completing bulk-decaffeinate and eslint --fix

decaffeinate_cleanup.js

#!/usr/bin/env node

// To be run after bulk-decaffeinate is done
// bulk-decaffeinate convert --num-workers 8 --config ~/bulk-decaffeinate.config.js
// cleanup(){
//    decaffeinate_cleanup.js "$@" && npm run lint-fix "$@"
// }
//
// cleanup **/*.js

const path = require('path')
const fs = require('fs')

const cleanupLine = line => {
  return line
  .replace(/^(\s+(?!(if|for))\w+) (\(.*\)) \{/g, '$1: $3 => {')
  .replace(/= function (\(.*\)) {/g, '= $1 => {')
  .replace(/=> function (\(.*\)) {/g, '=> $1 => {')
  .replace(/(^\s+if) (\(.*\)) { return\s?(.*) }/g, '$1 $2 return $3')
  .replace(/(^\s+if) (\(.*\)) { throw\s?(.*) }/g, '$1 $2 throw $3')
  .replace(/(^\s+else) { return\s?(.*) }/g, '$1 return $2')
  .replace(/(^\s+else) { throw\s?(.*) }/g, '$1 throw $2')
  .replace(/return done\(\)/, 'done()')
  .replace(/return it\(/, 'it(')
}

const update = file => {
  const current = fs.readFileSync(file).toString()

  const updated = current
    .split('\n')
    .map(cleanupLine)
    .join('\n')

  if (current !== updated) fs.writeFileSync(file, updated)
}

process.argv.slice(2)
.map(file => path.resolve(file))
.forEach(update)