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#!/usr/bin/python -tt
#
# livecd-creator : Creates Live CD based for Fedora.
#
# Copyright 2007, Red Hat 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 Library 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 os.path
import sys
import time
import optparse
import logging
import shutil
from distutils.dir_util import copy_tree
import imgcreate
from imgcreate.fs import makedirs
class myLiveImageCreator(imgcreate.x86LiveImageCreator):
def __init__(self, ks, name, fslabel=None, releasever=None, tmpdir="/tmp",
title="Linux", product="Linux"):
imgcreate.x86LiveImageCreator.__init__(self, ks, name,
fslabel=fslabel,
releasever=releasever,
tmpdir=tmpdir)
#self._outdir=os.getenv("TESTDIR", ".")
def install(self, repo_urls = {}):
copy_tree(os.environ.get("TESTDIR", ".") + "/root-source", self._instroot)
def configure(self):
self._create_bootconfig()
def _get_kernel_versions(self):
ret = {}
version=os.uname()
version=version[2]
ret["kernel-" + version] = [version]
return ret
def __sanity_check(self):
pass
class Usage(Exception):
def __init__(self, msg = None, no_error = False):
Exception.__init__(self, msg, no_error)
def parse_options(args):
parser = optparse.OptionParser()
imgopt = optparse.OptionGroup(parser, "Image options",
"These options define the created image.")
imgopt.add_option("-c", "--config", type="string", dest="kscfg",
help="Path or url to kickstart config file")
imgopt.add_option("-b", "--base-on", type="string", dest="base_on",
help="Add packages to an existing live CD iso9660 image.")
imgopt.add_option("-f", "--fslabel", type="string", dest="fslabel",
help="File system label (default based on config name)")
# Provided for img-create compatibility
imgopt.add_option("-n", "--name", type="string", dest="fslabel",
help=optparse.SUPPRESS_HELP)
imgopt.add_option("", "--image-type", type="string", dest="image_type",
help=optparse.SUPPRESS_HELP)
imgopt.add_option("", "--compression-type", type="string", dest="compress_type",
help="Compression type recognized by mksquashfs "
"(default xz needs a 2.6.38+ kernel, gzip works "
"with all kernels, lzo needs a 2.6.36+ kernel, lzma "
"needs custom kernel.) Set to 'None' to force read "
"from base_on.",
default="xz")
imgopt.add_option("", "--releasever", type="string", dest="releasever",
default=None,
help="Value to substitute for $releasever in kickstart repo urls")
parser.add_option_group(imgopt)
# options related to the config of your system
sysopt = optparse.OptionGroup(parser, "System directory options",
"These options define directories used on your system for creating the live image")
sysopt.add_option("-t", "--tmpdir", type="string",
dest="tmpdir", default="/var/tmp",
help="Temporary directory to use (default: /var/tmp)")
sysopt.add_option("", "--cache", type="string",
dest="cachedir", default=None,
help="Cache directory to use (default: private cache")
parser.add_option_group(sysopt)
imgcreate.setup_logging(parser)
# debug options not recommended for "production" images
# Start a shell in the chroot for post-configuration.
parser.add_option("-l", "--shell", action="store_true", dest="give_shell",
help=optparse.SUPPRESS_HELP)
# Don't compress the image.
parser.add_option("-s", "--skip-compression", action="store_true", dest="skip_compression",
help=optparse.SUPPRESS_HELP)
parser.add_option("", "--skip-minimize", action="store_true", dest="skip_minimize",
help=optparse.SUPPRESS_HELP)
(options, args) = parser.parse_args()
# Pretend to be a image-creator if called with that name
options.image_type = 'livecd'
if options.image_type not in ('livecd', 'image'):
raise Usage("'%s' is a recognized image type" % options.image_type)
# image-create compatibility: Last argument is kickstart file
if len(args) == 1:
options.kscfg = args.pop()
if len(args):
raise Usage("Extra arguments given")
if options.base_on and not os.path.isfile(options.base_on):
raise Usage("Image file '%s' does not exist" %(options.base_on,))
if options.image_type == 'livecd':
if options.fslabel and len(options.fslabel) > imgcreate.FSLABEL_MAXLEN:
raise Usage("CD labels are limited to 32 characters")
if options.fslabel and options.fslabel.find(" ") != -1:
raise Usage("CD labels cannot contain spaces.")
return options
def main():
try:
options = parse_options(sys.argv[1:])
except Usage, (msg, no_error):
if no_error:
out = sys.stdout
ret = 0
else:
out = sys.stderr
ret = 2
if msg:
print >> out, msg
return ret
if os.geteuid () != 0:
print >> sys.stderr, "You must run %s as root" % sys.argv[0]
return 1
if options.fslabel:
fslabel = options.fslabel
name = fslabel
else:
name = "livecd"
fslabel = "LiveCD"
logging.info("Using label '%s' and name '%s'" % (fslabel, name))
ks = imgcreate.read_kickstart(options.kscfg)
creator = myLiveImageCreator(ks, name,
fslabel=fslabel,
releasever=options.releasever,
tmpdir=os.path.abspath(options.tmpdir))
creator.compress_type = options.compress_type
creator.skip_compression = options.skip_compression
creator.skip_minimize = options.skip_minimize
if options.cachedir:
options.cachedir = os.path.abspath(options.cachedir)
try:
creator.mount(options.base_on, options.cachedir)
creator.install()
creator.configure()
if options.give_shell:
print "Launching shell. Exit to continue."
print "----------------------------------"
creator.launch_shell()
creator.unmount()
creator.package(os.environ.get("TESTDIR", "."))
except imgcreate.CreatorError, e:
logging.error(u"Error creating Live CD : %s" % e)
return 1
finally:
creator.cleanup()
return 0
if __name__ == "__main__":
sys.exit(main())
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