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webpack.config.js
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webpack.config.js
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const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const TerserPlugin = require('terser-webpack-plugin');
const rtlcss = require('rtlcss');
const useExternalCss =
process.env.CARBON_REACT_STORYBOOK_USE_EXTERNAL_CSS === 'true';
const useStyleSourceMap =
process.env.CARBON_REACT_STORYBOOK_USE_STYLE_SOURCEMAP === 'true';
const useRtl = process.env.CARBON_REACT_STORYBOOK_USE_RTL === 'true';
const styleLoaders = [
{
loader: 'css-loader',
options: {
importLoaders: 2,
sourceMap: useStyleSourceMap,
},
},
{
loader: 'postcss-loader',
options: {
plugins: () => {
const autoPrefixer = require('autoprefixer')({
overrideBrowserslist: ['last 1 version', 'ie >= 11'],
});
return !useRtl ? [autoPrefixer] : [autoPrefixer, rtlcss];
},
sourceMap: useStyleSourceMap,
},
},
{
loader: 'sass-loader',
options: {
includePaths: [path.resolve(__dirname, '..', 'node_modules')],
data: `
$feature-flags: (
ui-shell: true,
);
`,
sourceMap: useStyleSourceMap,
},
},
];
class FeatureFlagProxyPlugin {
/**
* A WebPack resolver plugin that proxies module request
* for `carbon-components/es/globals/js/settings` to `./settings`.
*/
constructor() {
this.source = 'before-described-relative';
}
apply(resolver) {
resolver.plugin(this.source, (request, callback) => {
if (/[\\/]globals[\\/]js[\\/]settings$/.test(request.path)) {
request.path = path.resolve(__dirname, './settings');
}
callback();
});
}
}
module.exports = ({ config, mode }) => {
config.devtool = useStyleSourceMap ? 'source-map' : '';
config.optimization = {
...config.optimization,
minimizer: [
new TerserPlugin({
sourceMap: true,
terserOptions: {
mangle: false,
},
}),
],
};
config.module.rules.push({
test: /-story\.jsx?$/,
loaders: [
{
loader: require.resolve('@storybook/addon-storysource/loader'),
options: {
prettierConfig: {
parser: 'babylon',
printWidth: 80,
tabWidth: 2,
bracketSpacing: true,
trailingComma: 'es5',
singleQuote: true,
},
},
},
],
enforce: 'pre',
});
config.module.rules.push({
test: /\.scss$/,
sideEffects: true,
use: [
{ loader: useExternalCss ? MiniCssExtractPlugin.loader : 'style-loader' },
...styleLoaders,
],
});
if (useExternalCss) {
config.plugins.push(
new MiniCssExtractPlugin({
filename: '[name].[contenthash].css',
})
);
}
config.resolve = {
modules: ['node_modules'],
plugins: [new FeatureFlagProxyPlugin()],
};
return config;
};