gulpfile.js

var gulp = require('gulp'),
    concat = require('gulp-concat'),
    connect = require('gulp-connect'),
    sass = require('gulp-sass'),
    minifyCss = require('gulp-minify-css'),
    rename = require('gulp-rename'),
    order = require('gulp-order'),
    clean = require('gulp-clean'),
    runSequence = require('run-sequence'),
    protractor = require('gulp-protractor').protractor,
    webdriverUpdate = require('gulp-protractor').webdriver_update,
    ngConstant = require('gulp-ng-constant'),

    paths = {
        sass: ['./app/styles/**/*.scss'],
        js: ['./app/js/**/*.js'],
        constants: ['./app/js/constants/*.json'],
        jsTest: ['./tests/utilities/*.js'],
        html: ['./app/views/**/*.html', './app/*.html'],
        lib: ['./app/components/**/*', './app/lib/**/*'],
        test: {
            e2e: 'tests/e2e/**/*-spec.js'
        }
    };

gulp.task('sass', function (done) {
    return gulp.src(paths.sass)
        .pipe(sass())
        .pipe(gulp.dest('./www/css/'))
        .pipe(minifyCss({
            keepSpecialComments: 0
        }))
        .pipe(rename({
            extname: '.min.css'
        }))
        .pipe(gulp.dest('./www/css/'));
});

gulp.task('constants', function () {
    return gulp.src(paths.constants)
        .pipe(ngConstant({ name: 'splitr.constants' }))
        .pipe(rename('constants.js'))
        .pipe(gulp.dest('./www/js/'));
});

gulp.task('scripts', function () {
    return gulp.src(paths.js)
        .pipe(order([
            'utilities/*.js',
            'vendor/*.js',
            'app.js',
            'factories/*.js',
            'directives/*.js',
            'services/*.js',
            'controllers/*.js'
        ]))
        .pipe(concat('app.js'))
        .pipe(gulp.dest('./www/js/'));
});

gulp.task('html', function () {
    return gulp.src(paths.html, {
            base: 'app'
        })
        .pipe(gulp.dest('./www'));
});

gulp.task('lib', function () {
    return gulp.src(paths.lib)
        .pipe(gulp.dest('./www/lib/'));
});

gulp.task('clean', function () {
    return gulp.src('./www/*.*', {
            read: false
        })
        .pipe(clean({
            force: true
        }));
});

// gulp.task('webdriver:update', webdriverUpdate);

// gulp.task('protractor', ['webdriver:update', 'connect:test'], function () {
//     return gulp.src(paths.test.e2e)
//         .pipe(protractor({
//             configFile: 'tests/protractor.config.js',
//             debug: argv.debug
//         }))
//         .on('error', function (e) {
//             throw e;
//         });
// });

// gulp.task('connect:test', ['default'], function () {
//     return connect.server({
//         root: 'www',
//         port: '8300',
//         livereload: false
//     });
// });

// gulp.task('test', ['protractor'], function () {
//     connect.serverClose();
// });

gulp.task('watch', ['default'], function () {
    gulp.watch(paths.sass, ['sass']);
    gulp.watch(paths.constants, ['constants']);
    gulp.watch(paths.js, ['scripts']);
    gulp.watch(paths.html, ['html']);
    gulp.watch(paths.lib, ['lib']);
});

gulp.task('default', function (callback) {
    runSequence('clean', ['sass', 'constants', 'scripts', 'html', 'lib'], callback);
});