Add runtime selection feature between Bun and Node.js

apps/cli/src/helpers/runtime-setup.ts

@@ -0,0 +1,94 @@
+import path from "node:path";
+import fs from "fs-extra";
+import type { Runtime } from "../types";
+import { addPackageDependency } from "../utils/add-package-deps";
+
+export async function setupRuntime(
+	projectDir: string,
+	runtime: Runtime,
+): Promise<void> {
+	const serverDir = path.join(projectDir, "apps/server");
+	const serverIndexPath = path.join(serverDir, "src/index.ts");
+
+	const indexContent = await fs.readFile(serverIndexPath, "utf-8");
+
+	if (runtime === "bun") {
+		await setupBunRuntime(serverDir, serverIndexPath, indexContent);
+	} else if (runtime === "node") {
+		await setupNodeRuntime(serverDir, serverIndexPath, indexContent);
+	}
+}
+
+async function setupBunRuntime(
+	serverDir: string,
+	serverIndexPath: string,
+	indexContent: string,
+): Promise<void> {
+	const packageJsonPath = path.join(serverDir, "package.json");
+	const packageJson = await fs.readJson(packageJsonPath);
+
+	packageJson.scripts = {
+		...packageJson.scripts,
+		dev: "bun run --hot src/index.ts",
+		start: "bun run dist/src/index.js",
+	};
+
+	await fs.writeJson(packageJsonPath, packageJson, { spaces: 2 });
+
+	addPackageDependency({
+		devDependencies: ["@types/bun"],
+		projectDir: serverDir,
+	});
+
+	if (!indexContent.includes("export default app")) {
+		const updatedContent = `${indexContent}\n\nexport default app;\n`;
+		await fs.writeFile(serverIndexPath, updatedContent);
+	}
+}
+
+async function setupNodeRuntime(
+	serverDir: string,
+	serverIndexPath: string,
+	indexContent: string,
+): Promise<void> {
+	addPackageDependency({
+		dependencies: ["@hono/node-server"],
+		devDependencies: ["tsx", "@types/node"],
+		projectDir: serverDir,
+	});
+
+	const packageJsonPath = path.join(serverDir, "package.json");
+	const packageJson = await fs.readJson(packageJsonPath);
+
+	packageJson.scripts = {
+		...packageJson.scripts,
+		dev: "tsx watch src/index.ts",
+		start: "node dist/src/index.js",
+	};
+
+	await fs.writeJson(packageJsonPath, packageJson, { spaces: 2 });
+
+	const importLine = 'import { serve } from "@hono/node-server";\n';
+	const serverCode = `
+serve(
+  {
+    fetch: app.fetch,
+    port: 3000,
+  },
+  (info) => {
+    console.log(\`Server is running on http://localhost:\${info.port}\`);
+  },
+);\n`;
+
+	if (!indexContent.includes("@hono/node-server")) {
+		const importEndIndex = indexContent.lastIndexOf("import");
+		const importSection = indexContent.substring(0, importEndIndex);
+		const restOfFile = indexContent.substring(importEndIndex);
+
+		const updatedContent = importSection + importLine + restOfFile + serverCode;
+		await fs.writeFile(serverIndexPath, updatedContent);
+	} else if (!indexContent.includes("serve(")) {
+		const updatedContent = indexContent + serverCode;
+		await fs.writeFile(serverIndexPath, updatedContent);
+	}
+}