| # Copyright 2022 The Pigweed Authors |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| # use this file except in compliance with the License. You may obtain a copy of |
| # the License at |
| # |
| # https://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| # License for the specific language governing permissions and limitations under |
| # the License. |
| """Configure Python IDE support for Pigweed projects.""" |
| |
| from collections import defaultdict |
| import os |
| from pathlib import Path |
| import platform |
| from typing import Dict, NamedTuple |
| |
| _PYTHON_VENV_PATH = Path( |
| os.path.expandvars('$_PW_ACTUAL_ENVIRONMENT_ROOT')) / 'pigweed-venv' |
| |
| |
| class _PythonPathsForPlatform(NamedTuple): |
| bin_dir_name: str = 'bin' |
| interpreter_name: str = 'python3' |
| |
| |
| # When given a platform (e.g. the output of platform.system()), this dict gives |
| # the platform-specific virtualenv path names. |
| _PYTHON_PATHS_FOR_PLATFORM: Dict[str, _PythonPathsForPlatform] = defaultdict( |
| _PythonPathsForPlatform) |
| _PYTHON_PATHS_FOR_PLATFORM['Windows'] = _PythonPathsForPlatform( |
| bin_dir_name='Scripts', interpreter_name='pythonw.exe') |
| |
| |
| class PythonPaths: |
| """Holds the platform-specific Python environment paths. |
| |
| The directory layout of Python virtual environments varies among |
| platforms. This class holds the data needed to find the right paths |
| for a specific platform. |
| """ |
| def __init__(self, system=platform.system()): |
| (bin_dir_name, interpreter_name) = _PYTHON_PATHS_FOR_PLATFORM[system] |
| self.bin_dir = _PYTHON_VENV_PATH / bin_dir_name |
| self.interpreter = self.bin_dir / interpreter_name |