@absolunet/nwayo-workflow/tasks/assets.js

//-------------------------------------
//-- Assets
//-------------------------------------
'use strict';

// const debug = require('gulp-debug');
const gulp         = require('gulp');
const gm           = require('gulp-gm');
const imagemin     = require('gulp-imagemin');
const rename       = require('gulp-rename');
const { terminal } = require('@absolunet/terminal');
const flow         = require('~/helpers/flow');
const paths        = require('~/helpers/paths');
const toolbox      = require('~/helpers/toolbox');
const util         = require('~/helpers/util');


module.exports = () => {

	//-- Fonts copy
	flow.createTask('assets-fonts', () => {
		return util.assetsProcess(paths.files.fonts, (stream) => {
			return stream
				.pipe(toolbox.plumber())
				.pipe(rename(util.assetsRename()))
			;
		});
	});


	//-- Images optimization
	flow.createTask('assets-images-optimization', () => {
		return util.assetsProcess(paths.files.images, (stream) => {
			return stream
				.pipe(toolbox.plumber())
				.pipe(imagemin())
				.pipe(rename(util.assetsRename()))
			;
		});
	});


	//-- High density images generation
	flow.createTask('assets-images-highdensity', () => {
		return util.assetsProcess(paths.files.images2x, (stream) => {
			return stream
				.pipe(toolbox.plumber())
				.pipe(gm((gmfile, done) => {
					gmfile.identify((error, info) => {
						if (error) {
							terminal.error(error);
						}
						toolbox.gmOptimization(gmfile.resize('50%', '50%'), info);
						done(null, gmfile);
					});
				}))

				.pipe(imagemin())

				.pipe(rename(util.assetsRename((filename) => { return filename.slice(0, -3); })))
			;
		});
	});


	//-- Raw copy
	flow.createTask('assets-raw', () => {
		return util.assetsProcess(paths.files.raw, (stream) => {
			return stream
				.pipe(toolbox.plumber())
				.pipe(rename(util.assetsRename()))
			;
		});
	});






	//-- Rebuild images
	flow.createSequence('assets-images', gulp.parallel('assets-images-optimization', 'assets-images-highdensity'), {
		cleanBundle: ({ bundle }) => {
			return [`${paths.directory.root}/${bundle.output.build}/${paths.build.images}`];
		}
	});


	//-- Rebuild
	flow.createSequence('assets', gulp.parallel('assets-fonts', 'assets-images', 'assets-raw'), {
		cleanBundle: ({ bundle }) => {
			return [
				`${paths.directory.root}/${bundle.output.build}/${paths.build.fonts}`,
				`${paths.directory.root}/${bundle.output.build}/${paths.build.images}`,
				`${paths.directory.root}/${bundle.output.build}/${paths.build.raw}`
			];
		}
	});

};