feat(cli): run Deno on 'brisa start' when output is 'deno'

packages/brisa/src/bin/index.test.ts

@@ -1194,8 +1194,6 @@ describe('Brisa CLI', () => {
       { stdio: 'ignore' },
     ]);
 
-    expect(mockLog.mock.calls.flat().join('')).toContain(`Runtime on Bun.js`);
-
     expect(mockSpawnSync.mock.calls[1]).toEqual([
       'bun',
       [SERVE_PATH, '3005', 'PROD'],
@@ -1214,15 +1212,39 @@ describe('Brisa CLI', () => {
 
     await cli.main(options);
 
-    expect(mockLog.mock.calls.flat().join('')).toContain(`Runtime on Node.js`);
-
     expect(mockSpawnSync.mock.calls[1]).toEqual([
       'node',
       [SERVE_PATH, '3000', 'PROD'],
       prodOptions,
     ]);
   });
 
+  it('should "bun start" call "deno" when output is "deno"', async () => {
+    process.argv = ['bun', 'brisa', 'start'];
+
+    mock.module(path.join(FIXTURES, 'brisa.config.ts'), () => ({
+      default: {
+        output: 'deno',
+      },
+    }));
+
+    await cli.main(options);
+
+    expect(mockSpawnSync.mock.calls[1]).toEqual([
+      'deno',
+      [
+        'run',
+        '--allow-net',
+        '--allow-read',
+        '--allow-env',
+        SERVE_PATH,
+        '3000',
+        'PROD',
+      ],
+      prodOptions,
+    ]);
+  });
+
   it('should execute "brisa start --help" command', async () => {
     process.argv = ['bun', 'brisa', 'start', '--help'];
 

packages/brisa/src/bin/index.ts

@@ -44,7 +44,6 @@ const buildStandaloneFilePath = path.join(
 const serveFilepath = path.join(outPath, 'cli', 'serve', 'index.js');
 const MOBILE_OUTPUTS = new Set(['android', 'ios']);
 const TAURI_OUTPUTS = new Set(['android', 'ios', 'desktop']);
-const INFO = blueLog('[ info ] ') + ' ';
 
 async function main({
   currentBunVersion,
@@ -317,15 +316,20 @@ async function main({
             return process.exit(0);
         }
       }
-      const isNode = OUTPUT === 'node';
-      const exec = isNode ? 'node' : BUN_EXEC;
-      console.log(
-        INFO,
-        `🚀 Brisa ${version}: Runtime on ` +
-          (isNode ? `Node.js ${process.version}` : `Bun.js ${Bun.version}`),
-      );
 
-      cp.spawnSync(exec, [serveFilepath, PORT.toString(), 'PROD'], prodOptions);
+      const runtimeStartCmd = {
+        node: ['node'],
+        deno: ['deno', 'run', '--allow-net', '--allow-read', '--allow-env'],
+      }[OUTPUT] ?? [BUN_EXEC];
+
+      const cmd = runtimeStartCmd[0];
+      const options = [serveFilepath, PORT.toString(), 'PROD'];
+      const rest =
+        runtimeStartCmd.length > 1
+          ? [...runtimeStartCmd.slice(1), ...options]
+          : options;
+
+      cp.spawnSync(cmd, rest, prodOptions);
     }
 
     // Add integrations like mdx, tailwindcss, etc

packages/brisa/src/build-utils/create-deno-json/index.test.ts

@@ -27,6 +27,7 @@ describe('createDenoJSON', () => {
       imports: {
         'fs/promises': 'node:fs/promises',
         path: 'node:path',
+        child_process: 'node:child_process',
       },
       permissions: {
         read: true,
@@ -56,6 +57,7 @@ describe('createDenoJSON', () => {
       imports: {
         'fs/promises': 'node:fs/promises',
         path: 'node:path',
+        child_process: 'node:child_process',
       },
       permissions: {
         read: false,
@@ -91,6 +93,7 @@ describe('createDenoJSON', () => {
       imports: {
         'fs/promises': 'node:fs/promises',
         path: 'node:path',
+        child_process: 'node:child_process',
         cluster: 'node:cluster',
       },
       permissions: {

packages/brisa/src/build-utils/create-deno-json/index.ts

@@ -17,6 +17,7 @@ function getDenoJSON() {
     imports: {
       'fs/promises': 'node:fs/promises',
       path: 'node:path',
+      child_process: 'node:child_process',
     },
     permissions: {
       read: true,

packages/brisa/src/cli/build.ts

@@ -6,7 +6,7 @@ import byteSizeToString from '@/utils/byte-size-to-string';
 import { logTable, generateStaticExport } from './build-utils';
 import compileBrisaInternalsToDoBuildPortable from '@/utils/compile-serve-internals-into-build';
 import { log } from '@/utils/log/log-build';
-import runtimeVersion from '@/utils/runtime-version';
+import { runtimeVersion } from '@/utils/js-runtime-util';
 import { createDenoJSON } from '@/build-utils/create-deno-json';
 
 const outputText = {

packages/brisa/src/cli/serve/index.tsx

@@ -8,9 +8,9 @@ import { logError } from '@/utils/log/log-build';
 import nodeServe from './node-serve';
 import handler from './node-serve/handler';
 import bunServe from './bun-serve';
+import { runtimeVersion } from '@/utils/js-runtime-util';
 
-const { LOG_PREFIX, JS_RUNTIME } = constants;
-const isNode = JS_RUNTIME === 'node';
+const { LOG_PREFIX, JS_RUNTIME, VERSION, IS_PRODUCTION } = constants;
 
 async function init(options: ServeOptions) {
   if (cluster.isPrimary && constants.CONFIG?.clustering) {
@@ -43,18 +43,22 @@ async function init(options: ServeOptions) {
   }
 
   try {
-    const serve = isNode
-      ? nodeServe.bind(null, { port: Number(options.port) })
-      : bunServe.bind(null, options);
+    const serve =
+      JS_RUNTIME === 'bun'
+        ? bunServe.bind(null, options)
+        : nodeServe.bind(null, { port: Number(options.port) });
 
     const { hostname, port } = await serve();
+    const runtimeMsg = `🚀 Brisa ${VERSION}: Runtime on ${runtimeVersion(JS_RUNTIME)}`;
     const listeningMsg = `listening on http://${hostname}:${port}`;
-
-    if (!constants.CONFIG?.clustering) {
-      console.log(LOG_PREFIX.INFO, listeningMsg);
-    }
-
-    cluster.worker?.send(listeningMsg);
+    const log =
+      constants.CONFIG?.clustering && cluster.worker
+        ? cluster.worker.send.bind(cluster.worker)
+        : console.log.bind(console, LOG_PREFIX.INFO);
+
+    // In DEV this log is the first line on build (dev = build + serve)
+    if (IS_PRODUCTION) log(runtimeMsg);
+    log(listeningMsg);
   } catch (error) {
     const { message } = error as Error;
 

packages/brisa/src/utils/runtime-version/index.test.ts → packages/brisa/src/utils/js-runtime-util/index.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it, beforeEach, afterEach } from 'bun:test';
-import runtimeVersion from '.';
+import { runtimeVersion } from '.';
 
 describe('runtimeVersion', () => {
   beforeEach(() => {

packages/brisa/src/utils/js-runtime-util/index.ts

@@ -0,0 +1,26 @@
+import type { InternalConstants } from '../../types';
+
+export function runtimeVersion(jsRuntime: InternalConstants['JS_RUNTIME']) {
+  if (jsRuntime === 'node') {
+    return `Node.js ${process.version}`;
+  }
+  if (jsRuntime === 'deno') {
+    // @ts-ignore
+    return `Deno ${Deno.version.deno}`;
+  }
+
+  return `Bun.js ${Bun.version}`;
+}
+
+export function getRuntime() {
+  if (typeof Bun !== 'undefined') {
+    return 'bun';
+  }
+
+  // @ts-ignore
+  if (typeof Deno !== 'undefined') {
+    return 'deno';
+  }
+
+  return 'node';
+}

packages/brisa/src/utils/load-constants/index.ts

@@ -10,6 +10,7 @@ import {
   yellowLog,
 } from '../log/log-color';
 import { version } from '../../../package.json';
+import { getRuntime } from '../js-runtime-util';
 
 const WIN32_SEP_REGEX = /\\/g;
 const PAGE_404 = '/_404';
@@ -61,7 +62,7 @@ export function internalConstants(): InternalConstants {
 
   return {
     WORKSPACE,
-    JS_RUNTIME: typeof Bun !== 'undefined' ? 'bun' : 'node',
+    JS_RUNTIME: getRuntime(),
     PAGE_404,
     PAGE_500,
     VERSION: version,