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119 lines
4.1 KiB
Python
119 lines
4.1 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 config, ui, library
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from beets.util import normpath, syspath
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import os
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# Global variable so that smartplaylist can detect database changes and run
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# only once before beets exits.
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database_changed = False
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def _items_for_query(lib, playlist, album=False):
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"""Get the matching items for a playlist's configured queries.
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`album` indicates whether to process the item-level query or the
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album-level query (if any).
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"""
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key = 'album_query' if album else 'query'
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if key not in playlist:
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return []
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# Parse quer(ies). If it's a list, perform the queries and manually
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# concatenate the results
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query_strings = playlist[key]
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if not isinstance(query_strings, (list, tuple)):
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query_strings = [query_strings]
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model = library.Album if album else library.Item
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results = []
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for q in query_strings:
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query, sort = library.parse_query_string(q, model)
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if album:
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new = lib.albums(query, sort)
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else:
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new = lib.items(query, sort)
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results.extend(new)
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return results
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def update_playlists(lib):
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ui.print_("Updating smart playlists...")
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playlists = config['smartplaylist']['playlists'].get(list)
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playlist_dir = config['smartplaylist']['playlist_dir'].as_filename()
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relative_to = config['smartplaylist']['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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items = []
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items.extend(_items_for_query(lib, playlist, True))
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items.extend(_items_for_query(lib, playlist, False))
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m3us = {}
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basename = playlist['name'].encode('utf8')
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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(basename, True)
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if not (m3u_name 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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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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ui.print_("... Done")
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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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def commands(self):
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def update(lib, opts, args):
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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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@SmartPlaylistPlugin.listen('database_change')
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def handle_change(lib):
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global database_changed
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database_changed = True
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@SmartPlaylistPlugin.listen('cli_exit')
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def update(lib):
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auto = config['smartplaylist']['auto']
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if database_changed and auto:
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update_playlists(lib)
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