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#!/usr/bin/env python
import glob
import re
import os
import shutil
from grs.Constants import CONST
from grs.MountDirectories import MountDirectories
class PivotChroot(Rotator):
""" doc here
more doc
"""
def __init__(self, tmpdir = CONST.TMPDIR, portage_configroot = CONST.PORTAGE_CONFIGROOT, \
logfile = CONST.LOGFILE):
""" doc here
more doc
"""
self.tmpdir = tmpdir
self.portage_configroot = portage_configroot
self.logfile = logfile
def pivot(self, subchroot, md):
""" doc here
more doc
"""
some_mounted, all_mounted = md.are_mounted()
if some_mounted:
md.umount_all()
# Move portage_configroot out of the way to system.0,
# then pivot out the inner chroot to system.
self.rotate(self.portage_configroot)
shutil.move(self.portage_configroot, '%s.0' % self.portage_configroot)
inner_chroot = os.path.join('%s.0' % self.portage_configroot, subchroot)
shutil.move(inner_chroot, os.path.join(self.tmpdir, 'system'))
if all_mounted:
md.mount_all()
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