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# 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
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