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#!/usr/bin/python3
## live-build(7) - Live System Build Components
## Copyright (C) 2006-2013 Daniel Baumann <mail@daniel-baumann.ch>
##
## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
## This is free software, and you are welcome to redistribute it
## under certain conditions; see COPYING for details.
import argparse
import configparser
import glob
import os
import shutil
import subprocess
import sys
# TODOs:
# * logfile output
# * lockfile handling
# * use gettext for i18n
# * cdebootstrap-options from config/options/cdebootstrap
# * take mirrors from config/archives/mirror.{bootstrap,chroot}
def main():
## Parsing Arguments
arguments = argparse.ArgumentParser(
prog = 'lb bootstrap-cdebootstrap',
usage = '%(prog)s [arguments]',
description = '''live-build contains the components to build a live system from a configuration directory.
The bootstrap-cdebootstrap command bootstraps the chroot system with cdebootstrap.''',
epilog = 'See \'man lb-bootstrap-cdebootstrap\' for more information.',
formatter_class = argparse.ArgumentDefaultsHelpFormatter
)
arguments.add_argument('--version', help='show program\'s version number and exit', action='version', version='live-build 4')
arguments.add_argument('--verbose', help='set verbose option', action='store_true')
arguments.add_argument('--cdebootstrap-options', help='set cdebootstrap(1) options' )
args = arguments.parse_args()
## Parsing Configuration
if not os.path.isfile('config/build'):
print('E: config/build - no such file', file=sys.stderr)
sys.exit(1)
config = configparser.ConfigParser()
config.read('config/build')
try:
architecture = config.get('Image', 'Architecture')
distribution = config.get('Image', 'Parent-Distribution')
mirror_bootstrap = config.get('Image', 'Parent-Mirror-Bootstrap')
except:
distribution = config.get('Image', 'Distribution')
mirror_bootstrap = config.get('Image', 'Mirror-Bootstrap')
# --verbose
verbose = args.verbose
# --cdebootstrap-options
cdebootstrap_options_late = distribution + ' chroot ' + mirror_bootstrap
cdebootstrap_options_early = ''
if (architecture) and (not architecture == 'auto'):
cdebootstrap_options_early = cdebootstrap_options_early + ' --arch=' + architecture
if args.cdebootstrap_options:
cdebootstrap_options = cdebootstrap_options_early + ' ' + args.cdebootstrap_options + ' ' + cdebootstrap_options_late
else:
cdebootstrap_options = cdebootstrap_options_early + ' ' + cdebootstrap_options_late
## Calling cdebootstrap
# stagefile
if os.path.isfile('.build/bootstrap'):
if verbose:
print('I: bootstrap already done - nothing to do')
sys.exit(0)
# dependencies
if not os.path.isfile('/usr/bin/cdebootstrap'):
print('E: /usr/bin/cdebootstrap - no such file', file=sys.stderr)
if verbose:
print('I: cdebootstrap can be obtained from:\n'
'I: http://anonscm.debian.org/gitweb/?p=users/waldi/cdebootstrap.git\n'
'I: http://ftp.debian.org/debian/pool/main/c/cdebootstrap/\n'
'I: On Debian based systems, cdebootstrap can be installed with:\n'
'I: # sudo apt-get install cdebootstrap')
sys.exit(1)
# clean
if os.path.exists('chroot'):
print('E: chroot already exists - unclean build', file=sys.stderr)
if verbose:
print('I: use \'lb clean\' to clean up a previously incomplete build')
sys.exit(1)
# stage cache
if os.path.exists('cache/bootstrap'):
if verbose:
print('I: Copying cache/bootstrap to chroot')
# Notes:
# * there's no Python equivalent to 'cp -a' that handels both symlinks and device nodes properly.
cache = subprocess.call('cp -a cache/bootstrap chroot', shell=True)
os.makedirs('.build', exist_ok=True)
open('.build/bootstrap', 'w').close()
sys.exit(0)
# packages cache
if glob.glob('cache/packages.bootstrap/*.deb'):
if verbose:
print('I: Copying cache/packages.bootstrap/*.deb to chroot/var/cache/bootstrap/*.deb')
# Notes:
# * copy instead of move to make cache survive incomplete build
os.makedirs('chroot/var/cache/bootstrap', exist_ok=True)
for package in glob.glob('cache/packages.bootstrap/*.deb'):
os.link(package, os.path.join('chroot/var/cache/bootstrap/' + os.path.basename(package)))
else:
# cdebootstrap
if verbose:
print('I: Calling \'/usr/bin/debootstrap --download-only ' + cdebootstrap_options + '\'')
# Notes:
# * calling cdebootstrap twice:
# - to use already downloaded /var/cache/bootstrap/*.deb on incomplete builds
# - to use /var/cache/boottrap/*.deb for debian-installer
cdebootstrap = subprocess.call('/usr/bin/cdebootstrap --download-only ' + cdebootstrap_options, shell=True)
# package cache
if glob.glob('chroot/var/cache/bootstrap/*.deb'):
if verbose:
print('I: Copying chroot/var/cache/bootstrap/*.deb to cache/packages.bootstrap')
# Notes:
# * remove first to keep cache minimal
# * remove files instead of directory to work with symlinked directory
for package in glob.glob('cache/packages.bootstrap/*.deb'):
os.remove(package)
os.makedirs('cache/packages.bootstrap', exist_ok=True)
for package in glob.glob('chroot/var/cache/bootstrap/*.deb'):
shutil.copy2(package, 'cache/packages.bootstrap')
# cdebootstrap
if not os.path.exists('chroot/bin'):
if verbose:
print('I: Calling \'/usr/bin/debootstrap ' + cdebootstrap_options + '\'')
cdebootstrap = subprocess.call('/usr/bin/cdebootstrap ' + cdebootstrap_options, shell=True)
# stage cache
if not os.path.exists('cache/bootstrap'):
if verbose:
print('I: Copying chroot to cache/bootstrap')
# Notes:
# * there's no Python equivalent to 'cp -a' that handels both symlinks and device nodes properly.
cache = subprocess.call('cp -a chroot cache/bootstrap', shell=True)
# stagefile
os.makedirs('.build', exist_ok=True)
open('.build/bootstrap', 'w').close()
if __name__ == '__main__':
main()
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