31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
#!/usr/bin/env bun
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// Splits a manifest [{file,count,diagPath}] into N interleaved shards so each
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// shard gets a mix of high- and low-count files. Writes shard-<i>.json under
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// argv[4] (default /tmp/clippy-loop/shards) and prints the paths.
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import { mkdirSync, readFileSync, writeFileSync } from "node:fs";
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import { join } from "node:path";
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const manifest = JSON.parse(readFileSync(process.argv[2], "utf8")) as Array<{
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file: string;
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count: number;
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diagPath: string;
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}>;
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const n = Number(process.argv[3]);
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if (!Number.isInteger(n) || n < 1) {
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console.error(`shard count must be a positive integer (got ${process.argv[3]})`);
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process.exit(1);
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}
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const outDir = process.argv[4] || "/tmp/clippy-loop/shards";
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mkdirSync(outDir, { recursive: true });
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const shards: (typeof manifest)[] = Array.from({ length: n }, () => []);
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manifest.forEach((m, i) => shards[i % n].push(m));
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for (let i = 0; i < n; i++) {
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const p = join(outDir, `shard-${i}.json`);
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writeFileSync(p, JSON.stringify(shards[i]));
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const diags = shards[i].reduce((s, x) => s + x.count, 0);
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console.error(`shard-${i}: ${shards[i].length} files, ${diags} diags`);
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console.log(p);
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}
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