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Gulp 4, ES6 gulpfile example
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// Gulp module imports | |
import {src, dest, watch, parallel, series} from 'gulp'; | |
import del from 'del'; | |
import livereload from 'gulp-livereload'; | |
import sass from 'gulp-sass'; | |
import minifycss from 'gulp-minify-css'; | |
import jade from 'gulp-jade'; | |
import gulpif from 'gulp-if'; | |
import babel from 'gulp-babel'; | |
import yargs from 'yargs'; | |
// Build Directories | |
// ---- | |
const dirs = { | |
src: 'src', | |
dest: 'build' | |
}; | |
// File Sources | |
// ---- | |
const sources = { | |
styles: `${dirs.src}/**/*.scss`, | |
views: `${dirs.src}/**/*.jade`, | |
scripts: `${dirs.src}/**/*.js` | |
}; | |
// Recognise `--production` argument | |
const argv = yargs.argv; | |
const production = !!argv.production; | |
// Main Tasks | |
// ---- | |
// Styles | |
export const buildStyles = () => src(sources.styles) | |
.pipe(sass.sync().on('error', sass.logError)) | |
.pipe(gulpif(production, minifycss())) | |
.pipe(dest(dirs.dest)) | |
.pipe(livereload()); | |
// Views | |
export const buildViews = () => src(sources.views) | |
.pipe(jade()) | |
.pipe(dest(dirs.dest)) | |
.pipe(livereload()); | |
// Scripts | |
export const buildScripts = () => src(sources.scripts) | |
.pipe(babel({ presets: ['es2015'] })) | |
.pipe(dest(dirs.dest)) | |
.pipe(livereload()); | |
// Clean | |
export const clean = () => del(['build']); | |
// Watch Task | |
export const devWatch = () => { | |
livereload.listen(); | |
watch(sources.styles, buildStyles); | |
watch(sources.views, buildViews); | |
watch(sources.scripts, buildScripts); | |
}; | |
// Development Task | |
export const dev = series(clean, parallel(buildStyles, buildViews, buildScripts), devWatch); | |
// Serve Task | |
export const build = series(clean, parallel(buildStyles, buildViews, buildScripts)); | |
// Default task | |
export default dev; |
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