brody/webpack.config.js at master · benwest/brody · GitHub

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var { EnvironmentPlugin } = require('webpack');
var UglifyJSPlugin = require('uglifyjs-webpack-plugin');
var path = require('path');
var isPlainObject = require('lodash/isPlainObject');

module.exports = ifEnv( env => ({

    target: 'web',

    entry: env({

        'production': [ 'babel-polyfill' ],

        '*': [

            path.resolve( __dirname, 'js', 'client.js' )

        ]

    }),

    devtool: env({

        'dev': 'cheap-module-source-map',

        'production': 'source-map'

    }),

    output: {

        path: path.resolve( __dirname, 'assets' ),

        filename: 'bundle.js',

        sourceMapFilename: '[file].map'

    },

    module: {

        loaders: [

            {

                test: /\.glsl$/,

                loaders: [

                    'raw-loader',

                    'glslify-loader'

                ]

            },

            {

                test: /\.js$/,

                exclude: /node_modules/,

                loaders: [

                    {

                        loader: 'babel-loader',

                        options: {

                            presets: env({

                                'production': [

                                    [ 'env' , { targets: { browsers: 'ie >= 11' } } ]

                                ]

                            }),

                            plugins: env({

                                '*': [ [ 'transform-react-jsx', { pragma: 'm' } ] ],

                                'production': [ 'transform-runtime', 'mopt' ]

                            })

                        }

                    }

                ]

            }

        ]

    },

    plugins: env({

        '*': [

            new EnvironmentPlugin({ API_BASE: 'http://brody-cms.bong.international/api' })

        ],

        'production': [

            new UglifyJSPlugin({

                sourceMap: true,

                parallel: true

            })

        ]

    })

}))

var switcher = env => defs => {

    var keys = Object.keys( defs );
    var values = keys.map( key => defs[ key ] );

    var included = keys
        .filter( key => key === '*' || key in env )
        .map( key => defs[ key ] );

    if ( values.every( Array.isArray ) ) {

        // Combine array options

        return included.reduce( ( a, b ) => a.concat( b ), [] );

    } else if ( values.every( isPlainObject ) ) {

        // Combine object options

        return included.reduce( ( a, b ) => Object.assign( a, b ), {} );

    } else if ( included.length === 1 && !( '*' in defs ) ) {

        // Single value per environment

        return included[ 0 ];

    } else {

        // One value for enviromnent, one for *

        return included;

    }

}

function ifEnv ( config ) {

    return env => config( switcher( env ) );

}