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gulpfile.js
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gulpfile.js
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const {task, dest, src, watch, parallel} = require ("gulp"),
pug = require ("gulp-pug"),
sass = require ("gulp-sass"),
include = require ("gulp-include"),
imagemin = require ("gulp-imagemin"),
autoprefixer = require ("gulp-autoprefixer")
// Options sass, pug and more plugins
const opt = {
//pug: {pretty: true},
sass: {
outputStyle: "compressed"
}
}
const psrc = "src/"
const dsrc = "dist/"
const source = {
pug: psrc + "pug/*.pug",
sass: psrc + "sass/*.+(scss|sass)",
js: psrc + "js/*.js",
img: psrc + "images/*",
inc_sass: `${psrc}sass/inc/*.+(scss|sass)`,
inc_pug: `${psrc}pug/inc/*.pug`,
inc_js: `${psrc}js/inc/*.js`,
scriptJs: `${psrc}js/script.js`
}
const dist = {
html: dsrc,
css: dsrc + "css",
js: dsrc + "js",
img: dsrc + "img"
}
function includes_js (opt = {}) {
src (source.scriptJs)
.pipe ( include().on ("error", console.log) )
.pipe ( dest(dist.js) )
}
function compile_pug (opt = {}) {
src (source.pug)
.pipe ( pug(opt).on ("error", console.log) )
.pipe ( dest (dist.html) )
}
function compile_sass (opt = {}) {
src (source.sass)
.pipe ( sass(opt).on ("error", console.log) )
.pipe ( autoprefixer( opt.autoprefixer || {} ).on ("error", console.log) )
.pipe ( dest (dist.css) )
}
function compressImages (opt = {}) {
src (source.img)
.pipe (imagemin (opt).on ("error", console.log))
.pipe ( dest (dist.img) )
}
function only_compile (obj = {}) {
includes_js ( obj.incJs || {} )
compile_pug ( obj.pug || {} )
compile_sass (obj.sass || {})
compressImages ( obj.imagemin || {} )
}
function pwatch (obj) {
watch ([source.sass, source.inc_sass], async ev => { compile_sass ( obj.sass || {} ) })
watch ([source.pug, source.inc_pug], async ev => { compile_pug ( obj.pug || {} )})
watch ([source.js, source.inc_js], async ev => { includes_js ( obj.incJs || {} ) })
watch (source.img, async ev => { compressImages ( obj.incJs || {} ) })
}
function main (mode = false) {
// Mode false - only compile, mode true - watch
mode ? pwatch (opt) : only_compile (opt)
}
task ("include-js", async ev => {
includes_js ()
})
task ("imagemin", async ev => {
compressImages ()
})
task ("compile", async ev => {
main (false)
})
task ("default", async ev => {
main (true)
} )
/**
* Wrap gulp streams into fail-safe function for better error reporting
* Use:
* gulp.task('less', wrapPipe(function(success, error) {
* return gulp.src('less/*.less')
* .pipe(less().on('error', error))
* .pipe(gulp.dest('app/css'));
* }));
*/
function wrapPipe(taskFn) {
return function(done) {
var onSuccess = function() {
done();
};
var onError = function(err) {
done(err);
}
var outStream = taskFn(onSuccess, onError);
if(outStream && typeof outStream.on === 'function') {
outStream.on('end', onSuccess);
}
}
}