webpack.config.js

var PROD = process.argv.indexOf('-p') >= 0;
var webpack = require('webpack');

module.exports = {
    entry: {
        'echarts-liquidfill': __dirname + '/index.js'
    },
    output: {
        libraryTarget: 'umd',
        library: ['echarts-liquidfill'],
        path: __dirname + '/dist',
        filename: PROD ? '[name].min.js' : '[name].js'
    },
    externals: {
        'echarts/lib/echarts': 'echarts'
    },
    devtool: 'source-map',
    resolve: {
        alias: {
            'echarts/lib/echarts': 'echarts'
        }
    },
    plugins: PROD ? [
        new webpack.optimize.UglifyJsPlugin({
            compress: { warnings: false }
        })
    ] : []
};