@arc-fusion/cli/bin/utils/promises.js

CLI for running Arc Fusion on your local machine

'use strict'

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

const exec = promisify(childProcess.exec)

const access = promisify(fs.access)
const copyFile = promisify(fs.copyFile)
const mkdir = promisify(fs.mkdir)
const readdir = promisify(fs.readdir)
const readFile = promisify(fs.readFile)
const stat = promisify(fs.stat)
const writeFile = promisify(fs.writeFile)

async function mkdirp (dir) {
  try {
    const parent = path.dirname(dir)
    await (
      (parent && parent !== dir)
        ? mkdirp(parent)
        : Promise.resolve()
    )
    await mkdir(dir)
  } catch (e) {}
}

async function dirExists (dirPath) {
  try {
    await access(dirPath.replace(/\/*$/, '/'))
    return true
  } catch (_) {
    return false
  }
}

async function fileExists (filePath) {
  try {
    await access(filePath)
    return true
  } catch (_) {
    return false
  }
}

async function gentleCopy (src, dest) {
  await mkdirp(path.dirname(dest))
  if (!(await fileExists(dest))) {
    return copyFile(src, dest)
  }
}

async function touch (filePath) {
  await mkdirp(path.dirname(filePath))
  if (!(await fileExists(filePath))) {
    return writeFile(filePath, '')
  }
}

module.exports = {
  exec,
  dirExists,
  fileExists,
  gentleCopy,
  mkdirp,
  readdir,
  readFile,
  stat,
  touch,
  writeFile
}