sharp-wordpress.js

const chalk = require('chalk')
const fs = require('fs-extra')
const sharp = require('sharp')
const globby = require('globby')

/**
 * Where to get dem piccies.
 */
const SITE_PATHS = [
  `web/app/uploads/**/*.jpg`,
  `web/app/uploads/**/*.jpeg`,
  `web/app/uploads/**/*.png`,
  `web/app/themes/sage/resources/assets/images/*.jpg`,
  `web/app/themes/sage/resources/assets/images/*.jpeg`,
  `web/app/themes/sage/resources/assets/images/*.png`,
]

/**
 * Image options
 */
const options = {
  png: {
    progressive: true,
    quality: 50,
    compressionLevel: 6,
  },
  jpeg: {
    progressive: true,
    quality: 50,
    optimizeScans: true,
  },
}

/**
 * Match file extensions
 * to sharp callables
 */
const EXTS = {
  jpg: 'jpeg',
  jpeg: 'jpeg',
  png: 'png',
}

/**
 * Process images
 */
globby.sync(SITE_PATHS).map(async image => {
  let hasErr

  const tmp = image.replace('web/', 'tmp/')
  const ext = EXTS[image.split('.')[image.split('.').length-1]]
  const opt = options[`${ext}`]

  /**
   * Copy to tmp
   */
  try {
    console.log(`Copying to: ${chalk.cyan(tmp)}`)
    await fs.copy(image, tmp)
  } catch (e) {
    hasErr = true

    console.error(chalk.red(e))
  }

  /**
   * Process image
   */
  if (!hasErr) {
    try {
      await sharp(tmp)[`${ext}`](opt).toFile(image)
      console.log(`Image processed: ${chalk.green(image)}`)
    } catch (e) {
      hasErr = true
      console.error(chalk.red(e))
    }
  }

  /**
   * Remove tmp
   */
  if (!hasErr) {
    try {
      await fs.remove(tmp)
    } catch (e) {
      hasErr = true
      console.error(chalk.red(e))
    }
  }
})