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135 lines
4.6 KiB
135 lines
4.6 KiB
cmake_minimum_required(VERSION 3.10)
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project(RerunMocPlugin)
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include("../AutogenCoreTest.cmake")
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# Tests Q_PLUGIN_METADATA and CMAKE_AUTOMOC_DEPEND_FILTERS
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# json file change detection
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# Dummy executable to generate a clean target
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add_executable(dummy dummy.cpp)
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# Utility variables
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set(timeformat "%Y.%j.%H.%M%S")
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set(mocPlugSrcDir "${CMAKE_CURRENT_SOURCE_DIR}/MocPlugin")
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set(mocPlugBinDir "${CMAKE_CURRENT_BINARY_DIR}/MocPlugin")
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# Utility macros
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macro(sleep)
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message(STATUS "Sleeping for a few seconds.")
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execute_process(COMMAND "${CMAKE_COMMAND}" -E sleep 1)
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endmacro()
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macro(rebuild buildName)
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message(STATUS "Starting build ${buildName}.")
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execute_process(COMMAND "${CMAKE_COMMAND}" --build . WORKING_DIRECTORY "${mocPlugBinDir}" RESULT_VARIABLE result)
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if (result)
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message(FATAL_ERROR "Build ${buildName} failed.")
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else()
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message(STATUS "Build ${buildName} finished.")
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endif()
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endmacro()
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macro(require_change PLG)
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if (pl${PLG}After VERSION_GREATER pl${PLG}Before)
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message(STATUS "As expected the file ${pl${PLG}File} changed.")
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else()
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message(SEND_ERROR
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"Unexpectedly the file ${pl${PLG}File} did not change!\nTimestamp pre: ${pl${PLG}Before}\nTimestamp aft: ${pl${PLG}After}\n")
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endif()
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endmacro()
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macro(require_change_not PLG)
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if (pl${PLG}After VERSION_GREATER pl${PLG}Before)
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message(SEND_ERROR
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"Unexpectedly the file ${pl${PLG}File} changed!\nTimestamp pre: ${pl${PLG}Before}\nTimestamp aft: ${pl${PLG}After}\n")
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else()
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message(STATUS "As expected the file ${pl${PLG}File} did not change.")
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endif()
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endmacro()
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macro(acquire_timestamps When)
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file(TIMESTAMP "${plAFile}" plA${When} "${timeformat}")
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file(TIMESTAMP "${plBFile}" plB${When} "${timeformat}")
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file(TIMESTAMP "${plCFile}" plC${When} "${timeformat}")
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file(TIMESTAMP "${plDFile}" plD${When} "${timeformat}")
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file(TIMESTAMP "${plEFile}" plE${When} "${timeformat}")
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endmacro()
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# Initial build
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try_compile(MOC_PLUGIN
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"${mocPlugBinDir}"
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"${mocPlugSrcDir}"
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MocPlugin
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CMAKE_FLAGS "-DQT_TEST_VERSION=${QT_TEST_VERSION}"
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"-DCMAKE_AUTOGEN_VERBOSE=${CMAKE_AUTOGEN_VERBOSE}"
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"-DQT_QMAKE_EXECUTABLE:FILEPATH=${QT_QMAKE_EXECUTABLE}"
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OUTPUT_VARIABLE output
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)
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if (NOT MOC_PLUGIN)
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message(FATAL_ERROR "Initial build of mocPlugin failed. Output: ${output}")
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endif()
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# Get names of the output binaries
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find_library(plAFile "PlugA" PATHS "${mocPlugBinDir}/Debug" "${mocPlugBinDir}" NO_DEFAULT_PATH)
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find_library(plBFile "PlugB" PATHS "${mocPlugBinDir}/Debug" "${mocPlugBinDir}" NO_DEFAULT_PATH)
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find_library(plCFile "PlugC" PATHS "${mocPlugBinDir}/Debug" "${mocPlugBinDir}" NO_DEFAULT_PATH)
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find_library(plDFile "PlugD" PATHS "${mocPlugBinDir}/Debug" "${mocPlugBinDir}" NO_DEFAULT_PATH)
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find_library(plEFile "PlugE" PATHS "${mocPlugBinDir}/Debug" "${mocPlugBinDir}" NO_DEFAULT_PATH)
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# To avoid a race condition where the library has the same timestamp
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# as a source file and therefore gets rebuild
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# - sleep to ensure a timestamp change
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# - rebuild library to ensure it has a new timestamp
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sleep()
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message(STATUS "Rebuilding library files to ensure new timestamps")
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rebuild(1)
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# - Ensure that the timestamp will change.
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# - Change the json files referenced by Q_PLUGIN_METADATA
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# - Rebuild
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acquire_timestamps(Before)
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sleep()
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message(STATUS "Changing json files.")
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configure_file("${mocPlugSrcDir}/jsonIn/StyleD.json" "${mocPlugBinDir}/jsonFiles/StyleC.json")
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configure_file("${mocPlugSrcDir}/jsonIn/StyleE.json" "${mocPlugBinDir}/jsonFiles/sub/StyleD.json")
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configure_file("${mocPlugSrcDir}/jsonIn/StyleC.json" "${mocPlugBinDir}/jsonFiles/StyleE.json")
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sleep()
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rebuild(2)
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acquire_timestamps(After)
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# Test changes
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require_change_not(A)
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require_change_not(B)
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require_change(C)
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require_change(D)
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# There's a bug in Ninja on Windows:
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# https://gitlab.kitware.com/cmake/cmake/-/issues/16776
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if(NOT ("${CMAKE_GENERATOR}" MATCHES "Ninja"))
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require_change(E)
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endif()
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# - Ensure that the timestamp will change.
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# - Change the json files referenced by A_CUSTOM_MACRO
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# - Rebuild
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acquire_timestamps(Before)
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sleep()
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message(STATUS "Changing json files")
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configure_file("${mocPlugSrcDir}/jsonIn/StyleE.json" "${mocPlugBinDir}/jsonFiles/StyleC_Custom.json")
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configure_file("${mocPlugSrcDir}/jsonIn/StyleC.json" "${mocPlugBinDir}/jsonFiles/sub/StyleD_Custom.json")
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configure_file("${mocPlugSrcDir}/jsonIn/StyleD.json" "${mocPlugBinDir}/jsonFiles/StyleE_Custom.json")
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sleep()
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rebuild(3)
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acquire_timestamps(After)
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# Test changes
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require_change_not(A)
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require_change_not(B)
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require_change(C)
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require_change(D)
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# There's a bug in Ninja on Windows
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# https://gitlab.kitware.com/cmake/cmake/-/issues/16776
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if(NOT ("${CMAKE_GENERATOR}" MATCHES "Ninja"))
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require_change(E)
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endif()
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