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#!/usr/bin/python -tt
#
# Copyright (c) 2011 Intel, Inc.
#
# 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., 59
# Temple Place - Suite 330, Boston, MA 02111-1307, USA.
import os
import shutil
import re
import tempfile
from mic import chroot, msger
from mic.utils import misc, fs_related, errors, runner, cmdln
from mic.conf import configmgr
from mic.plugin import pluginmgr
from mic.utils.partitionedfs import PartitionedMount
import mic.imager.raw as raw
from mic.pluginbase import ImagerPlugin
class RawPlugin(ImagerPlugin):
name = 'raw'
@classmethod
@cmdln.option("--compress-disk-image", dest="compress_image", type='choice',
choices=("gz", "bz2"), default=None,
help="Same with --compress-image")
@cmdln.option("--compress-image", dest="compress_image", type='choice',
choices=("gz", "bz2"), default = None,
help="Compress all raw images before package")
@cmdln.option("--generate-bmap", action="store_true", default = None,
help="also generate the block map file")
@cmdln.option("--fstab-entry", dest="fstab_entry", type='choice',
choices=("name", "uuid"), default="uuid",
help="Set fstab entry, 'name' means using device names, "
"'uuid' means using filesystem uuid")
def do_create(self, subcmd, opts, *args):
"""${cmd_name}: create raw image
Usage:
${name} ${cmd_name} <ksfile> [OPTS]
${cmd_option_list}
"""
if len(args) != 1:
raise errors.Usage("Extra arguments given")
creatoropts = configmgr.create
ksconf = args[0]
if creatoropts['runtime'] == "bootstrap":
configmgr._ksconf = ksconf
rt_util.bootstrap_mic()
recording_pkgs = []
if len(creatoropts['record_pkgs']) > 0:
recording_pkgs = creatoropts['record_pkgs']
if creatoropts['release'] is not None:
if 'name' not in recording_pkgs:
recording_pkgs.append('name')
if 'vcs' not in recording_pkgs:
recording_pkgs.append('vcs')
configmgr._ksconf = ksconf
# Called After setting the configmgr._ksconf as the creatoropts['name'] is reset there.
if creatoropts['release'] is not None:
creatoropts['outdir'] = "%s/%s/images/%s/" % (creatoropts['outdir'], creatoropts['release'], creatoropts['name'])
# try to find the pkgmgr
pkgmgr = None
backends = pluginmgr.get_plugins('backend')
if 'auto' == creatoropts['pkgmgr']:
for key in configmgr.prefer_backends:
if key in backends:
pkgmgr = backends[key]
break
else:
for key in backends.keys():
if key == creatoropts['pkgmgr']:
pkgmgr = backends[key]
break
if not pkgmgr:
raise errors.CreatorError("Can't find backend: %s, "
"available choices: %s" %
(creatoropts['pkgmgr'],
','.join(backends.keys())))
creator = raw.RawImageCreator(creatoropts, pkgmgr, opts.compress_image,
opts.generate_bmap, opts.fstab_entry)
if len(recording_pkgs) > 0:
creator._recording_pkgs = recording_pkgs
images = ["%s-%s.raw" % (creator.name, disk_name)
for disk_name in creator.get_disk_names()]
self.check_image_exists(creator.destdir,
creator.pack_to,
images,
creatoropts['release'])
try:
creator.check_depend_tools()
creator.mount(None, creatoropts["cachedir"])
creator.install()
creator.configure(creatoropts["repomd"])
creator.copy_kernel()
creator.unmount()
creator.generate_bmap()
creator.package(creatoropts["outdir"])
if creatoropts['release'] is not None:
creator.release_output(ksconf, creatoropts['outdir'], creatoropts['release'])
creator.print_outimage_info()
except errors.CreatorError:
raise
finally:
creator.cleanup()
msger.info("Finished.")
return 0
@classmethod
def do_chroot(cls, target, cmd=[]):
img = target
imgsize = misc.get_file_size(img) * 1024L * 1024L
partedcmd = fs_related.find_binary_path("parted")
disk = fs_related.SparseLoopbackDisk(img, imgsize)
imgmnt = misc.mkdtemp()
imgloop = PartitionedMount(imgmnt, skipformat = True)
imgloop.add_disk('/dev/sdb', disk)
img_fstype = "ext3"
msger.info("Partition Table:")
partnum = []
for line in runner.outs([partedcmd, "-s", img, "print"]).splitlines():
# no use strip to keep line output here
if "Number" in line:
msger.raw(line)
if line.strip() and line.strip()[0].isdigit():
partnum.append(line.strip()[0])
msger.raw(line)
rootpart = None
if len(partnum) > 1:
rootpart = msger.choice("please choose root partition", partnum)
# Check the partitions from raw disk.
# if choose root part, the mark it as mounted
if rootpart:
root_mounted = True
else:
root_mounted = False
partition_mounts = 0
for line in runner.outs([partedcmd,"-s",img,"unit","B","print"]).splitlines():
line = line.strip()
# Lines that start with number are the partitions,
# because parted can be translated we can't refer to any text lines.
if not line or not line[0].isdigit():
continue
# Some vars have extra , as list seperator.
line = line.replace(",","")
# Example of parted output lines that are handled:
# Number Start End Size Type File system Flags
# 1 512B 3400000511B 3400000000B primary
# 2 3400531968B 3656384511B 255852544B primary linux-swap(v1)
# 3 3656384512B 3720347647B 63963136B primary fat16 boot, lba
partition_info = re.split("\s+",line)
size = partition_info[3].split("B")[0]
if len(partition_info) < 6 or partition_info[5] in ["boot"]:
# No filesystem can be found from partition line. Assuming
# btrfs, because that is the only MeeGo fs that parted does
# not recognize properly.
# TODO: Can we make better assumption?
fstype = "btrfs"
elif partition_info[5] in ["ext2","ext3","ext4","btrfs"]:
fstype = partition_info[5]
elif partition_info[5] in ["fat16","fat32"]:
fstype = "vfat"
elif "swap" in partition_info[5]:
fstype = "swap"
else:
raise errors.CreatorError("Could not recognize partition fs type '%s'." % partition_info[5])
if rootpart and rootpart == line[0]:
mountpoint = '/'
elif not root_mounted and fstype in ["ext2","ext3","ext4","btrfs"]:
# TODO: Check that this is actually the valid root partition from /etc/fstab
mountpoint = "/"
root_mounted = True
elif fstype == "swap":
mountpoint = "swap"
else:
# TODO: Assing better mount points for the rest of the partitions.
partition_mounts += 1
mountpoint = "/media/partition_%d" % partition_mounts
if "boot" in partition_info:
boot = True
else:
boot = False
msger.verbose("Size: %s Bytes, fstype: %s, mountpoint: %s, boot: %s" % (size, fstype, mountpoint, boot))
# TODO: add_partition should take bytes as size parameter.
imgloop.add_partition((int)(size)/1024/1024, "/dev/sdb", mountpoint, fstype = fstype, boot = boot)
try:
imgloop.mount()
except errors.MountError:
imgloop.cleanup()
raise
try:
if len(cmd) != 0:
cmdline = ' '.join(cmd)
else:
cmdline = "/bin/bash"
envcmd = fs_related.find_binary_inchroot("env", imgmnt)
if envcmd:
cmdline = "%s HOME=/root %s" % (envcmd, cmdline)
chroot.chroot(imgmnt, None, cmdline)
except:
raise errors.CreatorError("Failed to chroot to %s." %img)
finally:
chroot.cleanup_after_chroot("img", imgloop, None, imgmnt)
@classmethod
def do_unpack(cls, srcimg):
srcimgsize = (misc.get_file_size(srcimg)) * 1024L * 1024L
srcmnt = misc.mkdtemp("srcmnt")
disk = fs_related.SparseLoopbackDisk(srcimg, srcimgsize)
srcloop = PartitionedMount(srcmnt, skipformat = True)
srcloop.add_disk('/dev/sdb', disk)
srcloop.add_partition(srcimgsize/1024/1024, "/dev/sdb", "/", "ext3", boot=False)
try:
srcloop.mount()
except errors.MountError:
srcloop.cleanup()
raise
image = os.path.join(tempfile.mkdtemp(dir = "/var/tmp", prefix = "tmp"), "target.img")
args = ['dd', "if=%s" % srcloop.partitions[0]['device'], "of=%s" % image]
msger.info("`dd` image ...")
rc = runner.show(args)
srcloop.cleanup()
shutil.rmtree(os.path.dirname(srcmnt), ignore_errors = True)
if rc != 0:
raise errors.CreatorError("Failed to dd")
else:
return image
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