| # Copyright 2022 The ChromiumOS Authors. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """Provides utility for formatting GN files.""" |
| |
| import functools |
| import os |
| |
| from chromite.lib import constants |
| from chromite.lib import cros_build_lib |
| |
| |
| @functools.lru_cache(maxsize=None) |
| def _find_gn() -> str: |
| """Find the `gn` tool.""" |
| if cros_build_lib.IsInsideChroot(): |
| return 'gn' |
| else: |
| return os.path.join(constants.DEFAULT_CHROOT_PATH, 'usr', 'bin', 'gn') |
| |
| |
| def Data(data: str) -> str: |
| """Format GN |data|. |
| |
| Args: |
| data: The file content to lint. |
| |
| Returns: |
| Formatted data. |
| """ |
| result = cros_build_lib.run( |
| [_find_gn(), 'format', '--stdin'], capture_output=True, input=data, |
| encoding='utf-8') |
| return result.stdout |
