63 lines
2.1 KiB
Python
63 lines
2.1 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 OR GPL-2.0-or-later
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#
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import os
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import inspect
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def looks_like_tf_psa_crypto_root(path: str) -> bool:
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"""Whether the given directory looks like the root of the PSA Crypto source tree."""
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return all(os.path.isdir(os.path.join(path, subdir))
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for subdir in ['include', 'core', 'drivers', 'programs', 'tests'])
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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 looks_like_root(path: str) -> bool:
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return looks_like_tf_psa_crypto_root(path) or looks_like_mbedtls_root(path)
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def check_repo_path():
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"""
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Check that the current working directory is the project root, and throw
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an exception if not.
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"""
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if not all(os.path.isdir(d) for d in ["include", "library", "tests"]):
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raise Exception("This script must be run from Mbed TLS root")
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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_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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def guess_mbedtls_root():
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"""Guess mbedTLS source code directory.
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Return the first possible mbedTLS root directory
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"""
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dirs = set({})
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for frame in inspect.stack():
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path = os.path.dirname(frame.filename)
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for d in ['.', os.path.pardir] \
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+ [os.path.join(*([os.path.pardir]*i)) for i in range(2, 10)]:
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d = os.path.abspath(os.path.join(path, d))
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if d in dirs:
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continue
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dirs.add(d)
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if looks_like_root(d):
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return d
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raise Exception('Mbed TLS source tree not found')
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