fix restarting subprocs

src/webapp/server.ts

@@ -14,7 +14,13 @@ import { apps, isApp, appDir, isStaticApp, webappLog } from "./utils"
 export type Handler = (r: Context) => string | Child | Response | Promise<Response>
 export type App = Hono | Handler
 
-const processes = new Map<string, { port: string, proc: ReturnType<typeof Bun.spawn> }>()
+type ProcInfo = {
+    port: string,
+    proc: ReturnType<typeof Bun.spawn>,
+    killed?: boolean
+}
+
+const processes = new Map<string, ProcInfo>()
 const restarting = new Set<string>()
 const STARTING_PORT = 10000
 let nextPort = STARTING_PORT
@@ -67,8 +73,9 @@ async function startApp(name: string): Promise<string | undefined> {
         stderr: "inherit",
     })
 
-    processes.set(name, { port, proc })
+    const info: ProcInfo = { port, proc }
-    proc.exited.then(() => restartApp(name))
+    processes.set(name, info)
+    proc.exited.then(code => !info.killed && code !== 0 ? restartApp(name) : {})
 
     await Bun.sleep(100) // give it time before first request
 
@@ -89,13 +96,15 @@ export async function shutdownWebapps() {
     wwwWatcher?.close()
     nextPort = STARTING_PORT
 
-    for (const [name, { port, proc }] of processes) {
+    for (const [name, proc] of processes) {
         webappLog(name, "Shutting down")
-        try { proc.kill() } catch { }
+        try {
+            proc.killed = true
+            proc.proc.kill()
+        } catch { }
     }
 
     processes.clear()
-    process.exit(0)
 }
 
 async function restartApp(name: string) {
@@ -107,7 +116,10 @@ async function restartApp(name: string) {
     webappLog(name, "restarting")
     const existing = processes.get(name)
     if (existing) {
-        try { existing.proc.kill() } catch { }
+        try {
+            existing.killed = true
+            existing.proc.kill()
+        } catch { }
         processes.delete(name)
     }
 
@@ -121,7 +133,6 @@ async function startSubprocs() {
     await Promise.all(list.map(app => startApp(app)))
 }
 
-
 let wwwWatcher: any
 function startWatcher() {
     if (!expectDir(NOSE_DIR)) return