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cmake_minimum_required(VERSION 3.1)
project(CustomCommandByproducts C)
# Generate a byproduct in a rule that runs in the target consuming it.
add_custom_command(
OUTPUT timestamp1.txt
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_CURRENT_SOURCE_DIR}/byproduct1.c.in byproduct1.c
BYPRODUCTS byproduct1.c
COMMAND ${CMAKE_COMMAND} -E touch timestamp1.txt
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/byproduct1.c.in
)
# Generate a byproduct in a rule that runs in a dependency of the consumer.
add_custom_command(
OUTPUT timestamp2.txt
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_CURRENT_SOURCE_DIR}/byproduct2.c.in byproduct2.c
BYPRODUCTS byproduct2.c
COMMAND ${CMAKE_COMMAND} -E touch timestamp2.txt
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/byproduct2.c.in
)
add_custom_target(Producer2 DEPENDS timestamp2.txt)
# Generate a byproduct in a custom target.
add_custom_target(Producer3_4
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_CURRENT_SOURCE_DIR}/byproduct3.c.in byproduct3.c
BYPRODUCTS byproduct3.c
)
# Generate a byproduct in a custom target POST_BUILD command.
add_custom_command(
TARGET Producer3_4 POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_CURRENT_SOURCE_DIR}/byproduct4.c.in byproduct4.c
BYPRODUCTS byproduct4.c
)
add_executable(ProducerExe ProducerExe.c)
# Generate a byproduct in an executable POST_BUILD command.
add_custom_command(
TARGET ProducerExe POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_CURRENT_SOURCE_DIR}/byproduct5.c.in byproduct5.c
BYPRODUCTS byproduct5.c
)
# Generate a byproduct in an executable PRE_LINK command.
add_custom_command(
TARGET ProducerExe PRE_LINK
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_CURRENT_SOURCE_DIR}/byproduct6.c.in byproduct6.c
BYPRODUCTS byproduct6.c
)
# Generate a byproduct in an executable PRE_BUILD command.
add_custom_command(
TARGET ProducerExe PRE_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_CURRENT_SOURCE_DIR}/byproduct7.c.in byproduct7.c
BYPRODUCTS byproduct7.c
)
# Generate a byproduct in a custom command that consumes other byproducts.
add_custom_command(OUTPUT timestamp8.txt
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_CURRENT_SOURCE_DIR}/byproduct8.c.in byproduct8.c
COMMAND ${CMAKE_COMMAND} -E touch timestamp8.txt
BYPRODUCTS byproduct8.c
DEPENDS
${CMAKE_CURRENT_BINARY_DIR}/byproduct2.c
${CMAKE_CURRENT_BINARY_DIR}/byproduct3.c
${CMAKE_CURRENT_BINARY_DIR}/byproduct4.c
${CMAKE_CURRENT_BINARY_DIR}/byproduct5.c
${CMAKE_CURRENT_BINARY_DIR}/byproduct6.c
${CMAKE_CURRENT_BINARY_DIR}/byproduct7.c
${CMAKE_CURRENT_SOURCE_DIR}/byproduct8.c.in
)
# Generate the library file of an imported target as a byproduct
# of an external project.
if(CMAKE_CONFIGURATION_TYPES)
set(cfg /${CMAKE_CFG_INTDIR})
else()
set(cfg)
endif()
set(ExternalLibrary_LIBRARY
${CMAKE_CURRENT_BINARY_DIR}/External-build${cfg}/${CMAKE_STATIC_LIBRARY_PREFIX}ExternalLibrary${CMAKE_STATIC_LIBRARY_SUFFIX}
)
include(ExternalProject)
ExternalProject_Add(ExternalTarget
SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/External"
BINARY_DIR "${CMAKE_CURRENT_BINARY_DIR}/External-build"
PREFIX "${CMAKE_CURRENT_BINARY_DIR}/External-build/root"
DOWNLOAD_COMMAND ""
INSTALL_COMMAND ""
BUILD_BYPRODUCTS "${ExternalLibrary_LIBRARY}"
)
add_library(ExternalLibrary STATIC IMPORTED)
set_property(TARGET ExternalLibrary PROPERTY IMPORTED_LOCATION ${ExternalLibrary_LIBRARY})
add_dependencies(ExternalLibrary ExternalTarget)
# Add an executable consuming all the byproducts.
add_executable(CustomCommandByproducts
CustomCommandByproducts.c
byproduct1.c timestamp1.txt
byproduct2.c
byproduct3.c
byproduct4.c
byproduct5.c
byproduct6.c
byproduct7.c
byproduct8.c timestamp8.txt
)
add_dependencies(CustomCommandByproducts Producer2)
add_dependencies(CustomCommandByproducts Producer3_4)
add_dependencies(CustomCommandByproducts ProducerExe)
target_link_libraries(CustomCommandByproducts ExternalLibrary)
if(CMAKE_GENERATOR STREQUAL "Ninja")
add_custom_target(CheckNinja ALL
COMMENT "Checking build.ninja"
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_SOURCE_DIR}/ninja-check.cmake
)
endif()