The Meson Build System
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72 lines
2.4 KiB
72 lines
2.4 KiB
5 years ago
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# 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 IOError as e:
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raise mesonlib.MesonException('Failed to load {}: {}'.format(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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