beets/beetsplug/random.py
Frederik “Freso” S. Olesen 4b1f0cbf48 Happy 2015. ;)
See 7a410f636b

Command used:

    git grep -l 'Copyright 201'|xargs sed -i -E 's/Copyright 201./Copyright 2015/'`
2015-01-08 21:37:09 +01:00

88 lines
3.2 KiB
Python

# This file is part of beets.
# Copyright 2015, Philippe Mongeau.
#
# 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.
"""Get a random song or album from the library.
"""
from __future__ import absolute_import
from beets.plugins import BeetsPlugin
from beets.ui import Subcommand, decargs, print_obj
from beets.util.functemplate import Template
import random
from operator import attrgetter
from itertools import groupby
def random_item(lib, opts, args):
query = decargs(args)
if opts.path:
fmt = '$path'
else:
fmt = opts.format
template = Template(fmt) if fmt else None
if opts.album:
objs = list(lib.albums(query))
else:
objs = list(lib.items(query))
if opts.equal_chance:
# Group the objects by artist so we can sample from them.
key = attrgetter('albumartist')
objs.sort(key=key)
objs_by_artists = {}
for artist, v in groupby(objs, key):
objs_by_artists[artist] = list(v)
objs = []
for _ in range(opts.number):
# Terminate early if we're out of objects to select.
if not objs_by_artists:
break
# Choose an artist and an object for that artist, removing
# this choice from the pool.
artist = random.choice(objs_by_artists.keys())
objs_from_artist = objs_by_artists[artist]
i = random.randint(0, len(objs_from_artist) - 1)
objs.append(objs_from_artist.pop(i))
# Remove the artist if we've used up all of its objects.
if not objs_from_artist:
del objs_by_artists[artist]
else:
number = min(len(objs), opts.number)
objs = random.sample(objs, number)
for item in objs:
print_obj(item, lib, template)
random_cmd = Subcommand('random',
help='chose a random track or album')
random_cmd.parser.add_option('-a', '--album', action='store_true',
help='choose an album instead of track')
random_cmd.parser.add_option('-p', '--path', action='store_true',
help='print the path of the matched item')
random_cmd.parser.add_option('-f', '--format', action='store',
help='print with custom format', default=None)
random_cmd.parser.add_option('-n', '--number', action='store', type="int",
help='number of objects to choose', default=1)
random_cmd.parser.add_option('-e', '--equal-chance', action='store_true',
help='each artist has the same chance')
random_cmd.func = random_item
class Random(BeetsPlugin):
def commands(self):
return [random_cmd]