Add retag plugin

beetsplug/retag.py

@@ -0,0 +1,19 @@
+from beets.plugins import BeetsPlugin
+
+class RetagPlugin(BeetsPlugin):
+
+    def __init__(self):
+        super(RetagPlugin, self).__init__()
+        self.config.add({
+            'clear': [ 'mb_trackid', 'mb_albumid', 'acoustid_id', 'acoustid_fingerprint' ]
+        })
+        self.register_listener('import_task_start', self.clear_tags)
+
+    @property
+    def cleared_props(self):
+        return self.config['clear'].as_str_seq()
+
+    def clear_tags(self, session, task):
+        for item in task.items:
+            for prop in self.cleared_props:
+                item[prop] = None