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cmake_minimum_required(VERSION 3.14)
macro(default name)
if(NOT DEFINED "${name}")
set("${name}" "${ARGN}")
endif()
endmacro()
default(FORMAT_COMMAND clang-format)
default(
PATTERNS
src/*.cc src/*.hh
test/*.cc test/*.hh
)
default(FIX NO)
set(flag --output-replacements-xml)
set(args OUTPUT_VARIABLE output)
if(FIX)
set(flag -i)
set(args "")
endif()
file(GLOB_RECURSE files ${PATTERNS})
set(badly_formatted "")
set(output "")
string(LENGTH "${CMAKE_SOURCE_DIR}/" path_prefix_length)
foreach(file IN LISTS files)
execute_process(
COMMAND "${FORMAT_COMMAND}" --style=file "${flag}" "${file}"
WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
RESULT_VARIABLE result
${args}
)
if(NOT result EQUAL "0")
message(FATAL_ERROR "'${file}': formatter returned with ${result}")
endif()
if(NOT FIX AND output MATCHES "\n<replacement offset")
string(SUBSTRING "${file}" "${path_prefix_length}" -1 relative_file)
list(APPEND badly_formatted "${relative_file}")
endif()
set(output "")
endforeach()
if(NOT badly_formatted STREQUAL "")
list(JOIN badly_formatted "\n" bad_list)
message("The following files are badly formatted:\n\n${bad_list}\n")
message(FATAL_ERROR "Run again with FIX=YES to fix these files.")
endif()
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