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webpack.config.js
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webpack.config.js
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const { resolve } = require('path');
var glob = require('glob');
var path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { ESBuildMinifyPlugin } = require('esbuild-loader');
const { ProvidePlugin, BannerPlugin } = require('webpack');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');
const isProd = process.env.NODE_ENV === 'production';
const isDevelopment = !isProd;
const fastRefresh = isDevelopment ? new ReactRefreshWebpackPlugin() : null;
const SANDBOX_SUFFIX = '-sandbox';
const config = {
mode: isProd ? 'production' : 'development',
entry: glob.sync('./src/widgets/**.tsx').reduce(function (obj, el) {
obj[path.parse(el).name] = el;
obj[path.parse(el).name + SANDBOX_SUFFIX] = el;
return obj;
}, {}),
output: {
path: resolve(__dirname, 'dist'),
filename: `[name].js`,
publicPath: '',
},
resolve: {
extensions: ['.js', '.jsx', '.ts', '.tsx'],
},
module: {
rules: [
{
test: /\.(ts|tsx|jsx|js)?$/,
loader: 'esbuild-loader',
options: {
loader: 'tsx',
target: 'es2020',
minify: false,
},
},
{
test: /\.css$/i,
use: [
MiniCssExtractPlugin.loader,
{ loader: 'css-loader', options: { url: false } },
'postcss-loader',
],
},
],
},
plugins: [
new HtmlWebpackPlugin({
templateContent: `
<body></body>
<script type="text/javascript">
const urlSearchParams = new URLSearchParams(window.location.search);
const queryParams = Object.fromEntries(urlSearchParams.entries());
const widgetName = queryParams["widgetName"];
if (widgetName == undefined) {document.body.innerHTML+="Widget ID not specified."}
const s = document.createElement('script');
s.type = "module";
s.src = widgetName+"${SANDBOX_SUFFIX}.js";
document.body.appendChild(s);
</script>
`,
filename: 'index.html',
inject: false,
}),
new ProvidePlugin({
React: 'react',
reactDOM: 'react-dom',
}),
new BannerPlugin({
banner: (file) => {
return !file.chunk.name.includes(SANDBOX_SUFFIX) ? 'const IMPORT_META=import.meta;' : '';
},
raw: true,
}),
new CopyPlugin({
patterns: [
{from: 'public', to: ''},
{from: 'README.md', to: ''},
{from: 'src/snippet.css', to: ''}
]
}),
fastRefresh,
].filter(Boolean),
};
if (isProd) {
config.optimization = {
minimize: isProd,
minimizer: [new ESBuildMinifyPlugin()],
};
} else {
// for more information, see https://webpack.js.org/configuration/dev-server
config.devServer = {
port: 8080,
open: true,
hot: true,
compress: true,
watchFiles: ['src/*'],
headers: {
'Access-Control-Allow-Origin': '*',
},
};
}
module.exports = config;