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'use strict';
const webpack = require('webpack');
const path = require('path');
const isDev = process.env.NODE_ENV !== 'production';
process.env.BABEL_ENV = process.env.NODE_ENV;
// ----- devtool
let devtool;
if (isDev) {
// https://webpack.js.org/configuration/devtool/
devtool = 'eval';
} else {
// https://webpack.js.org/configuration/devtool/
devtool = 'source-map';
}
module.exports.devtool = devtool;
// ---- entry
const entry = {
// vendor: ['babel-polyfill'],
app: ['./src/index.js']
};
module.exports.entry = entry;
// ---- output
const output = {
path: path.resolve(__dirname, 'public'),
filename: '[name].bundle.js',
publicPath: ''
};
module.exports.output = output;
// ----- rules
const jsRule = {
test: /\.js$/,
exclude: /node_modules/,
use: ['babel-loader']
};
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const cssExtractPlugin = new MiniCssExtractPlugin({
filename: isDev ? '[name].bundle.css' : '[name].[chunkhash].css'
});
const LOCAL_IDENT_NAME_DEV = '[path]---[name]---[local]---[hash:base64:5]';
const LOCAL_IDENT_NAME_PROD = '[hash:base64:10]';
const localIdentName = isDev ? LOCAL_IDENT_NAME_DEV : LOCAL_IDENT_NAME_PROD;
const cssnano = require('cssnano');
const loaders = {
style: {
loader: 'style-loader',
options: {
// workaround css modules HMR issue
// see https://github.com/webpack-contrib/style-loader/issues/320
hmr: false
}
},
css: { loader: 'css-loader' },
cssModule: {
loader: 'css-loader',
options: {
modules: true,
localIdentName
}
},
postcss: {
loader: 'postcss-loader',
options: {
plugins: () => [require('autoprefixer'), cssnano()]
}
},
sass: {
loader: 'sass-loader'
}
};
const cssDevRule = {
test: /\.css$/,
exclude: /\.module\.css$/,
use: [loaders.style, loaders.css, loaders.postcss]
};
const cssProdRule = {
test: /\.css$/,
exclude: /\.module\.css$/,
use: [MiniCssExtractPlugin.loader, loaders.css, loaders.postcss]
};
const cssModulesDevRule = {
test: /\.module\.css$/,
use: [loaders.style, loaders.cssModule, loaders.postcss]
};
const cssModulesProdRule = {
test: /\.module\.css$/,
use: [MiniCssExtractPlugin.loader, loaders.cssModule, loaders.postcss]
};
const fileRule = {
test: /\.(ttf|eot|woff|woff2)(\?.+)?$/,
use: [
{
loader: 'file-loader',
options: {
name: '[name].[ext]'
}
}
]
};
const sassDevRule = {
test: /\.scss$/,
exclude: /\.module\.scss$/,
use: [loaders.style, loaders.css, loaders.postcss, loaders.sass]
};
const sassProdRule = {
test: /\.scss$/,
exclude: /\.module\.scss$/,
use: [MiniCssExtractPlugin.loader, loaders.css, loaders.postcss, loaders.sass]
};
const sassCssModuleDevRule = {
test: /\.module\.scss$/,
use: [loaders.style, loaders.cssModule, loaders.postcss, loaders.sass]
};
const sassCssModuleProdRule = {
test: /\.module\.scss$/,
use: [
MiniCssExtractPlugin.loader,
loaders.cssModule,
loaders.postcss,
loaders.sass
]
};
module.exports.jsRule = jsRule;
module.exports.fileRule = fileRule;
module.exports.cssDevRule = cssDevRule;
module.exports.cssProdRule = cssProdRule;
module.exports.cssModulesDevRule = cssModulesDevRule;
module.exports.cssModulesProdRule = cssModulesProdRule;
module.exports.sassDevRule = sassDevRule;
module.exports.sassProdRule = sassProdRule;
module.exports.sassCssModuleDevRule = sassCssModuleDevRule;
module.exports.sassCssModuleProdRule = sassCssModuleProdRule;
const rules = {
js: jsRule,
file: fileRule,
css: isDev ? cssDevRule : cssProdRule,
cssModules: isDev ? cssModulesDevRule : cssModulesProdRule,
sass: isDev ? sassDevRule : sassProdRule,
sassCssModules: isDev ? sassCssModuleDevRule : sassCssModuleProdRule
};
module.exports.rules = rules;
// ----- plugins
// webpack 4 enable optimization concatenateModules by default
// https://medium.com/webpack/webpack-4-mode-and-optimization-5423a6bc597a
// const moduleConcatPlugin = new webpack.optimize.ModuleConcatenationPlugin();
const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
const bundleAnalyzerPlugin = new BundleAnalyzerPlugin({
analyzerMode: 'static',
reportFilename: 'report.html',
openAnalyzer: false
});
// prints more readable module names in the browser console on HMR updates
let plugins = [];
let pluginsCommon = [];
if (isDev) {
// in webpack 4 / namedModules will be enabled by default
plugins = [...pluginsCommon];
} else {
plugins = [
...pluginsCommon,
new webpack.HashedModuleIdsPlugin(),
cssExtractPlugin,
bundleAnalyzerPlugin
];
}
module.exports.plugins = plugins;
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