Properly handle directories moved out of the watched dir.

mdb/__init__.py

@@ -61,6 +61,15 @@ def updated_file(path):
     def remove(self, path):
         del self.db[_id(path)]
 
+    def remove_docs(self, songs):
+        for song in songs:
+            song["_deleted"] = True
+        self.db.update(songs)
+
+    def docs_beneath(self, path):
+        path = path.split(os.path.sep)
+        return [row.value for row in self.db.view('_view/tree/by-path', startkey=path, endkey=path + [{}])]
+
     def _song_for(self, path):
         try: return MusicFile(path)
         except IOError: return None

mdb/watch.py

@@ -33,7 +33,9 @@ def process_IN_MOVED_FROM(self, event):
         if not event.is_dir:
             self.process_IN_DELETE(self, event)
 
-        print "Don't know how to deal with a moved directory yet."
+        path = os.path.join(event.path, event.name)
+        print "Removing %s..." % path
+        self.db.remove_docs(self.db.docs_beneath(path))
 
     def process_default(self, event):
         if event.is_dir: return