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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Copyright (C) 2018-2022 Matthias Klumpp <matthias@tenstral.net>
#
# SPDX-License-Identifier: LGPL-3.0-or-later
#
# This is a helper script to install additional configuration and documentation into
# system locations, which Python's setuptools and pip will not usually let us install.
#
import os
import sys
import shutil
from pathlib import Path
from argparse import ArgumentParser
from tempfile import TemporaryDirectory
try:
import pkgconfig
except ImportError:
print()
print(
(
'Unable to import pkgconfig. Please install the module '
'(apt install python3-pkgconfig or pip install pkgconfig) '
'to continue.'
)
)
print()
sys.exit(4)
from docs.assemble_man import create_manpage, generate_docbook_pages
class Installer:
def __init__(self, root: str = None, prefix: str = None):
if not root:
root = os.environ.get('DESTDIR')
if not root:
root = '/'
self.root = root
if not prefix:
prefix = '/usr/local' if self.root == '/' else '/usr'
if prefix.startswith('/'):
prefix = prefix[1:]
self.prefix = prefix
def install(self, src, dst, replace_vars=False):
if dst.startswith('/'):
dst = dst[1:]
dst_full = os.path.join(self.root, dst, os.path.basename(src))
else:
dst_full = os.path.join(self.root, self.prefix, dst, os.path.basename(src))
Path(os.path.dirname(dst_full)).mkdir(mode=0o755, parents=True, exist_ok=True)
if replace_vars:
with open(src, 'r') as f_src:
with open(dst_full, 'w') as f_dst:
for line in f_src:
f_dst.write(line.replace('@PREFIX@', '/' + self.prefix))
else:
shutil.copy(src, dst_full)
os.chmod(dst_full, 0o644)
print('{}\t\t{}'.format(os.path.basename(src), dst_full))
def chdir_to_source_root():
thisfile = __file__
if not os.path.isabs(thisfile):
thisfile = os.path.normpath(os.path.join(os.getcwd(), thisfile))
os.chdir(os.path.dirname(thisfile))
def make_manpages(temp_dir):
'''Build manual pages'''
# check for xsltproc, we need it to build manual pages
if not shutil.which('xsltproc'):
print('The "xsltproc" binary was not found. Please install it to continue!')
sys.exit(1)
build_dir = os.path.join(temp_dir, 'docbook')
Path(build_dir).mkdir(parents=True, exist_ok=True)
pages = generate_docbook_pages(build_dir)
man_files = []
for page in pages:
man_files.append(create_manpage(page, temp_dir))
return man_files
def install_data(temp_dir: str, root_dir: str, prefix_dir: str):
chdir_to_source_root()
print('Checking dependencies')
if not pkgconfig.installed('systemd', '>= 240'):
print('Systemd is not installed on this system. Please make systemd available to continue.')
sys.exit(4)
print('Generating manual pages')
manpage_files = make_manpages(temp_dir)
print('Installing data')
inst = Installer(root_dir, prefix_dir)
sd_tmpfiles_dir = pkgconfig.variables('systemd')['tmpfilesdir']
sd_system_unit_dir = pkgconfig.variables('systemd')['systemdsystemunitdir']
man_dir = os.path.join('share', 'man', 'man1')
inst.install('data/tmpfiles.d/debspawn.conf', sd_tmpfiles_dir)
inst.install('data/services/debspawn-clear-caches.timer', sd_system_unit_dir)
inst.install('data/services/debspawn-clear-caches.service', sd_system_unit_dir, replace_vars=True)
for mf in manpage_files:
inst.install(mf, man_dir)
def main():
parser = ArgumentParser(description='Debspawn system data installer')
parser.add_argument(
'--root', action='store', dest='root', default=None, help='Root directory to install into.'
)
parser.add_argument(
'--prefix',
action='store',
dest='prefix',
default=None,
help='Directory prefix (usually `/usr` or `/usr/local`).',
)
options = parser.parse_args(sys.argv[1:])
with TemporaryDirectory(prefix='dsinstall-') as temp_dir:
install_data(temp_dir, options.root, options.prefix)
return 0
if __name__ == '__main__':
sys.exit(main())
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