migrate /about (#4207)

packages/cli/src/ui/commands/aboutCommand.ts

@@ -0,0 +1,43 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { getCliVersion } from '../../utils/version.js';
+import { SlashCommand } from './types.js';
+import process from 'node:process';
+import { MessageType, type HistoryItemAbout } from '../types.js';
+
+export const aboutCommand: SlashCommand = {
+  name: 'about',
+  description: 'show version info',
+  action: async (context) => {
+    const osVersion = process.platform;
+    let sandboxEnv = 'no sandbox';
+    if (process.env.SANDBOX && process.env.SANDBOX !== 'sandbox-exec') {
+      sandboxEnv = process.env.SANDBOX;
+    } else if (process.env.SANDBOX === 'sandbox-exec') {
+      sandboxEnv = `sandbox-exec (${
+        process.env.SEATBELT_PROFILE || 'unknown'
+      })`;
+    }
+    const modelVersion = context.services.config?.getModel() || 'Unknown';
+    const cliVersion = await getCliVersion();
+    const selectedAuthType =
+      context.services.settings.merged.selectedAuthType || '';
+    const gcpProject = process.env.GOOGLE_CLOUD_PROJECT || '';
+
+    const aboutItem: Omit<HistoryItemAbout, 'id'> = {
+      type: MessageType.ABOUT,
+      cliVersion,
+      osVersion,
+      sandboxEnv,
+      modelVersion,
+      selectedAuthType,
+      gcpProject,
+    };
+
+    context.ui.addItem(aboutItem, Date.now());
+  },
+};