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qt5base-lts/cmake/QtSyncQtHelpers.cmake
Alexandru Croitor 6d20630b06 CMake: Remove unnecessary IF DEFINED HOST_PERL check 
The variable might be defined to HOST_PERL-NOTFOUND which will return
early instead of issuing an error.

Change-Id: Id49dfd0fec8f477dad9e816e6128e36059e68702
Pick-to: 6.2
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2021-09-08 14:20:05 +02:00

204 lines
9.6 KiB
CMake
Raw Blame History

function(qt_ensure_perl)
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()
get_property(QT_SYNCQT GLOBAL PROPERTY _qt_syncqt)
if(NOT "${QT_SYNCQT}" STREQUAL "")
set(QT_SYNCQT "${QT_SYNCQT}" PARENT_SCOPE)
return()
endif()
# When building qtbase, use the source syncqt, otherwise use the installed one.
set(SYNCQT_FROM_SOURCE "${QtBase_SOURCE_DIR}/libexec/syncqt.pl")
if(NOT ("${QtBase_SOURCE_DIR}" STREQUAL "") AND EXISTS "${SYNCQT_FROM_SOURCE}")
set(syncqt_absolute_path "${SYNCQT_FROM_SOURCE}")
message(STATUS "Using source syncqt found at: ${syncqt_absolute_path}")
qt_path_join(syncqt_install_dir ${QT_INSTALL_DIR} ${INSTALL_LIBEXECDIR})
qt_copy_or_install(PROGRAMS "${SYNCQT_FROM_SOURCE}"
DESTINATION "${syncqt_install_dir}")
elseif(NOT "${QT_HOST_PATH}" STREQUAL "")
get_filename_component(syncqt_absolute_path
"${QT_HOST_PATH}/${QT${PROJECT_VERSION_MAJOR}_HOST_INFO_LIBEXECDIR}/syncqt.pl"
ABSOLUTE)
message(STATUS "Using host syncqt found at: ${syncqt_absolute_path}")
else()
get_filename_component(syncqt_absolute_path
"${QT_BUILD_INTERNALS_RELOCATABLE_INSTALL_PREFIX}/${INSTALL_LIBEXECDIR}/syncqt.pl"
ABSOLUTE)
message(STATUS "Using installed syncqt found at: ${syncqt_absolute_path}")
endif()
set(QT_SYNCQT "${syncqt_absolute_path}" PARENT_SCOPE)
set_property(GLOBAL PROPERTY _qt_syncqt "${syncqt_absolute_path}")
endfunction()
function(qt_install_injections target build_dir install_dir)
set(injections ${ARGN})
qt_internal_module_info(module ${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_include_name}/qtqml-config.h (part 1).
#
# Generate a lower case forwarding header (part 2) 'qtqml-config.h' at the following
# location:
# ${some_prefix}/include/${module_include_name}/qtqml-config.h.
#
# Inside this file, we #include the originally generated file,
# ${qtdeclarative_build_dir}/src/{module_include_name}/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/${module_include_name}")
if(destinationdir)
string(APPEND lower_case_forwarding_header_path "/${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_include_name} ${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_include_name}")
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}"
${module_include_name})
qt_install(FILES "${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}/${module_include_name}/private/${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()
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