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systemd-stable/tools/dbus_exporter.py

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#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1-or-later
from argparse import ArgumentParser
from pathlib import Path
from subprocess import run, PIPE
def extract_interfaces_xml(output_dir, executable):
list_interfaces_process = run(
args=[executable.absolute(), '--bus-introspect', 'list'],
stdout=PIPE,
check=True,
universal_newlines=True,
)
interfaces_lines = list_interfaces_process.stdout.splitlines()
interface_names = [x.split()[1] for x in interfaces_lines]
for interface_name in interface_names:
interface_introspection_run = run(
args=[executable.absolute(), '--bus-introspect', interface_name],
stdout=PIPE,
check=True,
universal_newlines=True,
)
interface_file_name = output_dir / (interface_name + '.xml')
with open(interface_file_name, mode='w') as f:
f.write(interface_introspection_run.stdout)
interface_file_name.chmod(0o644)
def iterate_executables(output_dir, executables):
output_dir.mkdir(mode=0o755, exist_ok=True)
for exe in executables:
extract_interfaces_xml(output_dir, exe)
def main():
parser = ArgumentParser()
parser.add_argument(
'output',
type=Path,
)
parser.add_argument(
'executables',
type=Path,
nargs='+',
)
args = parser.parse_args()
iterate_executables(args.output, args.executables)
if __name__ == '__main__':
main()