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webpack.prod.js
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webpack.prod.js
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const fs = require('fs-extra-promise')
const path = require('path')
const webpack = require('webpack')
const config = require('./webpack.base.js')
const buildPath = path.join(__dirname, 'build')
// Merge with base configuration
//-------------------------------
Object.assign(config, {
cache: false,
devtool: 'source-map',
entry: {
bundle: path.join(__dirname, 'src/config/client.js')
},
output: {
path: buildPath,
publicPath: '/build/'
}
})
// Production plugins for old browsers
//------------------------------------
config.module.loaders.forEach(loader => {
if (loader.loader === 'babel-loader') {
loader.query.plugins.push(
"transform-es2015-arrow-functions",
"transform-es2015-block-scoped-functions",
"transform-es2015-block-scoping",
"transform-es2015-classes",
"transform-es2015-computed-properties",
"transform-es2015-literals",
"transform-es2015-parameters",
"transform-es2015-shorthand-properties",
"transform-es2015-spread",
"transform-es2015-template-literals"
)
}
})
console.info('Clearing Build Path')
fs.emptyDirSync(buildPath)
console.info('Environment: Production')
// Save files to disk
//-------------------------------
config.output.path = path.join(__dirname, 'build')
config.plugins.push(
new webpack.optimize.OccurrenceOrderPlugin(),
new webpack.optimize.UglifyJsPlugin({
compressor: {
screw_ie8: true,
warnings: false
},
output: {
comments: false
}
})
)
// Set some environment variables
//-------------------------------
config.plugins.push(new webpack.DefinePlugin({
'process.env.DEV': false,
'process.env.BROWSER': true,
'process.env.NODE_ENV': JSON.stringify('production')
}))
// Sanity checks
//-------------------------------
if (config.devtool === 'eval') {
throw new Error('Using "eval" source-maps may break the build')
}
// Compile everything for PROD
//-------------------------------
const compiler = webpack(config)
compiler.run(function(err, stats) {
if (err) throw err
// Output stats
console.log(stats.toString({
colors: true,
hash: false,
timings: false,
version: false,
chunks: false,
modules: false,
children: false,
chunkModules: false
}))
// Write a stats.json for the webpack bundle visualizer
//writeWebpackStats(stats)
if (stats.hasErrors()) {
console.error(stats.compilation.errors.toString())
}
console.info('Finished compiling')
})
/**
* Writes a stats.json for the webpack bundle visualizer
* URL: https://chrisbateman.github.io/webpack-visualizer/
* @param stats
*/
function writeWebpackStats(stats) {
const { resolve } = require('path')
const location = resolve(config.output.path, 'stats.json')
require('fs').writeFileSync(location, JSON.stringify(stats.toJson()))
console.debug(`Wrote stats.json to ${location}`)
}