Merge topic 'dont-rewrite-moc-parameter-file'
17c31b8b
Qt4: Extend the Qt4Targets test to cover dir and target moc parameters.6a5bd7f0
Qt4: write moc parameter file only when content has changed
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commit
58557486db
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@ -135,7 +135,9 @@ function (QT4_CREATE_MOC_COMMAND infile outfile moc_flags moc_options moc_target
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set(targetincludes)
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set(targetdefines)
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else()
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file(WRITE ${_moc_parameters_file} "${_moc_parameters}\n")
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set(CMAKE_CONFIGURABLE_FILE_CONTENT "${_moc_parameters}")
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configure_file("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in"
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"${_moc_parameters_file}" @ONLY)
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endif()
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set(_moc_extra_parameters_file @${_moc_parameters_file})
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@ -37,29 +37,44 @@ set_property(TARGET Qt4WrapMacroTest PROPERTY AUTOMOC OFF)
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target_include_directories(Qt4WrapMacroTest PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/interface")
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target_link_libraries(Qt4WrapMacroTest Qt4::QtGui)
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set(timeformat "%Y%j%H%M%S")
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try_compile(RESULT
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"${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild"
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"${CMAKE_CURRENT_SOURCE_DIR}/IncrementalMoc"
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IncrementalMoc
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CMAKE_FLAGS -DADD_DEF=0 "-DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE}")
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file(TIMESTAMP "${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild/moc_foo.cpp" tsvar_before "${timeformat}")
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if (NOT tsvar_before)
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message(SEND_ERROR "Unable to read timestamp from moc file from first build!")
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endif()
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macro(test_incremental def)
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set(timeformat "%Y%j%H%M%S")
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try_compile(RESULT
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"${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild_${def}"
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"${CMAKE_CURRENT_SOURCE_DIR}/IncrementalMoc"
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IncrementalMoc
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CMAKE_FLAGS -D${def}=0 "-DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE}"
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OUTPUT_VARIABLE output
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)
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file(TIMESTAMP "${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild_${def}/moc_foo.cpp" tsvar_before "${timeformat}")
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if (NOT tsvar_before)
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message(SEND_ERROR
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"Unable to read timestamp from moc file from first build with -D${def}!\n"
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"try_compile output:\n${output}"
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)
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endif()
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execute_process(COMMAND "${CMAKE_COMMAND}" -E sleep 2) # Ensure that the timestamp will change.
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execute_process(COMMAND "${CMAKE_COMMAND}" -E sleep 2) # Ensure that the timestamp will change.
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try_compile(RESULT
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"${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild"
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"${CMAKE_CURRENT_SOURCE_DIR}/IncrementalMoc"
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IncrementalMoc
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CMAKE_FLAGS -DADD_DEF=1 "-DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE}")
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file(TIMESTAMP "${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild/moc_foo.cpp" tsvar_after "${timeformat}")
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if (NOT tsvar_after)
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message(SEND_ERROR "Unable to read timestamp from moc file from second build!")
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endif()
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try_compile(RESULT
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"${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild_${def}"
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"${CMAKE_CURRENT_SOURCE_DIR}/IncrementalMoc"
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IncrementalMoc
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CMAKE_FLAGS -D${def}=1 "-DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE}"
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OUTPUT_VARIABLE output
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)
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file(TIMESTAMP "${CMAKE_CURRENT_BINARY_DIR}/IncrementalMocBuild_${def}/moc_foo.cpp" tsvar_after "${timeformat}")
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if (NOT tsvar_after)
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message(SEND_ERROR
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"Unable to read timestamp from moc file from second build!\n"
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"try_compile output:\n${output}"
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)
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endif()
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if (NOT tsvar_after GREATER tsvar_before)
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message(SEND_ERROR "Rebuild did not re-create moc file. Before: ${tsvar_before}. After: ${tsvar_after}")
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endif()
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if (NOT tsvar_after GREATER tsvar_before)
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message(SEND_ERROR "Rebuild did not re-create moc file with -D${def}. Before: ${tsvar_before}. After: ${tsvar_after}")
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endif()
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endmacro()
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test_incremental(ADD_TARGET_DEF)
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test_incremental(ADD_DIR_DEF)
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@ -4,10 +4,18 @@ project(IncrementalMoc)
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find_package(Qt4 REQUIRED)
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qt4_generate_moc(foo.h moc_foo.cpp)
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if (ADD_TARGET_DEF)
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set(target_args TARGET testlib)
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endif()
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if (ADD_DIR_DEF)
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add_definitions(-DNEW_DEF)
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endif()
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qt4_generate_moc(foo.h moc_foo.cpp ${target_args})
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add_library(testlib foo.cpp moc_foo.cpp)
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target_link_libraries(testlib Qt4::QtCore)
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if (ADD_DEF)
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if (ADD_TARGET_DEF)
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target_compile_definitions(testlib PRIVATE NEW_DEF)
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endif()
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