Update beets to 1.3.18:

Dependencies:
* PyYAML 3.11
* Unidecode 0.4.19
* beets 1.3.18
* colorama 0.3.7
* enum34 1.1.6
* jellyfish 0.5.4
* munkres 1.0.7
* musicbrainzngs 0.6
* mutagen 1.32

libs/beetsplug/metasync/amarok.py

@@ -0,0 +1,110 @@
+# -*- coding: utf-8 -*-
+# This file is part of beets.
+# Copyright 2016, Heinz Wiesinger.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+
+"""Synchronize information from amarok's library via dbus
+"""
+
+from __future__ import division, absolute_import, print_function
+
+from os.path import basename
+from datetime import datetime
+from time import mktime
+from xml.sax.saxutils import escape
+
+from beets.util import displayable_path
+from beets.dbcore import types
+from beets.library import DateType
+from beetsplug.metasync import MetaSource
+
+
+def import_dbus():
+    try:
+        return __import__('dbus')
+    except ImportError:
+        return None
+
+dbus = import_dbus()
+
+
+class Amarok(MetaSource):
+
+    item_types = {
+        'amarok_rating':      types.INTEGER,
+        'amarok_score':       types.FLOAT,
+        'amarok_uid':         types.STRING,
+        'amarok_playcount':   types.INTEGER,
+        'amarok_firstplayed': DateType(),
+        'amarok_lastplayed':  DateType(),
+    }
+
+    queryXML = u'<query version="1.0"> \
+                    <filters> \
+                        <and><include field="filename" value="%s" /></and> \
+                    </filters> \
+                </query>'
+
+    def __init__(self, config, log):
+        super(Amarok, self).__init__(config, log)
+
+        if not dbus:
+            raise ImportError('failed to import dbus')
+
+        self.collection = \
+            dbus.SessionBus().get_object('org.kde.amarok', '/Collection')
+
+    def sync_from_source(self, item):
+        path = displayable_path(item.path)
+
+        # amarok unfortunately doesn't allow searching for the full path, only
+        # for the patch relative to the mount point. But the full path is part
+        # of the result set. So query for the filename and then try to match
+        # the correct item from the results we get back
+        results = self.collection.Query(self.queryXML % escape(basename(path)))
+        for result in results:
+            if result['xesam:url'] != path:
+                continue
+
+            item.amarok_rating = result['xesam:userRating']
+            item.amarok_score = result['xesam:autoRating']
+            item.amarok_playcount = result['xesam:useCount']
+            item.amarok_uid = \
+                result['xesam:id'].replace('amarok-sqltrackuid://', '')
+
+            if result['xesam:firstUsed'][0][0] != 0:
+                # These dates are stored as timestamps in amarok's db, but
+                # exposed over dbus as fixed integers in the current timezone.
+                first_played = datetime(
+                    result['xesam:firstUsed'][0][0],
+                    result['xesam:firstUsed'][0][1],
+                    result['xesam:firstUsed'][0][2],
+                    result['xesam:firstUsed'][1][0],
+                    result['xesam:firstUsed'][1][1],
+                    result['xesam:firstUsed'][1][2]
+                )
+
+                if result['xesam:lastUsed'][0][0] != 0:
+                    last_played = datetime(
+                        result['xesam:lastUsed'][0][0],
+                        result['xesam:lastUsed'][0][1],
+                        result['xesam:lastUsed'][0][2],
+                        result['xesam:lastUsed'][1][0],
+                        result['xesam:lastUsed'][1][1],
+                        result['xesam:lastUsed'][1][2]
+                    )
+                else:
+                    last_played = first_played
+
+                item.amarok_firstplayed = mktime(first_played.timetuple())
+                item.amarok_lastplayed = mktime(last_played.timetuple())