webpack.config.js

var path = require('path')
const CopyPlugin = require('copy-webpack-plugin')
const webpack = require('webpack')
const fs = require('fs')
const SvgoInstance = require('svgo')

// Required to work from Node version 17+
// More info: https://github.com/webpack/webpack/issues/13572#issuecomment-923736472
const crypto = require('crypto')
const crypto_orig_createHash = crypto.createHash
crypto.createHash = algorithm =>
  crypto_orig_createHash(algorithm == 'md4' ? 'sha256' : algorithm)

const readManifest = () =>
  JSON.parse(fs.readFileSync(path.join(__dirname, './manifest.konnector')))

const svgo = new SvgoInstance({
  plugins: [
    {
      inlineStyles: { onlyMatchedOnce: false }
    }
  ]
})

let iconName
try {
  iconName = JSON.parse(fs.readFileSync('manifest.konnector', 'utf8')).icon
  // we run optimize only on SVG
  if (!iconName.match(/\.svg$/)) iconName = null
} catch (e) {
  // console.error(`Unable to read the icon path from manifest: ${e}`)
}
const appIconRX = iconName && new RegExp(`[^/]*/${iconName}`)

module.exports = {
  entry: {
    index: './src/index.js',
    onDeleteAccount: './src/onDeleteAccount.js'
  },
  target: 'node',
  mode: 'none',
  output: {
    path: path.join(__dirname, 'build'),
    filename: '[name].js'
  },
  plugins: [
    new CopyPlugin({
      patterns: [
        { from: 'manifest.konnector' },
        { from: 'package.json' },
        { from: 'README.md' },
        { from: 'assets', transform: optimizeSVGIcon },
        { from: '.travis.yml' },
        { from: 'LICENSE' }
      ]
    }),
    new webpack.DefinePlugin({
      __WEBPACK_PROVIDED_MANIFEST__: JSON.stringify(readManifest())
    })
  ],
  module: {
    // to ignore the warnings like :
    // WARNING in ../libs/node_modules/bindings/bindings.js 76:22-40
    // Critical dependency: the request of a dependency is an expression
    // Since we cannot change this dependency. I think it won't hide more important messages
    exprContextCritical: false,
    rules: [
      {
        test: /\.konnector$/,
        use: [{ loader: 'json-loader' }]
      }
    ]
  }
}

function optimizeSVGIcon(buffer, path) {
  if (appIconRX && path.match(appIconRX)) {
    return svgo.optimize(buffer).then(resp => resp.data)
  } else {
    return buffer
  }
}