server/helpers/image-utils.ts

   1 import { extname } from 'path'
   2 import { remove, rename } from 'fs-extra'
   3 import { convertWebPToJPG, processGIF } from './ffmpeg-utils'
   4 import { logger } from './logger'
   5
   6 const Jimp = require('jimp')
   7
   8 async function processImage (
   9   path: string,
  10   destination: string,
  11   newSize: { width: number, height: number },
  12   keepOriginal = false
  13 ) {
  14   const extension = extname(path)
  15
  16   // Use FFmpeg to process GIF
  17   if (extension === '.gif') {
  18     return processGIF(path, destination, newSize, keepOriginal)
  19   }
  20
  21   if (path === destination) {
  22     throw new Error('Jimp needs an input path different that the output path.')
  23   }
  24
  25   logger.debug('Processing image %s to %s.', path, destination)
  26
  27   let jimpInstance: any
  28
  29   try {
  30     jimpInstance = await Jimp.read(path)
  31   } catch (err) {
  32     logger.debug('Cannot read %s with jimp. Try to convert the image using ffmpeg first.', path, { err })
  33
  34     const newName = path + '.jpg'
  35     await convertWebPToJPG(path, newName)
  36     await rename(newName, path)
  37
  38     jimpInstance = await Jimp.read(path)
  39   }
  40
  41   await remove(destination)
  42
  43   await jimpInstance
  44     .resize(newSize.width, newSize.height)
  45     .quality(80)
  46     .writeAsync(destination)
  47
  48   if (keepOriginal !== true) await remove(path)
  49 }
  50
  51 // ---------------------------------------------------------------------------
  52
  53 export {
  54   processImage
  55 }