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# Copyright 2021 The Meson development team
# 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
# http://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.
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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