From b59e07425ec1ef32008018af7d8b61100d7992b1 Mon Sep 17 00:00:00 2001
From: codecalm <codecalm@gmail.com>
Date: Sat, 5 Dec 2020 21:17:28 +0100
Subject: [PATCH] demo purge css

---
 gulpfile.js  | 11 ++++++++++-
 package.json |  1 +
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/gulpfile.js b/gulpfile.js
index c067605d..aae82e48 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -7,6 +7,7 @@ const gulp = require('gulp'),
 	cleanCSS = require('gulp-clean-css'),
 	minifyJS = require('gulp-minify'),
 	rename = require('gulp-rename'),
+	purgecss = require('gulp-purgecss'),
 	rollupStream = require('@rollup/stream'),
 	rollupBabel = require('rollup-plugin-babel'),
 	rollupCleanup = require('rollup-plugin-cleanup'),
@@ -254,6 +255,14 @@ gulp.task('build-cleanup', () => {
 		.pipe(clean());
 });
 
+gulp.task('build-purgecss', () => {
+	return gulp.src('demo/dist/css/*.css')
+		.pipe(purgecss({
+			content: ['demo/**/*.html']
+		}))
+		.pipe(gulp.dest('demo/dist/css'))
+});
+
 /**
  * Watch JS and SCSS files
  */
@@ -358,5 +367,5 @@ gulp.task('clean', gulp.series('clean-dirs', 'clean-jekyll'));
 gulp.task('start', gulp.series('clean', 'sass', 'js', 'build-jekyll', gulp.parallel('watch-jekyll', 'watch', 'browser-sync')));
 
 gulp.task('build-core', gulp.series('build-on', 'clean', 'sass', 'js', 'copy-images', 'copy-libs', 'add-banner'));
-gulp.task('build-demo', gulp.series('build-on', 'build-jekyll', 'copy-static', 'copy-dist', 'build-cleanup'));
+gulp.task('build-demo', gulp.series('build-on', 'build-jekyll', 'copy-static', 'copy-dist', 'build-cleanup', 'build-purgecss'));
 gulp.task('build', gulp.series('build-core', 'build-demo'));
diff --git a/package.json b/package.json
index 0d26d1d1..17293e5d 100644
--- a/package.json
+++ b/package.json
@@ -63,6 +63,7 @@
     "gulp-header": "^2.0.9",
     "gulp-minify": "^3.1.0",
     "gulp-postcss": "^9.0.0",
+    "gulp-purgecss": "^3.0.0",
     "gulp-rename": "^2.0.0",
     "gulp-sass": "^4.1.0",
     "postcss": "^8.1.10",
-- 
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