Find source (src) or another folder path going up the Hierarchy.

getSrcDir.js

const { join } = require('path')

export function getSrcDir (srcFolder = 'src', startPath = __dirname) {
  const parentPath = normalize(startPath + '/..')

  if (startPath === parentPath) {
    throw Error('Could not find folder.')
  }
  
  if (basename(startPath) === srcFolder) {
    return startPath
  }
  // (OPTIONAL) if this path contains srcFolder
  if (fs.existsSync(join(startPath, srcFolder))) {
    return join(startPath, srcFolder)
  }

  return getSrcDir(srcFolder, parentPath)
}