Initial commit

grep-mtime-sorter.mjs

@@ -0,0 +1,72 @@
+/* VIBE ALERT
+
+This code was generated using OpenAI’s ChatGPT (GPT-5.2 Thinking, large language model).
+The output has not been independently reviewed, audited, or comprehensively validated,
+and has only been superficially tested. It should be considered experimental and not fully vetted for production use.
+
+*/
+
+import fs from 'node:fs';
+import { stat } from 'node:fs/promises';
+
+const lineRe = /^\x1b\[35m\x1b\[K(.*?)\x1b/;
+
+
+function isoFormat(timestamp) {
+	if (timestamp) {
+		const d = new Date(timestamp * 1000);
+		const pad = (n) => String(n).padStart(2, '0');
+		return `${d.getFullYear()}-${pad(d.getMonth() + 1)}-${pad(d.getDate())} ${pad(d.getHours())}:${pad(d.getMinutes())}`;
+	} else {
+		return 'Unknown';
+	}
+}
+
+async function getMtime(line) {
+	const m = lineRe.exec(line);
+	if (m) {
+		const filename = m[1];
+		try {
+			const s = await stat(filename);
+			return s.mtimeMs / 1000;
+		} catch {
+			return 0;
+		}
+	} else {
+		throw new Error('Malformed input: ANSI prefix not found');
+	}
+}
+
+async function main() {
+	const input = await new Promise((resolve) => {
+		let data = '';
+		process.stdin.setEncoding('utf8');
+		process.stdin.on('data', (chunk) => { data += chunk; });
+		process.stdin.on('end', () => { resolve(data); });
+	});
+
+	const lines = input.split(/(?<=\n)/);
+
+	const pairs = await Promise.all(
+		lines.map(async (line, index) => {
+			const t = await getMtime(line);
+			return { t, index };
+		})
+	);
+
+	pairs.sort((a, b) => {
+		if (a.t !== b.t) {
+			return a.t - b.t;
+		} else {
+			return a.index - b.index;
+		}
+	});
+
+	for (const { t, index } of pairs) {
+		const ts = isoFormat(t).padStart(16, ' ');
+		process.stdout.write(`\x1b[94m${ts}\x1b[0m `);
+		process.stdout.write(lines[index]);
+	}
+}
+
+await main();