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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /tools/analyze-dump-sort.py
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/analyze-dump-sort.py')
-rwxr-xr-xtools/analyze-dump-sort.py80
1 files changed, 80 insertions, 0 deletions
diff --git a/tools/analyze-dump-sort.py b/tools/analyze-dump-sort.py
new file mode 100755
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+++ b/tools/analyze-dump-sort.py
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+#!/usr/bin/python
+# SPDX-License-Identifier: LGPL-2.1-or-later
+# pylint: disable=consider-using-with
+
+"""
+A helper to compare 'systemd-analyze dump' outputs.
+
+systemd-analyze dump >/var/tmp/dump1
+(reboot)
+tools/analyze-dump-sort.py /var/tmp/dump1 → this does a diff from dump1 to current
+
+systemd-analyze dump >/var/tmp/dump2
+tools/analyze-dump-sort.py /var/tmp/{dump1,dump2} → this does a diff from dump1 to dump2
+"""
+
+import argparse
+import subprocess
+import tempfile
+
+
+def sort_dump(sourcefile, destfile=None):
+ if destfile is None:
+ destfile = tempfile.NamedTemporaryFile('wt')
+
+ units = {}
+ unit = []
+
+ same = []
+
+ for line in sourcefile:
+ line = line.rstrip()
+
+ header = line.split(':')[0]
+ if 'Timestamp' in header or 'Invocation ID' in header or 'PID' in header:
+ line = header + ': …'
+
+ if line.startswith('->'):
+ if unit:
+ units[unit[0]] = unit
+ unit = [line]
+ elif line.startswith('\t'):
+ assert unit
+
+ if same and same[0].startswith(header):
+ same.append(line)
+ else:
+ unit.extend(sorted(same, key=str.lower))
+ same = [line]
+ else:
+ print(line, file=destfile)
+
+ if unit:
+ units[unit[0]] = unit
+
+ for unit in sorted(units.values()):
+ print('\n'.join(unit), file=destfile)
+
+ destfile.flush()
+ return destfile
+
+def parse_args():
+ p = argparse.ArgumentParser(description=__doc__)
+ p.add_argument('one')
+ p.add_argument('two', nargs='?')
+ p.add_argument('--user', action='store_true')
+ return p.parse_args()
+
+if __name__ == '__main__':
+ opts = parse_args()
+
+ one = sort_dump(open(opts.one))
+ if opts.two:
+ two = sort_dump(open(opts.two))
+ else:
+ user = ['--user'] if opts.user else []
+ two = subprocess.run(['systemd-analyze', 'dump', *user],
+ capture_output=True, text=True, check=True)
+ two = sort_dump(two.stdout.splitlines())
+ with subprocess.Popen(['diff', '-U10', one.name, two.name], stdout=subprocess.PIPE) as diff:
+ subprocess.Popen(['less'], stdin=diff.stdout)