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