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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
# TODO:
# * logfile output
# * lockfile handling
# * use gettext for i18n
def main():
## Parsing Arguments
arguments = argparse.ArgumentParser(
prog = 'lb chroot_hooks',
usage = '%(prog)s [arguments]',
description = '''live-build contains the components to build a live system from a configuration directory.
The chroot_hooks command executes hooks after the chroot stage.''',
epilog = 'See \'man lb_chroot_hooks\' for more information.',
version = 'live-build 4',
formatter_class = argparse.ArgumentDefaultsHelpFormatter
)
arguments.add_argument('--verbose', help='set verbose option', action='store_true')
args = arguments.parse_args()
# --verbose
verbose = args.verbose
## Executing hooks
# stagefile
if os.path.isfile('.build/chroot_hooks'):
if verbose:
print('I: chroot_hooks already done - nothing to do')
sys.exit(0)
# dependencies
if not os.path.isfile('.build/bootstrap'):
print('E: bootstrap stage missing - aborting', file=sys.stderr)
if verbose:
print('I: use \'lb bootstrap\' to bootstrap system')
sys.exit(1)
# hooks
if not glob.glob('config/hooks/*.hook') and not glob.glob('config/hooks/*.hook.chroot'):
if verbose:
print ('I: no chroot hooks found at config/hooks/*.hook{,.chroot} - nothing to do')
sys.exit(0)
# bind mount configuration directory
if verbose:
print('I: Mounting config to chroot/live-build/config')
os.makedirs('chroot/live-build/config', exist_ok=True)
mount = subprocess.call('mount -o bind config chroot/live-build/config', shell=True)
remount = subprocess.call('mount -o remount,ro,bind chroot/live-build/config', shell=True)
# process hooks
os.makedirs('chroot/live-build', exist_ok=True)
hooks = glob.glob('config/hooks/*.hook') + glob.glob('config/hooks/*.hook.chroot')
for hook in hooks:
if verbose:
print('I: Copying config/hooks/*.hook.chroot to chroot/live-build')
os.link(hook, os.path.join('chroot/live-build/' + os.path.basename(hook)), follow_symlinks=True)
if verbose:
print('I: Executing \' ' + hook + '\'')
os.chmod(hook, 0o755)
exec_hook = subprocess.call('chroot chroot /live-build/' + os.path.basename(hook), shell=True)
os.remove('chroot/live-build/' + os.path.basename(hook))
# unmount coniguration directory
umount = subprocess.call('umount chroot/live-build/config', shell=True)
os.rmdir('chroot/live-build/config')
os.rmdir('chroot/live-build')
## stagefile
os.makedirs('.build', exist_ok=True)
open('.build/chroot_hooks', 'w').close()
if __name__ == '__main__':
main()
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