xref: /aosp_15_r20/external/google-benchmark/cmake/GetGitVersion.cmake (revision dbb99499c3810fa1611fa2242a2fc446be01a57c)
1# - Returns a version string from Git tags
2#
3# This function inspects the annotated git tags for the project and returns a string
4# into a CMake variable
5#
6#  get_git_version(<var>)
7#
8# - Example
9#
10# include(GetGitVersion)
11# get_git_version(GIT_VERSION)
12#
13# Requires CMake 2.8.11+
14find_package(Git)
15
16if(__get_git_version)
17  return()
18endif()
19set(__get_git_version INCLUDED)
20
21function(get_git_version var)
22  if(GIT_EXECUTABLE)
23      execute_process(COMMAND ${GIT_EXECUTABLE} describe --tags --match "v[0-9]*.[0-9]*.[0-9]*" --abbrev=8 --dirty
24          WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
25          RESULT_VARIABLE status
26          OUTPUT_VARIABLE GIT_VERSION
27          ERROR_QUIET)
28      if(status)
29          set(GIT_VERSION "v0.0.0")
30      endif()
31  else()
32      set(GIT_VERSION "v0.0.0")
33  endif()
34
35  set(${var} ${GIT_VERSION} PARENT_SCOPE)
36endfunction()
37