RP Minifier

minifier.js

//
// OPTIONS
//
const RP_PATH = '/home/bemacized/Downloads/tomo';
const OUTPUT_NAME= 'dist.zip';
// FOR OPTIONS SEE DOCS AT https://github.com/imagemin/imagemin-pngquant
const PNG_MINIFY_OPTIONS = {
    quality: '65-80'
};

//
// IMPORTS
//

const imagemin = require('imagemin');
const imageminPngquant = require('imagemin-pngquant');
const Promise = require('bluebird').Promise;
const fs = require('fs');
const glob = Promise.promisify(require('glob'));
const readFile = Promise.promisify(fs.readFile);
const writeFile = require('writefile');
const exec = Promise.promisify(require('child_process').exec);
const rimraf = Promise.promisify(require('rimraf'));

//
// EXEC
//

(async () => {
    // Obtain file references
    const pngFiles = await glob(RP_PATH + '/**/*.png', {});
    const jsonFiles = await glob(RP_PATH + '/**/*.json', {});
    const otherFiles = await glob(RP_PATH + '/**/*.!(png|json)', {});
    // Minify PNGs
    await Promise.all(
        pngFiles.map(async (pngPath) => {
            const destination = pngPath.substring(0, pngPath.lastIndexOf('/')).replace(RP_PATH, 'tmp');
            await imagemin([pngPath], destination, {
                plugins: [imageminPngquant(PNG_MINIFY_OPTIONS)]
            });
            console.log('MINIFIED', pngPath.replace(RP_PATH, ''))
        })
    );
    // Minify json
    await Promise.all(
        jsonFiles.map(async (jsonPath) => {
            const json = JSON.parse(await readFile(jsonPath, 'utf8'));
            const destination = jsonPath.replace(RP_PATH, 'tmp');
            await writeFile(destination, JSON.stringify(json));
            console.log('MINIFIED', jsonPath.replace(RP_PATH, ''));
        })
    );
    // Copy over additional files
    await Promise.all(
        otherFiles.map(async (otherPath) => {
            const destination = otherPath.replace(RP_PATH, 'tmp');
            await writeFile(destination, fs.createReadStream(otherPath));
            console.log('COPIED', otherPath.replace('RP_PATH', ''))
        })
    );
    // ZIP
    await exec(`cd tmp && zip -r -9 ../${OUTPUT_NAME} * && cd ..`);
    console.log('GENERATED', OUTPUT_NAME);
    // Remove tmp
    await rimraf('tmp');
    console.log('CLEANUP COMPLETE');
})();