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webpack.parts.js
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webpack.parts.js
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const webpack = require('webpack');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const PurifyCSSPlugin = require('purifycss-webpack-plugin');
exports.devServer = function(options) {
return {
devServer: {
// Enable history API fallback so HTML5 History API based
// routing works. This is a good default that will come
// in handy in more complicated setups.
historyApiFallback: true,
// Unlike the cli flag, this doesn't set
// HotModuleReplacementPlugin!
hot: true,
inline: true,
// Display only errors to reduce the amount of output.
stats: 'errors-only',
// Parse host and port from env to allow customization.
//
// If you use Vagrant or Cloud9, set
// host: options.host || '0.0.0.0';
//
// 0.0.0.0 is available to all network devices
// unlike default `localhost`.
host: options.host, // Defaults to `localhost`
port: options.port // Defaults to 8080
},
plugins: [
// Enable multi-pass compilation for enhanced performance
// in larger projects. Good default.
new webpack.HotModuleReplacementPlugin({
// Disabled as this won't work with html-webpack-template yet
//multiStep: true
})
]
};
}
exports.setupCSS = function(paths) {
return {
module: {
rules: [
{
test: /\.css$/,
use: ['style-loader', 'css-loader'],
include: paths
}
]
}
};
}
exports.minify = function() {
return {
plugins: [
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
}
})
]
};
}
exports.setFreeVariable = function(key, value) {
const env = {};
env[key] = JSON.stringify(value);
return {
plugins: [
new webpack.DefinePlugin(env)
]
};
}
exports.extractBundle = function(options) {
const entry = {};
entry[options.name] = options.entries;
return {
// Define an entry point needed for splitting.
entry: entry,
plugins: [
// Extract bundle and manifest files. Manifest is
// needed for reliable caching.
new webpack.optimize.CommonsChunkPlugin({
names: [options.name, 'manifest']
})
]
};
}
exports.clean = function(path) {
return {
plugins: [
new CleanWebpackPlugin([path], {
// Without `root` CleanWebpackPlugin won't point to our
// project and will fail to work.
root: process.cwd()
})
]
};
}
exports.extractCSS = function(paths) {
return {
module: {
rules: [
// Extract CSS during build
{
test: /\.css$/,
loader: ExtractTextPlugin.extract({
fallbackLoader: 'style-loader',
loader: 'css-loader'
}),
include: paths
}
]
},
plugins: [
// Output extracted CSS to a file
new ExtractTextPlugin('[name].[chunkhash].css')
]
};
}
exports.purifyCSS = function(paths) {
return {
plugins: [
new PurifyCSSPlugin({
basePath: process.cwd(),
// `paths` is used to point PurifyCSS to files not
// visible to Webpack. This expects glob patterns so
// we adapt here.
paths: paths.map(path => `${path}/*`),
// Walk through only html files within node_modules. It
// picks up .js files by default!
resolveExtensions: ['.html']
}),
]
}
}