var cssnano = require('cssnano'), gulp = require('gulp'), less = require('gulp-less'), rename = require('gulp-rename'), plumber = require('gulp-plumber'), postcss = require('gulp-postcss'), stylelint = require('gulp-stylelint'); var resources = { daux_blue:{source: "themes/daux/less/theme-blue.less", dest: "themes/daux/css/"}, daux_green:{source: "themes/daux/less/theme-green.less", dest: "themes/daux/css/"}, daux_navy:{source: "themes/daux/less/theme-navy.less", dest: "themes/daux/css/"}, daux_red:{source: "themes/daux/less/theme-red.less", dest: "themes/daux/css/"}, daux_singlepage:{source: "themes/daux_singlepage/less/main.less", dest: "themes/daux_singlepage/css/"} }; var stylelintRules = { "indentation": 4, "selector-list-comma-newline-after": "always-multi-line", "selector-no-id": true, // Autoprefixer "at-rule-no-vendor-prefix": true, "media-feature-name-no-vendor-prefix": true, "property-no-vendor-prefix": true, "selector-no-vendor-prefix": true, "value-no-vendor-prefix": true }; var cssnanoOptions = { safe: true, // Disable dangerous optimisations filterPlugins: false, // This does very weird stuff autoprefixer: { add: true, // Add needed prefixes remove: true // Remove unnecessary prefixes } }; function createCSSTask(source, dest) { return function () { return gulp.src(source) .pipe(plumber()) .pipe(less()) .pipe(postcss([cssnano(cssnanoOptions)])) .pipe(rename({suffix: '.min'})) .pipe(gulp.dest(dest)); } } gulp.task('lint-css', function () { return gulp .src(['themes/**/less/**/*.less', '!themes/**/vendor/**/*.less']) .pipe(stylelint({ failAfterError: true, config: { extends: 'stylelint-config-standard', rules: stylelintRules }, syntax: 'less', reporters: [{ formatter: 'string', console: true }], debug: true })); }); var style_tasks = []; for (var style in resources) { if (resources.hasOwnProperty(style)) { gulp.task('style_' + style, createCSSTask(resources[style].source, resources[style].dest)); style_tasks.push('style_' + style); } } style_tasks.push('lint-css'); gulp.task("styles", style_tasks); gulp.task('watch', ['default'], function () { // Watch .less files gulp.watch('themes/**/less/**/*.less', ['styles']); }); gulp.task('default', ['styles']);