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#!/usr/bin/python
# Copyright (C) 2012-2013 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty 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.
'''A Morph deployment write extension for raw disk images.'''
import os
import time
import tempfile
import morphlib.writeexts
class RawDiskWriteExtension(morphlib.writeexts.WriteExtension):
'''Create a raw disk image during Morph's deployment.
The location command line argument is the pathname of the disk image
to be created.
'''
def process_args(self, args):
if len(args) != 2:
raise cliapp.AppException('Wrong number of command line args')
temp_root, location = args
self.status(
msg='Temporary system root: %(temp_root)s',
temp_root=temp_root)
self.status(
msg='Disk image to create: %(location)s',
location=location)
size = self.get_disk_size()
self.status(msg='Disk size is %(size)d bytes', size=size)
self.create_raw_disk_image(location, size)
self.mkfs_btrfs(location)
mp = self.mount(location)
try:
self.create_factory(mp, temp_root)
self.create_fstab(mp)
self.install_extlinux(mp)
except BaseException, e:
self.status(msg='EEK')
self.unmount(mp)
raise
else:
self.unmount(mp)
self.status(msg='Disk image has been created')
RawDiskWriteExtension().run()
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