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# read.py
# Reading configuration from files.
#
# Copyright (C) 2014-2017 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details. You should have received a copy of the
# GNU General Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
from __future__ import absolute_import
from __future__ import unicode_literals
from dnf.i18n import _, ucd
import dnf.conf
import libdnf.conf
import dnf.exceptions
import dnf.repo
import glob
import logging
logger = logging.getLogger('dnf')
class RepoReader(object):
def __init__(self, conf, opts):
self.conf = conf
self.opts = opts
def __iter__(self):
# get the repos from the main yum.conf file
for r in self._get_repos(self.conf.config_file_path):
yield r
# read .repo files from directories specified by conf.reposdir
for repofn in (repofn for reposdir in self.conf.reposdir
for repofn in sorted(glob.glob('%s/*.repo' % reposdir))):
try:
for r in self._get_repos(repofn):
yield r
except dnf.exceptions.ConfigError:
logger.warning(_("Warning: failed loading '%s', skipping."),
repofn)
def _build_repo(self, parser, id_, repofn):
"""Build a repository using the parsed data."""
repo = dnf.repo.Repo(id_, self.conf)
try:
repo._populate(parser, id_, repofn, dnf.conf.PRIO_REPOCONFIG)
except ValueError as e:
msg = _("Repository '%s': Error parsing config: %s" % (id_, e))
raise dnf.exceptions.ConfigError(msg)
# Ensure that the repo name is set
repo_name_object = repo._get_option('name')
if repo_name_object._get_priority() == dnf.conf.PRIO_DEFAULT:
msg = _("Repository '%s' is missing name in configuration, using id.")
logger.warning(msg, id_)
repo.name = ucd(repo.name)
repo._substitutions.update(self.conf.substitutions)
repo.cfg = parser
return repo
def _get_repos(self, repofn):
"""Parse and yield all repositories from a config file."""
substs = self.conf.substitutions
parser = libdnf.conf.ConfigParser()
parser.setSubstitutions(substs)
try:
parser.read(repofn)
except RuntimeError as e:
raise dnf.exceptions.ConfigError(_('Parsing file "%s" failed: %s') % (repofn, e))
except IOError as e:
logger.warning(e)
# Check sections in the .repo file that was just slurped up
for section in parser.getData():
if section == 'main':
continue
# Check the repo.id against the valid chars
invalid = dnf.repo.repo_id_invalid(section)
if invalid is not None:
logger.warning(_("Bad id for repo: %s, byte = %s %d"), section,
section[invalid], invalid)
continue
try:
thisrepo = self._build_repo(parser, ucd(section), repofn)
except (dnf.exceptions.RepoError, dnf.exceptions.ConfigError) as e:
logger.warning(e)
continue
else:
thisrepo.repofile = repofn
thisrepo._configure_from_options(self.opts)
yield thisrepo
class ModuleReader(object):
def __init__(self, module_dir, conf_suffix="module"):
self.conf_dir = module_dir
self.conf_suffix = conf_suffix
def __iter__(self):
for module_path in sorted(glob.glob('{}/*.{}'.format(self.conf_dir, self.conf_suffix))):
try:
for module_conf in self._get_module_configs(module_path):
yield module_conf
except dnf.exceptions.ConfigError:
# TODO: handle properly; broken module conf must be considered as an error
raise
# logger.warning(_("Warning: failed loading '%s', skipping."), module_path)
def _build_module(self, parser, id_, module_path):
"""Build a module using the parsed data."""
module = dnf.conf.ModuleConf(section=id_, parser=parser)
try:
for name in parser.getData()[id_]:
value = parser.getSubstitutedValue(id_, name)
if not value or value == 'None':
value = None
opt = getattr(module, name, None)
if opt: # and not opt._is_runtimeonly():
try:
if value is not None:
opt._set(value)
except dnf.exceptions.ConfigError as e:
logger.debug(_('Unknown configuration value: '
'%s=%s in %s; %s'), ucd(name),
ucd(value), ucd(module_path), e.raw_error)
else:
if name == 'arch' and hasattr(self, name):
setattr(self, name, value)
else:
logger.debug(
_('Unknown configuration option: %s = %s in %s'),
ucd(name), ucd(value), ucd(module_path))
except ValueError as e:
msg = _("Module '%s': Error parsing config: %s" % (id_, e))
raise dnf.exceptions.ConfigError(msg)
# TODO: unset module.name?
module._cfg = parser
if not module.state._get() and module.enabled._get():
module.state._set("enabled")
return module
def _get_module_configs(self, module_path):
"""Parse and yield all module configs from a config file."""
parser = libdnf.conf.ConfigParser()
try:
parser.read(module_path)
except (libdnf.conf.ConfigParser.ParsingError, libdnf.conf.ConfigParser.CantOpenFile) as e:
msg = str(e)
raise dnf.exceptions.ConfigError(msg)
# Check sections in the .module file that was just slurped up
for section in parser.getData().keys():
if section == 'main':
continue
try:
module = self._build_module(parser, section, module_path)
except (dnf.exceptions.RepoError, dnf.exceptions.ConfigError) as e:
logger.warning(e)
continue
else:
module.config_file = module_path
yield module