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29de697a8d
Playlist names containing path separators would cause beets to crash if the parent directories for the playlist didn't already exist.
105 lines
4 KiB
Python
105 lines
4 KiB
Python
# This file is part of beets.
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# Copyright 2015, Dang Mai <contact@dangmai.net>.
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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"""Generates smart playlists based on beets queries.
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"""
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from __future__ import print_function
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from beets.plugins import BeetsPlugin
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from beets import ui
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from beets.util import mkdirall, normpath, syspath
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import os
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def _items_for_query(lib, queries, album):
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"""Get the matching items for a list of queries.
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`queries` can either be a single string or a list of strings. In the
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latter case, the results from each query are concatenated. `album`
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indicates whether the queries are item-level or album-level.
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"""
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if isinstance(queries, basestring):
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queries = [queries]
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if album:
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for query in queries:
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for album in lib.albums(query):
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for item in album.items():
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yield item
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else:
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for query in queries:
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for item in lib.items(query):
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yield item
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class SmartPlaylistPlugin(BeetsPlugin):
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def __init__(self):
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super(SmartPlaylistPlugin, self).__init__()
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self.config.add({
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'relative_to': None,
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'playlist_dir': u'.',
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'auto': True,
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'playlists': []
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})
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if self.config['auto']:
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self.register_listener('database_change', self.db_change)
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def commands(self):
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def update(lib, opts, args):
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self.update_playlists(lib)
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spl_update = ui.Subcommand('splupdate',
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help='update the smart playlists')
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spl_update.func = update
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return [spl_update]
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def db_change(self, lib):
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self.register_listener('cli_exit', self.update_playlists)
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def update_playlists(self, lib):
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self._log.info("Updating smart playlists...")
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playlists = self.config['playlists'].get(list)
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playlist_dir = self.config['playlist_dir'].as_filename()
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relative_to = self.config['relative_to'].get()
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if relative_to:
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relative_to = normpath(relative_to)
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for playlist in playlists:
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self._log.debug(u"Creating playlist {0[name]}", playlist)
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items = []
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if 'album_query' in playlist:
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items.extend(_items_for_query(lib, playlist['album_query'],
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True))
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if 'query' in playlist:
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items.extend(_items_for_query(lib, playlist['query'], False))
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m3us = {}
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# As we allow tags in the m3u names, we'll need to iterate through
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# the items and generate the correct m3u file names.
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for item in items:
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m3u_name = item.evaluate_template(playlist['name'], True)
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if m3u_name not in m3us:
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m3us[m3u_name] = []
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item_path = item.path
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if relative_to:
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item_path = os.path.relpath(item.path, relative_to)
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if item_path not in m3us[m3u_name]:
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m3us[m3u_name].append(item_path)
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# Now iterate through the m3us that we need to generate
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for m3u in m3us:
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m3u_path = normpath(os.path.join(playlist_dir, m3u))
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mkdirall(m3u_path)
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with open(syspath(m3u_path), 'w') as f:
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for path in m3us[m3u]:
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f.write(path + '\n')
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self._log.info("{0} playlists updated", len(playlists))
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