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# livepayload.py
# Live media software payload management.
#
# Copyright (C) 2012 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.
#
# Red Hat Author(s): David Lehman <dlehman@redhat.com>
#
"""
TODO
- error handling!!!
- document all methods
- LiveImagePayload
- register the live image, either via self.data.method or in setup
using storage
"""
import os
import stat
from time import sleep
from threading import Lock
from . import *
from pyanaconda.constants import *
from pyanaconda.flags import flags
from pyanaconda import iutil
import logging
log = logging.getLogger("anaconda")
from pyanaconda.errors import *
from pyanaconda import progress
from blivet.size import Size
import blivet.util
from pyanaconda.threads import threadMgr, AnacondaThread
import gettext
_ = lambda x: gettext.ldgettext("anaconda", x)
class LiveImagePayload(ImagePayload):
""" A LivePayload copies the source image onto the target system. """
def setup(self, storage):
super(LiveImagePayload, self).setup(storage)
# Mount the live device and copy from it instead of the overlay at /
osimg = storage.devicetree.getDeviceByPath(self.data.method.partition)
if not stat.S_ISBLK(os.stat(osimg.path)[stat.ST_MODE]):
exn = PayloadSetupError("%s is not a valid block device" % (self.data.method.partition,))
if errorHandler.cb(exn) == ERROR_RAISE:
raise exn
blivet.util.mount(osimg.path, INSTALL_TREE, fstype="auto", options="ro")
def preInstall(self, packages=None, groups=None):
""" Perform pre-installation tasks. """
super(LiveImagePayload, self).preInstall(packages=packages, groups=groups)
progress.send_message(_("Installing software") + (" %d%%") % (0,))
def progress(self):
"""Monitor the amount of disk space used on the target and source and
update the hub's progress bar.
"""
source = os.statvfs(INSTALL_TREE)
source_size = source.f_frsize * (source.f_blocks - source.f_bfree)
mountpoints = self.storage.mountpoints.copy()
while self.pct < 100:
dest_size = 0
for mnt in mountpoints:
mnt_stat = os.statvfs(ROOT_PATH+mnt)
dest_size += mnt_stat.f_frsize * (mnt_stat.f_blocks - mnt_stat.f_bfree)
with self.pct_lock:
self.pct = int(100 * dest_size / source_size)
progress.send_message(_("Installing software") + (" %d%%") % (min(100,self.pct),))
sleep(0.777)
def install(self):
""" Install the payload. """
self.pct_lock = Lock()
self.pct = 0
threadMgr.add(AnacondaThread(name="AnaLiveProgressThread",
target=self.progress))
cmd = "rsync"
# preserve: permissions, owners, groups, ACL's, xattrs, times,
# symlinks, hardlinks
# go recursively, include devices and special files, don't cross
# file system boundaries
args = ["-pogAXtlHrDx", "--exclude", "/dev/", "--exclude", "/proc/",
"--exclude", "/sys/", INSTALL_TREE+"/", ROOT_PATH]
try:
rc = iutil.execWithRedirect(cmd, args)
except (OSError, RuntimeError) as e:
msg = None
err = str(e)
log.error(err)
else:
err = None
msg = "%s exited with code %d" % (cmd, rc)
log.info(msg)
if err or rc == 12:
exn = PayloadInstallError(err or msg)
if errorHandler.cb(exn) == ERROR_RAISE:
raise exn
# Wait for progress thread to finish
with self.pct_lock:
self.pct = 100
threadMgr.wait("AnaLiveProgressThread")
def postInstall(self):
""" Perform post-installation tasks. """
progress.send_message(_("Performing post-install setup tasks"))
blivet.util.umount(INSTALL_TREE)
super(LiveImagePayload, self).postInstall()
self._recreateInitrds()
@property
def spaceRequired(self):
return Size(bytes=iutil.getDirSize("/")*1024)
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