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cmake: Add support for builtin codegen target

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Additionally, this change removes unnecessary braces in the `if()`
command for improved robustness, readability and consistency with CMake
guidelines.
This commit is contained in:
Hennadii Stepanov 2025-02-13 12:29:53 +00:00
parent a8c78a0574
commit ecf54a32ed
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GPG key ID: 410108112E7EA81F
2 changed files with 17 additions and 1 deletions
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8
CMakeLists.txt
View file

@ -9,10 +9,16 @@
# - CMake 3.26.5, https://mirror.stream.centos.org/9-stream/AppStream/x86_64/os/Packages/
cmake_minimum_required(VERSION 3.22)
if (${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR})
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
message(FATAL_ERROR "In-source builds are not allowed.")
endif()
if(POLICY CMP0171)
# `codegen` is a reserved target name.
# See: https://cmake.org/cmake/help/latest/policy/CMP0171.html
cmake_policy(SET CMP0171 NEW)
endif()
#=============================
# Project / Package metadata
#=============================

10
cmake/module/TargetDataSources.cmake
View file

@ -7,6 +7,14 @@ macro(set_add_custom_command_options)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.27)
set(DEPENDS_EXPLICIT_OPT DEPENDS_EXPLICIT_ONLY)
endif()
set(CODEGEN_OPT "")
if(POLICY CMP0171)
cmake_policy(GET CMP0171 _cmp0171_status)
if(_cmp0171_status STREQUAL "NEW")
set(CODEGEN_OPT CODEGEN)
endif()
unset(_cmp0171_status)
endif()
endmacro()
# Specifies JSON data files to be processed into corresponding
@ -20,6 +28,7 @@ function(target_json_data_sources target)
COMMAND ${CMAKE_COMMAND} -DJSON_SOURCE_PATH=${CMAKE_CURRENT_SOURCE_DIR}/${json_file} -DHEADER_PATH=${header} -P ${PROJECT_SOURCE_DIR}/cmake/script/GenerateHeaderFromJson.cmake
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${json_file} ${PROJECT_SOURCE_DIR}/cmake/script/GenerateHeaderFromJson.cmake
VERBATIM
${CODEGEN_OPT}
${DEPENDS_EXPLICIT_OPT}
)
target_sources(${target} PRIVATE ${header})
@ -38,6 +47,7 @@ function(target_raw_data_sources target)
COMMAND ${CMAKE_COMMAND} -DRAW_SOURCE_PATH=${CMAKE_CURRENT_SOURCE_DIR}/${raw_file} -DHEADER_PATH=${header} -DRAW_NAMESPACE=${__NAMESPACE} -P ${PROJECT_SOURCE_DIR}/cmake/script/GenerateHeaderFromRaw.cmake
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${raw_file} ${PROJECT_SOURCE_DIR}/cmake/script/GenerateHeaderFromRaw.cmake
VERBATIM
${CODEGEN_OPT}
${DEPENDS_EXPLICIT_OPT}
)
target_sources(${target} PRIVATE ${header})