@clinic/clinic-common/lib/source-check.js

Shared parts between the Clinic.js suite

'use strict'

const fs = require('fs')

function checkForTranspiledCode (filename) {
  const readFile = fs.readFileSync(filename, 'utf8')
  const regex = /function\s+(\w+)/g
  let matchedObj
  let isTranspiled = false

  // Check for a source map
  if (readFile.includes('//# sourceMappingURL=')) {
    isTranspiled = true
  } else {
    isTranspiled = true
    // Loop through results and check length of fn name
    while ((matchedObj = regex.exec(readFile)) !== null) {
      if (matchedObj[1].length > 3) {
        isTranspiled = false
      }
    }
  }
  return isTranspiled
}

module.exports = checkForTranspiledCode