Develop Reference

GULP Browsersync does not start

I have a gulpfile.js with this code:
var gulp = require('gulp'),
less = require('gulp-less'),
path_less = require('path'),
browserSync = require('browser-sync').create();
var path = {...paths...};
gulp.task('less', function(done){
gulp.src(path.src.def + path.src.less + '*.less')
.pipe(less({paths: [ path_less.join(__dirname, 'less', 'includes') ]}))
.pipe(gulp.dest(path.dev.def + path.dev.css))
.pipe(browserSync.stream());
done();
});
gulp.task('serve', gulp.series('less'), function(done){
browserSync.init({
server: './',
proxy : 'belaz.dev'
});
gulp.watch(path.src.def + path.src.less + '*.less', gulp.series('less'))
gulp.watch(path.dev.def + path.dev.css + '*.css').on('change', browserSync.reload());
done();
});
gulp.task('default', gulp.series('serve'), function(done){
done();
});
When i run Gulp browsersync doesn't do anything - all tasks starts, ends and nothing happens
How or why? And how i could fix it

You have a couple of unrelated problems. This
gulp.task('serve', gulp.series('less'), function(done){ // gulp v3 syntax, three arguments
change to:
gulp.task('serve', gulp.series('less', function(done){ // gulp v4 syntax, two arguments
and then when I run the fixed version I get this error:
Invalid config. You cannot specify both server & proxy options.
because of your
browserSync.init({
server: './', // can't have both a server and proxy option apparently
proxy : 'belaz.dev'
});

BrowserSync not trigger when watching .html files

I am using Gulp to compile and minify my SASS. This works fine, but I want to extend the automation by using BrowserSync.
I've followed the instructions on a few tutorial sites but cannot get it working - the browser does not refresh when I update either my .scss or .html files, not do any errors appear on the Terminal.
My gulpfile.js is as such. Would anyone know why browserSync fails to run?
(ps running gulp browserSync does sucessfully open the browser window and index file with http://localhost:3000/ but there is no automatic refreshing).
const gulp = require('gulp');
const sass = require('gulp-sass');
const cssnano = require('gulp-cssnano');
const browserSync = require('browser-sync').create();
// Normal .scss compilation
gulp.task('sass', function(){
return gulp.src('scss/main.scss')
.pipe(sass())
.pipe(gulp.dest('dist/css'))
});
// Minifys .css, is meant to reload browser
gulp.task('mini-css', function() {
return gulp.src('dist/css/main.css')
.pipe(cssnano())
.pipe(gulp.dest('dist/css'))
.pipe(browserSync.reload({
stream: true
}));
});
// Do both of the above
gulp.task('do-sass', gulp.series('sass', 'mini-css'))
gulp.task('watch', function(){
gulp.watch('scss/**/*.scss', gulp.series('do-sass'));
gulp.watch("*.html").on('change', browserSync.reload);
});
gulp.task('browserSync', function() {
browserSync.init({
server: {
baseDir: './'
},
})
})

Your watch task should be your default task. Try to put the browserSync.init() in the watch task und then start your gulp with gulp watch
const gulp = require('gulp');
const sass = require('gulp-sass');
const cssnano = require('gulp-cssnano');
const browserSync = require('browser-sync').create();
// Normal .scss compilation
gulp.task('sass', function(){
return gulp.src('scss/main.scss')
.pipe(sass())
.pipe(gulp.dest('dist/css'))
});
// Minifys .css, is meant to reload browser
gulp.task('mini-css', function() {
return gulp.src('dist/css/main.css')
.pipe(cssnano())
.pipe(gulp.dest('dist/css'))
.pipe(browserSync.reload({
stream: true
}));
});
// Do both of the above
gulp.task('do-sass', gulp.series('sass', 'mini-css'))
gulp.task('watch', function(){
browserSync.init({
server: {
baseDir: './'
}
});
gulp.watch('scss/**/*.scss', gulp.series('do-sass'));
gulp.watch("*.html").on('change', browserSync.reload);
});

Browsersync + gulp-watch not working

In my project i use gulp + browsersync. After update gulp v.4.0.0., browsersync not working and my styles not compiled when watch run (only after in manual restart gulp watch).
This is my gulpfile.js:
var gulp = require('gulp'),
sass = require('gulp-sass'),
browserSync = require('browser-sync'),
concat = require('gulp-concat'),
uglify = require('gulp-uglifyjs'),
cssnano = require('gulp-cssnano'),
rename = require('gulp-rename'),
del = require('del'),
imagemin = require('gulp-imagemin'),
pngquant = require('imagemin-pngquant'),
autoprefixer = require('gulp-autoprefixer');
gulp.task('sass', function(){
return gulp.src('app/scss/**/*.scss')
.pipe(sass())
.pipe(autoprefixer(['last 15 versions', '> 1%'], {cascade: true}))
.pipe(cssnano())
.pipe(rename({suffix: '.min'}))
.pipe(gulp.dest('css'))
.pipe(browserSync.reload({stream: true}))
});
gulp.task('css-libs', gulp.parallel('sass'), function(){
return gulp.src('app/css/main.css')
.pipe(cssnano())
.pipe(rename({suffix: '.min'}))
.pipe(gulp.dest('app/css'));
});
gulp.task('browser-sync', function(){
browserSync({
server: {
//baseDir: 'app'
baseDir: './'
},
notify:false
})
});
gulp.task('watch', gulp.parallel('browser-sync', 'css-libs'), function(){
gulp.watch('app/scss/*.scss', ['sass']);
gulp.watch('*.html', browserSync.reload);
});
How to fix it?
UPD
This is my package.json
Gulp-watch not working when i change scss file.

I believe your 'watch' task should be rewritten like so:
gulp.task('browser-sync', function(){
// note the .init
browserSync.init({
server: {
//baseDir: 'app'
baseDir: './'
},
notify:false
})
});
gulp.task('watch', gulp.parallel('browser-sync', 'css-libs', function(done){
// change in the previous line and the following line
gulp.watch('app/scss/*.scss', gulp.series('sass'));
gulp.watch('*.html', browserSync.reload);
done();
}));
so that the function call with the watches is part of the gulp.parallel call. See the parallel tasks documentation and gulp.task signature.
gulp.task('default', gulp.parallel('one', 'two', function(done) {
// do more stuff
done();
}));

Uncaught ReferenceError: require is not defined with babel + browserify

I get this error:
Uncaught ReferenceError: require is not defined
I know that in the browser you can not use require API, just trying to make it possible with browserify or requirejs or whatelse but it doesn't work in any way.
This is my gulpfile
var gulp = require('gulp'),
plumber = require('gulp-plumber'),
rename = require('gulp-rename');
var autoprefixer = require('gulp-autoprefixer');
var babel = require('gulp-babel');
var browserify = require('gulp-browserify');
var concat = require('gulp-concat');
var uglify = require('gulp-uglify');
var imagemin = require('gulp-imagemin'),
cache = require('gulp-cache');
var minifycss = require('gulp-minify-css');
var sass = require('gulp-sass');
var browserSync = require('browser-sync');
gulp.task('browser-sync', function() {
browserSync({
server: {
baseDir: "./"
}
});
});
gulp.task('bs-reload', function () {
browserSync.reload();
});
gulp.task('images', function(){
gulp.src('src/images/**/*')
.pipe(cache(imagemin({ optimizationLevel: 3, progressive: true, interlaced: true })))
.pipe(gulp.dest('dist/images/'));
});
gulp.task('styles', function(){
gulp.src(['src/styles/**/*.scss'])
.pipe(plumber({
errorHandler: function (error) {
console.log(error.message);
this.emit('end');
}}))
.pipe(sass())
.pipe(autoprefixer('last 2 versions'))
.pipe(gulp.dest('dist/styles/'))
.pipe(rename({suffix: '.min'}))
.pipe(minifycss())
.pipe(gulp.dest('dist/styles/'))
.pipe(browserSync.reload({stream:true}))
});
gulp.task('scripts', function(){
return gulp.src('src/scripts/**/*.js')
.pipe(plumber({
errorHandler: function (error) {
console.log(error.message);
this.emit('end');
}}))
.pipe(concat('main.js'))
.pipe(babel())
.pipe(browserify())
.pipe(gulp.dest('dist/scripts/'))
.pipe(rename({suffix: '.min'}))
.pipe(uglify())
.pipe(gulp.dest('dist/scripts/'))
.pipe(browserSync.reload({stream:true}))
});
gulp.task('default', ['browser-sync'], function(){
gulp.watch("src/styles/**/*.scss", ['styles']);
gulp.watch("src/scripts/**/*.js", ['scripts']);
gulp.watch("*.html", ['bs-reload']);
});
and this is my main.js, just an import of a plugin anime.js
import anime from 'animejs'
Also tried with requireJs but it seems a bit hard to integrate it in my gulpfile, also webpack seems to be hard code for me.

How to synchronize gulp from local to live website (server)

Gulp setup is working fine for me in local.
But i want like if i change files in local then it will build and uploaded to live server automatically (minified css and js/compiled css/js).
I have tried gulp-rsync, vinyl-ftp but couldn't succeed may be i don't know how to use above packages.
Here is a my gulp file.
var gulp = require('gulp');
var sass = require('gulp-sass');
var browserSync = require('browser-sync');
var useref = require('gulp-useref');
var uglify = require('gulp-uglify');
var gulpIf = require('gulp-if');
var cssnano = require('gulp-cssnano');
var imagemin = require('gulp-imagemin');
var cache = require('gulp-cache');
var del = require('del');
var runSequence = require('run-sequence');
// Development Tasks
// -----------------
// Start browserSync server
gulp.task('browserSync', function() {
browserSync({
server: {
baseDir: 'app'
}
})
})
gulp.task('sass', function() {
return gulp.src('app/scss/**/*.scss') // Gets all files ending with .scss in app/scss and children dirs
.pipe(sass().on('error', sass.logError)) // Passes it through a gulp-sass, log errors to console
.pipe(gulp.dest('app/css')) // Outputs it in the css folder
.pipe(browserSync.reload({ // Reloading with Browser Sync
stream: true
}));
})
// Watchers
gulp.task('watch', function() {
gulp.watch('app/scss/**/*.scss', ['sass']);
gulp.watch('app/*.html', browserSync.reload);
gulp.watch('app/js/**/*.js', browserSync.reload);
})
// Optimization Tasks
// ------------------
// Optimizing CSS and JavaScript
gulp.task('useref', function() {
return gulp.src('app/*.html')
.pipe(useref())
.pipe(gulpIf('*.js', uglify()))
.pipe(gulpIf('*.css', cssnano()))
.pipe(gulp.dest('dist'));
});
// Optimizing Images
gulp.task('images', function() {
return gulp.src('app/images/**/*.+(png|jpg|jpeg|gif|svg)')
// Caching images that ran through imagemin
.pipe(cache(imagemin({
interlaced: true,
})))
.pipe(gulp.dest('dist/images'))
});
// Copying fonts
gulp.task('fonts', function() {
return gulp.src('app/fonts/**/*')
.pipe(gulp.dest('dist/fonts'))
})
// Cleaning
gulp.task('clean', function() {
return del.sync('dist').then(function(cb) {
return cache.clearAll(cb);
});
})
gulp.task('clean:dist', function() {
return del.sync(['dist/**/*', '!dist/images', '!dist/images/**/*']);
});
// Build Sequences
// ---------------
gulp.task('default', function(callback) {
runSequence(['sass', 'browserSync'], 'watch',
callback
)
})
gulp.task('build', function(callback) {
runSequence(
'clean:dist',
'sass',
['useref', 'images', 'fonts'],
callback
)
})
And here is a my folder structure.
This is main folder
It's a development folder
And this one is production folder in which all files are build.