# Set up version numbers according to the new scheme.
set(SM_VERSION_MAJOR 5)
set(SM_VERSION_MINOR 0)
set(SM_VERSION_PATCH 9)
set(SM_VERSION_TRADITIONAL "${SM_VERSION_MAJOR}.${SM_VERSION_MINOR}.${SM_VERSION_PATCH}")

execute_process(COMMAND git rev-parse --short HEAD
  WORKING_DIRECTORY "${SM_ROOT_DIR}"
  OUTPUT_VARIABLE SM_VERSION_GIT_HASH
  RESULT_VARIABLE ret
  OUTPUT_STRIP_TRAILING_WHITESPACE
)

if(NOT (ret STREQUAL "0"))
  message(WARNING "git was not found on your path. If you collect bug reports, please add git to your path and rerun cmake.")
  set(SM_VERSION_GIT_HASH "UNKNOWN")
  set(SM_VERSION_FULL "${SM_VERSION_MAJOR}.${SM_VERSION_MINOR}-${SM_VERSION_GIT_HASH}")
  set(SM_VERSION_GIT "${SM_VERSION_MAJOR}.${SM_VERSION_MINOR}-${SM_VERSION_GIT_HASH}")
else()
  set(SM_VERSION_FULL "${SM_VERSION_MAJOR}.${SM_VERSION_MINOR}-git-${SM_VERSION_GIT_HASH}")
  set(SM_VERSION_GIT "${SM_VERSION_MAJOR}.${SM_VERSION_MINOR}-git-${SM_VERSION_GIT_HASH}")
endif()

if (CMAKE_MAJOR_VERSION STREQUAL "3")
  # Use the CMake 3 approach whenever possible.
  string(TIMESTAMP SM_TIMESTAMP_DATE "%Y%m%d")
  string(TIMESTAMP SM_TIMESTAMP_TIME "%H:%M:%S" UTC)
else()
  if(MSVC)
    message(STATUS "Getting date and time information via PowerShell. This may take a few seconds.")
    execute_process(
      COMMAND powershell get-date -format "{yyyyMMdd}"
      OUTPUT_VARIABLE SM_TIMESTAMP_DATE
      RESULT_VARIABLE ret
      OUTPUT_STRIP_TRAILING_WHITESPACE
    )

    execute_process(
      COMMAND powershell get-date -format "{HH:mm:ss zzz}"
      OUTPUT_VARIABLE SM_TIMESTAMP_TIME
      RESULT_VARIABLE ret
      OUTPUT_STRIP_TRAILING_WHITESPACE
    )
  else()
    execute_process(
      COMMAND date "+%Y%m%d"
      OUTPUT_VARIABLE SM_TIMESTAMP_DATE
      RESULT_VARIABLE ret
      OUTPUT_STRIP_TRAILING_WHITESPACE
    )

    execute_process(
      COMMAND date "+%H:%M:%S %z"
      OUTPUT_VARIABLE SM_TIMESTAMP_TIME
      RESULT_VARIABLE ret
      OUTPUT_STRIP_TRAILING_WHITESPACE
    )
  endif()

  if (NOT (ret STREQUAL "0"))
    set(SM_TIMESTAMP_DATE "xxxxyyzz")
  endif()

  if (NOT (ret STREQUAL "0"))
    set(SM_TIMESTAMP_TIME "xx:yy:zz ???")
  endif()
endif()