add option in dev menu to start processes

Author: Hweinstock

packages/core/src/dev/activation.ts

@@ -24,6 +24,7 @@ import { getSessionId } from '../shared/telemetry/util'
 import { NotificationsController } from '../notifications/controller'
 import { DevNotificationsState } from '../notifications/types'
 import { QuickPickItem } from 'vscode'
+import { ChildProcess } from '../shared/utilities/processUtils'
 
 interface MenuOption {
     readonly label: string
@@ -44,6 +45,7 @@ export type DevFunction =
     | 'editAuthConnections'
     | 'notificationsSend'
     | 'forceIdeCrash'
+    | 'startChildProcess'
 
 export type DevOptions = {
     context: vscode.ExtensionContext
@@ -126,6 +128,11 @@ const menuOptions: () => Record<DevFunction, MenuOption> = () => {
             detail: `Will SIGKILL ExtHost, { pid: ${process.pid}, sessionId: '${getSessionId().slice(0, 8)}-...' }, but the IDE itself will not crash.`,
             executor: forceQuitIde,
         },
+        startChildProcess: {
+            label: 'ChildProcess: Start child process',
+            detail: 'start a ChildProcess manually that is invoked through our wrapper',
+            executor: startChildProcess,
+        },
     }
 }
 
@@ -578,3 +585,15 @@ async function editNotifications() {
         await targetNotificationsController.pollForEmergencies()
     })
 }
+
+async function startChildProcess() {
+    const result = await createInputBox({
+        title: 'Enter a command',
+    }).prompt()
+    if (result) {
+        const [command, ...args] = result?.toString().split(' ') ?? []
+        getLogger().info(`Starting child process: '${command}'`)
+        const processResult = await ChildProcess.run(command, args, { collect: true })
+        getLogger().info(`Child process exited with code ${processResult.exitCode}`)
+    }
+}

packages/core/src/shared/utilities/processUtils.ts

@@ -63,13 +63,14 @@ export interface ChildProcessResult {
 
 export const eof = Symbol('EOF')
 
-export class ChildProcessTracker extends Map<number, ChildProcess> {
-    static pollingInterval: number = 5000
+class ChildProcessTracker extends Map<number, ChildProcess> {
+    static pollingInterval: number = 1000
     #processPoller: PollingSet<number>
 
     public constructor() {
         super()
-        this.#processPoller = new PollingSet(ChildProcessTracker.pollingInterval, () => {})
+        this.#processPoller = new PollingSet(ChildProcessTracker.pollingInterval, () => this.monitorProcesses())
+        getLogger().debug(`ChildProcessTracker created with polling interval: ${ChildProcessTracker.pollingInterval}`)
     }
 
     private cleanUpProcesses() {
@@ -94,7 +95,7 @@ export class ChildProcessTracker extends Map<number, ChildProcess> {
     }
 
     public override set(key: number, value: ChildProcess): this {
-        this.#processPoller.add(key)
+        this.#processPoller.start(key)
         super.set(key, value)
         return this
     }