include(FindGit)

if(GIT_FOUND AND IS_DIRECTORY "${PROJECT_SOURCE_DIR}/.git")
  set(GIT_BRANCH "")
  set(GIT_COMMIT_HASH "")

  # Get the current working branch
  execute_process(
    COMMAND ${GIT_EXECUTABLE} name-rev --name-only HEAD
    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_BRANCH0
    OUTPUT_STRIP_TRAILING_WHITESPACE
  )

  # Clean Branch name to have only the branch
  STRING(REGEX REPLACE "((origin))+" "" GIT_BRANCH1 ${GIT_BRANCH0})
  STRING(REGEX REPLACE "((remotes))+" "" GIT_BRANCH2 ${GIT_BRANCH1})
  STRING(REGEX REPLACE "\\/+" "" GIT_BRANCH3 ${GIT_BRANCH2})
  STRING(REGEX REPLACE "~[0-9]*" "" GIT_BRANCH4 ${GIT_BRANCH3})
  STRING(REGEX REPLACE "\\^[0-9]*" "" GIT_BRANCH ${GIT_BRANCH4})

  # Get the latest abbreviated commit hash of the working branch
  execute_process(
    COMMAND git log -1 --format=%h
    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
    OUTPUT_VARIABLE GIT_COMMIT_HASH
    OUTPUT_STRIP_TRAILING_WHITESPACE
  )
endif()