Sample Gulp config

gulpfile.js

var gulp = require('gulp');
var plumber = require('gulp-plumber');
var print = require('gulp-print');
var notify = require("gulp-notify");
var sass = require('gulp-sass');
var sourcemaps = require('gulp-sourcemaps');
var csslint = require('gulp-csslint');
var autoprefixer = require('gulp-autoprefixer');
var uglify = require('gulp-uglify');
var browserSync = require('browser-sync');
var eslint = require('gulp-eslint');
var reload = browserSync.reload;

var paths = {
  template: '../app/design/frontend/snowdog/v2/**',
  sass: '../skin/frontend/snowdog/v2/scss',
  css: '../skin/frontend/snowdog/v2/css',
  scripts: '../skin/frontend/snowdog/v2/js/dev',
  custom: '../skin/frontend/snowdog/v2/js/dev/*.js',
  libs: '../skin/frontend/snowdog/v2/js/dev/lib/*.js',
  build: '../skin/frontend/snowdog/v2/js/build'
};

var esLintSettings = {
  configFile: './.eslintrc'
};

var cssLintSettings = {
  'adjoining-classes': false,
  'box-model': false,
  'box-sizing': false,
  'compatible-vendor-prefixes': false,
  'empty-rules': false,
  'display-property-grouping': false,
  'duplicate-background-images': false,
  'duplicate-properties': false,
  'fallback-colors': false,
  'floats': false,
  'font-faces': false,
  'font-sizes': false,
  'gradients': false,
  'ids': false,
  'import': false,
  'important': false,
  'known-properties': false,
  'outline-none': false,
  'overqualified-elements': false,
  'qualified-headings': false,
  'regex-selectors': false,
  'shorthand': false,
  'star-property-hack': false,
  'text-indent': false,
  'underscore-property-hack': false,
  'unique-headings': false,
  'universal-selector': false,
  'unqualified-attributes': false,
  'vendor-prefix': false,
  'zero-units': false,
};

gulp.task('default', ['dev', 'watch', 'scripts', 'libs']);

// browser sync
gulp.task('dev', function() {
  browserSync({
    proxy: "eobuwie.dev"
  });
});

// watch tasks
gulp.task('watch', function() {
  gulp.watch(paths.sass + '/**', ['sass', 'galanteria']);
  gulp.watch(paths.template, reload);
  gulp.watch(paths.build + '/*.js', reload);
});

// compile SASS
gulp.task('sass', function() {
  return gulp.src(paths.sass + '/*.scss')
    .pipe(plumber({
      errorHandler: notify.onError("Error: <%= error.message %>")
    }))
    // .pipe(sourcemaps.init())
    .pipe(sass({
      outputStyle: 'compressed'
    }))
    .pipe(autoprefixer())
    .pipe(csslint(cssLintSettings))
    .pipe(csslint.reporter())
    // .pipe(sourcemaps.write())
    .pipe(gulp.dest(paths.css))
    .pipe(reload({
      stream: true
    }));
});

gulp.task('galanteria', function() {
  return gulp.src('../skin/frontend/snowdog/v2-galanteria/scss/*.scss')
    .pipe(plumber({
      errorHandler: notify.onError("Error: <%= error.message %>")
    }))
    // .pipe(sourcemaps.init())
    .pipe(sass({
      outputStyle: 'compressed'
    }))
    .pipe(autoprefixer())
    .pipe(csslint(cssLintSettings))
    .pipe(csslint.reporter())
    // .pipe(sourcemaps.write())
    .pipe(gulp.dest('../skin/frontend/snowdog/v2-galanteria/css'))
    .pipe(reload({
      stream: true
    }));
});

// lint and build custom scripts on changes
gulp.task('scripts', function() {
  gulp.watch(paths.custom, function(event) {
    gulp.src(event.path)
      .pipe(plumber({
        errorHandler: notify.onError("ESLint found problems")
      }))
      .pipe(print(event.path))
      .pipe(eslint(esLintSettings))
      .pipe(eslint.format())
      // .pipe(eslint.failOnError())
      .pipe(uglify())
      .pipe(gulp.dest(paths.build));
  });
});

// lint and build libs on changes
gulp.task('libs', function() {
  gulp.watch(paths.libs, function(event) {
    gulp.src(event.path)
      .pipe(plumber({
        errorHandler: notify.onError("Error: <%= error.message %>")
      }))
      .pipe(print(event.path))
      .pipe(uglify())
      .pipe(gulp.dest(paths.build + '/lib'));
  });
});

// lint all custom scripts
gulp.task('js-lint', function() {
  return gulp.src(paths.custom)
    .pipe(print(this.path))
    .pipe(plumber({
      errorHandler: notify.onError("ESLint found problems")
    }))
    .pipe(eslint(esLintSettings))
    .pipe(eslint.format());
});

// lint all css files
gulp.task('css-lint', function() {
  return gulp.src(paths.css + '/*.css')
    .pipe(print(this.path))
    .pipe(plumber({
      errorHandler: notify.onError("Error: <%= error.message %>")
    }))
    .pipe(csslint())
    .pipe(csslint.reporter());
});

// build all JS
gulp.task('build-all-js', function() {
  return gulp.src(paths.scripts + '/**/*.js')
    .pipe(print(this.path))
    .pipe(uglify())
    .pipe(gulp.dest(paths.build))
});

// bulid release
gulp.task('release', ['sass', 'galanteria', 'build-all-js']);

package.json

{
	"devDependencies": {
		"browser-sync": "^2.9.3",
		"gulp": "^3.9.0",
		"gulp-autoprefixer": "^3.0.1",
		"gulp-csslint": "^0.1.5",
		"gulp-eslint": "^1.0.0",
		"gulp-notify": "^2.2.0",
		"gulp-plumber": "^1.0.1",
		"gulp-print": "^1.1.0",
		"gulp-sass": "^2.0.4",
		"gulp-sourcemaps": "^1.5.2",
		"gulp-uglify": "^1.4.1"
	}
}