Add a plugin to update a Kodi music library

I created one for an older version before, but it didn't work since the change to Python 3. So I created a new one that works.

beetsplug/kodiupdate.py

@@ -0,0 +1,66 @@
+# -*- coding: utf-8 -*-
+
+"""Updates a Kodi library whenever the beets library is changed. This is based on the Plex Update plugin.
+
+Put something like the following in your config.yaml to configure:
+    kodi:
+        host: localhost
+        port: 8080
+        user: user
+        pwd: secret
+"""
+from __future__ import division, absolute_import, print_function
+
+import requests
+import json
+from requests.auth import HTTPBasicAuth
+from beets import config
+from beets.plugins import BeetsPlugin
+
+
+def update_kodi(host, port, user, password):
+    """Sends request to the Kodi api to start a library refresh.
+    """
+    url = "http://{0}:{1}/jsonrpc/".format(host, port)
+
+    # The kodi jsonrpc documentation states that Content-Type: application/json is mandatory
+    headers = {'Content-Type': 'application/json'}
+    # Create the payload. Id seems to be mandatory.
+    payload = {'jsonrpc': '2.0', 'method':'AudioLibrary.Scan', 'id':1}
+    r = requests.post(url, auth=HTTPBasicAuth(user, password), json=payload, headers=headers)
+    return r
+
+class KodiUpdate(BeetsPlugin):
+    def __init__(self):
+        super(KodiUpdate, self).__init__()
+
+        # Adding defaults.
+        config['kodi'].add({
+            u'host': u'localhost',
+            u'port': 8080,
+            u'user': u'kodi',
+            u'pwd': u'kodi'})
+
+        self.register_listener('database_change', self.listen_for_db_change)
+
+    def listen_for_db_change(self, lib, model):
+        """Listens for beets db change and register the update for the end"""
+        self.register_listener('cli_exit', self.update)
+
+    def update(self, lib):
+        """When the client exists try to send refresh request to Kodi server.
+        """
+        self._log.info(u'Updating Kodi library...')
+
+        # Try to send update request.
+        try:
+            update_kodi(
+                config['kodi']['host'].get(),
+                config['kodi']['port'].get(),
+                config['kodi']['user'].get(),
+                config['kodi']['pwd'].get())
+            self._log.info(u'... started.')
+
+        except requests.exceptions.RequestException:
+            self._log.warning(u'Update failed.')
+