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-rw-r--r--cmake/GitVersionGen.cmake43
1 files changed, 43 insertions, 0 deletions
diff --git a/cmake/GitVersionGen.cmake b/cmake/GitVersionGen.cmake
new file mode 100644
index 00000000..53ac166d
--- /dev/null
+++ b/cmake/GitVersionGen.cmake
@@ -0,0 +1,43 @@
+macro(GIT_VERSION_GEN)
+
+include(FindGit)
+if(NOT GIT_FOUND)
+ message(FATAL_ERROR "This is not a git repository")
+endif()
+
+find_program(SORT "sort")
+mark_as_advanced(SORT)
+if (${SORT} STREQUAL "")
+ message(FATAL_ERROR "Cannot find the sort executable")
+endif()
+
+find_program(TAIL "tail")
+mark_as_advanced(TAIL)
+if (${TAIL} STREQUAL "")
+ message(FATAL_ERROR "Cannot find the tail executable")
+endif()
+
+execute_process(
+ COMMAND ${GIT_EXECUTABLE} tag -l -n0
+ COMMAND ${SORT} -V
+ COMMAND ${TAIL} -n 1
+ WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+ OUTPUT_VARIABLE _git_tag
+ RESULT_VARIABLE _git_result
+ OUTPUT_STRIP_TRAILING_WHITESPACE)
+if(NOT ${_git_result} EQUAL 0)
+ message(FATAL_ERROR "Cannot fetch repository tag")
+endif()
+message(STATUS "Repository tag is: ${_git_tag}")
+
+string(REGEX REPLACE
+ "[^0-9]*([0-9]+)\\.[0-9]+.*" "\\1"
+ _version_major "${_git_tag}")
+string(REGEX REPLACE
+ "[^0-9]*[0-9]+\\.([0-9]+).*" "\\1"
+ _version_minor "${_git_tag}")
+
+set(PACKAGE_VERSION_MAJOR "${_version_major}")
+set(PACKAGE_VERSION_MINOR "${_version_minor}")
+
+endmacro(GIT_VERSION_GEN)