support license for compress css

toolers/Gulpfile.js

@@ -2,21 +2,35 @@ var gulp = require ('gulp'),
 minifycss = require('gulp-minify-css'),
 rename = require('gulp-rename'),
 uglify = require ('gulp-uglify'),
-clean = require('gulp-clean');
+clean = require('gulp-clean'),
+license = require('gulp-header-license'),
+fs = require('fs');
 
-gulp.task ('clean', function () {
-	gulp.src('../*/css/*.min.css').pipe(clean({force: true}));
+gulp.task ('clean', function (cb) {
+	var stream = gulp.src('../*/css/*.min.css').pipe(clean({force: true}));
 	gulp.src('../*/js/*.min.js').pipe(clean({force: true}));
+
+	return stream;
 });
 
-gulp.task ('build', function () {
-    gulp.src ('../*/css/*.css')
+gulp.task ('build', ['clean'], function (cb) {
+    var stream = gulp.src ('../*/css/*.css')
     .pipe(rename({ suffix: '.min' }))
-	.pipe(minifycss({keepSpecialComments: '1'}))
+	.pipe(minifycss())
 	.pipe(gulp.dest ('../'));
 
     gulp.src ('../*/js/*.js')
     .pipe(rename({ suffix: '.min' }))
 	.pipe(uglify({preserveComments: 'license'}))
 	.pipe(gulp.dest ('../'));
-});
+
+	return stream;
+});
+
+gulp.task ('license', ['clean', 'build'], function () {
+	gulp.src('../*/css/*.min.css')
+            .pipe(license(fs.readFileSync('header.txt', 'utf8'), {year: (new Date()).getFullYear()}, 1))
+            .pipe(gulp.dest('../'));
+});
+
+gulp.task('default', ['clean', 'build', 'license']);

toolers/header.txt

@@ -0,0 +1,15 @@
+/**
+ * Copyright (c) 2010-${year}, b3log.org & hacpai.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */

toolers/package.json

@@ -6,6 +6,7 @@
   "devDependencies": {
     "gulp": "^3.9.1",
     "gulp-clean": "^0.3.2",
+    "gulp-header-license": "^1.0.6",
     "gulp-minify-css": "^1.2.4",
     "gulp-rename": "^1.2.2",
     "gulp-uglify": "^2.0.0"