async function getRatJar()

in src/audit-license-headers.js [94:114]

• 11 lines of code
• 2 McCabe index (conditional complexity)

async function getRatJar () {
    const RAT_ID = 'apache-rat-0.12';
    const RAT_URL = `https://archive.apache.org/dist/creadur/${RAT_ID}/${RAT_ID}-bin.tar.gz`;

    const cohoRoot = path.resolve(__dirname, '..');
    const ratJarPath = path.join(cohoRoot, RAT_ID, RAT_ID + '.jar');

    if (!fs.existsSync(ratJarPath)) {
        console.log('RAT tool not found, downloading to: ' + ratJarPath);

        const unzip = new DecompressionStream('gzip');
        await fetch(RAT_URL)
            .then((resp) => resp.body.pipeThrough(unzip))
            .then((stream) => Readable.fromWeb(stream))
            .then((stream) => pipeline(stream, tar.extract(cohoRoot)))
            .catch(err => {
                throw new Error('Failed to get RAT JAR:\n' + err.message);
            });
    }
    return ratJarPath;
}