The Meson Build System
http://mesonbuild.com/
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71 lines
2.4 KiB
71 lines
2.4 KiB
# Copyright 2017, 2019 The Meson development team |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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from . import ExtensionModule |
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from .. import mesonlib |
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from ..mesonlib import typeslistify |
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from ..interpreterbase import FeatureNew, noKwargs |
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from ..interpreter import InvalidCode |
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import os |
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class KeyvalModule(ExtensionModule): |
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@FeatureNew('Keyval Module', '0.55.0') |
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def __init__(self, *args, **kwargs): |
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super().__init__(*args, **kwargs) |
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self.snippets.add('load') |
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def _load_file(self, path_to_config): |
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result = dict() |
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try: |
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with open(path_to_config) as f: |
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for line in f: |
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if '#' in line: |
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comment_idx = line.index('#') |
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line = line[:comment_idx] |
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line = line.strip() |
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try: |
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name, val = line.split('=', 1) |
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except ValueError: |
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continue |
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result[name.strip()] = val.strip() |
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except OSError as e: |
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raise mesonlib.MesonException(f'Failed to load {path_to_config}: {e}') |
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return result |
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@noKwargs |
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def load(self, interpreter, state, args, kwargs): |
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sources = typeslistify(args, (str, mesonlib.File)) |
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if len(sources) != 1: |
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raise InvalidCode('load takes only one file input.') |
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s = sources[0] |
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is_built = False |
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if isinstance(s, mesonlib.File): |
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is_built = is_built or s.is_built |
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s = s.absolute_path(interpreter.environment.source_dir, interpreter.environment.build_dir) |
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else: |
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s = os.path.join(interpreter.environment.source_dir, s) |
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if s not in interpreter.build_def_files and not is_built: |
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interpreter.build_def_files.append(s) |
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return self._load_file(s) |
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def initialize(*args, **kwargs): |
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return KeyvalModule(*args, **kwargs)
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