function postPlugins() {
const plugins = [];
plugins.push(discardComments());
plugins.push(minifyGradients());
plugins.push(reduceTransforms());
// see https://github.com/ai/browserslist#queries
plugins.push(autoprefixer({browsers: ['last 3 versions'], cascade: false}));
plugins.push(convertValues({length: false}));
plugins.push(calc());
plugins.push(colormin());
plugins.push(orderedValues());
plugins.push(minifySelectors());
plugins.push(minifyParams());
plugins.push(normalizeCharset({add: false}));
// minify-font-values should be run before discard-unused
plugins.push(minifyFontValues());
plugins.push(discardUnused());
plugins.push(normalizeUrl);
plugins.push(cssnanoCore());
// Optimisations after this are sensitive to previous optimisations in
// the pipe, such as whitespace normalising/selector re-ordering
plugins.push(mergeIdents());
plugins.push(mergeLonghand());
plugins.push(discardDuplicates());
plugins.push(mergeRules());
plugins.push(discardEmpty());
plugins.push(uniqueSelectors());
return plugins;
}
var postcss = require('gulp-postcss');
var atImport = require('postcss-import');
var cssnext = require('postcss-cssnext');
var minifyFontValues = require('postcss-minify-font-values');
var inlineSVG = require('postcss-inline-svg');
var brandColors = require('postcss-brand-colors');
var modules = [
atImport(config.atImport),
brandColors(),
cssnext({
browsers: ['last 4 version', '> 5%']
}),
minifyFontValues(),
inlineSVG({
path: './' + config.desc + '/'
}),
];
gulp.task('css', function () {
return gulp.src([
config.css.src + config.css.start_point
])
.pipe(postcss(modules))
.on('error', handlers.error)
.pipe(base64(config.assets))
.pipe(csso())
.pipe(rename(config.css.compiled))
.pipe(gulp.dest(config.css.desc));