Function initMetadata

tests/functional/aws-node-sdk/test/utils/init.js:41–57

(cb)

let metadataInit = false;

function initMetadata(cb) {
    const promise = (async () => {
        if (metadataInit) {
            return;
        }
        await new Promise((resolve, reject) => {
            metadata.setup(err => {
                if (err) {
                    return reject(err);
                }
                metadataInit = true;
                return resolve();
            });
        });
    })();
    return cb ? promise.then(() => cb(), cb) : promise;
}

function getMetadata(bucketName, objectName, versionId, cb) {
    const promise = new Promise((resolve, reject) => metadata.getObjectMD(