Set of gulp useful tasks

gulpfile.js

var gulp = require('gulp');
var gutil = require('gulp-util');
var concat = require('gulp-concat');
var sass = require('gulp-sass');
var minifyCss = require('gulp-minify-css');
var rename = require('gulp-rename');
var sh = require('shelljs');
var pump = require('pump');
var uglify = require('gulp-uglify');
var webserver = require('gulp-webserver');
var jshint = require('gulp-jshint');
var stylish = require('jshint-stylish');

var paths = {
    sass: ['./scss/*.scss', 'template/**/*.scss']
};

gulp.task('default', ['sass']);

/* Compile SASS */
gulp.task('sass', function(done) {
    gulp.src('./scss/orrasu.scss')
        .pipe(sass())
        .on('error', sass.logError)
        .pipe(gulp.dest('./css/'))
        .pipe(minifyCss({
            keepSpecialComments: 0
        }))
        .pipe(rename({ extname: '.min.css' }))
        .pipe(gulp.dest('./css/'))
        .on('end', done);
});

/* Watch Mode */
gulp.task('watch', ['sass'], function() {
    gulp.watch(paths.sass, ['sass']);
});


/* Prepare Main JS */
gulp.task('prepare-main-js', function() {
    gulp.src(['./js/*.js', './template/**/*.js'])
        .pipe(uglify())
        .pipe(gulp.dest('build/prepare'))
});

/* Build  Main JS */
gulp.task('build-main-js', function() {
    setTimeout(function() {
        gulp.src(['./build/prepare/**/*.js'])
            .pipe(concat('main.js'))
            .pipe(gulp.dest('build'))
    }, 3000);
});

/* Buil Main JS for Prod */
gulp.task('build-prod-js', ['build-main-js', 'prepare-main-js']);

/* Minify all js */
gulp.task('compress', function() {
    pump([gulp.src(['js/*.js', 'template/**/*.js']),
        uglify(),
        gulp.dest('prod')
    ]);
});


/* Live Reload  */
gulp.task('serve', function() {
    gulp.src(__dirname)
        .pipe(webserver({
            livereload: true,
            directoryListing: false,
            open: true
        }));
});

/* Custom Linter */
gulp.task('lint', function() {
    return gulp.src(['js/*.js', 'template/**/*.js'])
        .pipe(jshint())
        .pipe(jshint.reporter('jshint-stylish', { verbose: true }));
});