beets/beetsplug/the.py
Adrian Sampson 6d68a4855e per-plugin configuration defaults in __init__()
This uses the new BeetsPlugin.config convenience view heavily. Things are
slowly getting less verbose.
2012-12-18 22:35:44 -08:00

115 lines
3.6 KiB
Python

# This file is part of beets.
# Copyright 2012, Blemjhoo Tezoulbr <baobab@heresiarch.info>.
#
# 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.
"""Moves patterns in path formats (suitable for moving articles)."""
import re
import logging
from beets.plugins import BeetsPlugin
__author__ = 'baobab@heresiarch.info'
__version__ = '1.1'
PATTERN_THE = u'^[the]{3}\s'
PATTERN_A = u'^[a][n]?\s'
FORMAT = u'{0}, {1}'
class ThePlugin(BeetsPlugin):
_instance = None
_log = logging.getLogger('beets')
the = True
a = True
format = u''
strip = False
patterns = []
def __new__(cls, *args, **kwargs):
if cls._instance is None:
cls._instance = super(ThePlugin,
cls).__new__(cls, *args, **kwargs)
return cls._instance
def __init__(self):
super(ThePlugin, self).__init__()
self.config.add({
'the': True,
'a': True,
'format': u'{0}, {1}',
'strip': False,
'patterns': [],
})
self.patterns = self.config['patterns'].get(list)
for p in self.patterns:
if p:
try:
re.compile(p)
except re.error:
self._log.error(u'[the] invalid pattern: {0}'.format(p))
else:
if not (p.startswith('^') or p.endswith('$')):
self._log.warn(u'[the] warning: \"{0}\" will not '
'match string start/end'.format(p))
if self.config['a']:
self.patterns = [PATTERN_A] + self.patterns
if self.config['the']:
self.patterns = [PATTERN_THE] + self.patterns
if not self.patterns:
self._log.warn(u'[the] no patterns defined!')
def unthe(self, text, pattern):
"""Moves pattern in the path format string or strips it
text -- text to handle
pattern -- regexp pattern (case ignore is already on)
strip -- if True, pattern will be removed
"""
if text:
r = re.compile(pattern, flags=re.IGNORECASE)
try:
t = r.findall(text)[0]
except IndexError:
return text
else:
r = re.sub(r, '', text).strip()
if self.config['strip']:
return r
else:
fmt = self.config['format'].get(unicode)
return fmt.format(r, t.strip()).strip()
else:
return u''
def the_template_func(self, text):
if not self.patterns:
return text
if text:
for p in self.patterns:
r = self.unthe(text, p)
if r != text:
break
self._log.debug(u'[the] \"{0}\" -> \"{1}\"'.format(text, r))
return r
else:
return u''
@ThePlugin.template_func('the')
def func_the(text):
"""Provides beets template function %the"""
return ThePlugin().the_template_func(text)