146 lines
4.7 KiB
Python
146 lines
4.7 KiB
Python
# -*- Mode: Python; test-case-name: morituri.test.test_common_config -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# Morituri - for those about to RIP
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# Copyright (C) 2009 Thomas Vander Stichele
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# This file is part of morituri.
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#
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# morituri is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# morituri is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with morituri. If not, see <http://www.gnu.org/licenses/>.
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import os.path
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import shutil
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import urllib
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import codecs
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import tempfile
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import ConfigParser
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from morituri.common import directory, log
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class Config(log.Loggable):
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def __init__(self, path=None):
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if not path:
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path = self.getDefaultPath()
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self._path = path
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self._parser = ConfigParser.SafeConfigParser()
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self.open()
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def getDefaultPath(self):
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return directory.Directory().getConfig()
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def open(self):
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# Open the file with the correct encoding
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if os.path.exists(self._path):
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with codecs.open(self._path, 'r', encoding='utf-8') as f:
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self._parser.readfp(f)
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self.info('Loaded %d sections from config file' %
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len(self._parser.sections()))
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def setReadOffset(self, vendor, model, release, offset):
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"""
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Set a read offset for the given drive.
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Strips the given strings of leading and trailing whitespace.
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"""
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section = self._findOrCreateDriveSection(vendor, model, release)
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self._parser.set(section, 'read_offset', str(offset))
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self.write()
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def getReadOffset(self, vendor, model, release):
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"""
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Get a read offset for the given drive.
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"""
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section = self._findDriveSection(vendor, model, release)
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try:
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return int(self._parser.get(section, 'read_offset'))
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except ConfigParser.NoOptionError:
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raise KeyError("Could not find read_offset for %s/%s/%s" % (
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vendor, model, release))
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def setDefeatsCache(self, vendor, model, release, defeat):
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"""
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Set whether the drive defeats the cache.
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Strips the given strings of leading and trailing whitespace.
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"""
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section = self._findOrCreateDriveSection(vendor, model, release)
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self._parser.set(section, 'defeats_cache', str(defeat))
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self.write()
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def getDefeatsCache(self, vendor, model, release):
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section = self._findDriveSection(vendor, model, release)
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try:
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return bool(self._parser.get(section, 'defeats_cache'))
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except ConfigParser.NoOptionError:
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raise KeyError("Could not find defeats_cache for %s/%s/%s" % (
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vendor, model, release))
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def write(self):
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fd, path = tempfile.mkstemp(suffix=u'.moriturirc')
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handle = os.fdopen(fd, 'w')
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self._parser.write(handle)
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handle.close()
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shutil.move(path, self._path)
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def _findDriveSection(self, vendor, model, release):
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for name in self._parser.sections():
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if not name.startswith('drive:'):
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continue
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self.debug('Looking at section %r' % name)
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conf = {}
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for key in ['vendor', 'model', 'release']:
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locals()[key] = locals()[key].strip()
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conf[key] = self._parser.get(name, key)
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self.debug("%s: '%s' versus '%s'" % (
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key, locals()[key], conf[key]))
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if vendor.strip() != conf['vendor']:
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continue
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if model.strip() != conf['model']:
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continue
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if release.strip() != conf['release']:
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continue
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return name
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raise KeyError("Could not find configuration section for %s/%s/%s" % (
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vendor, model, release))
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def _findOrCreateDriveSection(self, vendor, model, release):
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try:
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section = self._findDriveSection(vendor, model, release)
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except KeyError:
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section = 'drive:' + urllib.quote('%s:%s:%s' % (
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vendor, model, release))
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self._parser.add_section(section)
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__pychecker__ = 'no-local'
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for key in ['vendor', 'model', 'release']:
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self._parser.set(section, key, locals()[key].strip())
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self.write()
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return self._findDriveSection(vendor, model, release)
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