fixes to scm_rev generation to make it conistent with windows build

1 files changed, 28 insertions, 0 deletions

diff --git a/externals/cmake-modules/GetGitRevisionDescription.cmake b/externals/cmake-modules/GetGitRevisionDescription.cmake
index 2b9cde061..087f5deea 100644
--- a/externals/cmake-modules/GetGitRevisionDescription.cmake
+++ b/externals/cmake-modules/GetGitRevisionDescription.cmake
@@ -80,6 +80,34 @@ function(get_git_head_revision _refspecvar _hashvar)
         set(${_hashvar} "${HEAD_HASH}" PARENT_SCOPE)
 endfunction()
 
+function(git_branch_name _var)
+        if(NOT GIT_FOUND)
+                find_package(Git QUIET)
+        endif()
+
+        if(NOT GIT_FOUND)
+                set(${_var} "GIT-NOTFOUND" PARENT_SCOPE)
+                return()
+        endif()
+
+        execute_process(COMMAND
+                "${GIT_EXECUTABLE}"
+                rev-parse --abbrev-ref HEAD
+                WORKING_DIRECTORY
+                "${CMAKE_SOURCE_DIR}"
+                RESULT_VARIABLE
+                res
+                OUTPUT_VARIABLE
+                out
+                ERROR_QUIET
+                OUTPUT_STRIP_TRAILING_WHITESPACE)
+        if(NOT res EQUAL 0)
+                set(out "${out}-${res}-NOTFOUND")
+        endif()
+
+        set(${_var} "${out}" PARENT_SCOPE)
+endfunction()
+
 function(git_describe _var)
         if(NOT GIT_FOUND)
                 find_package(Git QUIET)