirectoryWatcher extends EventEmitter {
     });
     return this;
   }
-
-  stop(filePath) {
-    if (filePath) return void this.unwatch(filePath);
-    for (const [filePath] of this.watchers) this.unwatch(filePath);
-  }
 }
 
 module.exports = { DirectoryWatcher };