From fa459c45eba08edb845d2457b8406fa9eeb6499e Mon Sep 17 00:00:00 2001
From: Chris Wanstrath <2+defunkt@users.noreply.github.com>
Date: Tue, 27 Jan 2026 14:53:05 -0800
Subject: [PATCH] hot

---
 TODO.txt                  |  3 ++-
 apps/basic/package.json   |  2 +-
 apps/profile/index.tsx    |  5 +---
 apps/profile/package.json |  2 +-
 src/server/index.tsx      | 52 ++++++++++++++++++++++++++++-----------
 5 files changed, 43 insertions(+), 21 deletions(-)

diff --git a/TODO.txt b/TODO.txt
index 24cef74..80e7bb5 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -6,7 +6,8 @@
 [x] scans for apps/**/package.json, scripts.toes
 [x] runs that for each, giving it a PORT
 [x] has GET / page that shows all the running apps/status/port
-[ ] watch each app and restart it on update
+[x] watch each app and restart it on update
+[x] watches for and adds/removes apps
 
 ## cli
 
diff --git a/apps/basic/package.json b/apps/basic/package.json
index 6fe680b..e8be2ee 100644
--- a/apps/basic/package.json
+++ b/apps/basic/package.json
@@ -4,7 +4,7 @@
   "type": "module",
   "private": true,
   "scripts": {
-    "toes": "bun start",
+    "toes": "bun run --watch index.tsx",
     "start": "bun run index.tsx",
     "dev": "bun run --hot index.tsx"
   },
diff --git a/apps/profile/index.tsx b/apps/profile/index.tsx
index a7920b0..62cb5cb 100644
--- a/apps/profile/index.tsx
+++ b/apps/profile/index.tsx
@@ -2,9 +2,6 @@ import { Hype } from 'hype'
 
 const app = new Hype
 
-app.get('/', c => c.html(<h1>Hi there!</h1>))
-
-const apps = () => {
-}
+app.get('/', c => c.html(<h1>My Profile!!!</h1>))
 
 export default app.defaults
diff --git a/apps/profile/package.json b/apps/profile/package.json
index 6fe680b..e8be2ee 100644
--- a/apps/profile/package.json
+++ b/apps/profile/package.json
@@ -4,7 +4,7 @@
   "type": "module",
   "private": true,
   "scripts": {
-    "toes": "bun start",
+    "toes": "bun run --watch index.tsx",
     "start": "bun run index.tsx",
     "dev": "bun run --hot index.tsx"
   },
diff --git a/src/server/index.tsx b/src/server/index.tsx
index 5d04e6e..2dba9cf 100644
--- a/src/server/index.tsx
+++ b/src/server/index.tsx
@@ -1,6 +1,6 @@
-import { Subprocess } from 'bun'
+import type { Subprocess } from 'bun'
 import { Hype } from 'hype'
-import { readdirSync, readFileSync } from 'fs'
+import { existsSync, readdirSync, readFileSync, watch } from 'fs'
 import { join } from 'path'
 
 const APPS_DIR = join(process.env.DATA_DIR ?? '.', 'apps')
@@ -13,14 +13,14 @@ type RunningApp = {
 
 const runningApps = new Map<string, RunningApp>()
 
-const err = (app: string, ...msg: string[]) => 
+const err = (app: string, ...msg: string[]) =>
   console.error('🐾', `${app}:`, ...msg)
 
-const info = (app: string, ...msg: string[]) => 
+const info = (app: string, ...msg: string[]) =>
   console.log('🐾', `${app}:`, ...msg)
 
-const log = (app: string, ...msg: string[]) => 
-  console.log('🐾', `${app}»`, ...msg)
+const log = (app: string, ...msg: string[]) =>
+  console.log(`<${app}>`, ...msg)
 
 const appNames = () => {
   return readdirSync(APPS_DIR, { withFileTypes: true })
@@ -67,16 +67,20 @@ const loadApp = (dir: string) => {
   }
 }
 
-const runApp = (dir: string, port: number) => {
+const runApp = async (dir: string, port: number) => {
   const pkg = loadApp(dir)
   if (!pkg.scripts?.toes) return
 
   const cwd = join(APPS_DIR, dir)
-  const cmd = ['bun', 'run', 'toes']
+
+  const needsInstall = !existsSync(join(cwd, 'node_modules'))
+  if (needsInstall) info(dir, 'Installing dependencies...')
+  const install = Bun.spawn(['bun', 'install'], { cwd, stdout: 'pipe', stderr: 'pipe' })
+  await install.exited
 
   info(dir, `Starting on port ${port}...`)
 
-  const proc = Bun.spawn(cmd, {
+  const proc = Bun.spawn(['bun', 'run', 'toes'], {
     cwd,
     env: { ...process.env, PORT: String(port) },
     stdout: 'pipe',
@@ -105,15 +109,15 @@ const runApp = (dir: string, port: number) => {
 
   // Handle process exit
   proc.exited.then(code => {
-    if (code !== 0) 
+    if (code !== 0)
       err(dir, `Exited with code ${code}`)
-     else 
+    else
       info(dir, 'Stopped')
     runningApps.delete(dir)
   })
 }
 
-const getRunningApps = () => 
+const getRunningApps = () =>
   Array.from(runningApps.values()).map(({ name, port }) => ({ name, port }))
 
 const stopApp = (dir: string) => {
@@ -124,9 +128,27 @@ const stopApp = (dir: string) => {
   }
 }
 
-console.log('🐾 Toes!')
-runApps()
+const watchAppsDir = () => {
+  watch(APPS_DIR, (event, filename) => {
+    console.log('apps dir')
+    if (!filename) return
 
+    if (isApp(filename) && !runningApps.has(filename)) {
+      const port = getPort()
+      runApp(filename, port)
+    }
+
+    if (runningApps.has(filename) && !isApp(filename))
+      stopApp(filename)
+  })
+}
+
+const startup = () => {
+  console.log('🐾 Toes!')
+
+  runApps()
+  watchAppsDir()
+}
 
 const app = new Hype()
 
@@ -139,5 +161,7 @@ app.get('/', c => {
   )
 })
 
+startup()
+
 export { getRunningApps, stopApp }
 export default app.defaults