chore(release): v0.19.4

Co-authored-by: Brian de Alwis <bsd@acm.org>
Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

.gemini/commands/frontend.toml

@@ -0,0 +1,54 @@
+description="Injects context of all relevant cli files"
+prompt = """
+The source code contains the content of absolutely every source code file in
+packages/cli. In addition to the source code, the following test files are
+included as they are test files that conform to the project's testing standards:
+`packages/cli/src/ui/components/InputPrompt.test.tsx` and `packages/cli/src/ui/App.test.tsx`.
+You should very rarely need to read any other files from packages/cli to resolve
+prompts.
+
+!{find packages/cli -path packages/cli/dist -prune -o -type f \\( -name "*.ts" -o -name "*.tsx" \\) ! -name "*.test.ts" ! -name "*.test.tsx" ! -name "*.d.ts" -exec echo "--- {} ---" \\; -exec cat {} \\; && echo "--- packages/cli/src/ui/components/InputPrompt.test.tsx ---" && cat packages/cli/src/ui/components/InputPrompt.test.tsx && echo "--- packages/cli/src/ui/App.test.tsx ---" && cat packages/cli/src/ui/App.test.tsx}
+
+**Pay extremely close attention to these files.** They define the project's
+core architecture, component patterns, and testing standards.
+
+In addition to the code context, you MUST strictly adhere to the following frontend-specific development guidelines while adding code to packages/cli.
+
+## Testing Standards
+*   **Async Testing**: ALWAYS use `waitFor` from `packages/cli/src/test-utils/async.ts` instead of `vi.waitFor` to prevent flakiness and `act` warnings. NEVER use fixed waits (e.g., `await delay(100)`).
+*   **State Changes**: Wrap all blocks that change component state in `act`.
+*   **Snapshots**: Use `toMatchSnapshot` to verify rendering.
+*   **Rendering**: Use `render` or `renderWithProviders` from `packages/cli/src/test-utils/render.tsx` instead of `ink-testing-library` directly.
+*   **Mocking**:
+    *   Reuse existing mocks/fakes where possible.
+    *   **Parameterized Tests**: Use parameterized tests with explicit types to reduce duplication and ensure type safety.
+    *   Avoid mocking the file system, os, or child_process if at all possible; if you have to mock the Mock critical dependencies (`fs`, `os`, `child_process`) do so ONLY at the top of the file.
+
+## React & Ink Architecture
+*   **Keyboard Handling**: You MUST use `useKeyPress.ts` from Gemini CLI for keyboard handling, NOT the standard ink library. This is critical for supporting slow terminals and multiple events per frame.
+    *   Handle multiple events gracefully (often requires a reducer pattern, see `text-buffer.ts`).
+*   **State Management**:
+    *   NEVER trigger side effects from within the body of a `setState` callback. Use a reducer or `useRef` if necessary.
+    *   Initialize state explicitly (e.g., use `undefined` rather than `true` if unknown).
+*   **Performance**:
+    *   Avoid synchronous file I/O in components.
+    *   Do not introduce excessive property drilling; leverage or extend existing providers.
+
+## Configuration & Settings
+*   **Settings vs Args**: Use settings for user-configurable options; do not add new CLI arguments.
+*   **Schema**: Add new settings to `packages/cli/src/config/settingsSchema.ts`.
+*   **Documentation**:
+    *   If `showInDialog: true`, document in `docs/get-started/configuration.md`.
+    *   Ensure `requiresRestart` is correctly set.
+
+## Keyboard Shortcuts
+*   **Registration**: Define new shortcuts in `packages/cli/src/config/keyBindings.ts`.
+*   **Documentation**: Document all new shortcuts in `docs/cli/keyboard-shortcuts.md`.
+*   **Compatibility**: Avoid function keys and common VSCode shortcuts. Be cautious with `Meta` key (Mac-limited support).
+
+## General
+*   **Logging**: Use `debugLogger` for errors. NEVER leave `console.log/warn/error` in the code.
+*   **TypeScript**: Avoid the non-null assertion operator (`!`).
+
+{{args}}. 
+ """

.gemini/commands/full-context.toml

@@ -0,0 +1,57 @@
+description="Injects context of all relevant cli files"
+prompt = """
+The following output contains the complete
+source code of the gemini cli library (`packages/cli`), and {packages/core} and representative test files
+(`packages/cli/src/ui/components/InputPrompt.test.tsx` and `packages/cli/src/ui/App.test.tsx`) that best conform to the project's testing standards.
+**Pay extremely close attention to these files.** They define the project's
+core architecture, component patterns, and testing standards.
+
+The source code contains the content of absolutely every source code file in
+packages/cli and packages/core. In addition to the source code, the following test files are
+included as they are test files that conform to the project's testing standards:
+`packages/cli/src/ui/components/InputPrompt.test.tsx` and `packages/cli/src/ui/App.test.tsx`.
+You should very rarely need to read any other files from packages/cli to resolve
+prompts.
+
+!{find packages/cli packages/core \\( -path packages/cli/dist -o -path packages/core/dist -o -name node_modules \\) -prune -o -type f \\( -name "*.ts" -o -name "*.tsx" \\) ! -name "*.test.ts" ! -name "*.test.tsx" ! -name "*.d.ts" -exec echo "--- {} ---" \\; -exec cat {} \\; && echo "--- packages/cli/src/ui/components/InputPrompt.test.tsx ---" && cat packages/cli/src/ui/components/InputPrompt.test.tsx && echo "--- packages/cli/src/ui/App.test.tsx ---" && cat packages/cli/src/ui/App.test.tsx}
+
+In addition to the code context, you MUST strictly adhere to the following frontend-specific development guidelines when writing code in packages/cli.
+
+## Testing Standards
+*   **Async Testing**: ALWAYS use `waitFor` from `packages/cli/src/test-utils/async.ts` instead of `vi.waitFor` to prevent flakiness and `act` warnings. NEVER use fixed waits (e.g., `await delay(100)`).
+*   **State Changes**: Wrap all blocks that change component state in `act`.
+*   **Snapshots**: Use `toMatchSnapshot` to verify rendering.
+*   **Rendering**: Use `render` or `renderWithProviders` from `packages/cli/src/test-utils/render.tsx` instead of `ink-testing-library` directly.
+*   **Mocking**:
+    *   Reuse existing mocks/fakes where possible.
+    *   **Parameterized Tests**: Use parameterized tests with explicit types to reduce duplication and ensure type safety.
+    *   Avoid mocking the file system, os, or child_process if at all possible; if you have to mock the Mock critical dependencies (`fs`, `os`, `child_process`) do so ONLY at the top of the file.
+
+## React & Ink Architecture
+*   **Keyboard Handling**: You MUST use `useKeyPress.ts` from Gemini CLI for keyboard handling, NOT the standard ink library. This is critical for supporting slow terminals and multiple events per frame.
+    *   Handle multiple events gracefully (often requires a reducer pattern, see `text-buffer.ts`).
+*   **State Management**:
+    *   NEVER trigger side effects from within the body of a `setState` callback. Use a reducer or `useRef` if necessary.
+    *   Initialize state explicitly (e.g., use `undefined` rather than `true` if unknown).
+*   **Performance**:
+    *   Avoid synchronous file I/O in components.
+    *   Do not introduce excessive property drilling; leverage or extend existing providers.
+
+## Configuration & Settings
+*   **Settings vs Args**: Use settings for user-configurable options; do not add new CLI arguments.
+*   **Schema**: Add new settings to `packages/cli/src/config/settingsSchema.ts`.
+*   **Documentation**:
+    *   If `showInDialog: true`, document in `docs/get-started/configuration.md`.
+    *   Ensure `requiresRestart` is correctly set.
+
+## Keyboard Shortcuts
+*   **Registration**: Define new shortcuts in `packages/cli/src/config/keyBindings.ts`.
+*   **Documentation**: Document all new shortcuts in `docs/cli/keyboard-shortcuts.md`.
+*   **Compatibility**: Avoid function keys and common VSCode shortcuts. Be cautious with `Meta` key (Mac-limited support).
+
+## General
+*   **Logging**: Use `debugLogger` for errors. NEVER leave `console.log/warn/error` in the code.
+*   **TypeScript**: Avoid the non-null assertion operator (`!`).
+
+{{args}}. 
+ """

package-lock.json

@@ -1,16 +1,17 @@
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@@ -16715,6 +16709,7 @@
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
       "integrity": "sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA==",
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">= 0.4.0"
       }
@@ -16770,7 +16765,6 @@
       "integrity": "sha512-BxAKBWmIbrDgrokdGZH1IgkIk/5mMHDreLDmCJ0qpyJaAteP8NvMhkwr/ZCQNqNH97bw/dANTE9PDzqwJghfMQ==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "esbuild": "^0.25.0",
         "fdir": "^6.5.0",
@@ -16887,7 +16881,6 @@
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -16901,7 +16894,6 @@
       "integrity": "sha512-LUCP5ev3GURDysTWiP47wRRUpLKMOfPh+yKTx3kVIEiu5KOMeqzpnYNsKyOoVrULivR8tLcks4+lga33Whn90A==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/chai": "^5.2.2",
         "@vitest/expect": "3.2.4",
@@ -17608,7 +17600,6 @@
       "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
       "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
       "license": "MIT",
-      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
@@ -17624,7 +17615,7 @@
     },
     "packages/a2a-server": {
       "name": "@google/gemini-cli-a2a-server",
-      "version": "0.19.0-nightly.20251125.f6d97d448",
+      "version": "0.19.4",
       "dependencies": {
         "@a2a-js/sdk": "^0.3.2",
         "@google-cloud/storage": "^7.16.0",
@@ -17914,7 +17905,7 @@
     },
     "packages/cli": {
       "name": "@google/gemini-cli",
-      "version": "0.19.0-nightly.20251125.f6d97d448",
+      "version": "0.19.4",
       "dependencies": {
         "@google/gemini-cli-core": "file:../core",
         "@google/genai": "1.30.0",
@@ -17981,6 +17972,16 @@
         "node": ">=20"
       }
     },
+    "packages/cli/node_modules/@types/node": {
+      "version": "20.19.25",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.25.tgz",
+      "integrity": "sha512-ZsJzA5thDQMSQO788d7IocwwQbI8B5OPzmqNvpf3NY/+MHDAS759Wo0gd2WQeXYt5AAAQjzcrTVC6SKCuYgoCQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~6.21.0"
+      }
+    },
     "packages/cli/node_modules/string-width": {
       "version": "8.1.0",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-8.1.0.tgz",
@@ -18013,9 +18014,16 @@
         "node": ">=18"
       }
     },
+    "packages/cli/node_modules/undici-types": {
+      "version": "6.21.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "packages/core": {
       "name": "@google/gemini-cli-core",
-      "version": "0.19.0-nightly.20251125.f6d97d448",
+      "version": "0.19.4",
       "dependencies": {
         "@google-cloud/logging": "^11.2.1",
         "@google-cloud/opentelemetry-cloud-monitoring-exporter": "^0.21.0",
@@ -18150,7 +18158,6 @@
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -18160,7 +18167,7 @@
     },
     "packages/test-utils": {
       "name": "@google/gemini-cli-test-utils",
-      "version": "0.19.0-nightly.20251125.f6d97d448",
+      "version": "0.19.4",
       "license": "Apache-2.0",
       "devDependencies": {
         "typescript": "^5.3.3"
@@ -18171,7 +18178,7 @@
     },
     "packages/vscode-ide-companion": {
       "name": "gemini-cli-vscode-ide-companion",
-      "version": "0.19.0-nightly.20251125.f6d97d448",
+      "version": "0.19.4",
       "license": "LICENSE",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.23.0",
@@ -18197,6 +18204,16 @@
         "vscode": "^1.99.0"
       }
     },
+    "packages/vscode-ide-companion/node_modules/@types/node": {
+      "version": "20.19.25",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.25.tgz",
+      "integrity": "sha512-ZsJzA5thDQMSQO788d7IocwwQbI8B5OPzmqNvpf3NY/+MHDAS759Wo0gd2WQeXYt5AAAQjzcrTVC6SKCuYgoCQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~6.21.0"
+      }
+    },
     "packages/vscode-ide-companion/node_modules/@types/vscode": {
       "version": "1.99.0",
       "resolved": "https://registry.npmjs.org/@types/vscode/-/vscode-1.99.0.tgz",
@@ -18325,6 +18342,13 @@
       "engines": {
         "node": ">= 0.6"
       }
+    },
+    "packages/vscode-ide-companion/node_modules/undici-types": {
+      "version": "6.21.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "dev": true,
+      "license": "MIT"
     }
   }
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.19.0-nightly.20251125.f6d97d448",
+  "version": "0.19.4",
   "engines": {
     "node": ">=20.0.0"
   },
@@ -14,7 +14,7 @@
     "url": "git+https://github.com/google-gemini/gemini-cli.git"
   },
   "config": {
-    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.19.0-nightly.20251125.f6d97d448"
+    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.19.4"
   },
   "scripts": {
     "start": "cross-env NODE_ENV=development node scripts/start.js",
@@ -119,6 +119,7 @@
     "yargs": "^17.7.2"
   },
   "dependencies": {
+    "@types/node": "^24.10.1",
     "ink": "npm:@jrichman/ink@6.4.6",
     "latest-version": "^9.0.0",
     "simple-git": "^3.28.0"

packages/a2a-server/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-a2a-server",
-  "version": "0.19.0-nightly.20251125.f6d97d448",
+  "version": "0.19.4",
   "description": "Gemini CLI A2A Server",
   "repository": {
     "type": "git",

packages/a2a-server/src/agent/task.ts

@@ -658,7 +658,7 @@ export class Task {
           errorMessage,
         );
 
-        let errMessage = 'Unknown error from LLM stream';
+        let errMessage = `Unknown error from LLM stream: ${JSON.stringify(event)}`;
         if (errorEvent.value) {
           errMessage = parseAndFormatApiError(errorEvent.value);
         }

packages/cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli",
-  "version": "0.19.0-nightly.20251125.f6d97d448",
+  "version": "0.19.4",
   "description": "Gemini CLI",
   "repository": {
     "type": "git",
@@ -25,7 +25,7 @@
     "dist"
   ],
   "config": {
-    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.19.0-nightly.20251125.f6d97d448"
+    "sandboxImageUri": "us-docker.pkg.dev/gemini-code-dev/gemini-cli/sandbox:0.19.4"
   },
   "dependencies": {
     "@google/gemini-cli-core": "file:../core",

packages/cli/src/ui/components/SessionBrowser.test.tsx

@@ -138,11 +138,14 @@ const createSession = (overrides: Partial<SessionInfo>): SessionInfo => ({
 
 describe('SessionBrowser component', () => {
   beforeEach(() => {
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date('2025-11-01T12:00:00Z'));
     keypressHandlers.length = 0;
     vi.clearAllMocks();
   });
 
   afterEach(() => {
+    vi.useRealTimers();
     vi.restoreAllMocks();
   });
 

packages/cli/src/ui/components/ThemeDialog.test.tsx

@@ -4,13 +4,11 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-import { render } from '../../test-utils/render.js';
+import { renderWithProviders } from '../../test-utils/render.js';
 import { waitFor } from '../../test-utils/async.js';
 import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
 import { ThemeDialog } from './ThemeDialog.js';
 import { LoadedSettings } from '../../config/settings.js';
-import { KeypressProvider } from '../contexts/KeypressContext.js';
-import { SettingsContext } from '../contexts/SettingsContext.js';
 import { DEFAULT_THEME, themeManager } from '../themes/theme-manager.js';
 import { act } from 'react';
 
@@ -76,12 +74,9 @@ describe('ThemeDialog Snapshots', () => {
 
   it('should render correctly in theme selection mode', () => {
     const settings = createMockSettings();
-    const { lastFrame } = render(
-      <SettingsContext.Provider value={settings}>
-        <KeypressProvider>
-          <ThemeDialog {...baseProps} settings={settings} />
-        </KeypressProvider>
-      </SettingsContext.Provider>,
+    const { lastFrame } = renderWithProviders(
+      <ThemeDialog {...baseProps} settings={settings} />,
+      { settings },
     );
 
     expect(lastFrame()).toMatchSnapshot();
@@ -89,12 +84,9 @@ describe('ThemeDialog Snapshots', () => {
 
   it('should render correctly in scope selector mode', async () => {
     const settings = createMockSettings();
-    const { lastFrame, stdin } = render(
-      <SettingsContext.Provider value={settings}>
-        <KeypressProvider>
-          <ThemeDialog {...baseProps} settings={settings} />
-        </KeypressProvider>
-      </SettingsContext.Provider>,
+    const { lastFrame, stdin } = renderWithProviders(
+      <ThemeDialog {...baseProps} settings={settings} />,
+      { settings },
     );
 
     // Press Tab to switch to scope selector mode
@@ -111,16 +103,13 @@ describe('ThemeDialog Snapshots', () => {
   it('should call onCancel when ESC is pressed', async () => {
     const mockOnCancel = vi.fn();
     const settings = createMockSettings();
-    const { stdin } = render(
-      <SettingsContext.Provider value={settings}>
-        <KeypressProvider>
-          <ThemeDialog
-            {...baseProps}
-            onCancel={mockOnCancel}
-            settings={settings}
-          />
-        </KeypressProvider>
-      </SettingsContext.Provider>,
+    const { stdin } = renderWithProviders(
+      <ThemeDialog
+        {...baseProps}
+        onCancel={mockOnCancel}
+        settings={settings}
+      />,
+      { settings },
     );
 
     act(() => {
@@ -131,4 +120,26 @@ describe('ThemeDialog Snapshots', () => {
       expect(mockOnCancel).toHaveBeenCalled();
     });
   });
+
+  it('should call refreshStatic when a theme is selected', async () => {
+    const mockRefreshStatic = vi.fn();
+    const settings = createMockSettings();
+    const { stdin } = renderWithProviders(
+      <ThemeDialog {...baseProps} settings={settings} />,
+      {
+        settings,
+        uiActions: { refreshStatic: mockRefreshStatic },
+      },
+    );
+
+    // Press Enter to select the theme
+    act(() => {
+      stdin.write('\r');
+    });
+
+    await waitFor(() => {
+      expect(mockRefreshStatic).toHaveBeenCalled();
+      expect(baseProps.onSelect).toHaveBeenCalled();
+    });
+  });
 });

packages/cli/src/ui/components/ThemeDialog.tsx

@@ -21,6 +21,7 @@ import { getScopeMessageForSetting } from '../../utils/dialogScopeUtils.js';
 import { useKeypress } from '../hooks/useKeypress.js';
 import { useAlternateBuffer } from '../hooks/useAlternateBuffer.js';
 import { ScopeSelector } from './shared/ScopeSelector.js';
+import { useUIActions } from '../contexts/UIActionsContext.js';
 
 interface ThemeDialogProps {
   /** Callback function when a theme is selected */
@@ -46,6 +47,7 @@ export function ThemeDialog({
   terminalWidth,
 }: ThemeDialogProps): React.JSX.Element {
   const isAlternateBuffer = useAlternateBuffer();
+  const { refreshStatic } = useUIActions();
   const [selectedScope, setSelectedScope] = useState<LoadableSettingScope>(
     SettingScope.User,
   );
@@ -93,8 +95,9 @@ export function ThemeDialog({
   const handleThemeSelect = useCallback(
     (themeName: string) => {
       onSelect(themeName, selectedScope);
+      refreshStatic();
     },
-    [onSelect, selectedScope],
+    [onSelect, selectedScope, refreshStatic],
   );
 
   const handleThemeHighlight = (themeName: string) => {
@@ -109,8 +112,9 @@ export function ThemeDialog({
   const handleScopeSelect = useCallback(
     (scope: LoadableSettingScope) => {
       onSelect(highlightedThemeName, scope);
+      refreshStatic();
     },
-    [onSelect, highlightedThemeName],
+    [onSelect, highlightedThemeName, refreshStatic],
   );
 
   const [mode, setMode] = useState<'theme' | 'scope'>('theme');

packages/cli/src/ui/components/__snapshots__/ThemeDialog.test.tsx.snap

@@ -1,38 +1,38 @@
 // Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
 
 exports[`ThemeDialog Snapshots > should render correctly in scope selector mode 1`] = `
-"╭──────────────────────────────────────────────────────────────────────────────────────────────────╮
-│                                                                                                  │
-│ > Apply To                                                                                       │
-│ ● 1. User Settings                                                                               │
-│   2. Workspace Settings                                                                          │
-│   3. System Settings                                                                             │
-│                                                                                                  │
-│ (Use Enter to apply scope, Tab to select theme, Esc to close)                                    │
-│                                                                                                  │
-╰──────────────────────────────────────────────────────────────────────────────────────────────────╯"
+"╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
+│                                                                                                                      │
+│ > Apply To                                                                                                           │
+│ ● 1. User Settings                                                                                                   │
+│   2. Workspace Settings                                                                                              │
+│   3. System Settings                                                                                                 │
+│                                                                                                                      │
+│ (Use Enter to apply scope, Tab to select theme, Esc to close)                                                        │
+│                                                                                                                      │
+╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯"
 `;
 
 exports[`ThemeDialog Snapshots > should render correctly in theme selection mode 1`] = `
-"╭──────────────────────────────────────────────────────────────────────────────────────────────────╮
-│                                                                                                  │
-│ > Select Theme                               Preview                                             │
-│ ▲                                            ┌─────────────────────────────────────────────────┐ │
-│    1. ANSI Dark                              │                                                 │ │
-│    2. Atom One Dark                          │ 1 # function                                    │ │
-│    3. Ayu Dark                               │ 2 def fibonacci(n):                             │ │
-│ ●  4. Default Dark                           │ 3     a, b = 0, 1                               │ │
-│    5. Dracula Dark                           │ 4     for _ in range(n):                        │ │
-│    6. GitHub Dark                            │ 5         a, b = b, a + b                       │ │
-│    7. Shades Of Purple Dark                  │ 6     return a                                  │ │
-│    8. ANSI Light Light                       │                                                 │ │
-│    9. Ayu Light Light                        │ 1 - print("Hello, " + name)                     │ │
-│   10. Default Light Light                    │ 1 + print(f"Hello, {name}!")                    │ │
-│   11. GitHub Light Light                     │                                                 │ │
-│   12. Google Code Light                      └─────────────────────────────────────────────────┘ │
-│ ▼                                                                                                │
-│                                                                                                  │
-│ (Use Enter to select, Tab to configure scope, Esc to close)                                      │
-│                                                                                                  │
-╰──────────────────────────────────────────────────────────────────────────────────────────────────╯"
+"╭──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
+│                                                                                                                      │
+│ > Select Theme                                        Preview                                                        │
+│ ▲                                                     ┌────────────────────────────────────────────────────────────┐ │
+│    1. ANSI Dark                                       │                                                            │ │
+│    2. Atom One Dark                                   │ 1 # function                                               │ │
+│    3. Ayu Dark                                        │ 2 def fibonacci(n):                                        │ │
+│ ●  4. Default Dark                                    │ 3     a, b = 0, 1                                          │ │
+│    5. Dracula Dark                                    │ 4     for _ in range(n):                                   │ │
+│    6. GitHub Dark                                     │ 5         a, b = b, a + b                                  │ │
+│    7. Holiday Dark                                    │ 6     return a                                             │ │
+│    8. Shades Of Purple Dark                           │                                                            │ │
+│    9. ANSI Light Light                                │ 1 - print("Hello, " + name)                                │ │
+│   10. Ayu Light Light                                 │ 1 + print(f"Hello, {name}!")                               │ │
+│   11. Default Light Light                             │                                                            │ │
+│   12. GitHub Light Light                              └────────────────────────────────────────────────────────────┘ │
+│ ▼                                                                                                                    │
+│                                                                                                                      │
+│ (Use Enter to select, Tab to configure scope, Esc to close)                                                          │
+│                                                                                                                      │
+╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯"
 `;

packages/cli/src/ui/themes/holiday.ts

@@ -0,0 +1,169 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { type ColorsTheme, Theme } from './theme.js';
+import { interpolateColor } from './color-utils.js';
+
+const holidayColors: ColorsTheme = {
+  type: 'dark',
+  Background: '#00210e',
+  Foreground: '#F0F8FF',
+  LightBlue: '#B0E0E6',
+  AccentBlue: '#3CB371',
+  AccentPurple: '#FF9999',
+  AccentCyan: '#33F9FF',
+  AccentGreen: '#3CB371',
+  AccentYellow: '#FFEE8C',
+  AccentRed: '#FF6347',
+  DiffAdded: '#2E8B57',
+  DiffRemoved: '#CD5C5C',
+  Comment: '#8FBC8F',
+  Gray: '#D7F5D3',
+  DarkGray: interpolateColor('#D7F5D3', '#151B18', 0.5),
+  GradientColors: ['#FF0000', '#FFFFFF', '#008000'],
+};
+
+export const Holiday: Theme = new Theme(
+  'Holiday',
+  'dark',
+  {
+    hljs: {
+      display: 'block',
+      overflowX: 'auto',
+      padding: '0.5em',
+      background: holidayColors.Background,
+      color: holidayColors.Foreground,
+    },
+    'hljs-keyword': {
+      color: holidayColors.AccentBlue,
+    },
+    'hljs-literal': {
+      color: holidayColors.AccentBlue,
+    },
+    'hljs-symbol': {
+      color: holidayColors.AccentBlue,
+    },
+    'hljs-name': {
+      color: holidayColors.AccentBlue,
+    },
+    'hljs-link': {
+      color: holidayColors.AccentBlue,
+      textDecoration: 'underline',
+    },
+    'hljs-built_in': {
+      color: holidayColors.AccentCyan,
+    },
+    'hljs-type': {
+      color: holidayColors.AccentCyan,
+    },
+    'hljs-number': {
+      color: holidayColors.AccentGreen,
+    },
+    'hljs-class': {
+      color: holidayColors.AccentGreen,
+    },
+    'hljs-string': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-meta-string': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-regexp': {
+      color: holidayColors.AccentRed,
+    },
+    'hljs-template-tag': {
+      color: holidayColors.AccentRed,
+    },
+    'hljs-subst': {
+      color: holidayColors.Foreground,
+    },
+    'hljs-function': {
+      color: holidayColors.Foreground,
+    },
+    'hljs-title': {
+      color: holidayColors.Foreground,
+    },
+    'hljs-params': {
+      color: holidayColors.Foreground,
+    },
+    'hljs-formula': {
+      color: holidayColors.Foreground,
+    },
+    'hljs-comment': {
+      color: holidayColors.Comment,
+      fontStyle: 'italic',
+    },
+    'hljs-quote': {
+      color: holidayColors.Comment,
+      fontStyle: 'italic',
+    },
+    'hljs-doctag': {
+      color: holidayColors.Comment,
+    },
+    'hljs-meta': {
+      color: holidayColors.Gray,
+    },
+    'hljs-meta-keyword': {
+      color: holidayColors.Gray,
+    },
+    'hljs-tag': {
+      color: holidayColors.Gray,
+    },
+    'hljs-variable': {
+      color: holidayColors.AccentPurple,
+    },
+    'hljs-template-variable': {
+      color: holidayColors.AccentPurple,
+    },
+    'hljs-attr': {
+      color: holidayColors.LightBlue,
+    },
+    'hljs-attribute': {
+      color: holidayColors.LightBlue,
+    },
+    'hljs-builtin-name': {
+      color: holidayColors.LightBlue,
+    },
+    'hljs-section': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-emphasis': {
+      fontStyle: 'italic',
+    },
+    'hljs-strong': {
+      fontWeight: 'bold',
+    },
+    'hljs-bullet': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-selector-tag': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-selector-id': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-selector-class': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-selector-attr': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-selector-pseudo': {
+      color: holidayColors.AccentYellow,
+    },
+    'hljs-addition': {
+      backgroundColor: holidayColors.DiffAdded,
+      display: 'inline-block',
+      width: '100%',
+    },
+    'hljs-deletion': {
+      backgroundColor: holidayColors.DiffRemoved,
+      display: 'inline-block',
+      width: '100%',
+    },
+  },
+  holidayColors,
+);

packages/cli/src/ui/themes/theme-manager.ts

@@ -11,6 +11,7 @@ import { Dracula } from './dracula.js';
 import { GitHubDark } from './github-dark.js';
 import { GitHubLight } from './github-light.js';
 import { GoogleCode } from './googlecode.js';
+import { Holiday } from './holiday.js';
 import { DefaultLight } from './default-light.js';
 import { DefaultDark } from './default.js';
 import { ShadesOfPurple } from './shades-of-purple.js';
@@ -51,6 +52,7 @@ class ThemeManager {
       GitHubDark,
       GitHubLight,
       GoogleCode,
+      Holiday,
       ShadesOfPurple,
       XCode,
       ANSI,

packages/core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-core",
-  "version": "0.19.0-nightly.20251125.f6d97d448",
+  "version": "0.19.4",
   "description": "Gemini CLI Core",
   "repository": {
     "type": "git",

packages/core/src/services/shellExecutionService.test.ts

@@ -8,9 +8,12 @@ import { vi, describe, it, expect, beforeEach, type Mock } from 'vitest';
 import EventEmitter from 'node:events';
 import type { Readable } from 'node:stream';
 import { type ChildProcess } from 'node:child_process';
-import type { ShellOutputEvent } from './shellExecutionService.js';
+import type {
+  ShellOutputEvent,
+  ShellExecutionConfig,
+} from './shellExecutionService.js';
 import { ShellExecutionService } from './shellExecutionService.js';
-import type { AnsiOutput } from '../utils/terminalSerializer.js';
+import type { AnsiOutput, AnsiToken } from '../utils/terminalSerializer.js';
 
 // Hoisted Mocks
 const mockPtySpawn = vi.hoisted(() => vi.fn());
@@ -64,7 +67,7 @@ const mockProcessKill = vi
   .spyOn(process, 'kill')
   .mockImplementation(() => true);
 
-const shellExecutionConfig = {
+const shellExecutionConfig: ShellExecutionConfig = {
   terminalWidth: 80,
   terminalHeight: 24,
   pager: 'cat',
@@ -74,21 +77,19 @@ const shellExecutionConfig = {
 
 const createExpectedAnsiOutput = (text: string | string[]): AnsiOutput => {
   const lines = Array.isArray(text) ? text : text.split('\n');
-  const expected: AnsiOutput = Array.from(
-    { length: shellExecutionConfig.terminalHeight },
-    (_, i) => [
-      {
-        text: expect.stringMatching((lines[i] || '').trim()),
-        bold: false,
-        italic: false,
-        underline: false,
-        dim: false,
-        inverse: false,
-        fg: '',
-        bg: '',
-      },
-    ],
-  );
+  const len = (shellExecutionConfig.terminalHeight ?? 24) as number;
+  const expected: AnsiOutput = Array.from({ length: len }, (_, i) => [
+    {
+      text: expect.stringMatching((lines[i] || '').trim()),
+      bold: false,
+      italic: false,
+      underline: false,
+      dim: false,
+      inverse: false,
+      fg: '',
+      bg: '',
+    } as AnsiToken,
+  ]);
   return expected;
 };
 
@@ -242,6 +243,113 @@ describe('ShellExecutionService', () => {
       );
     });
 
+    it('should capture large output (10000 lines)', async () => {
+      const lineCount = 10000;
+      const lines = Array.from({ length: lineCount }, (_, i) => `line ${i}`);
+      const expectedOutput = lines.join('\n');
+
+      const { result } = await simulateExecution(
+        'large-output-command',
+        (pty) => {
+          // Send data in chunks to simulate realistic streaming
+          // Use \r\n to ensure the terminal moves the cursor to the start of the line
+          const chunkSize = 1000;
+          for (let i = 0; i < lineCount; i += chunkSize) {
+            const chunk = lines.slice(i, i + chunkSize).join('\r\n') + '\r\n';
+            pty.onData.mock.calls[0][0](chunk);
+          }
+          pty.onExit.mock.calls[0][0]({ exitCode: 0, signal: null });
+        },
+      );
+
+      expect(result.exitCode).toBe(0);
+      // The terminal buffer output includes trailing spaces for each line (up to terminal width).
+      // We trim each line to match our expected simple string.
+      const processedOutput = result.output
+        .split('\n')
+        .map((l) => l.trimEnd())
+        .join('\n')
+        .trim();
+      expect(processedOutput).toBe(expectedOutput);
+      expect(result.output.split('\n').length).toBeGreaterThanOrEqual(
+        lineCount,
+      );
+    });
+
+    it('should not wrap long lines in the final output', async () => {
+      // Set a small width to force wrapping
+      const narrowConfig = { ...shellExecutionConfig, terminalWidth: 10 };
+      const longString = '123456789012345'; // 15 chars, should wrap at 10
+
+      const { result } = await simulateExecution(
+        'long-line-command',
+        (pty) => {
+          pty.onData.mock.calls[0][0](longString);
+          pty.onExit.mock.calls[0][0]({ exitCode: 0, signal: null });
+        },
+        narrowConfig,
+      );
+
+      expect(result.exitCode).toBe(0);
+      expect(result.output.trim()).toBe(longString);
+    });
+
+    it('should not add extra padding but preserve explicit trailing whitespace', async () => {
+      const { result } = await simulateExecution('cmd', (pty) => {
+        // "value" should not get terminal-width padding
+        // "value2    " should keep its spaces
+        pty.onData.mock.calls[0][0]('value\r\nvalue2    ');
+        pty.onExit.mock.calls[0][0]({ exitCode: 0, signal: null });
+      });
+
+      expect(result.output).toBe('value\nvalue2    ');
+    });
+
+    it('should truncate output exceeding the scrollback limit', async () => {
+      const scrollbackLimit = 100;
+      const totalLines = 150;
+      // Generate lines: "line 0", "line 1", ...
+      const lines = Array.from({ length: totalLines }, (_, i) => `line ${i}`);
+
+      const { result } = await simulateExecution(
+        'overflow-command',
+        (pty) => {
+          const chunk = lines.join('\r\n') + '\r\n';
+          pty.onData.mock.calls[0][0](chunk);
+          pty.onExit.mock.calls[0][0]({ exitCode: 0, signal: null });
+        },
+        { ...shellExecutionConfig, scrollback: scrollbackLimit },
+      );
+
+      expect(result.exitCode).toBe(0);
+
+      // The terminal should keep the *last* 'scrollbackLimit' lines + lines in the viewport.
+      // xterm.js scrollback is the number of lines *above* the viewport.
+      // So total lines retained = scrollback + rows.
+      // However, our `getFullBufferText` implementation iterates the *active* buffer.
+      // In headless xterm, the buffer length grows.
+      // Let's verify that we have fewer lines than totalLines.
+
+      const outputLines = result.output
+        .trim()
+        .split('\n')
+        .map((l) => l.trimEnd());
+
+      // We expect the *start* of the output to be truncated.
+      // The first retained line should be > "line 0".
+      // Specifically, if we sent 150 lines and have space for roughly 100 + viewport(24),
+      // we should miss the first ~26 lines.
+
+      // Check that we lost some lines from the beginning
+      expect(outputLines.length).toBeLessThan(totalLines);
+      expect(outputLines[0]).not.toBe('line 0');
+
+      // Check that we have the *last* lines
+      expect(outputLines[outputLines.length - 1]).toBe(
+        `line ${totalLines - 1}`,
+      );
+    });
+
     it('should call onPid with the process id', async () => {
       const abortController = new AbortController();
       const handle = await ShellExecutionService.execute(

packages/core/src/services/shellExecutionService.ts

@@ -24,6 +24,11 @@ const { Terminal } = pkg;
 const SIGKILL_TIMEOUT_MS = 200;
 const MAX_CHILD_PROCESS_BUFFER_SIZE = 16 * 1024 * 1024; // 16MB
 
+// We want to allow shell outputs that are close to the context window in size.
+// 300,000 lines is roughly equivalent to a large context window, ensuring
+// we capture significant output from long-running commands.
+export const SCROLLBACK_LIMIT = 300000;
+
 const BASH_SHOPT_OPTIONS = 'promptvars nullglob extglob nocaseglob dotglob';
 const BASH_SHOPT_GUARD = `shopt -u ${BASH_SHOPT_OPTIONS};`;
 
@@ -77,6 +82,7 @@ export interface ShellExecutionConfig {
   defaultBg?: string;
   // Used for testing
   disableDynamicLineTrimming?: boolean;
+  scrollback?: number;
 }
 
 /**
@@ -110,10 +116,36 @@ const getFullBufferText = (terminal: pkg.Terminal): string => {
   const lines: string[] = [];
   for (let i = 0; i < buffer.length; i++) {
     const line = buffer.getLine(i);
-    const lineContent = line ? line.translateToString() : '';
-    lines.push(lineContent);
+    if (!line) {
+      continue;
+    }
+    // If the NEXT line is wrapped, it means it's a continuation of THIS line.
+    // We should not trim the right side of this line because trailing spaces
+    // might be significant parts of the wrapped content.
+    // If it's not wrapped, we trim normally.
+    let trimRight = true;
+    if (i + 1 < buffer.length) {
+      const nextLine = buffer.getLine(i + 1);
+      if (nextLine?.isWrapped) {
+        trimRight = false;
+      }
+    }
+
+    const lineContent = line.translateToString(trimRight);
+
+    if (line.isWrapped && lines.length > 0) {
+      lines[lines.length - 1] += lineContent;
+    } else {
+      lines.push(lineContent);
+    }
   }
-  return lines.join('\n').trimEnd();
+
+  // Remove trailing empty lines
+  while (lines.length > 0 && lines[lines.length - 1] === '') {
+    lines.pop();
+  }
+
+  return lines.join('\n');
 };
 
 /**
@@ -443,6 +475,7 @@ export class ShellExecutionService {
           allowProposedApi: true,
           cols,
           rows,
+          scrollback: shellExecutionConfig.scrollback ?? SCROLLBACK_LIMIT,
         });
         headlessTerminal.scrollToTop();
 

packages/test-utils/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/gemini-cli-test-utils",
-  "version": "0.19.0-nightly.20251125.f6d97d448",
+  "version": "0.19.4",
   "private": true,
   "main": "src/index.ts",
   "license": "Apache-2.0",

packages/vscode-ide-companion/package.json

@@ -2,7 +2,7 @@
   "name": "gemini-cli-vscode-ide-companion",
   "displayName": "Gemini CLI Companion",
   "description": "Enable Gemini CLI with direct access to your IDE workspace.",
-  "version": "0.19.0-nightly.20251125.f6d97d448",
+  "version": "0.19.4",
   "publisher": "google",
   "icon": "assets/icon.png",
   "repository": {