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# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
import logging
import portage
from portage import os
from _emerge.emergelog import emergelog
from _emerge.CompositeTask import CompositeTask
from _emerge.unmerge import _unmerge_display
class PackageUninstall(CompositeTask):
__slots__ = ("world_atom", "ldpath_mtimes", "opts",
"pkg", "settings")
def _start(self):
vardb = self.pkg.root_config.trees["vartree"].dbapi
dbdir = vardb.getpath(self.pkg.cpv)
if not os.path.exists(dbdir):
# Apparently the package got uninstalled
# already, so we can safely return early.
self.returncode = os.EX_OK
self.wait()
return
self.settings.setcpv(self.pkg)
retval, pkgmap = _unmerge_display(self.pkg.root_config,
self.opts, "unmerge", [self.pkg.cpv], clean_delay=0,
writemsg_level=self._writemsg_level)
if retval != os.EX_OK:
self.returncode = retval
self.wait()
return
self._writemsg_level(">>> Unmerging %s...\n" % (self.pkg.cpv,),
noiselevel=-1)
self._emergelog("=== Unmerging... (%s)" % (self.pkg.cpv,))
cat, pf = portage.catsplit(self.pkg.cpv)
retval = portage.unmerge(cat, pf, settings=self.settings,
vartree=self.pkg.root_config.trees["vartree"],
ldpath_mtimes=self.ldpath_mtimes,
scheduler=self.scheduler)
if retval != os.EX_OK:
self._emergelog(" !!! unmerge FAILURE: %s" % (self.pkg.cpv,))
else:
self._emergelog(" >>> unmerge success: %s" % (self.pkg.cpv,))
self.world_atom(self.pkg)
self.returncode = retval
self.wait()
def _emergelog(self, msg):
emergelog("notitles" not in self.settings.features, msg)
def _writemsg_level(self, msg, level=0, noiselevel=0):
log_path = self.settings.get("PORTAGE_LOG_FILE")
background = self.background
if log_path is None:
if not (background and level < logging.WARNING):
portage.util.writemsg_level(msg,
level=level, noiselevel=noiselevel)
else:
self.scheduler.output(msg, level=level, noiselevel=noiselevel)
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