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import fs from 'node:fs';
import { CondensedGraph } from '../src/core/CondensedGraph.js';
import { ShardedSnapshotBuilder } from '../src/core/shards/ShardedSnapshotBuilder.js';
function parseArgs(argv) {
const args = new Map();
for (let i = 2; i < argv.length; i++) {
const value = argv[i];
if (!value.startsWith('--')) continue;
const [key, inline] = value.slice(2).split('=');
if (inline !== undefined) {
args.set(key, inline);
continue;
}
const next = argv[i + 1];
if (next && !next.startsWith('--')) {
args.set(key, next);
i++;
} else {
args.set(key, true);
}
}
return args;
}
const args = parseArgs(process.argv);
const input = args.get('input');
const output = args.get('output') || 'tmp/shards';
const bucketSize = Number(args.get('bucket') || 4096);
const directions = args.get('directions')
? String(args.get('directions')).split(',')
: ['out', 'in'];
if (!input) {
console.error('Usage: node new-eval/sharded-snapshot-build.js --input <condensed.bin> --output <dir> [--bucket 4096] [--directions out,in]');
process.exit(1);
}
const buffer = fs.readFileSync(input);
const graph = CondensedGraph.fromBinary(buffer.buffer.slice(buffer.byteOffset, buffer.byteOffset + buffer.byteLength));
const builder = new ShardedSnapshotBuilder({ bucketSize, includeDirections: directions });
const manifest = builder.build(graph, output);
console.log(`Shards written to ${output}`);
console.log(`Manifest shards: ${manifest.shards.length}`);