poky/scripts/lib/mic/plugins/imager/raw_plugin.py
Tom Zanussi ce2dabd393 wic: Remove dependency on rt_util module
rt_util contains bootstrap_mic(), which imports rpm and other things
we don't need because we don't do bootstrap i.e. runtime (set in
wic.conf) is always set to 'native', which means use what's on the
local host.

bootstrap mode is for downloading and installing rpms that wic needs,
which we may want to implement later; for now, we just want to use
what's local.

(From OE-Core rev: 3103f0cb908eced7b751128c2bba898d12017c80)

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-10-23 07:14:10 +01:00

276 lines
10 KiB
Python

#!/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