BuildAssetsMobile.js

#!/usr/bin/env node
/**
 * @description Image Generator for Splash Screen Mobile Development.
 * @author ri7nz <[email protected]>
 *
 * @todo - [ ] handle sharp if not available in environment.
 * @todo - [ ] add image dimensions list for iOS (.ipa) splash image.
 * @todo - [ ] handle image type
 * @todo - [ ] Send Your Request Feature
 * @todo - [ ] handle for potrait or landscape type
 **/

const sharp = require('sharp')
const ArgumentParser = require('argparse').ArgumentParser
const parser = new ArgumentParser({
  version: '0.0.1',
  addHelp: true,
  description:
    'Generator Image For Splash Screen Mobile Development Examples:' +
    ' BuildAssetsMobile.js --source a.png --platform android|ios' +
    ' --target $HOME',
})

parser.addArgument(['-s', '--source'], {
  action: 'store',
  type: 'string',
  help: '-s path/to/img.png',
  required: true,
})

parser.addArgument(['-t', '--target'], {
  action: 'store',
  type: 'string',
  help: '-t path/to/target/generate/img.png',
  defaultValue: './',
  required: true,
})

parser.addArgument(['-p', '--platform'], {
  action: 'store',
  type: 'string',
  help: '-p android|ios',
  required: true,
})

const args = parser.parseArgs()

const android = {
  ldpi: { x: 200, y: 320 },
  mdpi: { x: 320, y: 480 },
  hdpi: { x: 480, y: 800 },
  xhdpi: { x: 720, y: 1280 },
  xxhdpi: { x: 960, y: 1600 },
  xxxhdpi: { x: 1280, y: 1920 },
}

if (args.source) {
  let target = args.target.endsWith('/') ? args.target : args.target.concat('/')

  if (args.platform === 'android') {
    try {
      console.log(`Generate Image For Platform ${args.platform}`)
      console.log(`Image List:`)
      Object.keys(android).forEach(img => {
        const original = sharp(args.source)
        const toFile = `${target}${img}.png`
        original
          .resize(android[img].x, android[img].y)
          .toFile(toFile)
          .then(res => console.log(`- ${toFile}`))
      })
    } catch (e) {
      //handle error
      console.log('err', e)
    }
  }
}