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cmake_minimum_required(VERSION 3.15)
project(Corrosion
# Official releases will be major.minor.patch. When the `tweak` field is
# set it indicates that we are on a commit, that is not a officially
# tagged release. Users don't need to care about this, it is mainly to
# clearly see in configure logs which version was used, without needing to
# rely on `git`, since Corrosion may be installed or otherwise packaged.
VERSION 0.5.2
LANGUAGES NONE
HOMEPAGE_URL "https://corrosion-rs.github.io/corrosion/"
)
# Default behavior:
# - If the project is being used as a subdirectory, then don't build tests and
# don't enable any languages.
# - If this is a top level project, then build tests and enable the C++ compiler
if (NOT CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
set(_CORROSION_TOP_LEVEL OFF)
else()
set(_CORROSION_TOP_LEVEL ON)
endif()
# ==== Corrosion Configuration ====
option(
CORROSION_DEV_MODE
"Enables some additional features if you're developing Corrosion"
${_CORROSION_TOP_LEVEL}
)
option(
CORROSION_BUILD_TESTS
"Build Corrosion test project"
${_CORROSION_TOP_LEVEL}
)
set(
CORROSION_GENERATOR_EXECUTABLE CACHE STRING
"Use prebuilt, non-bootstrapped corrosion-generator")
mark_as_advanced(CORROSION_GENERATOR_EXECUTABLE)
if (CORROSION_GENERATOR_EXECUTABLE)
add_executable(Corrosion::Generator IMPORTED GLOBAL)
set_property(
TARGET Corrosion::Generator
PROPERTY IMPORTED_LOCATION ${CORROSION_GENERATOR_EXECUTABLE})
set(CORROSION_INSTALL_EXECUTABLE_DEFAULT OFF)
elseif(CORROSION_NATIVE_TOOLING OR CMAKE_VERSION VERSION_LESS 3.19.0)
set(CORROSION_INSTALL_EXECUTABLE_DEFAULT "ON")
else()
set(CORROSION_INSTALL_EXECUTABLE_DEFAULT OFF)
endif()
option(
CORROSION_INSTALL_EXECUTABLE
"Controls whether corrosion-generator is installed with the package"
${CORROSION_INSTALL_EXECUTABLE_DEFAULT}
)
mark_as_advanced(CORROSION_INSTALL_EXECUTABLE)
if (_CORROSION_TOP_LEVEL)
# We need to enable a language for corrosions test to work.
# For projects using corrosion this is not needed
enable_language(C)
endif()
# This little bit self-hosts the Corrosion toolchain to build the generator
# tool.
#
# It is strongly encouraged to install Corrosion separately and use
# `find_package(Corrosion REQUIRED)` instead if that works with your workflow.
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
include(Corrosion)
# Testing
if (CORROSION_BUILD_TESTS)
include(CTest)
add_subdirectory(test)
endif()
# If Corrosion is a subdirectory, do not enable its install code
if (NOT _CORROSION_TOP_LEVEL)
return()
endif()
# Installation
include(GNUInstallDirs)
if(CORROSION_INSTALL_EXECUTABLE)
get_property(
_CORROSION_GENERATOR_EXE
TARGET Corrosion::Generator PROPERTY IMPORTED_LOCATION
)
install(PROGRAMS "${_CORROSION_GENERATOR_EXE}" DESTINATION "${CMAKE_INSTALL_FULL_LIBEXECDIR}")
else()
message(DEBUG "Not installing corrosion-generator since "
"`CORROSION_INSTALL_EXECUTABLE` is set to ${CORROSION_INSTALL_EXECUTABLE}"
)
endif()
# Generate the Config file
include(CMakePackageConfigHelpers)
configure_package_config_file(
cmake/CorrosionConfig.cmake.in CorrosionConfig.cmake
INSTALL_DESTINATION
"${CMAKE_INSTALL_FULL_LIBDIR}/cmake/Corrosion"
)
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/CorrosionConfigVersion.cmake"
VERSION ${PROJECT_VERSION}
COMPATIBILITY
SameMinorVersion # TODO: Should be SameMajorVersion when 1.0 is released
ARCH_INDEPENDENT
)
install(
FILES
"${CMAKE_CURRENT_BINARY_DIR}/CorrosionConfig.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/CorrosionConfigVersion.cmake"
DESTINATION
"${CMAKE_INSTALL_FULL_LIBDIR}/cmake/Corrosion"
)
# These CMake scripts are needed both for the install and as a subdirectory
install(
FILES
cmake/Corrosion.cmake
cmake/CorrosionGenerator.cmake
cmake/FindRust.cmake
DESTINATION
"${CMAKE_INSTALL_FULL_DATADIR}/cmake"
)
|
