[4733ad3] | 1 | # SPDX-License-Identifier: BSD-2-Clause |
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| 2 | """ This module provides utility functions. """ |
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| 3 | |
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| 4 | # Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) |
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| 5 | # |
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| 6 | # Redistribution and use in source and binary forms, with or without |
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| 7 | # modification, are permitted provided that the following conditions |
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| 8 | # are met: |
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| 9 | # 1. Redistributions of source code must retain the above copyright |
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| 10 | # notice, this list of conditions and the following disclaimer. |
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| 11 | # 2. Redistributions in binary form must reproduce the above copyright |
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| 12 | # notice, this list of conditions and the following disclaimer in the |
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| 13 | # documentation and/or other materials provided with the distribution. |
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| 14 | # |
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| 15 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 16 | # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 17 | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 18 | # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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| 19 | # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 20 | # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 21 | # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 22 | # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 23 | # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 24 | # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 25 | # POSSIBILITY OF SUCH DAMAGE. |
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| 26 | |
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| 27 | import os |
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[8230acb] | 28 | import shutil |
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| 29 | from typing import Any, List |
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[4733ad3] | 30 | import yaml |
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| 31 | |
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| 32 | |
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[8230acb] | 33 | def copy_files(src_dir: str, dst_dir: str, files: List[str]) -> None: |
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| 34 | """ |
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| 35 | Copies a list of files in the source directory to the destination |
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| 36 | directory preserving the directory of the files relative to the source |
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| 37 | directory. |
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| 38 | """ |
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| 39 | for a_file in files: |
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| 40 | src = os.path.join(src_dir, a_file) |
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| 41 | dst = os.path.join(dst_dir, a_file) |
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| 42 | os.makedirs(os.path.dirname(dst), exist_ok=True) |
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| 43 | shutil.copy2(src, dst) |
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| 44 | |
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| 45 | |
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[4733ad3] | 46 | def load_config(config_filename: str) -> Any: |
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| 47 | """ Loads the configuration file with recursive includes. """ |
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| 48 | class IncludeLoader(yaml.SafeLoader): # pylint: disable=too-many-ancestors |
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| 49 | """ YAML loader customization to process custom include tags. """ |
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| 50 | _filenames = [config_filename] |
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| 51 | |
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| 52 | def include(self, node): |
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| 53 | """ Processes the custom include tag. """ |
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| 54 | container = IncludeLoader._filenames[0] |
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| 55 | dirname = os.path.dirname(container) |
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| 56 | filename = os.path.join(dirname, self.construct_scalar(node)) |
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| 57 | IncludeLoader._filenames.insert(0, filename) |
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| 58 | with open(filename, "r") as included_file: |
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| 59 | data = yaml.load(included_file, IncludeLoader) |
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| 60 | IncludeLoader._filenames.pop() |
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| 61 | return data |
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| 62 | |
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| 63 | IncludeLoader.add_constructor("!include", IncludeLoader.include) |
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| 64 | with open(config_filename, "r") as config_file: |
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| 65 | return yaml.load(config_file.read(), Loader=IncludeLoader) |
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