server/helpers/image-utils.ts

   1 import 'multer'
   2 import { readFile, remove } from 'fs-extra'
   3 import { logger } from './logger'
   4 const Jimp = require('jimp')
   5
   6 async function processImage (
   7   path: string,
   8   destination: string,
   9   newSize: { width: number, height: number },
  10   keepOriginal = false
  11 ) {
  12   if (path === destination) {
  13     throw new Error('Jimp needs an input path different that the output path.')
  14   }
  15
  16   logger.debug('Processing image %s to %s.', path, destination)
  17
  18   // Avoid sharp cache
  19   const buf = await readFile(path)
  20   const jimpInstance = await Jimp.read(buf)
  21
  22   await remove(destination)
  23
  24   await jimpInstance
  25     .resize(newSize.width, newSize.height)
  26     .quality(80)
  27     .writeAsync(destination)
  28
  29   if (keepOriginal !== true) await remove(path)
  30 }
  31
  32 // ---------------------------------------------------------------------------
  33
  34 export {
  35   processImage
  36 }