gulpfile.js

// Load plugins
const gulp = require("gulp");

// Copy third party libraries from /node_modules into /vendor
gulp.task('vendor', function(cb) {

  // Start Bootstrap Clean Blog SCSS
  gulp.src([
      './node_modules/startbootstrap-clean-blog/scss/**/*'
    ])
    .pipe(gulp.dest('./assets/vendor/startbootstrap-clean-blog/scss'))

  // Start Bootstrap Clean Blog JS
  gulp.src([
      './node_modules/startbootstrap-clean-blog/js/clean-blog.min.js',
      './node_modules/startbootstrap-clean-blog/js/jqBootstrapValidation.js'
    ])
    .pipe(gulp.dest('./assets/vendor/startbootstrap-clean-blog/js'))

  // Bootstrap
  gulp.src([
      './node_modules/bootstrap/dist/**/*',
      '!./node_modules/bootstrap/dist/css/bootstrap-grid*',
      '!./node_modules/bootstrap/dist/css/bootstrap-reboot*'
    ])
    .pipe(gulp.dest('./assets/vendor/bootstrap'))

  // jQuery
  gulp.src([
      './node_modules/jquery/dist/*',
      '!./node_modules/jquery/dist/core.js'
    ])
    .pipe(gulp.dest('./assets/vendor/jquery'))

  // Font Awesome
  gulp.src([
      './node_modules/@fortawesome/**/*',
    ])
    .pipe(gulp.dest('./assets/vendor'))

  cb();

});

gulp.task("default", gulp.parallel('vendor'));