Initial commit

cmake/CLangFormat.cmake

@@ -0,0 +1,24 @@
+set(CLANG_FORMAT "/usr/bin/clang-format-14")
+if(EXISTS ${CLANG_FORMAT})
+    message(STATUS "Found clang-format at ${CLANG_FORMAT}")
+
+    set(SOURCE_DIRS
+        ${CMAKE_SOURCE_DIR}/src
+        ${CMAKE_SOURCE_DIR}/tests
+        ${CMAKE_SOURCE_DIR}/benchmarks
+    )
+
+    # For now, it just hard codes the source files list to globs. That works
+    # fine until we have another directory in `src/`. We should ideally gather
+    # this from SOURCE_FILES list. But, should filter the thirs_party sources.
+    # Taking a quick route for now. We should deal with it sometime down the line.
+    add_custom_target(format
+            COMMENT "Running clang-format"
+            COMMAND find ${SOURCE_DIRS} -name '*.cc' -o -name '*.cpp' -o -name '*.h' | grep -v "_generated.h" | xargs ${CLANG_FORMAT} -i)
+
+    add_custom_target(check-format
+            COMMENT "Running clang-format"
+            COMMAND find ${SOURCE_DIRS} -name '*.cc' -o -name '*.cpp' -o -name '*.h' | grep -v "_generated.h" | xargs ${CLANG_FORMAT} --Werror --dry-run)
+else()
+    message(FATAL_ERROR "clang-format-14 not found")
+endif()