add cppchec and clangformat to travis build

.travis.yml

@@ -16,6 +16,8 @@ arch:
         - mkdir awesome-widgets/build
         - cd awesome-widgets/build && cmake -DKDE_INSTALL_USE_QT_SYS_PATHS=ON -DCMAKE_BUILD_TYPE=Optimization -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_FUTURE=ON -DBUILD_TESTING=ON ../sources
         - cd awesome-widgets/build && make
+        - cd awesome-widgets/build && make cppcheck
+        - cd awesome-widgets/build && make clangformat && { [ `git status -s | wc -l` -eq 0 ] || exit 1 }
         - cd awesome-widgets/build && xvfb-run make test
         - sleep 3
 

sources/cppcheck.cmake

@@ -14,10 +14,12 @@ endforeach ()
 add_custom_target(
         cppcheck
         COMMAND ${CPPCHECK_EXECUTABLE}
-        --enable=warning,performance,portability,information,missingInclude
+        --enable=warning,performance,portability
+        --error-exitcode=1
         --std=c++11
         --language=c++
         --library=qt.cfg
+        --project=compile_commands.json
         --template="[{severity}][{id}] {message} {callstack} \(On {file}:{line}\)"
         --verbose
         --quiet