• install Node.js to use Gulp 4

Using Windows cmd or Linux/macOS Terminal:

• install the gulp command line utility: $ npm install --global gulp-cli
• clone the repository $ git clone https://github.com/KrystynaKoryagina/gulp-sass-pug-build.git
• go to the folder $ cd gulp-sass-pug-build
• install packages from package.json: $ npm i
• start: $ gulp

• gulp-load-plugins - loads Gulp plugins from package dependencies and attaches them to an object
• gulp-sass - Gulp plugin for compiling SASS/SCSS templates
• gulp-pug - Gulp plugin for compiling PUG templates
• gulp-htmlmin - Gulp plugin to minify HTML
• gulp-csso - Gulp plugin to minify CSS
• gulp-sass-glob - Gulp plugin to use glob imports in sass/scss files
• gulp-sourcemaps - source map support for Gulp.js
• gulp-concat - concatenates files
• gulp-rename - rename files
• gulp-autoprefixer - prefix CSS
• gulp-css-unit - css unit converter
• gulp-imagemin - minify PNG, JPEG, GIF and SVG images
• gulp-uglify - minify files with UglifyJS
• gulp.spritesmith - convert a set of images into a spritesheet and CSS variables via gulp
• gulp-svg-sprite - Gulp plugin wrapping around svg-sprite that reads in a bunch of SVG files, optimizes them and creates SVG sprites and CSS resources in various flavours
• gulp-svgmin - minify SVG files with gulp
• gulp-plumber - prevent pipe breaking caused by errors from gulp plugins
• gulp-notify - Gulp plugin to send messages based on Vinyl Files or Errors to Mac OS X, Linux or Windows using the node-notifier module
• del - delete files and directories
• browser-sync - live CSS Reload & Browser Syncing

This Gulp build includes:

• Bootstrap

      bootstrap.min.js
      bootstrap.css
  

• jQuery

      jquery.min.js
  

• Normalize.css
• Animate.css

All third-party libraries are installed in the node_modules folder.

• install library via npm: $ npm install package_name --save and add path to the array gulp/paths/cssLibs.js for CSS or gulp/paths/jsLibs.js for JS
• uninstall library via npm: $ npm uninstall package_name -S and delete path from the array gulp/paths/cssLibs.js for CSS or gulp/paths/jsLibs.js for JS