# Common settings for CGAL cmake scripts
if( NOT CGAL_SCM_FILE_INCLUDED )
  set(CGAL_SCM_FILE_INCLUDED 1 )

#message ("-----CSD: ${CMAKE_SOURCE_DIR}")

set(GIT_PARENT_DIR "${CMAKE_SOURCE_DIR}")
set(GIT_DIR "${GIT_PARENT_DIR}/.git")
#message ("-----GD: ${GIT_DIR}")
if (EXISTS "${GIT_DIR}")
  set( CGAL_SCM_NAME "git" )
else()
  while(NOT EXISTS "${GIT_DIR}")	# .git dir not found, search parent directories
    set(GIT_PREVIOUS_PARENT "${GIT_PARENT_DIR}")
    get_filename_component(GIT_PARENT_DIR ${GIT_PARENT_DIR} PATH)
    #message ("-----GPD1: ${GIT_PARENT_DIR}")
    #message ("-----PPD1: ${GIT_PREVIOUS_PARENT}")
    if( "${GIT_PARENT_DIR}" STREQUAL "${GIT_PREVIOUS_PARENT}" )
      # We have reached the root directory, we are not in git
      set(_refspecvar "GITDIR-NOTFOUND")
      set(_hashvar "GITDIR-NOTFOUND")
      set ( CGAL_SCM_NAME "" )
      break()
    else()
      set( GIT_DIR "${GIT_PARENT_DIR}/.git" )
      set( CGAL_SCM_NAME "git" )
    endif()
  endwhile()
endif()

#message ("====GPD1: ${GIT_PARENT_DIR}")

if ( "${CGAL_SCM_NAME}" STREQUAL "git" )
  #message ("====GPD2: ${GIT_PARENT_DIR}")

  find_program(GIT_EXECUTABLE git DOC "git command line client")
  EXECUTE_PROCESS(COMMAND ${GIT_EXECUTABLE} --git-dir=${GIT_PARENT_DIR}/.git symbolic-ref HEAD
     OUTPUT_VARIABLE CGAL_GIT_BRANCH_OUT
     OUTPUT_STRIP_TRAILING_WHITESPACE)

  string ( REGEX REPLACE "refs/heads/" "" CGAL_GIT_BRANCH ${CGAL_GIT_BRANCH_OUT})
  # message( STATUS "Git branch ${CGAL_GIT_BRANCH}")

 set ( CGAL_SCM_BRANCH_NAME "${CGAL_GIT_BRANCH}" )

endif()

endif()