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/**
*WARNING: No ES6 modules here. Not transpiled! ****
*/
const path = require( 'path' );
const getBaseWebpackConfig = require( '@automattic/calypso-build/webpack.config.js' );
const DependencyExtractionWebpackPlugin = require( '@wordpress/dependency-extraction-webpack-plugin' );
const webpack = require( 'webpack' );
const { BundleAnalyzerPlugin } = require( 'webpack-bundle-analyzer' );
/**
* Internal variables
*/
const isDevelopment = process.env.NODE_ENV !== 'production';
const shouldEmitStats = process.env.EMIT_STATS && process.env.EMIT_STATS !== 'false';
/**
* Return a webpack config object
*
* Arguments to this function replicate webpack's so this config can be used on the command line,
* with individual options overridden by command line args. Note that webpack-cli seems to convert
* kebab-case (like `--ouput-path`) to camelCase (`outputPath`)
* @see {@link https://webpack.js.org/configuration/configuration-types/#exporting-a-function}
* @see {@link https://webpack.js.org/api/cli/}
* @param {Object} env environment options
* @param {Object} argv options map
* @param {Object} argv.entry Entry point(s)
* @param {string} argv.outputPath Output path
* @param {string} argv.outputFilename Output filename pattern
* @returns {Object} webpack config
*/
function getWebpackConfig(
env = { WP: true },
{
entry = {
'default.editor': path.join( __dirname, 'src', 'default', 'editor' ),
'default.view': path.join( __dirname, 'src', 'default', 'view' ),
'wpcom.editor': path.join( __dirname, 'src', 'wpcom', 'editor' ),
},
outputPath = path.join( __dirname, 'dist' ),
outputFilename = isDevelopment ? '[name].js' : '[name].min.js',
}
) {
const webpackConfig = getBaseWebpackConfig( env, {
entry,
'output-filename': outputFilename,
'output-path': outputPath,
} );
return {
...webpackConfig,
devtool: isDevelopment ? 'inline-cheap-source-map' : 'source-map',
optimization: {
...webpackConfig.optimization,
// disable module concatenation so that instances of `__()` are not renamed
concatenateModules: false,
},
plugins: [
...webpackConfig.plugins.filter(
( plugin ) => plugin.constructor.name !== 'DependencyExtractionWebpackPlugin'
),
/**
* This is needed for import-ing ThemeUpgradeModal,
* which is directly due to the use of NODE_DEBUG in the package called `util`.
*/
new webpack.DefinePlugin( {
'process.env.NODE_DEBUG': JSON.stringify( process.env.NODE_DEBUG || false ),
} ),
new DependencyExtractionWebpackPlugin( {
requestToExternal( request ) {
if ( request === 'tinymce/tinymce' ) {
return 'tinymce';
}
// Force bundling the React JSX runtime packages so that we don't have a missing `react-jsx-runtime`
// dependency on older WordPress versions that don't ship it yet.
if ( request === 'react/jsx-runtime' || request === 'react/jsx-dev-runtime' ) {
// returning null means don't externalize;
// returning undefined means call the default `requestToExternal`, which _would_ externalize `react-jsx-runtime`.
return null;
}
},
requestToHandle( request ) {
if ( request === 'tinymce/tinymce' ) {
return 'wp-tinymce';
}
},
} ),
shouldEmitStats &&
new BundleAnalyzerPlugin( {
analyzerMode: 'server',
statsOptions: {
source: false,
reasons: false,
optimizationBailout: false,
chunkOrigins: false,
chunkGroups: true,
},
} ),
],
};
}
module.exports = getWebpackConfig;
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