79 lines
2.4 KiB
JavaScript
79 lines
2.4 KiB
JavaScript
#!/usr/bin/env node
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/**
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* Stamp every staged `docs/work/**\/*.md` file's frontmatter `updated:` field
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* to the current ISO 8601 timestamp. Runs from `.husky/pre-commit` before
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* `pnpm work rebuild-state`, so `_state.json` sees the fresh value.
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*
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* Idempotent: re-running produces the same result. The script silently no-ops
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* on files without frontmatter or without an `updated:` line to replace —
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* adds the field after `created:` if missing.
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*
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* Only stamps files explicitly listed in the staged diff; never walks the
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* tree. That way the timestamp tracks "the last commit that actually
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* modified the file," not "the last commit period."
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*/
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import { execSync } from "node:child_process";
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import fs from "node:fs";
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import path from "node:path";
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const REPO_ROOT = execSync("git rev-parse --show-toplevel", {
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encoding: "utf8",
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}).trim();
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function stagedWorkDocs() {
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const out = execSync("git diff --cached --name-only --diff-filter=ACMR", {
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cwd: REPO_ROOT,
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encoding: "utf8",
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});
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return out
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.split("\n")
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.map((p) => p.trim())
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.filter(
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(p) =>
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p.startsWith("docs/work/") &&
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p.endsWith(".md") &&
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!p.endsWith("README.md"),
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);
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}
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function stampUpdated(content, isoNow) {
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const fmMatch = content.match(/^(---\n)([\s\S]+?)(\n---)/);
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if (!fmMatch) return content;
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const [full, openDelim, body, closeDelim] = fmMatch;
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let newBody;
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if (/^updated:\s*/m.test(body)) {
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newBody = body.replace(/^updated:\s*.*$/m, `updated: ${isoNow}`);
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} else if (/^created:\s*/m.test(body)) {
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// Insert `updated:` immediately after the `created:` line.
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newBody = body.replace(/^(created:\s*.*)$/m, `$1\nupdated: ${isoNow}`);
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} else {
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return content;
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}
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return content.replace(full, `${openDelim}${newBody}${closeDelim}`);
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}
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function main() {
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const files = stagedWorkDocs();
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if (files.length === 0) return;
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const isoNow = new Date().toISOString();
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let touched = 0;
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for (const rel of files) {
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const abs = path.join(REPO_ROOT, rel);
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if (!fs.existsSync(abs)) continue;
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const original = fs.readFileSync(abs, "utf8");
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const next = stampUpdated(original, isoNow);
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if (next === original) continue;
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fs.writeFileSync(abs, next);
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execSync(`git add ${JSON.stringify(rel)}`, { cwd: REPO_ROOT });
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touched++;
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}
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if (touched > 0) {
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console.log(
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`bump-updated-timestamps: stamped ${touched} file(s) at ${isoNow}`,
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);
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}
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}
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main();
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