feat: full implementation for .geminiignore in settings and respective tool calls (#3727)

packages/core/src/utils/bfsFileSearch.test.ts

@@ -145,4 +145,43 @@ describe('bfsFileSearch', () => {
     });
     expect(result).toEqual(['/test/subdir1/file1.txt']);
   });
+
+  it('should respect .geminiignore files', async () => {
+    const mockFs = vi.mocked(fsPromises);
+    const mockGitUtils = vi.mocked(gitUtils);
+
+    mockGitUtils.isGitRepository.mockReturnValue(false);
+
+    const mockReaddir = mockFs.readdir as unknown as ReaddirWithFileTypes;
+    vi.mocked(mockReaddir).mockImplementation(async (dir) => {
+      if (dir === '/test') {
+        return [
+          createMockDirent('.geminiignore', true),
+          createMockDirent('subdir1', false),
+          createMockDirent('subdir2', false),
+        ];
+      }
+      if (dir === '/test/subdir1') {
+        return [createMockDirent('file1.txt', true)];
+      }
+      if (dir === '/test/subdir2') {
+        return [createMockDirent('file1.txt', true)];
+      }
+      return [];
+    });
+
+    vi.mocked(fs).readFileSync.mockReturnValue('subdir2');
+
+    const fileService = new FileDiscoveryService('/test');
+    const result = await bfsFileSearch('/test', {
+      fileName: 'file1.txt',
+      fileService,
+      fileFilteringOptions: {
+        respectGitIgnore: true,
+        respectGeminiIgnore: true,
+      },
+    });
+
+    expect(result).toEqual(['/test/subdir1/file1.txt']);
+  });
 });