b89d63515b
syncqt.pl adds an extra dependency on perl when building Qt. Modern C++
provides the convenient cross-platform way to access a filesystem and
to use regular expressions, so we may replace the perl script with C++
application. The syncqt executable is built at configure time and
installed as QtCore tool. It's running at configure time to deliver the
required header files for IDE to build a consistent code model and at
the build time to keep tracking changes in header files and generate
the missing aliases without reconfiguring. 'syncqt' only parses header
files from a CMake build tree, so the resulting Qt installation only
contains interfacing headers that belong to the platform that Qt is
built for. 'sync.profile' files are not used as the 'source of truth'
for sync qt procedure anymore, all the necessary information is taken
from either CMake files at configure time or from the module header
files while parsing them.
syncqt.pl is still in place since it's required as fallback solution
for a smooth transition to the new syncqt implementation for all qt
repositories.
This patchset only enables the C++ based syncqt for 'qtbase'
repository.
From the performance perspective C++ version works faster then perl
script, also the configure time is reduced significally on subsequent
reconfigurations - up x2 times faster when re-configuring repository,
but it also takes time to compile the tool itself the first time.
Numbers for qtbase:
syncqt.pl syncqt.cpp
initial: 0m16,035s 0m20,413s
reconfig: 0m6,819s 0m3,725s
The syncing procedure can be run separately for each module using
<ModuleName>_sync_headers targets. The 'sync_headers' target can be
used to sync all the modules at once.
Task-number: QTBUG-87480
Task-number: QTBUG-103196
Change-Id: I8c938bcaf88a8713b39bbfd66d9e7ef12b2c3523
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
475 lines
20 KiB
CMake
475 lines
20 KiB
CMake
# Copyright (C) 2022 The Qt Company Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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function(qt_ensure_perl)
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find_program(HOST_PERL "perl" DOC "Perl binary")
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if (NOT HOST_PERL)
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message(FATAL_ERROR "Perl needs to be available to build Qt.")
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endif()
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endfunction()
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function(qt_ensure_sync_qt)
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qt_ensure_perl()
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if(DEFINED QT_SYNCQT)
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return()
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endif()
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get_property(QT_SYNCQT GLOBAL PROPERTY _qt_syncqt)
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if(NOT "${QT_SYNCQT}" STREQUAL "")
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set(QT_SYNCQT "${QT_SYNCQT}" PARENT_SCOPE)
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return()
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endif()
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# When building qtbase, use the source syncqt, otherwise use the installed one.
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set(SYNCQT_FROM_SOURCE "${QtBase_SOURCE_DIR}/libexec/syncqt.pl")
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if(NOT ("${QtBase_SOURCE_DIR}" STREQUAL "") AND EXISTS "${SYNCQT_FROM_SOURCE}")
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set(syncqt_absolute_path "${SYNCQT_FROM_SOURCE}")
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message(STATUS "Using source syncqt found at: ${syncqt_absolute_path}")
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qt_path_join(syncqt_install_dir ${QT_INSTALL_DIR} ${INSTALL_LIBEXECDIR})
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qt_copy_or_install(PROGRAMS "${SYNCQT_FROM_SOURCE}"
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DESTINATION "${syncqt_install_dir}")
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elseif(NOT "${QT_HOST_PATH}" STREQUAL "")
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get_filename_component(syncqt_absolute_path
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"${QT_HOST_PATH}/${QT${PROJECT_VERSION_MAJOR}_HOST_INFO_LIBEXECDIR}/syncqt.pl"
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ABSOLUTE)
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message(STATUS "Using host syncqt found at: ${syncqt_absolute_path}")
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else()
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get_filename_component(syncqt_absolute_path
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"${QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX}/${INSTALL_LIBEXECDIR}/syncqt.pl"
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ABSOLUTE)
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message(STATUS "Using installed syncqt found at: ${syncqt_absolute_path}")
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endif()
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set(QT_SYNCQT "${syncqt_absolute_path}" PARENT_SCOPE)
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set_property(GLOBAL PROPERTY _qt_syncqt "${syncqt_absolute_path}")
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endfunction()
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function(qt_install_injections target build_dir install_dir)
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set(injections ${ARGN})
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qt_internal_module_info(module ${target})
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get_target_property(target_type ${target} TYPE)
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if (target_type STREQUAL "INTERFACE_LIBRARY")
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set(is_framework FALSE)
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else()
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get_target_property(is_framework ${target} FRAMEWORK)
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endif()
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# examples:
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# SYNCQT.INJECTIONS = src/corelib/global/qconfig.h:qconfig.h:QtConfig src/corelib/global/qconfig_p.h:5.12.0/QtCore/private/qconfig_p.h
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# SYNCQT.INJECTIONS = src/gui/vulkan/qvulkanfunctions.h:^qvulkanfunctions.h:QVulkanFunctions:QVulkanDeviceFunctions src/gui/vulkan/qvulkanfunctions_p.h:^5.12.0/QtGui/private/qvulkanfunctions_p.h
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# The are 3 parts to the assignment, divded by colons ':'.
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# The first part contains a path to a generated file in a build folder.
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# The second part contains the file name that the forwarding header should have, which points
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# to the file in the first part.
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# The third part contains multiple UpperCaseFileNames that should be forwarding headers to the
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# header specified in the second part.
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separate_arguments(injections UNIX_COMMAND "${injections}")
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foreach(injection ${injections})
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string(REPLACE ":" ";" injection ${injection})
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# Part 1.
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list(GET injection 0 file)
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# Part 2.
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list(GET injection 1 destination)
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string(REGEX REPLACE "^\\^" "" destination "${destination}")
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list(REMOVE_AT injection 0 1)
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# Part 3.
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set(fwd_hdrs ${injection})
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get_filename_component(destinationdir ${destination} DIRECTORY)
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get_filename_component(destinationname ${destination} NAME)
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get_filename_component(original_file_name ${file} NAME)
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# This describes a concrete example for easier comprehension:
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# A file 'qtqml-config.h' is generated by qt_internal_feature_write_file into
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# ${qtdeclarative_build_dir}/src/{module_include_name}/qtqml-config.h (part 1).
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#
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# Generate a lower case forwarding header (part 2) 'qtqml-config.h' at the following
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# location:
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# ${some_prefix}/include/${module_include_name}/qtqml-config.h.
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#
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# Inside this file, we #include the originally generated file,
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# ${qtdeclarative_build_dir}/src/{module_include_name}/qtqml-config.h.
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#
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# ${some_prefix}'s value depends on the build type.
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# If doing a prefix build, it should point to
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# ${current_repo_build_dir} which is ${qtdeclarative_build_dir}.
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# If doing a non-prefix build, it should point to
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# ${qtbase_build_dir}.
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#
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# In the code below, ${some_prefix} == ${build_dir}.
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set(lower_case_forwarding_header_path "${build_dir}/include/${module_include_name}")
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if(destinationdir)
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string(APPEND lower_case_forwarding_header_path "/${destinationdir}")
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endif()
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set(current_repo_build_dir "${PROJECT_BINARY_DIR}")
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file(RELATIVE_PATH relpath
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"${lower_case_forwarding_header_path}"
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"${current_repo_build_dir}/${file}")
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set(main_contents "#include \"${relpath}\"")
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qt_configure_file(OUTPUT "${lower_case_forwarding_header_path}/${original_file_name}"
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CONTENT "${main_contents}")
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if(is_framework)
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if(file MATCHES "_p\\.h$")
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set(header_type PRIVATE)
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else()
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set(header_type PUBLIC)
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endif()
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qt_copy_framework_headers(${target} ${header_type}
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${current_repo_build_dir}/${file})
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else()
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# Copy the actual injected (generated) header file (not the just created forwarding one)
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# to its install location when doing a prefix build. In an non-prefix build, the qt_install
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# will be a no-op.
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qt_path_join(install_destination
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${install_dir} ${INSTALL_INCLUDEDIR}
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${module_include_name} ${destinationdir})
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qt_install(FILES ${current_repo_build_dir}/${file}
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DESTINATION ${install_destination}
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RENAME ${destinationname} OPTIONAL)
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endif()
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# Generate UpperCaseNamed forwarding headers (part 3).
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foreach(fwd_hdr ${fwd_hdrs})
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set(upper_case_forwarding_header_path "include/${module_include_name}")
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if(destinationdir)
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string(APPEND upper_case_forwarding_header_path "/${destinationdir}")
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endif()
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# Generate upper case forwarding header like QVulkanFunctions or QtConfig.
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qt_configure_file(OUTPUT "${build_dir}/${upper_case_forwarding_header_path}/${fwd_hdr}"
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CONTENT "#include \"${destinationname}\"\n")
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if(is_framework)
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# Copy the forwarding header to the framework's Headers directory.
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qt_copy_framework_headers(${target} PUBLIC
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"${build_dir}/${upper_case_forwarding_header_path}/${fwd_hdr}")
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else()
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# Install the forwarding header.
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qt_path_join(install_destination "${install_dir}" "${INSTALL_INCLUDEDIR}"
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${module_include_name})
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qt_install(FILES "${build_dir}/${upper_case_forwarding_header_path}/${fwd_hdr}"
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DESTINATION ${install_destination} OPTIONAL)
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endif()
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endforeach()
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endforeach()
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endfunction()
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function(qt_read_headers_pri module_include_dir resultVarPrefix)
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file(STRINGS "${module_include_dir}/headers.pri" headers_pri_contents)
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foreach(line ${headers_pri_contents})
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if("${line}" MATCHES "SYNCQT.HEADER_FILES = (.*)")
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set(public_module_headers "${CMAKE_MATCH_1}")
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separate_arguments(public_module_headers UNIX_COMMAND "${public_module_headers}")
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elseif("${line}" MATCHES "SYNCQT.PRIVATE_HEADER_FILES = (.*)")
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set(private_module_headers "${CMAKE_MATCH_1}")
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separate_arguments(private_module_headers UNIX_COMMAND "${private_module_headers}")
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elseif("${line}" MATCHES "SYNCQT.GENERATED_HEADER_FILES = (.*)")
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set(generated_module_headers "${CMAKE_MATCH_1}")
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separate_arguments(generated_module_headers UNIX_COMMAND "${generated_module_headers}")
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foreach(generated_header ${generated_module_headers})
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list(APPEND public_module_headers "${module_include_dir}/${generated_header}")
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endforeach()
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list(TRANSFORM generated_module_headers PREPEND "${module_include_dir}/")
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elseif("${line}" MATCHES "SYNCQT.INJECTIONS = (.*)")
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set(injections "${CMAKE_MATCH_1}")
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elseif("${line}" MATCHES "SYNCQT.([A-Z_]+)_HEADER_FILES = (.+)")
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set(prefix "${CMAKE_MATCH_1}")
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string(TOLOWER "${prefix}" prefix)
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set(entries "${CMAKE_MATCH_2}")
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separate_arguments(entries UNIX_COMMAND "${entries}")
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set("${resultVarPrefix}_${prefix}" "${entries}" PARENT_SCOPE)
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endif()
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endforeach()
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set(${resultVarPrefix}_generated "${generated_module_headers}" PARENT_SCOPE)
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set(${resultVarPrefix}_public "${public_module_headers}" PARENT_SCOPE)
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set(${resultVarPrefix}_private "${private_module_headers}" PARENT_SCOPE)
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set(${resultVarPrefix}_injections "${injections}" PARENT_SCOPE)
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endfunction()
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function(qt_compute_injection_forwarding_header target)
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qt_parse_all_arguments(arg "qt_compute_injection_forwarding_header"
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"PRIVATE" "SOURCE;OUT_VAR" "" ${ARGN})
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qt_internal_module_info(module "${target}")
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get_filename_component(file_name "${arg_SOURCE}" NAME)
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set(source_absolute_path "${CMAKE_CURRENT_BINARY_DIR}/${arg_SOURCE}")
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file(RELATIVE_PATH relpath "${PROJECT_BINARY_DIR}" "${source_absolute_path}")
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if (arg_PRIVATE)
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set(fwd "${PROJECT_VERSION}/${module_include_name}/private/${file_name}")
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else()
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set(fwd "${file_name}")
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endif()
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string(APPEND ${arg_OUT_VAR} " ${relpath}:${fwd}")
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set(${arg_OUT_VAR} ${${arg_OUT_VAR}} PARENT_SCOPE)
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endfunction()
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# The function generates the Qt module header structure in build directory and creates install
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# rules. Apart the lists of header files the function takes into account
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# QT_REPO_PUBLIC_NAMESPACE_REGEX cache variable, that can be set by repository in .cmake.conf file.
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# The variable tells the syncqt program, what namespaces are treated as public. Symbols in public
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# namespaces are considered when generating CaMeL case header files.
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function(qt_internal_target_sync_headers target module_headers module_headers_generated)
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if(NOT TARGET ${QT_CMAKE_EXPORT_NAMESPACE}::syncqt)
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message(FATAL_ERROR "${QT_CMAKE_EXPORT_NAMESPACE}::syncqt is not a target.")
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endif()
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get_target_property(has_headers ${target} _qt_module_has_headers)
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if(NOT has_headers)
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return()
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endif()
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qt_internal_module_info(module "${target}")
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get_target_property(sync_source_directory ${target} _qt_sync_source_directory)
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set(syncqt_timestamp "${CMAKE_CURRENT_BINARY_DIR}/${target}_syncqt_timestamp")
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set(syncqt_outputs "${syncqt_timestamp}")
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set(is_interface_lib FALSE)
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get_target_property(type ${target} TYPE)
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if(type STREQUAL "INTERFACE_LIBRARY")
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set(is_interface_lib TRUE)
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endif()
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set(version_script_private_content_file "")
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if(NOT is_interface_lib)
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list(APPEND syncqt_outputs
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"${module_build_interface_include_dir}/${module}Version"
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"${module_build_interface_include_dir}/qt${module_lower}version.h")
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if(TEST_ld_version_script)
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set(version_script_private_content_file
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"${CMAKE_CURRENT_BINARY_DIR}/${target}.version.private_content")
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set(version_script_args
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"-versionScript" "${version_script_private_content_file}")
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list(APPEND syncqt_outputs "${version_script_private_content_file}")
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qt_internal_add_linker_version_script(${target}
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PRIVATE_CONTENT_FILE "${version_script_private_content_file}")
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endif()
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endif()
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# Check for _qt_module_is_3rdparty_header_library flag to detect non-Qt modules and
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# indicate this to syncqt.
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get_target_property(is_3rd_party_library ${target} _qt_module_is_3rdparty_header_library)
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set(non_qt_module_argument "")
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if(is_3rd_party_library)
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set(non_qt_module_argument "-nonQt")
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else()
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list(APPEND syncqt_outputs "${module_build_interface_include_dir}/${module}")
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if(QT_FEATURE_headersclean)
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list(APPEND syncqt_outputs
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"${CMAKE_CURRENT_BINARY_DIR}/${module}_header_check_exceptions")
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endif()
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endif()
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set(is_framework FALSE)
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if(NOT is_interface_lib)
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get_target_property(is_framework ${target} FRAMEWORK)
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if(is_framework)
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qt_internal_get_framework_info(fw ${target})
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get_target_property(fw_output_base_dir ${target} LIBRARY_OUTPUT_DIRECTORY)
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set(framework_args "-framework"
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"-frameworkIncludeDir" "${fw_output_base_dir}/${fw_versioned_header_dir}"
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)
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endif()
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endif()
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qt_internal_get_qt_all_known_modules(known_modules)
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get_target_property(is_internal_module ${target} _qt_is_internal_module)
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set(internal_module_argument "")
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if(is_internal_module)
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set(internal_module_argument "-internal")
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endif()
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get_target_property(qpa_filter_regex ${target} _qt_module_qpa_headers_filter_regex)
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get_target_property(private_filter_regex ${target} _qt_module_private_headers_filter_regex)
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# We need to use the real paths since otherwise it may lead to the invalid work of the
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# std::filesystem API
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get_filename_component(source_dir_real "${sync_source_directory}" REALPATH)
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get_filename_component(binary_dir_real "${CMAKE_CURRENT_BINARY_DIR}" REALPATH)
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if(QT_REPO_PUBLIC_NAMESPACE_REGEX)
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set(public_namespaces_filter -publicNamespaceFilter "${QT_REPO_PUBLIC_NAMESPACE_REGEX}")
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endif()
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if(qpa_filter_regex)
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set(qpa_filter_argument
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-qpaHeadersFilter "${qpa_filter_regex}"
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)
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endif()
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set(common_syncqt_arguments
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-module "${module}"
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-sourceDir "${source_dir_real}"
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-binaryDir "${binary_dir_real}"
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-privateHeadersFilter "${private_filter_regex}"
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-includeDir "${module_build_interface_include_dir}"
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-privateIncludeDir "${module_build_interface_private_include_dir}"
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-qpaIncludeDir "${module_build_interface_qpa_include_dir}"
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${qpa_filter_argument}
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${public_namespaces_filter}
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${non_qt_module_argument}
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${internal_module_argument}
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)
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if(QT_INTERNAL_ENABLE_SYNCQT_DEBUG_OUTPUT)
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list(APPEND common_syncqt_arguments -debug)
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endif()
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if(is_framework)
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list(REMOVE_ITEM module_headers "${CMAKE_CURRENT_BINARY_DIR}/${target}_fake_header.h")
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endif()
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# Filter the generated ui_ header files and header files located in the 'doc/' subdirectory.
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list(FILTER module_headers EXCLUDE REGEX
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"(.+/(ui_)[^/]+\\.h|${CMAKE_CURRENT_SOURCE_DIR}(/.+)?/doc/+\\.h)")
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set(module_headers_rsp "${binary_dir_real}/module_headers")
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list(JOIN module_headers "\n" module_headers_string)
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qt_configure_file_v2(OUTPUT "${module_headers_rsp}" CONTENT "${module_headers_string}")
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set(module_headers_generated_rsp "${binary_dir_real}/module_headers_generated")
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list(JOIN module_headers_generated "\n" module_headers_generated_string)
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qt_configure_file_v2(OUTPUT "${module_headers_generated_rsp}" CONTENT
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"${module_headers_generated_string}")
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set(syncqt_staging_dir "${module_build_interface_include_dir}/.syncqt_staging")
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add_custom_command(
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OUTPUT
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${syncqt_outputs}
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COMMAND
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${QT_CMAKE_EXPORT_NAMESPACE}::syncqt
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${common_syncqt_arguments}
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-headers "@${module_headers_rsp}"
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-generatedHeaders "@${module_headers_generated_rsp}"
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-stagingDir "${syncqt_staging_dir}"
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-knownModules ${known_modules}
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${framework_args}
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${version_script_args}
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COMMAND
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${CMAKE_COMMAND} -E touch "${syncqt_timestamp}"
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DEPENDS
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${module_headers_rsp}
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${module_headers_generated_rsp}
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${module_headers}
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${QT_CMAKE_EXPORT_NAMESPACE}::syncqt
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COMMENT
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"Running syncqt.cpp for module: ${module}"
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VERBATIM
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)
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add_custom_target(${target}_sync_headers
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DEPENDS
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${syncqt_outputs}
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)
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add_dependencies(sync_headers ${target}_sync_headers)
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# This target is required when building docs, to make all header files and their aliases
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# available for qdoc.
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# ${target}_sync_headers is added as dependency to make sure that
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# ${target}_sync_all_public_headers is running after ${target}_sync_headers, when building docs.
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add_custom_target(${target}_sync_all_public_headers
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COMMAND
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${QT_CMAKE_EXPORT_NAMESPACE}::syncqt
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${common_syncqt_arguments}
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-all
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DEPENDS
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${module_headers}
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${QT_CMAKE_EXPORT_NAMESPACE}::syncqt
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${target}_sync_headers
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VERBATIM
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)
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if(NOT TARGET sync_all_public_headers)
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add_custom_target(sync_all_public_headers)
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endif()
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add_dependencies(sync_all_public_headers ${target}_sync_all_public_headers)
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if(NOT is_3rd_party_library AND NOT is_framework)
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# Install all the CaMeL style aliases of header files from the staging directory in one rule
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qt_install(DIRECTORY "${syncqt_staging_dir}/"
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DESTINATION "${module_install_interface_include_dir}"
|
|
)
|
|
endif()
|
|
|
|
if(NOT is_interface_lib)
|
|
set_property(TARGET ${target}
|
|
APPEND PROPERTY AUTOGEN_TARGET_DEPENDS "${target}_sync_headers")
|
|
endif()
|
|
add_dependencies(${target} "${target}_sync_headers")
|
|
|
|
|
|
get_target_property(private_module_target ${target} _qt_private_module_target_name)
|
|
if(private_module_target)
|
|
add_dependencies(${private_module_target} "${target}_sync_headers")
|
|
endif()
|
|
|
|
# Run sync Qt first time at configure step to make all header files available for the code model
|
|
# of IDEs.
|
|
get_property(synced_modules GLOBAL PROPERTY _qt_synced_modules)
|
|
if(NOT "${module}" IN_LIST synced_modules)
|
|
message(STATUS "Running syncqt.cpp for module: ${module}")
|
|
get_target_property(syncqt_location ${QT_CMAKE_EXPORT_NAMESPACE}::syncqt LOCATION)
|
|
execute_process(
|
|
COMMAND
|
|
${syncqt_location}
|
|
${common_syncqt_arguments}
|
|
-headers "@${module_headers_rsp}"
|
|
-generatedHeaders "@${module_headers_generated_rsp}"
|
|
-stagingDir "${syncqt_staging_dir}"
|
|
-knownModules ${known_modules}
|
|
${framework_args}
|
|
RESULT_VARIABLE syncqt_result
|
|
OUTPUT_VARIABLE syncqt_output
|
|
ERROR_VARIABLE syncqt_output
|
|
)
|
|
if(NOT syncqt_result EQUAL 0)
|
|
message(FATAL_ERROR
|
|
"Unable to execute syncqt.cpp for module ${target}: ${syncqt_output}")
|
|
endif()
|
|
set_property(GLOBAL APPEND PROPERTY _qt_synced_modules ${module})
|
|
endif()
|
|
endfunction()
|
|
|
|
function(qt_internal_collect_sync_header_dependencies out_var skip_non_existing)
|
|
if(NOT QT_USE_SYNCQT_CPP)
|
|
set(${out_var} "" PARENT_SCOPE)
|
|
return()
|
|
endif()
|
|
|
|
list(LENGTH ARGN sync_headers_target_count)
|
|
if(sync_headers_target_count EQUAL 0)
|
|
message(FATAL_ERROR "Invalid use of qt_internal_collect_sync_header_dependencies,"
|
|
" dependencies are not specified")
|
|
endif()
|
|
|
|
set(${out_var} "")
|
|
foreach(sync_headers_target IN LISTS ARGN)
|
|
set(sync_headers_target "${sync_headers_target}_sync_headers")
|
|
if(NOT skip_non_existing OR TARGET ${sync_headers_target})
|
|
list(APPEND ${out_var} ${sync_headers_target})
|
|
endif()
|
|
endforeach()
|
|
list(REMOVE_DUPLICATES ${out_var})
|
|
|
|
set(${out_var} "${${out_var}}" PARENT_SCOPE)
|
|
endfunction()
|
|
|
|
function(qt_internal_add_sync_header_dependencies target)
|
|
qt_internal_collect_sync_header_dependencies(sync_headers_targets FALSE ${ARGN})
|
|
if(sync_headers_targets)
|
|
add_dependencies(${target} ${sync_headers_targets})
|
|
endif()
|
|
endfunction()
|
|
|
|
function(qt_internal_add_autogen_sync_header_dependencies target)
|
|
qt_internal_collect_sync_header_dependencies(sync_headers_targets TRUE ${ARGN})
|
|
foreach(sync_headers_target IN LISTS sync_headers_targets)
|
|
set_property(TARGET ${target} APPEND PROPERTY AUTOGEN_TARGET_DEPENDS
|
|
"${sync_headers_target}")
|
|
endforeach()
|
|
endfunction()
|