mirror of
https://github.com/beetbox/beets.git
synced 2025-12-06 08:39:17 +01:00
62 lines
2.3 KiB
Python
62 lines
2.3 KiB
Python
# This file is part of beets.
|
|
# Copyright 2012, Adrian Sampson.
|
|
#
|
|
# 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.
|
|
|
|
"""Uses user-specified rewriting rules to canonicalize names for path
|
|
formats.
|
|
"""
|
|
import re
|
|
import logging
|
|
|
|
from beets.plugins import BeetsPlugin
|
|
from beets import ui
|
|
from beets import library
|
|
|
|
log = logging.getLogger('beets')
|
|
|
|
def rewriter(fieldname, pattern, replacement):
|
|
def fieldfunc(item):
|
|
value = getattr(item, fieldname)
|
|
if pattern.match(value):
|
|
# Rewrite activated.
|
|
return replacement
|
|
else:
|
|
# Not activated; return original value.
|
|
return value
|
|
return fieldfunc
|
|
|
|
class RewritePlugin(BeetsPlugin):
|
|
template_fields = {}
|
|
|
|
def configure(self, config):
|
|
cls = type(self)
|
|
|
|
for key, value in config.items('rewrite', True):
|
|
try:
|
|
fieldname, pattern = key.split(None, 1)
|
|
except ValueError:
|
|
raise ui.UserError("invalid rewrite specification")
|
|
if fieldname not in library.ITEM_KEYS:
|
|
raise ui.UserError("invalid field name (%s) in rewriter" %
|
|
fieldname)
|
|
log.debug(u'adding template field %s' % key)
|
|
pattern = re.compile(pattern, re.I)
|
|
|
|
# Replace the template field with the new function.
|
|
cls.template_fields[fieldname] = rewriter(fieldname, pattern,
|
|
value)
|
|
if fieldname == 'artist':
|
|
# Special case for the artist field: apply the same rewrite for
|
|
# "albumartist" as well.
|
|
cls.template_fields['albumartist'] = rewriter('albumartist',
|
|
pattern, value)
|