calamares/CMakeLists.txt

# === This file is part of Calamares - <https://github.com/calamares> ===
#
#   SPDX-FileCopyrightText: 2017 Adriaan de Groot <groot@kde.org>
#   SPDX-License-Identifier: BSD-2-Clause
#
###
#
#   Calamares is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   Calamares is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
#
#   Individual files may have different licenses (like the CMake
#   infrastructure, which is BSD-2-Clause licensed). Check the SPDX
#   identifiers in each file.
#
###
#
# Generally, this CMakeLists.txt will find all the dependencies for Calamares
# and complain appropriately. See below (later in this file) for CMake-level
# options. There are some "secret" options as well:
#
#   SKIP_MODULES    : a space or semicolon-separated list of directory names
#                     under src/modules that should not be built.
#   USE_<foo>       : fills in SKIP_MODULES for modules called <foo>-<something>
#   WITH_<foo>      : try to enable <foo> (these usually default to ON). For
#                     a list of WITH_<foo> grep CMakeCache.txt after running
#                     CMake once. These affect the ABI offered by Calamares.
#                       - PYTHON (enable Python Job modules)
#                       - QML (enable QML UI View modules)
#                       - PYTHONQT # TODO:3.3: remove
#   BUILD_<foo>     : choose additional things to build
#                       - TESTING (standard CMake option)
#                       - SCHEMA_TESTING (requires Python, see ci/configvalidator.py)
#   DEBUG_<foo>     : special developer flags for debugging
#
# Example usage:
#
#   cmake . -DSKIP_MODULES="partition luksbootkeycfg"
#
# One special target is "show-version", which can be built
# to obtain the version number from here.

# TODO:3.3: Require CMake 3.12
cmake_minimum_required( VERSION 3.3 FATAL_ERROR )
project( CALAMARES
    VERSION 3.2.30
    LANGUAGES C CXX )

set( CALAMARES_VERSION_RC 1 )  # Set to 0 during release cycle, 1 during development

### OPTIONS
#
option( INSTALL_CONFIG "Install configuration files" OFF )
option( INSTALL_POLKIT "Install Polkit configuration" ON )
option( INSTALL_COMPLETION "Install shell completions" OFF )
# Options for the calamares executable
option( WITH_KF5Crash "Enable crash reporting with KCrash." ON )  # TODO:3.3: WITH->BUILD (this isn't an ABI thing)
option( WITH_KF5DBus "Use DBus service for unique-application." OFF )  # TODO:3.3: WITH->BUILD
# When adding WITH_* that affects the ABI offered by libcalamares,
# also update libcalamares/CalamaresConfig.h.in
option( WITH_PYTHON "Enable Python modules API (requires Boost.Python)." ON )
option( WITH_PYTHONQT "Enable Python view modules API (deprecated, requires PythonQt)." OFF )  # TODO:3.3: remove
option( WITH_QML "Enable QML UI options." ON )
#
# Additional parts to build
option( BUILD_SCHEMA_TESTING "Enable schema-validation-tests" ON )


# Possible debugging flags are:
#  - DEBUG_TIMEZONES draws latitude and longitude lines on the timezone
#    widget and enables chatty debug logging, for dealing with the timezone
#    location database.
#  - DEBUG_FILESYSTEMS does extra logging and checking when looking at
#    partition configuration. Lists known KPMCore FS types.
#  - DEBUG_PARTITION_UNSAFE (see partition/CMakeLists.txt)
#  - DEBUG_PARTITION_LAME (see partition/CMakeLists.txt)


### USE_*
#
# By convention, when there are multiple modules that implement similar
# functionality, and it only makes sense to have **at most one** of them
# enabled at any time, those modules are named <foo>-<implementation>.
# For example, services-systemd and services-openrc.
#
# Setting up SKIP_MODULES to ignore "the ones you don't want" can be
# annoying and error-prone (e.g. if a new module shows up). The USE_*
# modules provide a way to do automatic selection. To pick exactly
# one of the implementations from group <foo>, set USE_<foo> to the
# name of the implementation. If USE_<foo> is unset, or empty, then
# all the implementations are enabled (this just means they are
# **available** to `settings.conf`, not that they are used).
#
# To explicitly disable a set of modules, set USE_<foo>=none
# (e.g. the literal string none), which won't match any of the
# modules but is handled specially. This is the default for
# USE_os, which are modules for specialty non-Linux distributions.
#
# The following USE_* functionalities are available:
#  - *services* picks one of the two service-configuration modules,
#    for either systemd or openrc. This defaults to empty so that
#    **both** modules are available.
#  - *os* picks an OS-specific module for things-that-are-not-Linux.
#    It is generally discouraged to use this unless your distro is
#    completely unable to use standard Linux tools for configuration.
#    This defaults to *none* so that nothing gets picked up and nothing
#    is packaged -- you must explicitly set it to empty to get all of
#    the modules, but that hardly makes sense. Note, too that there
#    are currently no os-* modules shipped with Calamares.
set( USE_services "" CACHE STRING "Select the services module to use" )
set( USE_os "none" CACHE STRING "Select the OS-specific module to include" )

### Calamares application info
#
set( CALAMARES_ORGANIZATION_NAME "Calamares" )
set( CALAMARES_ORGANIZATION_DOMAIN "github.com/calamares" )
set( CALAMARES_APPLICATION_NAME  "Calamares" )
set( CALAMARES_DESCRIPTION_SUMMARY
    "The distribution-independent installer framework" )

### Transifex (languages) info
#
# complete = 100% translated,
# good = nearly complete (use own judgement, right now >= 75%)
# ok = incomplete (more than 25% untranslated, at least 5% translated),
# incomplete = <5% translated, placeholder in tx; these are not included.
#
# Language en (source language) is added later. It isn't listed in
# Transifex either. Get the list of languages and their status
# from https://transifex.com/calamares/calamares/ , or (preferably)
# use ci/txstats.py to automatically check.
#
# When adding a new language, take care that it is properly loaded
# by the translation framework. Languages with alternate scripts
# (sr@latin in particular) may need special handling in CalamaresUtils.cpp.
#
# TODO: drop the es_ES translation from Transifex
#
# NOTE: move eo (Esperanto) to _ok once Qt can actually create a
#       locale for it. (Qt 5.12.2 can, see Translation Status section).
# NOTE: move ie (Interlingue) to _ok once Qt supports it.
# NOTE: update these lines by running `txstats.py`, or for full automation
#       `txstats.py -e`. See also
#
# Total 68 languages
set( _tx_complete ca fi_FI he hr nl pt_BR sq tg tr_TR uk zh_TW )
set( _tx_good as ast az az_AZ be cs_CZ da de es fr hi hu it_IT ja
    ko lt ml pt_PT ru sk sv zh_CN )
set( _tx_ok ar bg el en_GB es_MX es_PR et eu fa gl id is mr nb
    pl ro sl sr sr@latin th )
set( _tx_incomplete bn ca@valencia eo fr_CH gu ie kk kn lo lv mk ne_NP
    ur uz )

### Required versions
#
# See DEPENDENCIES section below.
set( QT_VERSION 5.9.0 )
set( YAMLCPP_VERSION 0.5.1 )
set( ECM_VERSION 5.18 )
set( PYTHONLIBS_VERSION 3.3 )
set( BOOSTPYTHON_VERSION 1.55.0 )


### CMAKE SETUP
#
set( CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/CMakeModules" )

# Enable IN_LIST
if( POLICY CMP0057 )
    cmake_policy( SET CMP0057 NEW )
endif()
# Let ``AUTOMOC`` and ``AUTOUIC`` process ``GENERATED`` files.
if( POLICY CMP0071 )
    cmake_policy( SET CMP0071 NEW )
endif()
# Recognize more macros to trigger automoc
if(NOT CMAKE_VERSION VERSION_LESS "3.10.0")
    list(APPEND CMAKE_AUTOMOC_MACRO_NAMES
        "K_PLUGIN_FACTORY_WITH_JSON"
        "K_EXPORT_PLASMA_DATAENGINE_WITH_JSON"
        "K_EXPORT_PLASMA_RUNNER"
    )
endif()

# CMake Modules
include( CMakePackageConfigHelpers )
include( CTest )
include( FeatureSummary )

# Calamares Modules
include( CMakeColors )

### C++ SETUP
#
set( CMAKE_CXX_STANDARD 14 )
set( CMAKE_CXX_STANDARD_REQUIRED ON )
set( CMAKE_C_STANDARD 99 )
set( CMAKE_C_STANDARD_REQUIRED ON )

set( CMAKE_C_FLAGS                  "${CMAKE_C_FLAGS} -Wall" )
if( CMAKE_CXX_COMPILER_ID MATCHES "Clang" )
    message( STATUS "Found Clang ${CMAKE_CXX_COMPILER_VERSION}, setting up Clang-specific compiler flags." )
    set( CMAKE_C_FLAGS                  "${CMAKE_C_FLAGS} -Wall" )
    set( CMAKE_C_FLAGS_DEBUG            "-g" )
    set( CMAKE_C_FLAGS_MINSIZEREL       "-Os -DNDEBUG" )
    set( CMAKE_C_FLAGS_RELEASE          "-O4 -DNDEBUG" )
    set( CMAKE_C_FLAGS_RELWITHDEBINFO   "-O2 -g" )

    # Clang warnings: doing *everything* is counter-productive, since it warns
    # about things which we can't fix (e.g. C++98 incompatibilities, but
    # Calamares is C++14).
    foreach( CLANG_WARNINGS
        -Weverything
        -Wno-c++98-compat
        -Wno-c++98-compat-pedantic
        -Wno-padded
        -Wno-undefined-reinterpret-cast
        -Wno-global-constructors
        -Wno-exit-time-destructors
        -Wno-missing-prototypes
        -Wno-documentation-unknown-command
        -Wno-unknown-warning-option
        -Werror=return-type
    )
        string( APPEND CMAKE_CXX_FLAGS " ${CLANG_WARNINGS}" )
    endforeach()
    set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DNOTREACHED='//' -DFALLTHRU='[[clang::fallthrough]]'")

    # Third-party code where we don't care so much about compiler warnings
    # (because it's uncomfortable to patch) get different flags; use
    #       mark_thirdparty_code( <file> [<file>...] )
    # to switch off warnings for those sources.
    set( SUPPRESS_3RDPARTY_WARNINGS "-Wno-everything" )
    set( SUPPRESS_BOOST_WARNINGS " -Wno-zero-as-null-pointer-constant -Wno-disabled-macro-expansion" )

    set( CMAKE_CXX_FLAGS_DEBUG          "-g ${CMAKE_CXX_FLAGS_DEBUG}" )
    set( CMAKE_CXX_FLAGS_MINSIZEREL     "-Os -DNDEBUG" )
    set( CMAKE_CXX_FLAGS_RELEASE        "-O3 -DNDEBUG" )
    set( CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O2 -g" )

    set( CMAKE_TOOLCHAIN_PREFIX "llvm-" )

    set( CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined" )

    # The path prefix is only relevant for CMake 3.16 and later, fixes #1286
    set( CMAKE_AUTOMOC_PATH_PREFIX OFF )
    set( CALAMARES_AUTOMOC_OPTIONS "-butils/moc-warnings.h" )
    set( CALAMARES_AUTOUIC_OPTIONS --include utils/moc-warnings.h )
else()
    set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wl,--no-undefined" )
    set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wl,--fatal-warnings -Wnon-virtual-dtor -Woverloaded-virtual -Werror=return-type" )

    set( SUPPRESS_3RDPARTY_WARNINGS "" )
    set( SUPPRESS_BOOST_WARNINGS "" )

    set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DNOTREACHED='__builtin_unreachable();' -DFALLTHRU='/* */'" )
endif()

# Use mark_thirdparty_code() to reduce warnings from the compiler
# on code that we're not going to fix. Call this with a list of files.
macro(mark_thirdparty_code)
    set_source_files_properties( ${ARGV}
        PROPERTIES
            COMPILE_FLAGS "${SUPPRESS_3RDPARTY_WARNINGS}"
            COMPILE_DEFINITIONS "THIRDPARTY"
    )
endmacro()

if( CMAKE_COMPILER_IS_GNUCXX )
    if( CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.9 OR
        CMAKE_CXX_COMPILER_VERSION VERSION_EQUAL 4.9 )
        message( STATUS "Found GNU g++ ${CMAKE_CXX_COMPILER_VERSION}, enabling colorized error messages." )
        set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fdiagnostics-color=auto" )
    endif()
endif()


### DEPENDENCIES
#
find_package( Qt5 ${QT_VERSION} CONFIG REQUIRED Concurrent Core Gui LinguistTools Network Svg Widgets )
if( WITH_QML )
    find_package( Qt5 ${QT_VERSION} CONFIG REQUIRED Quick QuickWidgets )
endif()
# Optional Qt parts
find_package( Qt5DBus CONFIG )

find_package( YAMLCPP ${YAMLCPP_VERSION} REQUIRED )
if( INSTALL_POLKIT )
    find_package( PolkitQt5-1 REQUIRED )
else()
    # Find it anyway, for dependencies-reporting
    find_package( PolkitQt5-1 )
endif()
set_package_properties(
    PolkitQt5-1 PROPERTIES
    DESCRIPTION "Qt5 support for Polkit"
    URL "https://cgit.kde.org/polkit-qt-1.git"
    PURPOSE "PolkitQt5-1 helps with installing Polkit configuration"
)

# Find ECM once, and add it to the module search path; Calamares
# modules that need ECM can do
#   find_package(ECM ${ECM_VERSION} REQUIRED NO_MODULE),
# no need to mess with the module path after.
find_package(ECM ${ECM_VERSION} NO_MODULE)
if( ECM_FOUND )
    set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_MODULE_PATH})
    if ( BUILD_TESTING )
        # ECM implies that we can build the tests, too
        find_package( Qt5 COMPONENTS Test REQUIRED )
        include( ECMAddTests )
    endif()
    include(KDEInstallDirs)
endif()

find_package( KF5 QUIET COMPONENTS CoreAddons Crash DBusAddons )
set_package_properties(
    KF5::CoreAddons PROPERTIES
    TYPE REQUIRED
    DESCRIPTION "Classes built on QtCore for About Data"
    URL "https://api.kde.org/frameworks/kcoreaddons/"
    PURPOSE "About Calamares"
)
if( NOT KF5Crash_FOUND )
    if( WITH_KF5Crash )
        message(WARNING "WITH_KF5Crash is set, but KF5::Crash is not available.")
    endif()
    set( WITH_KF5Crash OFF )
endif()
if( NOT KF5DBusAddons_FOUND )
    if( WITH_KF5DBus )
        message(WARNING "WITH_KF5DBus is set, but KF5::DBusAddons is not available.")
    endif()
    set( WITH_KF5DBus OFF )
endif()

# TODO:3.3: Use FindPython3 instead
find_package( PythonInterp ${PYTHONLIBS_VERSION} )
set_package_properties(
    PythonInterp PROPERTIES
    DESCRIPTION "Python 3 interpreter."
    URL "https://python.org"
    PURPOSE "Python 3 interpreter for certain tests."
)

set( _schema_explanation "" )
if ( PYTHONINTERP_FOUND )
    if ( BUILD_SCHEMA_TESTING )
        # The configuration validator script has some dependencies,
        # and if they are not installed, don't run. If errors out
        # with exit(1) on missing dependencies.
        if ( CALAMARES_CONFIGVALIDATOR_CHECKED )
            set( _validator_deps ${CALAMARES_CONFIGVALIDATOR_RESULT} )
        else()
            exec_program( ${PYTHON_EXECUTABLE} ARGS "${CMAKE_SOURCE_DIR}/ci/configvalidator.py" -x RETURN_VALUE _validator_deps )
            set( CALAMARES_CONFIGVALIDATOR_CHECKED TRUE CACHE INTERNAL "Dependencies for configvalidator checked" )
            set( CALAMARES_CONFIGVALIDATOR_RESULT ${_validator_deps} CACHE INTERNAL "Result of configvalidator dependency check" )
        endif()
        # It should never succeed, but only returns 1 when the imports fail
        if ( _validator_deps EQUAL 1 )
            set( _schema_explanation " Missing dependencies for configvalidator.py." )
            set( BUILD_SCHEMA_TESTING OFF )
        endif()
    endif()
else()
    # Can't run schema tests without Python3.
    set( _schema_explanation " Missing Python3." )
    set( BUILD_SCHEMA_TESTING OFF )
endif()
add_feature_info( yaml-schema BUILD_SCHEMA_TESTING "Validate YAML (config files) with schema.${_schema_explanation}" )

find_package( PythonLibs ${PYTHONLIBS_VERSION} )
set_package_properties(
    PythonLibs PROPERTIES
    DESCRIPTION "C interface libraries for the Python 3 interpreter."
    URL "https://python.org"
    PURPOSE "Python 3 is used for Python job modules."
)

if ( PYTHONLIBS_FOUND )
    # TODO:3.3: Require Boost + CMake; sort out Boost::Python
    # Since Boost provides CMake config files (starting with Boost 1.70.
    # or so) the mess that is the Calamares find code picks the wrong
    # bits. Suppress those CMake config files, as suggested by @jmrcpn
    set(Boost_NO_BOOST_CMAKE ON)
    include( BoostPython3 )
    find_boost_python3( ${BOOSTPYTHON_VERSION} ${PYTHONLIBS_VERSION_STRING} CALAMARES_BOOST_PYTHON3_FOUND )
    set_package_properties(
        Boost PROPERTIES
        PURPOSE "Boost.Python is used for Python job modules."
    )
    # TODO:3.3: Remove PythonQt support
    find_package( PythonQt )
    set_package_properties( PythonQt PROPERTIES
        DESCRIPTION "A Python embedding solution for Qt applications."
        URL "http://pythonqt.sourceforge.net"
        PURPOSE "PythonQt is used for Python view modules."
    )
endif()

if( NOT PYTHONLIBS_FOUND OR NOT CALAMARES_BOOST_PYTHON3_FOUND )
    message(STATUS "Disabling Boost::Python modules")
    set( WITH_PYTHON OFF )
endif()
if( NOT PYTHONLIBS_FOUND OR NOT PYTHONQT_FOUND )
    message(STATUS "Disabling PythonQt modules")
    set( WITH_PYTHONQT OFF )
endif()

# Now we know the state of the ABI-options, copy them into "Calamares_"
# prefixed variables, to match how the variables would-be-named
# when building out-of-tree.
set(Calamares_WITH_PYTHON ${WITH_PYTHON})
set(Calamares_WITH_PYTHONQT ${WITH_PYTHONQT})
set(Calamares_WITH_QML ${WITH_QML})

### Transifex Translation status
#
# Construct language lists for use.
#
if( Qt5_VERSION VERSION_GREATER 5.12.1 )
    # At least Qt 5.12.2 seems to support Esperanto in QLocale
    if( "eo" IN_LIST _tx_incomplete )
        message(STATUS "Esperanto support since Qt 5.12.2, enabling Esperanto locale")
        list( REMOVE_ITEM _tx_incomplete "eo" )
        list( APPEND _tx_ok "eo" )
    endif()
endif()

set( curr_tx ${_tx_complete} ${_tx_good} ${_tx_ok} ${_tx_incomplete} )
set( tx_errors OFF )
if ( curr_tx )
    # New in list
    foreach( l ${curr_tx} )
        set( p_l "lang/calamares_${l}.ts" )
        if( NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${p_l} )
            message(WARNING "Language ${l} has no .ts file yet.")
            set( tx_errors ON )
        endif()
    endforeach()

    unset( p_l )
    unset( l )
endif()
unset( curr_tx )
if( tx_errors )
    message( FATAL_ERROR "Translation warnings, see above." )
endif()

set( CALAMARES_TRANSLATION_LANGUAGES en ${_tx_complete} ${_tx_good} ${_tx_ok} )
list( SORT CALAMARES_TRANSLATION_LANGUAGES )

add_subdirectory( lang )  # i18n tools

### Example Distro
#
# For testing purposes Calamares includes a very, very, limited sample
# distro called "Generic". The root filesystem of "Generic" lives in
# data/example-root and can be squashed up as part of the build, so
# that a pure-upstream run of ./calamares -d from the build directory
# (with all the default settings and configurations) can actually
# do an complete example run.
#
# Some binaries from the build host (e.g. /bin and /lib) are also
# squashed into the example filesystem.
#
# To build the example distro (for use by the default, example,
# unsquashfs module), build the target 'example-distro', eg.:
#
#   make example-distro
#
find_program( mksquashfs_PROGRAM mksquashfs )
if( mksquashfs_PROGRAM )
    set( mksquashfs_FOUND ON )
    set( src_fs ${CMAKE_SOURCE_DIR}/data/example-root/ )
    set( dst_fs ${CMAKE_BINARY_DIR}/example.sqfs )
    if( EXISTS ${src_fs} )
        # based on the build host. If /lib64 exists, assume it is needed.
        # Collect directories needed for a minimal binary distro,
        # Note that the last path component is added to the root, so
        # if you add /usr/sbin here, it will be put into /sbin_1.
        # Add such paths to /etc/profile under ${src_fs}.
        set( candidate_fs /sbin /bin /lib /lib64 )
        set( host_fs "" )
        foreach( c_fs ${candidate_fs} )
            if( EXISTS ${c_fs} )
                list( APPEND host_fs ${c_fs} )
            endif()
        endforeach()
        add_custom_command(
            OUTPUT ${dst_fs}
            COMMAND ${mksquashfs_PROGRAM} ${src_fs} ${dst_fs} -all-root
            COMMAND ${mksquashfs_PROGRAM} ${host_fs} ${dst_fs} -all-root
        )
        add_custom_target(example-distro DEPENDS ${dst_fs})
    endif()
else()
    set( mksquashfs_FOUND OFF )
endif()
# Doesn't list mksquashfs as an optional dep, though, because it
# hasn't been sent through the find_package() scheme.
#
# "http://tldp.org/HOWTO/SquashFS-HOWTO/creatingandusing.html"
add_feature_info( ExampleDistro ${mksquashfs_FOUND} "Create example-distro target.")


### CALAMARES PROPER
#
set( CALAMARES_VERSION ${CALAMARES_VERSION_MAJOR}.${CALAMARES_VERSION_MINOR}.${CALAMARES_VERSION_PATCH} )
# In rare cases we have hotfix-releases with a tweak
if( CALAMARES_VERSION_TWEAK )
    set( CALAMARES_VERSION "${CALAMARES_VERSION}.${CALAMARES_VERSION_TWEAK}" )
endif()
set( CALAMARES_VERSION_SHORT "${CALAMARES_VERSION}" )
if( CALAMARES_VERSION_RC )
    set( CALAMARES_VERSION ${CALAMARES_VERSION}rc${CALAMARES_VERSION_RC} )
endif()

# Additional info for non-release builds. The "extended" version information
# with date and git information (commit, dirty status) is used only
# by CalamaresVersionX.h, which is included by consumers that need a full
# version number with all that information; normal consumers can include
# CalamaresVersion.h with more stable numbers.
if( NOT BUILD_RELEASE AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git/" )
    include( CMakeDateStamp )
    set( CALAMARES_VERSION_DATE "${CMAKE_DATESTAMP_YEAR}${CMAKE_DATESTAMP_MONTH}${CMAKE_DATESTAMP_DAY}" )
    if( CALAMARES_VERSION_DATE GREATER 0 )
        set( CALAMARES_VERSION ${CALAMARES_VERSION}.${CALAMARES_VERSION_DATE} )
    endif()

    include( CMakeVersionSource )
    if( CMAKE_VERSION_SOURCE )
        set( CALAMARES_VERSION ${CALAMARES_VERSION}-${CMAKE_VERSION_SOURCE} )
    endif()
endif()

# Special target for not-RC (e.g. might-be-release) builds.
# This is used by the release script to get the version.
if ( CALAMARES_VERSION_RC EQUAL 0 )
    add_custom_target(show-version
        ${CMAKE_COMMAND} -E echo CALAMARES_VERSION=${CALAMARES_VERSION_SHORT}
        USES_TERMINAL
    )
endif()

# enforce using constBegin, constEnd for const-iterators
add_definitions(
    -DQT_STRICT_ITERATORS
    -DQT_SHARED
    -DQT_SHAREDPOINTER_TRACK_POINTERS
)

# set paths
set( CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}" )
set( CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}" )
set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}" )

# Better default installation paths: GNUInstallDirs defines
# CMAKE_INSTALL_FULL_SYSCONFDIR to be CMAKE_INSTALL_PREFIX/etc by default
# but we really want /etc
if( NOT DEFINED CMAKE_INSTALL_SYSCONFDIR )
    set( CMAKE_INSTALL_SYSCONFDIR "/etc" )
endif()

# make predefined install dirs available everywhere
include( GNUInstallDirs )

# This is used by CalamaresAddLibrary; once Calamares is installed,
# the CalamaresConfig.cmake module sets this variable to the IMPORTED
# libraries for Calamares.
set( Calamares_LIBRARIES calamares )

add_subdirectory( src )

add_feature_info(Python ${WITH_PYTHON} "Python job modules")
add_feature_info(PythonQt ${WITH_PYTHONQT} "Python view modules")
add_feature_info(Config ${INSTALL_CONFIG} "Install Calamares configuration")
add_feature_info(KCrash ${WITH_KF5Crash} "Crash dumps via KCrash")
add_feature_info(KDBusAddons ${WITH_KF5DBus} "Unique-application via DBus")

### CMake infrastructure installation
#
#
set( CMAKE_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/Calamares" CACHE PATH  "Installation directory for CMake files" )
set( CMAKE_INSTALL_FULL_CMAKEDIR "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_CMAKEDIR}" )

export( PACKAGE Calamares )
configure_package_config_file(
    "CalamaresConfig.cmake.in"
    "${PROJECT_BINARY_DIR}/CalamaresConfig.cmake"
    INSTALL_DESTINATION "${CMAKE_INSTALL_CMAKEDIR}"
    PATH_VARS
        CMAKE_INSTALL_INCLUDEDIR
        CMAKE_INSTALL_LIBDIR
        CMAKE_INSTALL_DATADIR
)
write_basic_package_version_file(
    ${PROJECT_BINARY_DIR}/CalamaresConfigVersion.cmake
    VERSION ${PROJECT_VERSION}
    COMPATIBILITY SameMajorVersion
)
install(
    EXPORT Calamares
    DESTINATION "${CMAKE_INSTALL_CMAKEDIR}"
    FILE "CalamaresTargets.cmake"
    NAMESPACE Calamares::
)

# Install the cmake files
install(
    FILES
        "${PROJECT_BINARY_DIR}/CalamaresConfig.cmake"
        "${PROJECT_BINARY_DIR}/CalamaresConfigVersion.cmake"
        "CMakeModules/CalamaresAddBrandingSubdirectory.cmake"
        "CMakeModules/CalamaresAddLibrary.cmake"
        "CMakeModules/CalamaresAddModuleSubdirectory.cmake"
        "CMakeModules/CalamaresAddPlugin.cmake"
        "CMakeModules/CalamaresAddTest.cmake"
        "CMakeModules/CalamaresAddTranslations.cmake"
        "CMakeModules/CalamaresAutomoc.cmake"
        "CMakeModules/CMakeColors.cmake"
        "CMakeModules/FindYAMLCPP.cmake"
    DESTINATION
        "${CMAKE_INSTALL_CMAKEDIR}"
)

### Miscellaneous installs
#
#
if( INSTALL_CONFIG )
    install(
        FILES settings.conf
        DESTINATION share/calamares
    )
endif()

if( INSTALL_POLKIT )
    install(
        FILES com.github.calamares.calamares.policy
        DESTINATION "${POLKITQT-1_POLICY_FILES_INSTALL_DIR}"
    )
endif()

if ( INSTALL_COMPLETION )
    if( NOT CMAKE_INSTALL_BASHCOMPLETIONDIR )
        set( CMAKE_INSTALL_BASHCOMPLETIONDIR "${CMAKE_INSTALL_DATADIR}/bash-completion/completions" )
    endif()

    install( FILES ${CMAKE_SOURCE_DIR}/data/completion/bash/calamares DESTINATION "${CMAKE_INSTALL_BASHCOMPLETIONDIR}" )
endif()

install(
  FILES calamares.desktop
  DESTINATION ${CMAKE_INSTALL_DATADIR}/applications
)

install(
    FILES man/calamares.8
    DESTINATION ${CMAKE_INSTALL_MANDIR}/man8/
)

# uninstall target
configure_file(
    "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
    IMMEDIATE @ONLY
)

add_custom_target( uninstall
    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
)

### CMAKE SUMMARY REPORT
#
get_directory_property( SKIPPED_MODULES
    DIRECTORY src/modules
    DEFINITION LIST_SKIPPED_MODULES
)
calamares_explain_skipped_modules( ${SKIPPED_MODULES} )

feature_summary(
    WHAT DISABLED_FEATURES
    DESCRIPTION "The following features have been disabled:"
    QUIET_ON_EMPTY
)
feature_summary(
    WHAT OPTIONAL_PACKAGES_NOT_FOUND
    DESCRIPTION "The following OPTIONAL packages were not found:"
    QUIET_ON_EMPTY
)
feature_summary(
    WHAT REQUIRED_PACKAGES_NOT_FOUND
    FATAL_ON_MISSING_REQUIRED_PACKAGES
    DESCRIPTION "The following REQUIRED packages were not found:"
    QUIET_ON_EMPTY
)