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webpack.config.js
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webpack.config.js
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// =============
// Dependencies.
// =============
const HtmlWebPackPlugin =
require('html-webpack-plugin')
const MiniCssExtractPlugin =
require('mini-css-extract-plugin')
const path = require('path')
// ========
// Plugins.
// ========
const plugins = [
// CSS.
new MiniCssExtractPlugin({
filename: '[name].css'
}),
// HTML.
new HtmlWebPackPlugin({
template: './source/demo.html',
filename: './index.html',
minify: {
collapseWhitespace: true,
collapseInlineTagWhitespace: true,
removeCDATASectionsFromCDATA: true,
removeComments: true,
removeCommentsFromCDATA: true,
removeScriptTypeAttributes: true,
removeStyleLinkTypeAttributes: true,
useShortDoctype: true
}
})
]
// ======
// Rules.
// ======
const cssRuleForDev = {
test: /\.css$/,
use: [
'style-loader',
'css-loader',
'postcss-loader'
]
}
const cssRuleForProd = {
test: /\.css$/,
use: [
MiniCssExtractPlugin.loader,
'css-loader',
'postcss-loader'
]
}
const jsRule = {
test: /\.js$/,
use: 'babel-loader'
}
// ==================
// Split "vendor" JS.
// ==================
const optimization = {
splitChunks: {
cacheGroups: {
vendor: {
chunks: 'all',
enforce: true,
name: 'vendor',
test: /node_modules/
}
}
}
}
// ====================
// Entry: Source files.
// ====================
const entry = {
/*
NOTE:
- Demo is not used for distribution.
- Index is not used for local demo.
It is easier from a config standpoint
to just keep them in the same `entry`.
*/
demo: './source/demo.js',
index: './source/index.js'
}
// ====================
// Output: Build files.
// ====================
const output = {
path: path.join(__dirname, 'build'),
filename: '[name].js'
}
// =======
// Config.
// =======
const config = {
// Shared.
entry,
optimization,
output,
plugins,
// Rules.
module: {
rules: [
jsRule
]
}
}
// =======
// Export.
// =======
module.exports = (env, args = {}) => {
// Get rules.
const rules = config.module.rules
// Production?
if (args.mode === 'production') {
rules.push(cssRuleForProd)
} else {
rules.push(cssRuleForDev)
}
// Expose object.
return config
}