fuel-scm/ext/qtkeychain/cmake/Modules/ECMGeneratePriFile.cmake
2021-05-30 14:01:05 +02:00

200 lines
8.3 KiB
CMake

#.rst:
# ECMGeneratePriFile
# ------------------
#
# Generate a ``.pri`` file for the benefit of qmake-based projects.
#
# As well as the function below, this module creates the cache variable
# ``ECM_MKSPECS_INSTALL_DIR`` and sets the default value to ``mkspecs/modules``.
# This assumes Qt and the current project are both installed to the same
# non-system prefix. Packagers who use ``-DCMAKE_INSTALL_PREFIX=/usr`` will
# certainly want to set ``ECM_MKSPECS_INSTALL_DIR`` to something like
# ``share/qt5/mkspecs/modules``.
#
# The main thing is that this should be the ``modules`` subdirectory of either
# the default qmake ``mkspecs`` directory or of a directory that will be in the
# ``$QMAKEPATH`` environment variable when qmake is run.
#
# ::
#
# ecm_generate_pri_file(BASE_NAME <baseName>
# LIB_NAME <libName>
# [DEPS "<dep> [<dep> [...]]"]
# [FILENAME_VAR <filename_variable>]
# [INCLUDE_INSTALL_DIR <dir>]
# [LIB_INSTALL_DIR <dir>])
#
# If your CMake project produces a Qt-based library, you may expect there to be
# applications that wish to use it that use a qmake-based build system, rather
# than a CMake-based one. Creating a ``.pri`` file will make use of your
# library convenient for them, in much the same way that CMake config files make
# things convenient for CMake-based applications.
#
# ecm_generate_pri_file() generates just such a file. It requires the
# ``PROJECT_VERSION_STRING`` variable to be set. This is typically set by
# :module:`ECMSetupVersion`, although the project() command in CMake 3.0.0 and
# later can also set this.
#
# BASE_NAME specifies the name qmake project (.pro) files should use to refer to
# the library (eg: KArchive). LIB_NAME is the name of the actual library to
# link to (ie: the first argument to add_library()). DEPS is a space-separated
# list of the base names of other libraries (for Qt libraries, use the same
# names you use with the ``QT`` variable in a qmake project file, such as "core"
# for QtCore). FILENAME_VAR specifies the name of a variable to store the path
# to the generated file in.
#
# INCLUDE_INSTALL_DIR is the path (relative to ``CMAKE_INSTALL_PREFIX``) that
# include files will be installed to. It defaults to
# ``${INCLUDE_INSTALL_DIR}/<baseName>`` if the ``INCLUDE_INSTALL_DIR`` variable
# is set. If that variable is not set, the ``CMAKE_INSTALL_INCLUDEDIR`` variable
# is used instead, and if neither are set ``include`` is used. LIB_INSTALL_DIR
# operates similarly for the installation location for libraries; it defaults to
# ``${LIB_INSTALL_DIR}``, ``${CMAKE_INSTALL_LIBDIR}`` or ``lib``, in that order.
#
# Example usage:
#
# .. code-block:: cmake
#
# ecm_generate_pri_file(
# BASE_NAME KArchive
# LIB_NAME KF5KArchive
# DEPS "core"
# FILENAME_VAR pri_filename
# )
# install(FILES ${pri_filename} DESTINATION ${ECM_MKSPECS_INSTALL_DIR})
#
# A qmake-based project that wished to use this would then do::
#
# QT += KArchive
#
# in their ``.pro`` file.
#
# Since pre-1.0.0.
#=============================================================================
# SPDX-FileCopyrightText: 2014 David Faure <faure@kde.org>
#
# SPDX-License-Identifier: BSD-3-Clause
# Replicate the logic from KDEInstallDirs.cmake as we can't depend on it
# Ask qmake if we're using the same prefix as Qt
set(_askqmake OFF)
if(NOT DEFINED KDE_INSTALL_USE_QT_SYS_PATHS)
include(ECMQueryQmake)
query_qmake(qt_install_prefix_dir QT_INSTALL_PREFIX TRY)
if(qt_install_prefix_dir STREQUAL "${CMAKE_INSTALL_PREFIX}")
set(_askqmake ON)
endif()
endif()
if(KDE_INSTALL_USE_QT_SYS_PATHS OR _askqmake)
include(ECMQueryQmake)
query_qmake(qt_host_data_dir QT_HOST_DATA)
set(ECM_MKSPECS_INSTALL_DIR ${qt_host_data_dir}/mkspecs/modules CACHE PATH "The directory where mkspecs will be installed to.")
else()
set(ECM_MKSPECS_INSTALL_DIR mkspecs/modules CACHE PATH "The directory where mkspecs will be installed to.")
endif()
function(ECM_GENERATE_PRI_FILE)
set(options )
set(oneValueArgs BASE_NAME LIB_NAME DEPS FILENAME_VAR INCLUDE_INSTALL_DIR LIB_INSTALL_DIR)
set(multiValueArgs )
cmake_parse_arguments(EGPF "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if(EGPF_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Unknown keywords given to ECM_GENERATE_PRI_FILE(): \"${EGPF_UNPARSED_ARGUMENTS}\"")
endif()
if(NOT EGPF_BASE_NAME)
message(FATAL_ERROR "Required argument BASE_NAME missing in ECM_GENERATE_PRI_FILE() call")
endif()
if(NOT EGPF_LIB_NAME)
message(FATAL_ERROR "Required argument LIB_NAME missing in ECM_GENERATE_PRI_FILE() call")
endif()
if(NOT PROJECT_VERSION_STRING)
message(FATAL_ERROR "Required variable PROJECT_VERSION_STRING not set before ECM_GENERATE_PRI_FILE() call. Did you call ecm_setup_version?")
endif()
if(NOT EGPF_INCLUDE_INSTALL_DIR)
if(INCLUDE_INSTALL_DIR)
set(EGPF_INCLUDE_INSTALL_DIR "${INCLUDE_INSTALL_DIR}/${EGPF_BASE_NAME}")
elseif(CMAKE_INSTALL_INCLUDEDIR)
set(EGPF_INCLUDE_INSTALL_DIR "${CMAKE_INSTALL_INCLUDEDIR}/${EGPF_BASE_NAME}")
else()
set(EGPF_INCLUDE_INSTALL_DIR "include/${EGPF_BASE_NAME}")
endif()
endif()
if(NOT EGPF_LIB_INSTALL_DIR)
if(LIB_INSTALL_DIR)
set(EGPF_LIB_INSTALL_DIR "${LIB_INSTALL_DIR}")
elseif(CMAKE_INSTALL_LIBDIR)
set(EGPF_LIB_INSTALL_DIR "${CMAKE_INSTALL_LIBDIR}")
else()
set(EGPF_LIB_INSTALL_DIR "lib")
endif()
endif()
string(REGEX REPLACE "^([0-9]+)\\.[0-9]+\\.[0-9]+.*" "\\1" PROJECT_VERSION_MAJOR "${PROJECT_VERSION_STRING}")
string(REGEX REPLACE "^[0-9]+\\.([0-9]+)\\.[0-9]+.*" "\\1" PROJECT_VERSION_MINOR "${PROJECT_VERSION_STRING}")
string(REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1" PROJECT_VERSION_PATCH "${PROJECT_VERSION_STRING}")
# Prepare the right number of "../.." to go from ECM_MKSPECS_INSTALL_DIR to the install prefix
# This allows to make the generated pri files relocatable (no absolute paths)
if (IS_ABSOLUTE ${ECM_MKSPECS_INSTALL_DIR})
set(BASEPATH ${CMAKE_INSTALL_PREFIX})
else()
string(REGEX REPLACE "[^/]+" ".." PRI_ROOT_RELATIVE_TO_MKSPECS ${ECM_MKSPECS_INSTALL_DIR})
set(BASEPATH "$$PWD/${PRI_ROOT_RELATIVE_TO_MKSPECS}")
endif()
set(PRI_TARGET_BASENAME ${EGPF_BASE_NAME})
set(PRI_TARGET_LIBNAME ${EGPF_LIB_NAME})
set(PRI_TARGET_QTDEPS ${EGPF_DEPS})
if(IS_ABSOLUTE "${EGPF_INCLUDE_INSTALL_DIR}")
set(PRI_TARGET_INCLUDES "${EGPF_INCLUDE_INSTALL_DIR}")
else()
set(PRI_TARGET_INCLUDES "${BASEPATH}/${EGPF_INCLUDE_INSTALL_DIR}")
endif()
if(IS_ABSOLUTE "${EGPF_LIB_INSTALL_DIR}")
set(PRI_TARGET_LIBS "${EGPF_LIB_INSTALL_DIR}")
else()
set(PRI_TARGET_LIBS "${BASEPATH}/${EGPF_LIB_INSTALL_DIR}")
endif()
set(PRI_TARGET_DEFINES "")
set(PRI_FILENAME ${CMAKE_CURRENT_BINARY_DIR}/qt_${PRI_TARGET_BASENAME}.pri)
if (EGPF_FILENAME_VAR)
set(${EGPF_FILENAME_VAR} ${PRI_FILENAME} PARENT_SCOPE)
endif()
set(PRI_TARGET_MODULE_CONFIG "")
# backward compat: it was not obvious LIB_NAME needs to be a target name,
# and some projects where the target name was not the actual library output name
# passed the output name for LIB_NAME, so .name & .module prperties are correctly set.
# TODO: improve API dox, allow control over module name if target name != output name
if(TARGET ${EGPF_LIB_NAME})
get_target_property(target_type ${EGPF_LIB_NAME} TYPE)
if (target_type STREQUAL "STATIC_LIBRARY")
set(PRI_TARGET_MODULE_CONFIG "staticlib")
endif()
endif()
file(GENERATE
OUTPUT ${PRI_FILENAME}
CONTENT
"QT.${PRI_TARGET_BASENAME}.VERSION = ${PROJECT_VERSION_STRING}
QT.${PRI_TARGET_BASENAME}.MAJOR_VERSION = ${PROJECT_VERSION_MAJOR}
QT.${PRI_TARGET_BASENAME}.MINOR_VERSION = ${PROJECT_VERSION_MINOR}
QT.${PRI_TARGET_BASENAME}.PATCH_VERSION = ${PROJECT_VERSION_PATCH}
QT.${PRI_TARGET_BASENAME}.name = ${PRI_TARGET_LIBNAME}
QT.${PRI_TARGET_BASENAME}.module = ${PRI_TARGET_LIBNAME}
QT.${PRI_TARGET_BASENAME}.defines = ${PRI_TARGET_DEFINES}
QT.${PRI_TARGET_BASENAME}.includes = ${PRI_TARGET_INCLUDES}
QT.${PRI_TARGET_BASENAME}.private_includes =
QT.${PRI_TARGET_BASENAME}.libs = ${PRI_TARGET_LIBS}
QT.${PRI_TARGET_BASENAME}.depends = ${PRI_TARGET_QTDEPS}
QT.${PRI_TARGET_BASENAME}.module_config = ${PRI_TARGET_MODULE_CONFIG}
"
)
endfunction()