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https://github.com/beetbox/beets.git
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62cd6e37aa
Code now relies on `format()` for items and albums displaying/logging. `ui.print_()` calls `unicode()` or `str()` on the strings so for most usages calling `ui.print_(obj)` replaces `ui.print_(obj, lib, None)`. Where there is a special format `ui.print_(format(obj, fmt))` is fine, but when `fmt` can be None then one has to call `ui.print_(ui.format_(obj, fmt))` -- which is what `ui.print_obj` now does.
88 lines
3.2 KiB
Python
88 lines
3.2 KiB
Python
# This file is part of beets.
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# Copyright 2015, Philippe Mongeau.
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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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"""Get a random song or album from the library.
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"""
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from __future__ import absolute_import
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from beets.plugins import BeetsPlugin
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from beets.ui import Subcommand, decargs, print_obj
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from beets.util.functemplate import Template
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import random
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from operator import attrgetter
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from itertools import groupby
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def random_item(lib, opts, args):
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query = decargs(args)
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if opts.path:
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fmt = '$path'
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else:
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fmt = opts.format
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template = Template(fmt) if fmt else None
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if opts.album:
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objs = list(lib.albums(query))
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else:
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objs = list(lib.items(query))
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if opts.equal_chance:
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# Group the objects by artist so we can sample from them.
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key = attrgetter('albumartist')
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objs.sort(key=key)
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objs_by_artists = {}
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for artist, v in groupby(objs, key):
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objs_by_artists[artist] = list(v)
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objs = []
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for _ in range(opts.number):
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# Terminate early if we're out of objects to select.
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if not objs_by_artists:
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break
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# Choose an artist and an object for that artist, removing
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# this choice from the pool.
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artist = random.choice(objs_by_artists.keys())
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objs_from_artist = objs_by_artists[artist]
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i = random.randint(0, len(objs_from_artist) - 1)
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objs.append(objs_from_artist.pop(i))
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# Remove the artist if we've used up all of its objects.
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if not objs_from_artist:
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del objs_by_artists[artist]
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else:
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number = min(len(objs), opts.number)
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objs = random.sample(objs, number)
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for item in objs:
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print_obj(item, template)
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random_cmd = Subcommand('random',
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help='chose a random track or album')
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random_cmd.parser.add_option('-a', '--album', action='store_true',
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help='choose an album instead of track')
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random_cmd.parser.add_option('-p', '--path', action='store_true',
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help='print the path of the matched item')
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random_cmd.parser.add_option('-f', '--format', action='store',
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help='print with custom format', default=None)
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random_cmd.parser.add_option('-n', '--number', action='store', type="int",
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help='number of objects to choose', default=1)
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random_cmd.parser.add_option('-e', '--equal-chance', action='store_true',
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help='each artist has the same chance')
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random_cmd.func = random_item
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class Random(BeetsPlugin):
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def commands(self):
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return [random_cmd]
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