Function main

scripts/fetchLicenses.mjs:130–199

()

}

async function main() {
    const args = process.argv.slice(2);
    const outputIdx = args.indexOf("--output");
    const outputFile = outputIdx !== -1 && args[outputIdx + 1]
        ? args[outputIdx + 1]
        : OUTPUT_DEFAULT;

    const lockfilePath = path.join(process.cwd(), "yarn.lock");
    if (!fs.existsSync(lockfilePath)) {
        console.error("yarn.lock not found in current directory. Run `yarn install` first.");
        process.exit(1);
    }

    console.log("1. Parsing yarn.lock...");
    const resolutions = parseYarnLock(lockfilePath);
    console.log(`   Found ${resolutions.length} external package entries`);

    // Deduplicate by name+version
    const uniquePackages = new Map();
    for (const resolution of resolutions) {
        const parsed = parseResolution(resolution);
        if (!parsed) continue;
        const key = `${parsed.name}@${parsed.version}`;
        if (!uniquePackages.has(key)) {
            uniquePackages.set(key, parsed);
        }
    }

    const packages = Array.from(uniquePackages.values());
    console.log(`   ${packages.length} unique packages after deduplication`);

    console.log("\n2. Fetching license information from npm registry...");
    const results = await processInBatches(packages, CONCURRENCY, (pkg) =>
        fetchLicense(pkg.name, pkg.version)
    );

    // Apply license overrides from npmLicenseMap.json
    const licenseMap = loadLicenseMap();
    const overrideCount = applyLicenseMap(results, licenseMap);
    if (overrideCount > 0) {
        console.log(`\n   Applied ${overrideCount} license override(s) from npmLicenseMap.json`);
    }

    // Sort by package name for stable output
    results.sort((a, b) => a.name.localeCompare(b.name) || a.version.localeCompare(b.version));

    const output = {
        generatedAt: new Date().toISOString(),
        totalPackages: results.length,
        packages: results,
    };

    const outputPath = path.join(process.cwd(), outputFile);
    fs.writeFileSync(outputPath, JSON.stringify(output, null, 2) + "\n");
    console.log(`\n3. Results written to ${outputFile}`);

    // Print summary
    const licenseCounts = {};