1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
#!/usr/bin/python3
## live-build(7) - Live System Build Components
## Copyright (C) 2006-2014 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
# * 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.check_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.check_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.check_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.check_call('cp -a chroot cache/bootstrap', shell=True)
# stagefile
os.makedirs('.build', exist_ok=True)
open('.build/bootstrap', 'w').close()
if __name__ == '__main__':
main()
|
