cmake/ClangFormat.cmake

   1 # get all project files
   2 file(GLOB_RECURSE ALL_SOURCE_FILES *.cpp *.c *.h *.m *.java)
   3 # minimum version required
   4 set(_CLANG_FORMAT_MINIMUM_VERSION 7.0.0)
   5
   6 find_program(CLANG_FORMAT
   7         NAMES
   8         clang-format-8
   9         clang-format-7
  10         clang-format
  11         )
  12
  13 if (NOT CLANG_FORMAT)
  14         message(WARNING "clang-format not found in path! code format target not available.")
  15 else()
  16         execute_process(
  17                 COMMAND ${CLANG_FORMAT} "--version"
  18                 OUTPUT_VARIABLE _CLANG_FORMAT_VERSION
  19                 RESULT_VARIABLE _CLANG_FORMAT_VERSION_FAILED
  20                 )
  21
  22         if (_CLANG_FORMAT_VERSION_FAILED)
  23                 message(WARNING "A problem was encounterd with ${CLANG_FORMAT}")
  24                 return()
  25         endif()
  26
  27         string(REGEX MATCH "([7-9]|[1-9][0-9])\\.[0-9]\\.[0-9]" CLANG_FORMAT_VERSION
  28                 "${_CLANG_FORMAT_VERSION}")
  29
  30         if (NOT CLANG_FORMAT_VERSION)
  31                 message(WARNING "problem parsing clang-fromat version for ${CLANG_FORMAT}")
  32                 return()
  33         endif()
  34
  35         if (${CLANG_FORMAT_VERSION} VERSION_LESS ${_CLANG_FORMAT_MINIMUM_VERSION})
  36                 message(WARNING "clang-format version ${CLANG_FORMAT_VERSION} not supported")
  37                 message(WARNING "Minimum version required: ${_CLANG_FORMAT_MINIMUM_VERSION}")
  38                 return()
  39         endif()
  40
  41         add_custom_target(
  42                         clangformat
  43                         COMMAND ${CLANG_FORMAT}
  44                         -style=file
  45                         -i
  46                         ${ALL_SOURCE_FILES}
  47                         )
  48 endif()