GruntFile.js

module.exports = function(grunt) {

  var wso2banner = '/*\n * Copyright (c) <%= grunt.template.today("yyyy") %>, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.\n *'
  +'\n * Licensed under the Apache License, Version 2.0 (the "License");\n'
  +' * you may not use this file except in compliance with the License./\n'
  +' * You may obtain a copy of the License at\n *\n *'
  +'     http://www.apache.org/licenses/LICENSE-2.0\n *\n'
  +' * Unless required by applicable law or agreed to in writing, software\n'
  +' * distributed under the License is distributed on an "AS IS" BASIS,\n'
  +' * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n'
  +' * See the License for the specific language governing permissions and\n'
  +' * limitations under the License.\n */\n';
  
  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),
    concat: {
      options: {
        banner: wso2banner,
        separator: ';'
      },
      dist: {
        src: ['charts/*.js'],
        dest: 'dist/<%= pkg.name %>.js'
      }
    },
    uglify: {
      options: {
        banner: wso2banner
      },
      dist: {
        files: {
          'dist/<%= pkg.name %>.min.js': ['<%= concat.dist.dest %>']
        }
      }
    },
    copy: {
        main: {
            files: [
                { expand: true, cwd: 'dist', src: ['VizGrammar.min.js'], dest: 'samples/js/' }
            ],
        },
    }
  });

  grunt.loadNpmTasks('grunt-contrib-uglify');
  grunt.loadNpmTasks('grunt-contrib-concat');
  grunt.loadNpmTasks('grunt-contrib-copy');
  grunt.registerTask('default', ['concat', 'uglify', 'copy']);

};