OpenTUI is here (#2685)

packages/opencode/src/cli/upgrade.ts

@@ -0,0 +1,17 @@
+import { Bus } from "@/bus"
+import { Config } from "@/config/config"
+import { Flag } from "@/flag/flag"
+import { Installation } from "@/installation"
+
+export async function upgrade() {
+  const config = await Config.global()
+  if (config.autoupdate === false || Flag.OPENCODE_DISABLE_AUTOUPDATE) return
+  const latest = await Installation.latest().catch(() => {})
+  if (!latest) return
+  if (Installation.VERSION === latest) return
+  const method = await Installation.method()
+  if (method === "unknown") return
+  await Installation.upgrade(method, latest)
+    .then(() => Bus.publish(Installation.Event.Updated, { version: latest }))
+    .catch(() => {})
+}