@enplug/scripts/bin/functions/createS3Client.js

Enplug scripts

const path = require('path');
const fs = require('fs');
const s3 = require('s3');
const chalk = require('chalk');
const rootPath = __dirname.split('node_modules')[0];

function getAwsPrivateFile() {
  const fileName = 'aws.private.json';
  let prefix = '';
  let file = null;
  let maxDepth = 2;
  do {
    file = path.resolve(rootPath, prefix + fileName);
    prefix += '../';
  } while (!fs.existsSync(file) && maxDepth--);

  return file;
}

function createS3Client(pkg) {
  let creds;
  const s3Options = Object.assign({}, pkg.config.aws.s3);
  const credsFile = getAwsPrivateFile();

  try {
    creds = JSON.parse(fs.readFileSync(credsFile, 'utf8'));
  } catch (e) {
    console.error(`Error finding/parsing ${chalk.default.cyan(credsFile)}`);
    return;
  }

  if (creds.accessKeyId == null || creds.secretAccessKey == null) {
    console.error(`Error could not fine accessKeyId or secretAccessKey in ${chalk.default.cyan(credsFile)} file.`);
    return;
  }

  Object.assign(s3Options, creds);

  // s3Options is what is used by the AWS SDK
  // See: http://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Config.html#constructor-property

  return s3.createClient({
    // default options
    maxAsyncS3: 20,
    s3RetryCount: 3,
    s3RetryDelay: 1000,
    multipartUploadThreshold: 20971520,
    multipartUploadSize: 15728640,
    cacheTTL: 0,
    s3Options
  });
}

module.exports = createS3Client;