stack/agents/darkwing/work/queue-93/mut.mjs at sp2 - stack - Mosaic Gitea

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jason.woltje 158205c5cc lead: commit darkwing's untracked evidence (348 files: queue-137 queue-141 queue-150 queue-162 queue-165 queue-166 queue-167 queue-169 queue-179 queue-180 queue-181 queue-182 queue-185 queue-186 queue-187 queue-188 queue-190 queue-93)

Unclaimed files left in the canonical checkout. Inventory: canonical-cleanup-inventory.md (commit-as-evidence groups). detect-secrets scan clean on 2026-11-02: hits are sha256 pins, git object ids, test sentinels already in tracked tests and unit-file lines.

2026-11-02 15:05:14 -06:00

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 // node mut.mjs <file> <from> <to>: replace exactly one occurrence, else exit 3.
 import { readFileSync, writeFileSync } from 'node:fs';
 const [f, a, b] = process.argv.slice(2);
 const s = readFileSync(f, 'utf8'); const n = s.split(a).length - 1;
 if (n !== 1) { console.error(`matches=${n}`); process.exit(3); }
 writeFileSync(f, s.replace(a, () => b));