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"""This is the Bcfg2 tool for the Gentoo Portage system."""
import re
import Bcfg2.Client.Tools
from Bcfg2.Bcfg2Py3k import ConfigParser
class Portage(Bcfg2.Client.Tools.PkgTool):
"""The Gentoo toolset implements package and service operations and
inherits the rest from Toolset.Toolset."""
name = 'Portage'
__execs__ = ['/usr/bin/emerge', '/usr/bin/equery']
__handles__ = [('Package', 'ebuild')]
__req__ = {'Package': ['name', 'version']}
pkgtype = 'ebuild'
# requires a working PORTAGE_BINHOST in make.conf
_binpkgtool = ('emerge --getbinpkgonly %s', ('=%s-%s', \
['name', 'version']))
pkgtool = ('emerge %s', ('=%s-%s', ['name', 'version']))
def __init__(self, logger, cfg, setup):
self._initialised = False
Bcfg2.Client.Tools.PkgTool.__init__(self, logger, cfg, setup)
self._initialised = True
self.__important__ = self.__important__ + ['/etc/make.conf']
self._pkg_pattern = re.compile('(.*)-(\d.*)')
self._ebuild_pattern = re.compile('(ebuild|binary)')
self.cfg = cfg
self.installed = {}
self._binpkgonly = True
# Used to get options from configuration file
parser = ConfigParser.ConfigParser()
parser.read(self.setup.get('setup'))
for opt in ['binpkgonly']:
if parser.has_option(self.name, opt):
setattr(self, ('_%s' % opt),
self._StrToBoolIfBool(parser.get(self.name, opt)))
if self._binpkgonly:
self.pkgtool = self._binpkgtool
self.RefreshPackages()
def _StrToBoolIfBool(self, s):
"""Returns a boolean if the string specifies a boolean value.
Returns a string otherwise"""
if s.lower() in ('true', 'yes', 't', 'y', '1'):
return True
elif s.lower() in ('false', 'no', 'f', 'n', '0'):
return False
else:
return s
def RefreshPackages(self):
"""Refresh memory hashes of packages."""
if not self._initialised:
return
self.logger.info('Getting list of installed packages')
cache = self.cmd.run("equery -q list '*'")[1]
self.installed = {}
for pkg in cache:
if self._pkg_pattern.match(pkg):
name = self._pkg_pattern.match(pkg).group(1)
version = self._pkg_pattern.match(pkg).group(2)
self.installed[name] = version
else:
self.logger.info("Failed to parse pkg name %s" % pkg)
def VerifyPackage(self, entry, modlist):
"""Verify package for entry."""
if not 'version' in entry.attrib:
self.logger.info("Cannot verify unversioned package %s" %
(entry.get('name')))
return False
if not (entry.get('name') in self.installed):
# Can't verify package that isn't installed
entry.set('current_exists', 'false')
return False
# get the installed version
version = self.installed[entry.get('name')]
entry.set('current_version', version)
if not self.setup['quick']:
if ('verify' not in entry.attrib) or \
self._StrToBoolIfBool(entry.get('verify')):
# Check the package if:
# - Not running in quick mode
# - No verify option is specified in the literal configuration
# OR
# - Verify option is specified and is true
self.logger.debug('Running equery check on %s' %
entry.get('name'))
output = self.cmd.run("/usr/bin/equery -N check '=%s-%s' "
"2>&1 | grep '!!!' | awk '{print $2}'"
% ((entry.get('name'), version)))[1]
if [filename for filename in output \
if filename not in modlist]:
return False
# By now the package must be in one of the following states:
# - Not require checking
# - Have no files modified at all
# - Have modified files in the modlist only
if self.installed[entry.get('name')] == version:
# Specified package version is installed
# Specified package version may be any in literal configuration
return True
# Something got skipped. Indicates a bug
return False
def RemovePackages(self, packages):
"""Deal with extra configuration detected."""
pkgnames = " ".join([pkg.get('name') for pkg in packages])
if len(packages) > 0:
self.logger.info('Removing packages:')
self.logger.info(pkgnames)
self.cmd.run("emerge --unmerge --quiet %s" %
" ".join(pkgnames.split(' ')))
self.RefreshPackages()
self.extra = self.FindExtraPackages()
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