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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/", 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;