config-builder.js

/* eslint no-console: 0 */
// This needs to be written as ES5 because it is consumed by Webpack too to assess the config
const dotenv = require('dotenv')
const path = require('path')

const unlockEnv = process.env.UNLOCK_ENV || 'dev'

dotenv.config({
  path: path.resolve(__dirname, '..', `.env.${unlockEnv}.local`),
})

// Remember to add mapping in webpack for all environment variables below
const requiredVariables = [
  'SMTP_HOST',
  'SMTP_USERNAME',
  'SMTP_PASSWORD',
  'BASE64_WEDLOCKS_PRIVATE_KEY',
]
requiredVariables.forEach((envVar) => {
  if (!process.env[envVar]) {
    if (['test'].indexOf(unlockEnv) === -1) {
      console.error(`Environment variable ${envVar} is required.`)
    }
    if (['dev', 'test'].indexOf(unlockEnv) === -1) {
      process.exit(1)
    }
  }
})

let wedlocksPrivateKey
if (process.env.BASE64_WEDLOCKS_PRIVATE_KEY) {
  // This env variable is passed as base 64 to comply with the multiline reco by circleci:
  // https://circleci.com/docs/2.0/env-vars/#encoding-multi-line-environment-variables
  wedlocksPrivateKey = Buffer.from(
    process.env.BASE64_WEDLOCKS_PRIVATE_KEY,
    'base64'
  ).toString('utf-8')
}

console.log(
  `module.exports = ${JSON.stringify({
    host: process.env.SMTP_HOST,
    port: process.env.SMTP_PORT || 587,
    secure: false,
    auth: {
      user: process.env.SMTP_USERNAME,
      pass: process.env.SMTP_PASSWORD,
    },
    unlockEnv,
    wedlocksPrivateKey,
    sender: process.env.SMTP_FROM_ADDRESS || 'hello@unlock-protocol.com',
  })}`
)