kirbyup/dist/node/plugins/hmr.js

Zero-config bundler for Kirby Panel plugins

import { __INJECTED_HMR_CODE__, isHmrRuntimeId } from "./utils.js";
import * as fs from "node:fs";
import * as fsp from "node:fs/promises";
import { resolve } from "pathe";
import { detectPackageManager } from "nypm";

//#region src/node/plugins/hmr.ts
function kirbyupHmrPlugin(options) {
	let config;
	let entry;
	let devIndexPath;
	return {
		name: "kirbyup:hmr",
		apply: "serve",
		configResolved(resolvedConfig) {
			config = resolvedConfig;
			entry = resolve(config.root, options.entry);
			devIndexPath = resolve(config.root, options.outDir || "", "index.dev.mjs");
		},
		transform(code, id) {
			if (isHmrRuntimeId(id)) return code.replace(/^.*=\s*record\.Ctor\.super\.extend\(options\)/m, "$_applyKirbyModifications(record.Ctor.options, options) // injected by kirbyup\n$&") + __INJECTED_HMR_CODE__;
		},
		configureServer(server) {
			if (!server.httpServer) return;
			server.httpServer.once("listening", async () => {
				const entryPath = entry.replace(`${config.root}/`, "");
				const { address, family, port } = server.httpServer.address();
				const baseUrl = `http://${family === "IPv6" ? `[${address}]` : address}:${port}${config.base}`;
				const entryUrl = new URL(entryPath, baseUrl).href;
				const pm = await detectPackageManager(config.root);
				await fsp.writeFile(devIndexPath, getViteProxyModule(entryUrl, pm));
			});
		},
		closeBundle() {
			if (fs.existsSync(devIndexPath)) fs.unlinkSync(devIndexPath);
		}
	};
}
/**
* Proxy the JS file to "forward" the plugin script loaded by Kirby to the Vite server
*/
function getViteProxyModule(entryUrl, packageManager) {
	const pm = packageManager?.name || "npm";
	return `
try {
  await import("${entryUrl}");
} catch (err) {
  console.error(
    "[kirbyup] Couldn't connect to the development server. Run \`${pm} run serve\` to start Vite or build the plugin with \`${pm} run build\` so Kirby uses the production version."
  );
  throw err;
}
`.trimStart();
}

//#endregion
export { kirbyupHmrPlugin as default };