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webpack.config.js
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// Helper: root() is defined at the bottom
const path = require('path');
const webpack = require('webpack');
const glob = require('glob');
// Webpack Plugins
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HardSourceWebpackPlugin = require('hard-source-webpack-plugin');
const OptimizeCssAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const UglifyWebpackPlugin = require('uglifyjs-webpack-plugin');
const PurifyCSSPlugin = require('purifycss-webpack');
/**
* Env
* Get npm lifecycle event to identify the environment
*/
const ENV = process.env.npm_lifecycle_event;
const isTestWatch = ENV === 'test-watch';
const isTest = ENV === 'test' || isTestWatch;
const isProd = ENV === 'build';
module.exports = function makeWebpackConfig() {
/**
* Config
* Reference: http://webpack.github.io/docs/configuration.html
* This is the object where all configuration gets set
*/
const config = {};
/**
* Devtool
* Reference: http://webpack.github.io/docs/configuration.html#devtool
* Type of sourcemap to use per build type
*/
if (isProd) {
config.devtool = 'cheap-module-source-map';
}
/**
* Entry
* Reference: http://webpack.github.io/docs/configuration.html#entry
*/
config.entry = isTest ? {} : {
polyfills: './src/polyfills.ts',
vendor: './src/vendor.ts',
app: './src/main' // our angular app
};
/**
* Output
* Reference: http://webpack.github.io/docs/configuration.html#output
*/
config.output = {
path: root('dist'),
publicPath: '/',
filename: isProd ? 'js/[name].[chunkhash].js' : 'js/[name].js',
chunkFilename: isProd ? '[id].[chunkhash].chunk.js' : '[id].chunk.js'
};
/**
* Optimization
* Reference: https://webpack.js.org/configuration/optimization/
*/
config.optimization = {
minimize: false, // Uncomment it to disable optimizations and speed up building.
minimizer: [
// A Webpack plugin to cut unused CSS selectors.
new PurifyCSSPlugin({
styleExtensions: ['.css', '.scss', '.min.css'],
moduleExtensions: ['.html'],
minimize: true,
paths: glob.sync(root('src', 'app', '**', '*.html'))
}),
// A Webpack plugin to optimize \ minimize CSS assets.
// It will search for CSS assets during the Webpack build and will optimize \ minimize the CSS.
// Reference: https://github.com/NMFR/optimize-css-assets-webpack-plugin
new OptimizeCssAssetsPlugin({
assetNameRegExp: /\.(css|sass|scss)$/g,
cssProcessor: require('cssnano'),
cssProcessorOptions: {discardComments: {removeAll: true}},
}),
new UglifyWebpackPlugin({
parallel: true,
cache: true,
sourceMap: true,
uglifyOptions: {
keep_fnames: true // Reference: https://github.com/mishoo/UglifyJS2#minify-options
}
})
],
noEmitOnErrors: true
};
/**
* Resolve
* Reference: http://webpack.github.io/docs/configuration.html#resolve
*/
config.resolve = {
// only discover files that have those extensions
extensions: ['.ts', '.js', '.json', '.css', '.scss', '.html']
};
let atlOptions = '';
if (isTest && !isTestWatch) {
// awesome-typescript-loader needs to output inlineSourceMap for code coverage to work with source maps.
atlOptions = 'inlineSourceMap=true&sourceMap=false';
}
/**
* Loaders
* Reference: http://webpack.github.io/docs/configuration.html#module-loaders
* List: http://webpack.github.io/docs/list-of-loaders.html
* This handles most of the magic responsible for converting modules
*/
config.module = {
rules: [
// Support for TS files.
{
test: /\.ts$/,
loaders: ['awesome-typescript-loader?' + atlOptions, 'angular-router-loader', 'angular2-template-loader'],
exclude: [isTest ? /\.(e2e)\.ts$/ : /\.(spec|e2e)\.ts$/, /node_modules\/(?!(ng2-.+))/, /node_modules/]
},
// Copy those assets to output.
{
test: /\.(png|jpe?g|gif|svg|woff|woff2|ttf|eot|ico)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
loader: 'file-loader?name=assets/[name].[hash].[ext]?'
},
// Support for XML files.
{
test: /\.xml$/,
loader: 'xml-loader'
},
// Support for CSS as raw text.
// Use 'null' loader in test mode. Reference: https://github.com/webpack/null-loader
// All CSS files in src/style will be bundled in an external CSS file.
{
test: /\.css$/,
exclude: root('src', 'app'),
use: isTest ? 'null-loader' : [
MiniCssExtractPlugin.loader,
{loader: 'css-loader', options: {minimize: true}},
'postcss-loader'
]
},
// All CSS files required in src/app files will be merged in JS files.
{
test: /\.css$/,
include: root('src', 'app'),
loader: 'raw-loader!postcss-loader'
},
// Support for SCSS files.
// Use 'null' loader in test mode. Reference: https://github.com/webpack/null-loader
// All CSS files in src/style will be bundled in an external CSS file.
{
test: /\.(scss|sass)$/,
exclude: root('src', 'app'),
use: isTest ? 'null-loader' : [
MiniCssExtractPlugin.loader,
{loader: 'css-loader', options: {minimize: true}},
'postcss-loader',
'fast-sass-loader'
]
},
// All CSS files required in src/app files will be merged in JS files.
{
test: /\.(scss|sass)$/,
exclude: root('src', 'style'),
loader: 'raw-loader!postcss-loader!fast-sass-loader'
},
// Support for HTML files as raw text.
// TODO: change the loader to something that adds a hash to images.
{
test: /\.html$/,
exclude: root('src', 'public'),
loader: 'raw-loader'
}
]
};
if (isProd) {
config.module.rules.push(
// Transpile module 'blocko' to es5.
{
test: /\.m?js$/,
include: root('node_modules', 'blocko'),
use: 'babel-loader?cacheDirectory',
},
// Minimize images.
{
test: /\.(jpg|png|gif|svg)$/,
loader: 'image-webpack-loader',
enforce: 'pre'
}
);
}
if (!isTest || !isTestWatch) {
// Supprt for tslint.
config.module.rules.push({
test: /\.ts$/,
exclude: /node_modules/,
enforce: 'pre',
loader: 'tslint-loader'
});
}
/**
* Plugins
* Reference: http://webpack.github.io/docs/configuration.html#plugins
* List: http://webpack.github.io/docs/list-of-plugins.html
*/
config.plugins = [
// HardSourceWebpackPlugin is a plugin for Webpack
// to provide an intermediate caching step for modules.
// Reference: https://github.com/mzgoddard/hard-source-webpack-plugin
new HardSourceWebpackPlugin(),
new webpack.ContextReplacementPlugin(/(.+)?angular([\\\/])core(.+)?/, root('./src'), {})
];
config.plugins.push(
// Inject script and link tags into html files.
// Reference: https://github.com/ampedandwired/html-webpack-plugin
new HtmlWebpackPlugin({
inject: false,
template: './src/public/index.html',
chunksSortMode: 'dependency',
}),
// This plugin extracts CSS into separate files. It creates a CSS file per JS file which contains CSS.
// Reference: https://github.com/webpack-contrib/mini-css-extract-plugin
// Disabled when in test mode.
new MiniCssExtractPlugin({
filename: !isProd ? '[name].css' : 'css/[name].[hash].css',
chunkFilename: !isProd ? '[id].css' : 'css/[id].[hash].css',
hash: true
})
);
// Add build(production mode) specific plugins.
if (isProd) {
config.plugins.push(
new CopyWebpackPlugin([{
from: root('src', 'public'),
// To avoid duplicity of pictures.
ignore: ['*.svg', '*.png', '*.json', '*.xml', '*.ico']
}]),
);
}
config.plugins.push(
new CopyWebpackPlugin([
{
from: root('node_modules/monaco-editor/min/vs'),
to: 'libs/monaco-editor/vs'
}
])
);
config.plugins.push(
new webpack.IgnorePlugin(/mongodb/)
);
/**
* Dev server configuration
* Reference: http://webpack.github.io/docs/configuration.html#devserver
* Reference: http://webpack.github.io/docs/webpack-dev-server.html
*/
if (!isProd) {
config.devServer = {
host: 'localhost',
port: 8080,
contentBase: './src/public',
historyApiFallback: true,
quiet: true,
open: true,
stats: true // none (or false), errors-only, minimal, normal (or true) and verbose
};
}
return config;
}();
// Helper function
function root(args) {
args = Array.prototype.slice.call(arguments, 0);
return path.join.apply(path, [__dirname].concat(args));
}