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https://github.com/systemd/systemd.git
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79 lines
2.1 KiB
Python
79 lines
2.1 KiB
Python
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#!/usr/bin/python
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# SPDX-License-Identifier: LGPL-2.1-or-later
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"""
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A helper to compare 'systemd-analyze dump' outputs.
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systemd-analyze dump >/var/tmp/dump1
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(reboot)
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tools/analyze-dump-sort.py /var/tmp/dump1 → this does a diff from dump1 to current
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systemd-analyze dump >/var/tmp/dump2
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tools/analyze-dump-sort.py /var/tmp/{dump1,dump2} → this does a diff from dump1 to dump2
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"""
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import argparse
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import tempfile
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import subprocess
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def sort_dump(sourcefile, destfile=None):
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if destfile is None:
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destfile = tempfile.NamedTemporaryFile('wt')
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units = {}
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unit = []
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same = []
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for line in sourcefile:
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line = line.rstrip()
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header = line.split(':')[0]
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if 'Timestamp' in header or 'Invocation ID' in header or 'PID' in header:
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line = header + ': …'
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if line.startswith('->'):
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if unit:
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units[unit[0]] = unit
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unit = [line]
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elif line.startswith('\t'):
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assert unit
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if same and same[0].startswith(header):
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same.append(line)
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else:
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unit.extend(sorted(same, key=str.lower))
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same = [line]
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else:
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print(line, file=destfile)
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if unit:
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units[unit[0]] = unit
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for unit in sorted(units.values()):
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print('\n'.join(unit), file=destfile)
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destfile.flush()
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return destfile
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def parse_args():
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p = argparse.ArgumentParser(description=__doc__)
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p.add_argument('one')
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p.add_argument('two', nargs='?')
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p.add_argument('--user', action='store_true')
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return p.parse_args()
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if __name__ == '__main__':
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opts = parse_args()
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one = sort_dump(open(opts.one))
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if opts.two:
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two = sort_dump(open(opts.two))
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else:
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user = ['--user'] if opts.user else []
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two = subprocess.run(['systemd-analyze', 'dump', *user],
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capture_output=True, text=True, check=True)
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two = sort_dump(two.stdout.splitlines())
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with subprocess.Popen(['diff', '-U10', one.name, two.name], stdout=subprocess.PIPE) as diff:
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subprocess.Popen(['less'], stdin=diff.stdout)
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