| # SPDX-License-Identifier: Apache-2.0 |
| # Copyright 2021 The Meson development team |
| |
| from __future__ import annotations |
| |
| |
| import importlib.resources |
| from pathlib import PurePosixPath, Path |
| import typing as T |
| |
| if T.TYPE_CHECKING: |
| from .environment import Environment |
| |
| class DataFile: |
| def __init__(self, path: str) -> None: |
| self.path = PurePosixPath(path) |
| |
| def write_once(self, path: Path) -> None: |
| if not path.exists(): |
| data = importlib.resources.read_text( # [ignore encoding] it's on the next lines, Mr. Lint |
| ('mesonbuild' / self.path.parent).as_posix().replace('/', '.'), |
| self.path.name, |
| encoding='utf-8') |
| path.write_text(data, encoding='utf-8') |
| |
| def write_to_private(self, env: 'Environment') -> Path: |
| try: |
| resource = importlib.resources.files('mesonbuild') / self.path |
| if isinstance(resource, Path): |
| return resource |
| except AttributeError: |
| # fall through to python 3.7 compatible code |
| pass |
| |
| out_file = Path(env.scratch_dir) / 'data' / self.path.name |
| out_file.parent.mkdir(exist_ok=True) |
| self.write_once(out_file) |
| return out_file |
