also run clang-format checking automatically as unit test

CMakeLists.txt

@@ -108,9 +108,12 @@ if (CMAKE_BUILD_TYPE STREQUAL Coverage)
   add_custom_target(coverage DEPENDS coverage-report)
 endif ()
 
-# add call to do-interaction to run as unit-test-case
+# add call to ./do-copyright.py to run as unit-test-case
 add_test (NAME copyright_notices COMMAND "./do-copyright.py" WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
 
+# add call to do-clang-format.sh checking to run as unit-test-case
+add_test (NAME clang_format COMMAND ./do-clang-format.sh check WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
+
 find_package (Pythia8) # optional
 find_package (Eigen3 REQUIRED)
 

do-clang-format.sh

-clang-format -i -style=file `find . -iregex '^.*\.\(cc\|h\)$' -not -path './ThirdParty/*'`
+#!/bin/bash
+
+command="clang-format -style=file `find . -iregex '^.*\.\(cc\|h\)$' -not -path './ThirdParty/*'`"
+
+if [ "$1" == "check" ];
+then
+    ! ${command}  -output-replacements-xml | grep -c "<replacement " 
+else
+    ${command} -i
+fi