Add support for trustedFolders.json config file (#6073)

packages/cli/src/ui/hooks/useFolderTrust.ts

@@ -5,24 +5,39 @@
  */
 
 import { useState, useCallback } from 'react';
-import { LoadedSettings, SettingScope } from '../../config/settings.js';
+import { type Config } from '@google/gemini-cli-core';
+import { LoadedSettings } from '../../config/settings.js';
 import { FolderTrustChoice } from '../components/FolderTrustDialog.js';
+import { loadTrustedFolders, TrustLevel } from '../../config/trustedFolders.js';
+import * as process from 'process';
 
-export const useFolderTrust = (settings: LoadedSettings) => {
+export const useFolderTrust = (settings: LoadedSettings, config: Config) => {
   const [isFolderTrustDialogOpen, setIsFolderTrustDialogOpen] = useState(
-    !!settings.merged.folderTrustFeature &&
-      // TODO: Update to avoid showing dialog for folders that are trusted.
-      settings.merged.folderTrust === undefined,
+    config.isTrustedFolder() === undefined,
   );
 
-  const handleFolderTrustSelect = useCallback(
-    (_choice: FolderTrustChoice) => {
-      // TODO: Store folderPath in the trusted folders config file based on the choice.
-      settings.setValue(SettingScope.User, 'folderTrust', true);
-      setIsFolderTrustDialogOpen(false);
-    },
-    [settings],
-  );
+  const handleFolderTrustSelect = useCallback((choice: FolderTrustChoice) => {
+    const trustedFolders = loadTrustedFolders();
+    const cwd = process.cwd();
+    let trustLevel: TrustLevel;
+
+    switch (choice) {
+      case FolderTrustChoice.TRUST_FOLDER:
+        trustLevel = TrustLevel.TRUST_FOLDER;
+        break;
+      case FolderTrustChoice.TRUST_PARENT:
+        trustLevel = TrustLevel.TRUST_PARENT;
+        break;
+      case FolderTrustChoice.DO_NOT_TRUST:
+        trustLevel = TrustLevel.DO_NOT_TRUST;
+        break;
+      default:
+        return;
+    }
+
+    trustedFolders.setValue(cwd, trustLevel);
+    setIsFolderTrustDialogOpen(false);
+  }, []);
 
   return {
     isFolderTrustDialogOpen,