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Diffstat (limited to 'cmake/QtSyncQtHelpers.cmake')
| -rw-r--r-- | cmake/QtSyncQtHelpers.cmake | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/cmake/QtSyncQtHelpers.cmake b/cmake/QtSyncQtHelpers.cmake new file mode 100644 index 0000000000..a161c8ecbe --- /dev/null +++ b/cmake/QtSyncQtHelpers.cmake @@ -0,0 +1,201 @@ +function(qt_ensure_perl) + if(DEFINED HOST_PERL) + return() + endif() + find_program(HOST_PERL "perl" DOC "Perl binary") + if (NOT HOST_PERL) + message(FATAL_ERROR "Perl needs to be available to build Qt.") + endif() +endfunction() + +function(qt_ensure_sync_qt) + qt_ensure_perl() + if(DEFINED QT_SYNCQT) + return() + endif() + + # When building qtbase, use the source syncqt, otherwise use the installed one. + set(SYNCQT_FROM_SOURCE "${QtBase_SOURCE_DIR}/bin/syncqt.pl") + if(NOT ("${QtBase_SOURCE_DIR}" STREQUAL "") AND EXISTS "${SYNCQT_FROM_SOURCE}") + set(QT_SYNCQT "${SYNCQT_FROM_SOURCE}" CACHE FILEPATH "syncqt script") + message(STATUS "Using source syncqt found at: ${QT_SYNCQT}") + + qt_path_join(syncqt_install_dir ${QT_INSTALL_DIR} ${INSTALL_LIBEXECDIR}) + qt_copy_or_install(PROGRAMS "${SYNCQT_FROM_SOURCE}" + DESTINATION "${syncqt_install_dir}") + + qt_path_join(syncqt_install_dir ${QT_INSTALL_DIR} ${INSTALL_BINDIR}) + qt_copy_or_install(PROGRAMS "${SYNCQT_FROM_SOURCE}" + DESTINATION "${syncqt_install_dir}") + elseif(QT_HOST_PATH) + get_filename_component(syncqt_absolute_path + "${QT_HOST_PATH}/${INSTALL_LIBEXECDIR}/syncqt.pl" + ABSOLUTE) + set(QT_SYNCQT "${syncqt_absolute_path}" CACHE FILEPATH "syncqt script") + message(STATUS "Using host syncqt found at: ${QT_SYNCQT}") + else() + get_filename_component(syncqt_absolute_path + "${QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX}/${INSTALL_LIBEXECDIR}/syncqt.pl" + ABSOLUTE) + set(QT_SYNCQT "${syncqt_absolute_path}" CACHE FILEPATH "syncqt script") + message(STATUS "Using installed syncqt found at: ${QT_SYNCQT}") + endif() +endfunction() + +function(qt_install_injections target build_dir install_dir) + set(injections ${ARGN}) + set(module "Qt${target}") + get_target_property(target_type ${target} TYPE) + if (target_type STREQUAL "INTERFACE_LIBRARY") + set(is_framework FALSE) + else() + get_target_property(is_framework ${target} FRAMEWORK) + endif() + # examples: + # SYNCQT.INJECTIONS = src/corelib/global/qconfig.h:qconfig.h:QtConfig src/corelib/global/qconfig_p.h:5.12.0/QtCore/private/qconfig_p.h + # SYNCQT.INJECTIONS = src/gui/vulkan/qvulkanfunctions.h:^qvulkanfunctions.h:QVulkanFunctions:QVulkanDeviceFunctions src/gui/vulkan/qvulkanfunctions_p.h:^5.12.0/QtGui/private/qvulkanfunctions_p.h + # The are 3 parts to the assignment, divded by colons ':'. + # The first part contains a path to a generated file in a build folder. + # The second part contains the file name that the forwarding header should have, which points + # to the file in the first part. + # The third part contains multiple UpperCaseFileNames that should be forwarding headers to the + # header specified in the second part. + separate_arguments(injections UNIX_COMMAND "${injections}") + foreach(injection ${injections}) + string(REPLACE ":" ";" injection ${injection}) + # Part 1. + list(GET injection 0 file) + # Part 2. + list(GET injection 1 destination) + string(REGEX REPLACE "^\\^" "" destination "${destination}") + list(REMOVE_AT injection 0 1) + # Part 3. + set(fwd_hdrs ${injection}) + get_filename_component(destinationdir ${destination} DIRECTORY) + get_filename_component(destinationname ${destination} NAME) + get_filename_component(original_file_name ${file} NAME) + + # This describes a concrete example for easier comprehension: + # A file 'qtqml-config.h' is generated by qt_internal_feature_write_file into + # ${qtdeclarative_build_dir}/src/{module}/qtqml-config.h (part 1). + # + # Generate a lower case forwarding header (part 2) 'qtqml-config.h' at the following + # location: + # ${some_prefix}/include/${module}/qtqml-config.h. + # + # Inside this file, we #include the originally generated file, + # ${qtdeclarative_build_dir}/src/{module}/qtqml-config.h. + # + # ${some_prefix}'s value depends on the build type. + # If doing a prefix build, it should point to + # ${current_repo_build_dir} which is ${qtdeclarative_build_dir}. + # If doing a non-prefix build, it should point to + # ${qtbase_build_dir}. + # + # In the code below, ${some_prefix} == ${build_dir}. + set(lower_case_forwarding_header_path "${build_dir}/include/${module}") + if(destinationdir) + string(APPEND lower_case_forwarding_header_path "/${destinationdir}") + endif() + set(current_repo_build_dir "${PROJECT_BINARY_DIR}") + + file(RELATIVE_PATH relpath + "${lower_case_forwarding_header_path}" + "${current_repo_build_dir}/${file}") + set(main_contents "#include \"${relpath}\"") + + qt_configure_file(OUTPUT "${lower_case_forwarding_header_path}/${original_file_name}" + CONTENT "${main_contents}") + + if(is_framework) + if(file MATCHES "_p\\.h$") + set(header_type PRIVATE) + else() + set(header_type PUBLIC) + endif() + qt_copy_framework_headers(${target} ${header_type} + ${current_repo_build_dir}/${file}) + else() + # Copy the actual injected (generated) header file (not the just created forwarding one) + # to its install location when doing a prefix build. In an non-prefix build, the qt_install + # will be a no-op. + qt_path_join(install_destination + ${install_dir} ${INSTALL_INCLUDEDIR} ${module} ${destinationdir}) + qt_install(FILES ${current_repo_build_dir}/${file} + DESTINATION ${install_destination} + RENAME ${destinationname} OPTIONAL) + endif() + + # Generate UpperCaseNamed forwarding headers (part 3). + foreach(fwd_hdr ${fwd_hdrs}) + set(upper_case_forwarding_header_path "include/${module}") + if(destinationdir) + string(APPEND upper_case_forwarding_header_path "/${destinationdir}") + endif() + + # Generate upper case forwarding header like QVulkanFunctions or QtConfig. + qt_configure_file(OUTPUT "${build_dir}/${upper_case_forwarding_header_path}/${fwd_hdr}" + CONTENT "#include \"${destinationname}\"\n") + + if(is_framework) + # Copy the forwarding header to the framework's Headers directory. + qt_copy_framework_headers(${target} PUBLIC + "${build_dir}/${upper_case_forwarding_header_path}/${fwd_hdr}") + else() + # Install the forwarding header. + qt_path_join(install_destination "${install_dir}" "${INSTALL_INCLUDEDIR}" ${module}) + qt_install(FILES "${build_dir}/${upper_case_forwarding_header_path}/${fwd_hdr}" + DESTINATION ${install_destination} OPTIONAL) + endif() + endforeach() + endforeach() +endfunction() + +function(qt_read_headers_pri module_include_dir resultVarPrefix) + file(STRINGS "${module_include_dir}/headers.pri" headers_pri_contents) + foreach(line ${headers_pri_contents}) + if("${line}" MATCHES "SYNCQT.HEADER_FILES = (.*)") + set(public_module_headers "${CMAKE_MATCH_1}") + separate_arguments(public_module_headers UNIX_COMMAND "${public_module_headers}") + elseif("${line}" MATCHES "SYNCQT.PRIVATE_HEADER_FILES = (.*)") + set(private_module_headers "${CMAKE_MATCH_1}") + separate_arguments(private_module_headers UNIX_COMMAND "${private_module_headers}") + elseif("${line}" MATCHES "SYNCQT.GENERATED_HEADER_FILES = (.*)") + set(generated_module_headers "${CMAKE_MATCH_1}") + separate_arguments(generated_module_headers UNIX_COMMAND "${generated_module_headers}") + foreach(generated_header ${generated_module_headers}) + list(APPEND public_module_headers "${module_include_dir}/${generated_header}") + endforeach() + elseif("${line}" MATCHES "SYNCQT.INJECTIONS = (.*)") + set(injections "${CMAKE_MATCH_1}") + elseif("${line}" MATCHES "SYNCQT.([A-Z_]+)_HEADER_FILES = (.+)") + set(prefix "${CMAKE_MATCH_1}") + string(TOLOWER "${prefix}" prefix) + set(entries "${CMAKE_MATCH_2}") + separate_arguments(entries UNIX_COMMAND "${entries}") + set("${resultVarPrefix}_${prefix}" "${entries}" PARENT_SCOPE) + endif() + endforeach() + set(${resultVarPrefix}_public "${public_module_headers}" PARENT_SCOPE) + set(${resultVarPrefix}_private "${private_module_headers}" PARENT_SCOPE) + set(${resultVarPrefix}_injections "${injections}" PARENT_SCOPE) +endfunction() + +function(qt_compute_injection_forwarding_header target) + qt_parse_all_arguments(arg "qt_compute_injection_forwarding_header" + "PRIVATE" "SOURCE;OUT_VAR" "" ${ARGN}) + qt_internal_module_info(module "${target}") + get_filename_component(file_name "${arg_SOURCE}" NAME) + + set(source_absolute_path "${CMAKE_CURRENT_BINARY_DIR}/${arg_SOURCE}") + file(RELATIVE_PATH relpath "${PROJECT_BINARY_DIR}" "${source_absolute_path}") + + if (arg_PRIVATE) + set(fwd "${PROJECT_VERSION}/${module}/private/${file_name}") + else() + set(fwd "${file_name}") + endif() + + string(APPEND ${arg_OUT_VAR} " ${relpath}:${fwd}") + set(${arg_OUT_VAR} ${${arg_OUT_VAR}} PARENT_SCOPE) +endfunction() |