@arc-fusion/cli/templates/2.0/links.js

CLI for running Arc Fusion on your local machine

'use strict'

const fs = require('fs')
const path = require('path')
const { promisify } = require('util')

const lstat = promisify(fs.lstat)
const realpath = promisify(fs.realpath)
const glob = promisify(require('glob'))

const isLink = async (filePath) => {
  const stats = await lstat(filePath)
  return stats.isSymbolicLink()
}

async function getLinks (globPattern) {
  // the glob module requires forward slashes, even on Windows
  const entries = await glob(globPattern.replace(/\\/g, '/'))
  const links = await Promise.all(
    entries
      .map(async (entry) =>
        (await isLink(entry))
          ? entry
          : null
      )
  )
  return links.filter((entry) => entry)
}

async function getLinkedModules (projectRoot) {
  const modulesRoot = path.resolve(projectRoot, 'node_modules')
  const links = await Promise.all(
    [].concat(
      await getLinks(path.join(modulesRoot, '*/')),
      await getLinks(path.join(modulesRoot, '@*', '*/'))
    )
      .map(async (link) => ({
        [path.relative(modulesRoot, link)]: await realpath(link)
      }))
  )

  return Object.assign({}, ...links)
}

module.exports = getLinkedModules

if (module === require.main) {
  getLinkedModules('.').then(console.log)
}