Quick and dirty exif created at time to file modification time copy

copy-exif-time.js

const fs = require('fs')
const Promise = require('bluebird')
const moment = require('moment')
const { promisify } = require('util')
const touch = promisify(require('touch'))
var getExifData = promisify(require('exif').ExifImage)

const readdir = promisify(fs.readdir)
const stat = promisify(fs.stat)

async function main() {
  const files = await readdir('./')
  const images = files.filter(file => /\.jpg/.test(file))
  const filesWithDate = await Promise.map(images, async (fileName) => {
    const data = await getExifData(fileName)
    const statData = await stat(fileName)
    if (!data.exif.CreateDate) {
      console.log(fileName, 'has a bad exif created Date')
      return
    }
    const exifCreatedAt = moment(data.exif.CreateDate, 'YYYY:MM:DD HH:mm:ss').toDate()
    const mtime = moment(statData.mtime)
    const wrong = !mtime.isSame(exifCreatedAt)
    const retval = { fileName, exifCreatedAt, exifCreatedAtRaw: data.exif.CreateDate, mtime, wrong }
    if (wrong) {
      console.log(retval)
      await touch(fileName, { time: exifCreatedAt })
    }
    return retval
  }, { concurrency: 5 })

  return 'DONE!'
}


main().then((data) => {
  console.log(data)
  process.exit(0)
}, err => {
  console.error(err)
  process.exit(1)
})