gulpfile.js

// --------------------------------------------------------------------
// Declare Variables
// --------------------------------------------------------------------

const gulp    = require('gulp'),
      argv    = require('yargs').argv,
      del     = require('del'),
      browserSync = require('browser-sync'),
      validTags = ['major', 'minor', 'patch'],
      config  = {
              flags: {
                isDist: argv.prod ? true : false,
                docs: argv.docs ? true : false,
                highlight: argv.highlight ? true : false,
                rebuildShowcase: argv.rebuildShowcase ? true : false,
                minify: argv.nomin ? false : true,
                buildAll: argv.buildall ? true : false,
                version: validTags.includes(argv.updateType) ? argv.updateType : false
              },
            src: {
                html: 'src/**/*.html',
                sass: 'src/scss/all.scss',
                nunjucks_templates: 'src/**/*.+(html|njk)',
                sass_docs: 'src/scss/docs/all.scss',
                js_docs: 'src/docs/**/*.js',
                showcase_screenshots_dir: 'src/screenshots/',
                showcase_screenshots: 'src/screenshots/*.jpg'
            },
            dist: {
                html: 'dist',
                css: 'dist',
                js: 'dist',
                min_css: 'boba.min.css',
                min_css_lite: 'boba-lite.min.css',
                min_css_extended: 'boba-extended.min.css',
                min_css_docs: 'documentation.min.css',
                min_js_docs: 'documentation.min.js',
                showcase_screenshots: 'dist/showcase'
            },
            watch: {
              sass: 'src/scss/**/*.scss', 
              showcase_data_file: 'showcaseData.js'
            },
            data: {
                showcase: require('./showcaseData').getWebsiteList(),
            }
        };

// --------------------------------------------------------------------
// Loader Function
// --------------------------------------------------------------------

function getTask(task) {
    return require('./gulp_tasks/' + task)(gulp, config);
}

// --------------------------------------------------------------------
// Define Tasks
// --------------------------------------------------------------------

gulp.task('sass', getTask('sass'));
gulp.task('nunjucks', getTask('nunjucks'));
gulp.task('scripts', getTask('scripts'));
gulp.task('showcase', getTask('showcase'));

// Wait for nunjucks to finish before reloading browser
gulp.task('nunjucks-reload', gulp.series(['nunjucks']), done => {
    browserSync.reload();
    done();
});

// --------------------------------------------------------------------
// Extra Task: Clean
// --------------------------------------------------------------------

gulp.task('clean', () => {
    return del('dist');
});

// --------------------------------------------------------------------
// Extra Task: Watch
// --------------------------------------------------------------------

gulp.task('watch', gulp.series(function() {
    browserSync.init({
        server: './dist'
    });
    gulp.watch(config.watch.sass, gulp.series('sass'));
    gulp.watch(config.watch.showcase_data_file, gulp.series('showcase'));
    gulp.watch(config.src.nunjucks_templates, gulp.series('nunjucks-reload'));
    gulp.watch(config.src.js_docs, gulp.series('scripts'));
}));

// --------------------------------------------------------------------
// Task Runner: Build (Use --prod for production build)
// --------------------------------------------------------------------

gulp.task('build', gulp.series(
    'clean',
    gulp.parallel('sass', 'nunjucks', 'scripts', 'showcase')
));

// --------------------------------------------------------------------
// Task Runner: Default
// --------------------------------------------------------------------

gulp.task('default', gulp.series(
    'clean',
    gulp.parallel('sass', 'nunjucks', 'scripts', 'showcase'),
    'watch'
));