qtbase/cmake/QtPostProcess.cmake

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function(qt_internal_write_depends_file target)
set(module Qt${target})
Implement developer / non-prefix builds A non-prefix build is a build where you don't have to run make install. To do a non-prefix build, pass -DFEATURE_developer_build=ON when invoking CMake on qtbase. Note that this of course also enables developer build features (private tests, etc). When doing a non-prefix build, the CMAKE_INSTALL_PREFIX cache variable will point to the qtbase build directory. Tests can be run without installing Qt (QPA plugins are picked up from the build dir). This patch stops installation of any files by forcing the make "install" target be a no-op. When invoking cmake on the qtsvg module (or any other module), the CMAKE_INSTALL_PREFIX variable should be set to the qtbase build directory. The developer-build feature is propagated via the QtCore Config file, so that when building other modules, you don't have to specify it on the command line again. As a result of the change, all libraries, plugins, tools, include dirs, CMake Config files, CMake Targets files, Macro files, etc, will be placed in the qtbase build directory, mimicking the file layout of an installed Qt file layout. Only examples and tests are kept in the separate module build directories, which is equivalent to how qmake does it. The following global variables contain paths for the appropriate prefix or non prefix builds: QT_BUILD_DIR, QT_INSTALL_DIR, QT_CONFIG_BUILD_DIR, QT_CONFIG_INSTALL_DIR. These should be used by developers when deciding where files should be placed. All usages of install() are replaced by qt_install(), which has some additional logic on how to handle associationg of CMake targets to export names. When installing files, some consideration should be taken if qt_copy_or_install() needs to be used instead of qt_install(), which takes care of copying files from the source dir to the build dir when doing non-prefix builds. Tested with qtbase and qtsvg, developer builds, non-developer builds and static developer builds on Windows, Linux and macOS. Task-number: QTBUG-75581 Change-Id: I0ed27fb6467662dd24fb23aee6b95dd2c9c4061f Reviewed-by: Kevin Funk <kevin.funk@kdab.com> Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-08 12:45:41 +00:00
set(outfile "${QT_BUILD_DIR}/include/${module}/${module}Depends")
message("Generate ${outfile}...")
set(contents "/* This file was generated by cmake with the info from ${module} target. */\n")
string(APPEND contents "#ifdef __cplusplus /* create empty PCH in C mode */\n")
foreach (m ${ARGN})
string(APPEND contents "# include <Qt${m}/Qt${m}>\n")
endforeach()
string(APPEND contents "#endif\n")
file(GENERATE OUTPUT "${outfile}" CONTENT "${contents}")
endfunction()
macro(qt_collect_third_party_deps)
# If we are doing a non-static Qt build, we only want to propagate public dependencies.
# If we are doing a static Qt build, we need to propagate all dependencies.
set(depends_var "public_depends")
if(NOT QT_BUILD_SHARED_LIBS)
set(depends_var "depends")
endif()
foreach(dep ${${depends_var}})
# Gather third party packages that should be found when using the Qt module.
# Also handle nolink target dependencies.
string(REGEX REPLACE "_nolink$" "" base_dep "${dep}")
if(NOT base_dep STREQUAL dep)
# Resets target name like Vulkan_nolink to Vulkan, because we need to call
# find_package(Vulkan).
set(dep ${base_dep})
endif()
if(TARGET ${dep})
list(FIND third_party_deps_seen ${dep} dep_seen)
get_target_property(package_name ${dep} INTERFACE_QT_PACKAGE_NAME)
if(dep_seen EQUAL -1 AND package_name)
list(APPEND third_party_deps_seen ${dep})
get_target_property(package_version ${dep} INTERFACE_QT_PACKAGE_VERSION)
if(NOT package_version)
set(package_version "")
endif()
get_target_property(package_components ${dep} INTERFACE_QT_PACKAGE_COMPONENTS)
if(NOT package_components)
set(package_components "")
endif()
list(APPEND third_party_deps
"${package_name}\;${package_version}\;${package_components}")
endif()
endif()
endforeach()
endmacro()
function(qt_internal_create_module_depends_file target)
get_target_property(target_type "${target}" TYPE)
if(target_type STREQUAL "INTERFACE_LIBRARY")
set(arg_HEADER_MODULE ON)
else()
set(arg_HEADER_MODULE OFF)
endif()
if(NOT arg_HEADER_MODULE)
get_target_property(depends "${target}" LINK_LIBRARIES)
endif()
get_target_property(public_depends "${target}" INTERFACE_LINK_LIBRARIES)
# Used for collecting Qt module dependencies that should be find_package()'d in
# ModuleDependencies.cmake.
get_target_property(target_deps "${target}" _qt_target_deps)
set(target_deps_seen "")
if(NOT arg_HEADER_MODULE)
get_target_property(extra_depends "${target}" QT_EXTRA_PACKAGE_DEPENDENCIES)
endif()
if(NOT extra_depends STREQUAL "${extra_depends}-NOTFOUND")
list(APPEND target_deps ${extra_depends})
endif()
# Used for assembling the content of an include/Module/ModuleDepends.h header.
set(qtdeps "")
# Used for collecting third party dependencies that should be find_package()'d in
# ModuleDependencies.cmake.
set(third_party_deps "")
set(third_party_deps_seen "")
# Used for collecting Qt tool dependencies that should be find_package()'d in
# ModuleToolsDependencies.cmake.
set(tool_deps "")
set(tool_deps_seen "")
# Used for collecting Qt tool dependencies that should be find_package()'d in
# ModuleDependencies.cmake.
set(main_module_tool_deps "")
qt_internal_get_qt_all_known_modules(known_modules)
set(all_depends ${depends} ${public_depends})
foreach (dep ${all_depends})
# Normalize module by stripping leading "Qt::" and trailing "Private"
if (dep MATCHES "Qt::(.*)")
set(dep "${CMAKE_MATCH_1}")
endif()
if (dep MATCHES "(.*)Private")
set(dep "${CMAKE_MATCH_1}")
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
endif()
list(FIND known_modules "${dep}" _pos)
if (_pos GREATER -1)
list(APPEND qtdeps "${dep}")
# Make the ModuleTool package depend on dep's ModuleTool package.
list(FIND tool_deps_seen ${dep} dep_seen)
if(dep_seen EQUAL -1 AND ${dep} IN_LIST QT_KNOWN_MODULES_WITH_TOOLS)
list(APPEND tool_deps_seen ${dep})
list(APPEND tool_deps
"${INSTALL_CMAKE_NAMESPACE}${dep}Tools\;${PROJECT_VERSION}")
endif()
endif()
endforeach()
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
qt_collect_third_party_deps()
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
# Add dependency to the main ModuleTool package to ModuleDependencies file.
if(${target} IN_LIST QT_KNOWN_MODULES_WITH_TOOLS)
set(main_module_tool_deps
"${INSTALL_CMAKE_NAMESPACE}${target}Tools\;${PROJECT_VERSION}")
endif()
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
# Dirty hack because https://gitlab.kitware.com/cmake/cmake/issues/19200
foreach(dep ${target_deps})
if(dep)
list(FIND target_deps_seen "${dep}" dep_seen)
if(dep_seen EQUAL -1)
list(LENGTH dep len)
if(NOT (len EQUAL 2))
message(FATAL_ERROR "List '${dep}' should look like QtFoo;version")
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
endif()
list(GET dep 0 dep_name)
list(GET dep 1 dep_ver)
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
list(APPEND target_deps_seen "${dep_name}\;${dep_ver}")
endif()
endif()
endforeach()
set(target_deps "${target_deps_seen}")
if (DEFINED qtdeps)
list(REMOVE_DUPLICATES qtdeps)
endif()
get_target_property(hasModuleHeaders "${target}" INTERFACE_MODULE_HAS_HEADERS)
if (${hasModuleHeaders})
qt_internal_write_depends_file("${target}" ${qtdeps})
endif()
if(third_party_deps OR main_module_tool_deps OR target_deps)
set(path_suffix "${INSTALL_CMAKE_NAMESPACE}${target}")
qt_path_join(config_build_dir ${QT_CONFIG_BUILD_DIR} ${path_suffix})
qt_path_join(config_install_dir ${QT_CONFIG_INSTALL_DIR} ${path_suffix})
# Configure and install ModuleDependencies file.
configure_file(
"${QT_CMAKE_DIR}/QtModuleDependencies.cmake.in"
"${config_build_dir}/${INSTALL_CMAKE_NAMESPACE}${target}Dependencies.cmake"
@ONLY
)
qt_install(FILES
"${config_build_dir}/${INSTALL_CMAKE_NAMESPACE}${target}Dependencies.cmake"
DESTINATION "${config_install_dir}"
COMPONENT Devel
)
endif()
if(tool_deps)
set(path_suffix "${INSTALL_CMAKE_NAMESPACE}${target}Tools")
qt_path_join(config_build_dir ${QT_CONFIG_BUILD_DIR} ${path_suffix})
qt_path_join(config_install_dir ${QT_CONFIG_INSTALL_DIR} ${path_suffix})
# Configure and install ModuleToolDependencies file.
configure_file(
"${QT_CMAKE_DIR}/QtModuleToolsDependencies.cmake.in"
"${config_build_dir}/${INSTALL_CMAKE_NAMESPACE}${target}ToolsDependencies.cmake"
@ONLY
)
qt_install(FILES
"${config_build_dir}/${INSTALL_CMAKE_NAMESPACE}${target}ToolsDependencies.cmake"
DESTINATION "${config_install_dir}"
COMPONENT Devel
)
endif()
endfunction()
function(qt_internal_create_plugin_depends_file target)
get_target_property(qt_module "${target}" QT_MODULE)
get_target_property(depends "${target}" LINK_LIBRARIES)
get_target_property(public_depends "${target}" INTERFACE_LINK_LIBRARIES)
get_target_property(target_deps "${target}" _qt_target_deps)
set(target_deps_seen "")
qt_collect_third_party_deps()
# Dirty hack because https://gitlab.kitware.com/cmake/cmake/issues/19200
foreach(dep ${target_deps})
if(dep)
list(FIND target_deps_seen "${dep}" dep_seen)
if(dep_seen EQUAL -1)
list(LENGTH dep len)
if(NOT (len EQUAL 2))
message(FATAL_ERROR "List '${dep}' should look like QtFoo;version")
endif()
list(GET dep 0 dep_name)
list(GET dep 1 dep_ver)
list(APPEND target_deps_seen "${dep_name}\;${dep_ver}")
endif()
endif()
endforeach()
set(target_deps "${target_deps_seen}")
if(third_party_deps OR target_deps)
# Setup build and install paths
if(qt_module)
set(path_suffix "${INSTALL_CMAKE_NAMESPACE}${qt_module}")
else()
set(path_suffix "${INSTALL_CMAKE_NAMESPACE}${target}")
endif()
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
qt_path_join(config_build_dir ${QT_CONFIG_BUILD_DIR} ${path_suffix})
qt_path_join(config_install_dir ${QT_CONFIG_INSTALL_DIR} ${path_suffix})
Implement developer / non-prefix builds A non-prefix build is a build where you don't have to run make install. To do a non-prefix build, pass -DFEATURE_developer_build=ON when invoking CMake on qtbase. Note that this of course also enables developer build features (private tests, etc). When doing a non-prefix build, the CMAKE_INSTALL_PREFIX cache variable will point to the qtbase build directory. Tests can be run without installing Qt (QPA plugins are picked up from the build dir). This patch stops installation of any files by forcing the make "install" target be a no-op. When invoking cmake on the qtsvg module (or any other module), the CMAKE_INSTALL_PREFIX variable should be set to the qtbase build directory. The developer-build feature is propagated via the QtCore Config file, so that when building other modules, you don't have to specify it on the command line again. As a result of the change, all libraries, plugins, tools, include dirs, CMake Config files, CMake Targets files, Macro files, etc, will be placed in the qtbase build directory, mimicking the file layout of an installed Qt file layout. Only examples and tests are kept in the separate module build directories, which is equivalent to how qmake does it. The following global variables contain paths for the appropriate prefix or non prefix builds: QT_BUILD_DIR, QT_INSTALL_DIR, QT_CONFIG_BUILD_DIR, QT_CONFIG_INSTALL_DIR. These should be used by developers when deciding where files should be placed. All usages of install() are replaced by qt_install(), which has some additional logic on how to handle associationg of CMake targets to export names. When installing files, some consideration should be taken if qt_copy_or_install() needs to be used instead of qt_install(), which takes care of copying files from the source dir to the build dir when doing non-prefix builds. Tested with qtbase and qtsvg, developer builds, non-developer builds and static developer builds on Windows, Linux and macOS. Task-number: QTBUG-75581 Change-Id: I0ed27fb6467662dd24fb23aee6b95dd2c9c4061f Reviewed-by: Kevin Funk <kevin.funk@kdab.com> Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-08 12:45:41 +00:00
# Configure and install ModuleDependencies file.
configure_file(
"${QT_CMAKE_DIR}/QtPluginDependencies.cmake.in"
"${config_build_dir}/${target}Dependencies.cmake"
@ONLY
)
Implement developer / non-prefix builds A non-prefix build is a build where you don't have to run make install. To do a non-prefix build, pass -DFEATURE_developer_build=ON when invoking CMake on qtbase. Note that this of course also enables developer build features (private tests, etc). When doing a non-prefix build, the CMAKE_INSTALL_PREFIX cache variable will point to the qtbase build directory. Tests can be run without installing Qt (QPA plugins are picked up from the build dir). This patch stops installation of any files by forcing the make "install" target be a no-op. When invoking cmake on the qtsvg module (or any other module), the CMAKE_INSTALL_PREFIX variable should be set to the qtbase build directory. The developer-build feature is propagated via the QtCore Config file, so that when building other modules, you don't have to specify it on the command line again. As a result of the change, all libraries, plugins, tools, include dirs, CMake Config files, CMake Targets files, Macro files, etc, will be placed in the qtbase build directory, mimicking the file layout of an installed Qt file layout. Only examples and tests are kept in the separate module build directories, which is equivalent to how qmake does it. The following global variables contain paths for the appropriate prefix or non prefix builds: QT_BUILD_DIR, QT_INSTALL_DIR, QT_CONFIG_BUILD_DIR, QT_CONFIG_INSTALL_DIR. These should be used by developers when deciding where files should be placed. All usages of install() are replaced by qt_install(), which has some additional logic on how to handle associationg of CMake targets to export names. When installing files, some consideration should be taken if qt_copy_or_install() needs to be used instead of qt_install(), which takes care of copying files from the source dir to the build dir when doing non-prefix builds. Tested with qtbase and qtsvg, developer builds, non-developer builds and static developer builds on Windows, Linux and macOS. Task-number: QTBUG-75581 Change-Id: I0ed27fb6467662dd24fb23aee6b95dd2c9c4061f Reviewed-by: Kevin Funk <kevin.funk@kdab.com> Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-05-08 12:45:41 +00:00
qt_install(FILES
"${config_build_dir}/${target}Dependencies.cmake"
DESTINATION "${config_install_dir}"
COMPONENT Devel
)
endif()
endfunction()
# Create Depends.cmake & Depends.h files for all modules and plug-ins.
function(qt_internal_create_depends_files)
qt_internal_get_qt_repo_known_modules(repo_known_modules)
message("Generating ModuleDepends files and CMake ModuleDependencies files for ${repo_known_modules}...")
foreach (target ${repo_known_modules})
qt_internal_create_module_depends_file(${target})
endforeach()
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
message("Generating CMake PluginDependencies files for ${QT_KNOWN_PLUGINS}...")
foreach (target ${QT_KNOWN_PLUGINS})
qt_internal_create_plugin_depends_file(${target})
endforeach()
endfunction()
Write find_dependency() calls in Qt Module config files This change introduces a new function called qt_find_package() which can take an extra option called PROVIDED_TARGETS, which associates targets with the package that defines those targets. This is done by setting the INTERFACE_QT_PACKAGE_NAME and INTERFACE_QT_PACKAGE_VERSION properties on the imported targets. This information allows us to generate appropriate find_dependency() calls in a module's Config file for third party libraries. For example when an application links against QtCore, it should also link against zlib and atomic libraries. In order to do that, the library locations first have to be found by CMake. This is achieved by embedding find_dependency(ZLIB) and find_dependency(Atomic) in Qt5CoreDependencies.cmake which is included by Qt5CoreConfig.cmake. The latter is picked up when an application project contains find_package(Qt5Core), and thus all linking dependencies are resolved. The information 'which package provides which targets' is contained in the python json2cmake conversion script. The generated output of the script contains qt_find_package() calls that represent that information. The Qt5CoreDependencies.cmake file and which which dependencies it contains is generated at the QtPostProcess stop. Note that for non-static Qt builds, we only need to propagate public 3rd party libraries. For static builds, we need all third party libraries. In order for the INTERFACE_QT_PACKAGE_NAME property to be read in any scope, the targets on which the property is set, have to be GLOBAL. Also for applications and other modules to find all required third party libraries, we have to install all our custom Find modules, and make sure they define INTERFACE IMPORTED libraries, and not just IMPORTED libraries. Change-Id: I694d6e32d05b96d5e241df0156fc79d0029426aa Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
2019-04-24 15:14:25 +00:00
# This function creates the Qt<Module>Plugins.cmake used to list all
# the plug-in target files.
function(qt_internal_create_plugins_files)
qt_internal_get_qt_repo_known_modules(repo_known_modules)
message("Generating Plugins files for ${repo_known_modules}...")
foreach (QT_MODULE ${repo_known_modules})
get_target_property(target_type "${QT_MODULE}" TYPE)
if(target_type STREQUAL "INTERFACE_LIBRARY")
# No plugins are provided by a header only module.
continue()
endif()
qt_path_join(config_build_dir ${QT_CONFIG_BUILD_DIR} ${INSTALL_CMAKE_NAMESPACE}${QT_MODULE})
qt_path_join(config_install_dir ${QT_CONFIG_INSTALL_DIR} ${INSTALL_CMAKE_NAMESPACE}${QT_MODULE})
set(QT_MODULE_PLUGIN_INCLUDES "")
get_target_property(qt_plugins "${QT_MODULE}" QT_PLUGINS)
if(qt_plugins)
foreach (pluginTarget ${qt_plugins})
set(QT_MODULE_PLUGIN_INCLUDES "${QT_MODULE_PLUGIN_INCLUDES}include(\"\${CMAKE_CURRENT_LIST_DIR}/${pluginTarget}Config.cmake\")\n")
endforeach()
configure_file(
"${QT_CMAKE_DIR}/QtPlugins.cmake.in"
"${config_build_dir}/${INSTALL_CMAKE_NAMESPACE}${QT_MODULE}Plugins.cmake"
@ONLY
)
qt_install(FILES
"${config_build_dir}/${INSTALL_CMAKE_NAMESPACE}${QT_MODULE}Plugins.cmake"
DESTINATION "${config_install_dir}"
COMPONENT Devel
)
endif()
endforeach()
endfunction()
function(qt_generate_build_internals_extra_cmake_code)
if(PROJECT_NAME STREQUAL "QtBase")
set(QT_EXTRA_BUILD_INTERNALS_VARS)
foreach(var IN LISTS qt_base_configure_tests_vars_to_export)
string(APPEND QT_EXTRA_BUILD_INTERNALS_VARS "set(${var} \"${${var}}\" CACHE INTERNAL \"\")\n")
endforeach()
Ugly fix for handling QT_SOURCE_TREE QT_SOURCE_TREE is a variable that is set in qtbase/.qmake.conf. In qtbase, it's used throughout various projects to find cpp sources when building standalone tests (among other things). Everything works fine with qmake, because even if qmake is invoked on the tests subfolder, qmake searches up the source directory tree until it finds a .qmake.conf file, and uses that. When building qttools with qmake, the qdoc project expects to have a QT_SOURCE_TREE value, but it's not actually set in the qttools/.qmake.conf file, so the generated include paths that use that value are incorrect. Curiously the build still succeeds. Now in CMake land we replaced QT_SOURCE_TREE with CMAKE_SOURCE_DIR, but that does not work properly when doing a standalone tests build, because the project in that case is the tests one, and not the qtbase one, so configuration fails in a developer build when trying to configure some private tests. So far I've found that only qtbase actively uses this value. A temporary fix is to save the qtbase source directory into a QT_SOURCE_TREE variable inside the generated BuildInternalsExtra.cmake file. The pro2cmake script is changed to handle presence of QT_SOURCE_TREE in a qrc file path. This is handled by finding the location of a .qmake.conf file starting from the project file absolute path. This is needed to stop the script from crashing when handling the mimedatabase test projects for example. The change also regenerates the relevant failing test projects, and thus standalone tests (when doing developer builds aka private_tests enabled) now configure and build successfully. Change-Id: I15adc6f4ab6e3056c43ed850196204e2229c4d98 Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-07-26 16:59:53 +00:00
set(QT_SOURCE_TREE "${QtBase_SOURCE_DIR}")
qt_path_join(extra_file_path
${QT_CONFIG_BUILD_DIR}
${INSTALL_CMAKE_NAMESPACE}BuildInternals/QtBuildInternalsExtra.cmake)
configure_file(
"${CMAKE_CURRENT_LIST_DIR}/QtBuildInternalsExtra.cmake.in"
"${extra_file_path}"
@ONLY
)
endif()
endfunction()
# For every Qt module check if there any android dependencies that require
# processing.
function(qt_modules_process_android_dependencies)
qt_internal_get_qt_repo_known_modules(repo_known_modules)
foreach (target ${repo_known_modules})
qt_android_dependencies(${target})
endforeach()
endfunction()
qt_internal_create_depends_files()
qt_generate_build_internals_extra_cmake_code()
qt_internal_create_plugins_files()
if (ANDROID)
qt_modules_process_android_dependencies()
endif()