Import AITURK IDE 1.0.0-beta.1 from Hermes 63279301; preserve MIT license

apps/desktop/electron/backend-recycle.ts

@@ -0,0 +1,47 @@
+/**
+ * Recycle a Desktop-owned backend after a code-skew 503.
+ *
+ * Closing the local tunnel/child is not enough for SSH: `serve --isolated`
+ * detaches with setsid/nohup, so a reconnect would reuse the still-alive
+ * stale process via the lockfile. Kill the owned remote serve first (while
+ * the SSH channel can still exec), then tear down the local child — the
+ * same order as connection apply (#97046, #91668).
+ */
+
+export type RecycleOwnedBackendTarget = 'pool' | 'primary'
+
+export interface RecycleOwnedBackendDeps {
+  notifyApplied: () => void
+  primaryProfile: string
+  profile?: null | string
+  teardownPool: (profile: string) => Promise<void>
+  teardownPrimary: () => Promise<void>
+  teardownSsh: (profile: string) => Promise<void>
+}
+
+export function recycleOwnedBackendTarget(
+  profile: null | string | undefined,
+  primaryProfile: string
+): RecycleOwnedBackendTarget {
+  const key = String(profile ?? '').trim()
+
+  return !key || key === primaryProfile ? 'primary' : 'pool'
+}
+
+export async function recycleOwnedBackend(deps: RecycleOwnedBackendDeps): Promise<RecycleOwnedBackendTarget> {
+  const target = recycleOwnedBackendTarget(deps.profile, deps.primaryProfile)
+  const profile = String(deps.profile ?? '').trim()
+
+  if (target === 'primary') {
+    await deps.teardownSsh('')
+    await deps.teardownPrimary()
+    deps.notifyApplied()
+
+    return target
+  }
+
+  await deps.teardownSsh(profile)
+  await deps.teardownPool(profile)
+
+  return target
+}