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39 lines
1.4 KiB
Python
39 lines
1.4 KiB
Python
"""Mbed TLS build tree information and manipulation.
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"""
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# Copyright The Mbed TLS Contributors
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# 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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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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, WITHOUT
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# 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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import os
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def looks_like_mbedtls_root(path: str) -> bool:
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"""Whether the given directory looks like the root of the Mbed TLS source tree."""
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return all(os.path.isdir(os.path.join(path, subdir))
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for subdir in ['include', 'library', 'programs', 'tests'])
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def chdir_to_root() -> None:
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"""Detect the root of the Mbed TLS source tree and change to it.
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The current directory must be up to two levels deep inside an Mbed TLS
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source tree.
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"""
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for d in [os.path.curdir,
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os.path.pardir,
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os.path.join(os.path.pardir, os.path.pardir)]:
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if looks_like_mbedtls_root(d):
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os.chdir(d)
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return
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raise Exception('Mbed TLS source tree not found')
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