1#
2#  Copyright (c) 2019, The OpenThread Authors.
3#  All rights reserved.
4#
5#  Redistribution and use in source and binary forms, with or without
6#  modification, are permitted provided that the following conditions are met:
7#  1. Redistributions of source code must retain the above copyright
8#     notice, this list of conditions and the following disclaimer.
9#  2. Redistributions in binary form must reproduce the above copyright
10#     notice, this list of conditions and the following disclaimer in the
11#     documentation and/or other materials provided with the distribution.
12#  3. Neither the name of the copyright holder nor the
13#     names of its contributors may be used to endorse or promote products
14#     derived from this software without specific prior written permission.
15#
16#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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25#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26#  POSSIBILITY OF SUCH DAMAGE.
27#
28
29function(ot_git_version git_version)
30    execute_process(
31        COMMAND git describe --dirty --always
32        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
33        OUTPUT_VARIABLE GIT_REV OUTPUT_STRIP_TRAILING_WHITESPACE
34        ERROR_QUIET
35    )
36    set(${git_version} "${GIT_REV}" PARENT_SCOPE)
37endfunction()
38