const path = require('path');
const webpack = require('webpack');
const UglifyJSPlugin = require('uglifyjs-webpack-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const ExtractTextPlugin = require("extract-text-webpack-plugin");

module.exports = {
    entry: {
        app: './index.js',
        vendor: ['dot']
    },
    externals: {
        echarts: 'window.echarts',
        $: 'jQuery'
    },
    output: {
        path: path.resolve(__dirname, 'dist'),
        publicPath: '',
        filename: '[name].[hash:8].js',
        //filename: '[name].[hash:8].js'
    },
    // devtool: 'cheap-module-eval-source-map',
    devtool: 'eval',
    devServer: {
        hot: true,
        inline: true,
        progress: true
    },
    module: {
        rules: [{
            test: /\.css$/,
            use: ExtractTextPlugin.extract({fallback: 'style-loader', use: 'css-loader!autoprefixer-loader'})
        },
        {
            test: /\.html$/,
            use: [
                'html-loader'
            ]
        },
        {
            test: /\.js$/,
            exclude: /node_modules/,
            use: [{
                loader: 'babel-loader',
                options: {
                    presets: ['env']
                }
            }],
        },
        {
            test: /\.(png|jpg|gif)$/,
            use: {
                loader: 'url-loader',
                options: {
                    limit: 8192,
                    name: 'images/[name].[ext]?v=[hash:8]'
                }
            },
        },
        ]
    },
    plugins: [
        new webpack.ProvidePlugin({ //全局配置加载
            $: "jquery",
            jQuery: "jquery",
            "window.jQuery": "jquery"
        }),
        // new CleanWebpackPlugin(['dist']),
        new UglifyJSPlugin(),
        new webpack.optimize.CommonsChunkPlugin({
            names: ['vendor', 'manifest']
        }),
        new ExtractTextPlugin('styles.css'),
        new HtmlWebpackPlugin({
            filename: 'index.html',
            template: 'indexTmp.html',
        }),
        new webpack.optimize.OccurrenceOrderPlugin(),
        new webpack.HotModuleReplacementPlugin(),
    ]
};