Add clang-format configuration

CMakeLists.txt

@@ -25,6 +25,10 @@ include(ECMAddTests)
 include(ECMQtDeclareLoggingCategory)
 include(FeatureSummary)
 include(ECMAddAppIcon)
+if(ECM_VERSION VERSION_GREATER_EQUAL 5.79)
+    include(KDEClangFormat)
+    include(KDEGitCommitHooks)
+endif()
 
 set(KEDITBOOKMARKS_VERSION "5.97.0")
 
@@ -44,3 +48,8 @@ add_subdirectory(doc)
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
 
+if(ECM_VERSION VERSION_GREATER_EQUAL 5.79)
+    file(GLOB_RECURSE ALL_CLANG_FORMAT_SOURCE_FILES *.cpp *.h)
+    kde_clang_format(${ALL_CLANG_FORMAT_SOURCE_FILES})
+    kde_configure_git_pre_commit_hook(CHECKS CLANG_FORMAT)
+endif()