jason.woltjeandClaude Opus 5.5
21e8f64ea7
Build patch against c6570f142, candidate manifest (4 files), repro,
mutant (killed, 2 of 191), targeted gate (cli 191/0, webui 23/0) and
build.md.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
60 lines
2.7 KiB
Python
Executable File
60 lines
2.7 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Row 130 mutant: drop the extra stderr line from run() in cli.mjs, run the
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cli suite, and restore the file from .orig with a sha256 check."""
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import hashlib, os, re, shutil, signal, subprocess
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WT = os.path.expanduser('~/darkwing-scratch/r130/wt')
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PKT = os.path.expanduser('~/darkwing-scratch/r130/pkt')
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TMP = os.path.expanduser('~/darkwing-scratch/r130/tmp')
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F = 'packages/cli/src/cli.mjs'
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LINE = ' if (OTHER_TREE_CODES.has(error.code)) io.stderr.write(`mosaic: ${OTHER_TREE}\\n`);\n'
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M = [('m1-drop-other-tree-line', LINE)]
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def sha(p):
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return hashlib.sha256(open(p, 'rb').read()).hexdigest()
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# Kill only processes left with a cwd under this row's TMPDIR.
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def sweep():
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left = []
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for pid in filter(str.isdigit, os.listdir('/proc')):
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try:
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if os.readlink(f'/proc/{pid}/cwd').startswith(TMP + '/'):
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left.append(int(pid)); os.kill(int(pid), signal.SIGKILL)
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except OSError:
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pass
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return left
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os.chdir(WT)
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env = dict(os.environ, TMPDIR=TMP, NO_COLOR='1')
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base = sha(F)
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os.makedirs(os.path.join(PKT, 'mutants'), exist_ok=True)
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log = open(os.path.join(PKT, 'mutants-run.log'), 'a')
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for name, drop in M:
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src = open(F).read()
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if src.count(drop) != 1:
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print(f'{name}: pattern not found once, skipped', file=log, flush=True); print(name, 'BAD PATTERN'); continue
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shutil.copy2(F, F + '.orig')
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try:
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open(F, 'w').write(src.replace(drop, ''))
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p = subprocess.Popen('node --test tests/*.test.mjs', shell=True, cwd='packages/cli', stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT, env=env, start_new_session=True, text=True)
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try:
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res, _ = p.communicate(timeout=900)
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except subprocess.TimeoutExpired:
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os.killpg(p.pid, signal.SIGKILL); res, _ = p.communicate(); res += '\nTIMEOUT\n'
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open(os.path.join(PKT, 'mutants', f'mutant-{name}.log'), 'w').write(res)
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fails = sorted({l.strip()[2:] for l in res.splitlines() if l.strip().startswith('✖ ') and l.strip() != '✖ failing tests:'})
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tally = dict(re.findall(r'^ℹ (pass|fail) (\d+)$', res, re.M))
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verdict = 'killed' if p.returncode != 0 else 'SURVIVED'
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print(f'{name}: {verdict} (rc {p.returncode}, pass {tally.get("pass", "?")}, fail {tally.get("fail", "?")})', file=log, flush=True)
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for l in fails:
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print(f' fail: {l}', file=log, flush=True)
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left = sweep()
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if left:
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print(f' swept {len(left)} leftover process(es) under TMPDIR: {left}', file=log, flush=True)
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print(name, verdict, tally, flush=True)
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finally:
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shutil.move(F + '.orig', F)
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assert sha(F) == base, f'{F} not restored'
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print('restored:', sha(F) == base, file=log, flush=True)
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