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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 tempfile
from mic import chroot, msger
from mic.utils import misc, fs_related, errors
from mic.conf import configmgr
import mic.imager.livecd as livecd
from mic.plugin import pluginmgr
from mic.pluginbase import ImagerPlugin
class LiveCDPlugin(ImagerPlugin):
name = 'livecd'
@classmethod
def do_create(self, subcmd, opts, *args):
"""${cmd_name}: create livecd 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()
if creatoropts['arch'] and creatoropts['arch'].startswith('arm'):
msger.warning('livecd cannot support arm images, Quit')
return
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 = livecd.LiveCDImageCreator(creatoropts, pkgmgr)
if len(recording_pkgs) > 0:
creator._recording_pkgs = recording_pkgs
self.check_image_exists(creator.destdir,
creator.pack_to,
[creator.name + ".iso"],
creatoropts['release'])
try:
creator.check_depend_tools()
creator.mount(None, creatoropts["cachedir"])
creator.install()
creator.configure(creatoropts["repomd"])
creator.copy_kernel()
creator.unmount()
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=[]):
os_image = cls.do_unpack(target)
os_image_dir = os.path.dirname(os_image)
# unpack image to target dir
imgsize = misc.get_file_size(os_image) * 1024L * 1024L
imgtype = misc.get_image_type(os_image)
if imgtype == "btrfsimg":
fstype = "btrfs"
myDiskMount = fs_related.BtrfsDiskMount
elif imgtype in ("ext3fsimg", "ext4fsimg"):
fstype = imgtype[:4]
myDiskMount = fs_related.ExtDiskMount
else:
raise errors.CreatorError("Unsupported filesystem type: %s" % fstype)
extmnt = misc.mkdtemp()
extloop = myDiskMount(fs_related.SparseLoopbackDisk(os_image, imgsize),
extmnt,
fstype,
4096,
"%s label" % fstype)
try:
extloop.mount()
except errors.MountError:
extloop.cleanup()
shutil.rmtree(extmnt, ignore_errors = True)
shutil.rmtree(os_image_dir, ignore_errors = True)
raise
try:
if len(cmd) != 0:
cmdline = ' '.join(cmd)
else:
cmdline = "/bin/bash"
envcmd = fs_related.find_binary_inchroot("env", extmnt)
if envcmd:
cmdline = "%s HOME=/root %s" % (envcmd, cmdline)
chroot.chroot(extmnt, None, cmdline)
except:
raise errors.CreatorError("Failed to chroot to %s." %target)
finally:
chroot.cleanup_after_chroot("img", extloop, os_image_dir, extmnt)
@classmethod
def do_pack(cls, base_on):
import subprocess
def __mkinitrd(instance):
kernelver = instance._get_kernel_versions().values()[0][0]
args = [ "/usr/libexec/mkliveinitrd", "/boot/initrd-%s.img" % kernelver, "%s" % kernelver ]
try:
subprocess.call(args, preexec_fn = instance._chroot)
except OSError, (err, msg):
raise errors.CreatorError("Failed to execute /usr/libexec/mkliveinitrd: %s" % msg)
def __run_post_cleanups(instance):
kernelver = instance._get_kernel_versions().values()[0][0]
args = ["rm", "-f", "/boot/initrd-%s.img" % kernelver]
try:
subprocess.call(args, preexec_fn = instance._chroot)
except OSError, (err, msg):
raise errors.CreatorError("Failed to run post cleanups: %s" % msg)
convertoropts = configmgr.convert
convertoropts['name'] = os.path.splitext(os.path.basename(base_on))[0]
convertor = livecd.LiveCDImageCreator(convertoropts)
imgtype = misc.get_image_type(base_on)
if imgtype == "btrfsimg":
fstype = "btrfs"
elif imgtype in ("ext3fsimg", "ext4fsimg"):
fstype = imgtype[:4]
else:
raise errors.CreatorError("Unsupported filesystem type: %s" % fstype)
convertor._set_fstype(fstype)
try:
convertor.mount(base_on)
__mkinitrd(convertor)
convertor._create_bootconfig()
__run_post_cleanups(convertor)
convertor.launch_shell(convertoropts['shell'])
convertor.unmount()
convertor.package()
convertor.print_outimage_info()
finally:
shutil.rmtree(os.path.dirname(base_on), ignore_errors = True)
@classmethod
def do_unpack(cls, srcimg):
img = srcimg
imgmnt = misc.mkdtemp()
imgloop = fs_related.DiskMount(fs_related.LoopbackDisk(img, 0), imgmnt)
try:
imgloop.mount()
except errors.MountError:
imgloop.cleanup()
raise
# legacy LiveOS filesystem layout support, remove for F9 or F10
if os.path.exists(imgmnt + "/squashfs.img"):
squashimg = imgmnt + "/squashfs.img"
else:
squashimg = imgmnt + "/LiveOS/squashfs.img"
tmpoutdir = misc.mkdtemp()
# unsquashfs requires outdir mustn't exist
shutil.rmtree(tmpoutdir, ignore_errors = True)
misc.uncompress_squashfs(squashimg, tmpoutdir)
try:
# legacy LiveOS filesystem layout support, remove for F9 or F10
if os.path.exists(tmpoutdir + "/os.img"):
os_image = tmpoutdir + "/os.img"
else:
os_image = tmpoutdir + "/LiveOS/ext3fs.img"
if not os.path.exists(os_image):
raise errors.CreatorError("'%s' is not a valid live CD ISO : neither "
"LiveOS/ext3fs.img nor os.img exist" %img)
imgname = os.path.basename(srcimg)
imgname = os.path.splitext(imgname)[0] + ".img"
rtimage = os.path.join(tempfile.mkdtemp(dir = "/var/tmp", prefix = "tmp"), imgname)
shutil.copyfile(os_image, rtimage)
finally:
imgloop.cleanup()
shutil.rmtree(tmpoutdir, ignore_errors = True)
shutil.rmtree(imgmnt, ignore_errors = True)
return rtimage
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