build FEATURE source formatting using uncrustify
diff --git a/CMakeModules/SourceFormat.cmake b/CMakeModules/SourceFormat.cmake
new file mode 100644
index 0000000..76132a4
--- /dev/null
+++ b/CMakeModules/SourceFormat.cmake
@@ -0,0 +1,32 @@
+# format source files with uncrustify
+
+# check that format checking is available - always use before SOURCE_FORMAT
+macro(SOURCE_FORMAT_ENABLE)
+ find_package(Uncrustify 0.71)
+ if(UNCRUSTIFY_FOUND)
+ set(SOURCE_FORMAT_ENABLED TRUE)
+ else()
+ set(SOURCE_FORMAT_ENABLED FALSE)
+ endif()
+endmacro()
+
+# files are expected to be a list and relative paths are resolved wtih respect to CMAKE_SOURCE DIR
+macro(SOURCE_FORMAT)
+ if(NOT ${ARGC})
+ message(FATAL_ERROR "source_format() needs a list of files to format!")
+ endif()
+
+ if(SOURCE_FORMAT_ENABLED)
+ add_custom_target(format
+ COMMAND ${UNCRUSTIFY} -c ${CMAKE_SOURCE_DIR}/uncrustify.cfg --no-backup --replace ${ARGN}
+ WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+ COMMENT "Formating sources with ${UNCRUSTIFY} ...")
+
+ add_custom_target(format-check
+ COMMAND ${UNCRUSTIFY} -c ${CMAKE_SOURCE_DIR}/uncrustify.cfg --check ${ARGN}
+ WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+ COMMENT "Checking format of the sources with ${UNCRUSTIFY} ...")
+
+ set(SOURCE_FORMAT_ENABLED TRUE)
+ endif()
+endmacro()