| # Copyright 2018 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| """A helper module to set up sys.path so that cros.factory.* can be located.""" |
| |
| import os |
| import sys |
| |
| |
| def _GetPackagePath(): |
| # graphyte_common.py is located at the top level of Graphyte code, e.g., |
| # ./graphyte/graphyte/graphyte_common.py. The package path is the parent |
| # folder, which is ./graphyte. |
| filepath = os.path.realpath(__file__.replace('.pyc', '.py')) |
| top_dir = os.path.dirname(filepath) |
| package_dir = os.path.dirname(top_dir) |
| return package_dir |
| |
| def _AddToSysPath(path): |
| if path is None: |
| return |
| if path in sys.path: |
| return |
| sys.path.insert(0, path) |
| |
| # For platforms without symlink (i.e., Windows), we need to derive the top level |
| # by environment variable. |
| _AddToSysPath(os.getenv('GRAPHYTE_PY_MAIN', _GetPackagePath())) |
