diff options
Diffstat (limited to 'scripts/lib/mic/plugins/imager/livecd_plugin.py')
| -rw-r--r-- | scripts/lib/mic/plugins/imager/livecd_plugin.py | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/scripts/lib/mic/plugins/imager/livecd_plugin.py b/scripts/lib/mic/plugins/imager/livecd_plugin.py new file mode 100644 index 0000000000..d24ef59264 --- /dev/null +++ b/scripts/lib/mic/plugins/imager/livecd_plugin.py @@ -0,0 +1,255 @@ +#!/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, rt_util +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 |