fish-shell/cmake/Rust.cmake
2023-09-05 11:38:59 +02:00

92 lines
3.0 KiB
CMake

if(EXISTS "${CMAKE_SOURCE_DIR}/corrosion-vendor/")
add_subdirectory("${CMAKE_SOURCE_DIR}/corrosion-vendor/")
else()
include(FetchContent)
# Don't let Corrosion's tests interfere with ours.
set(CORROSION_TESTS OFF CACHE BOOL "" FORCE)
FetchContent_Declare(
Corrosion
GIT_REPOSITORY https://github.com/mqudsi/corrosion
GIT_TAG fish
)
FetchContent_MakeAvailable(Corrosion)
add_custom_target(corrosion-vendor.tar.gz
COMMAND git archive --format tar.gz --output "${CMAKE_BINARY_DIR}/corrosion-vendor.tar.gz"
--prefix corrosion-vendor/ HEAD
WORKING_DIRECTORY ${corrosion_SOURCE_DIR}
)
endif()
set(fish_rust_target "fish-rust")
set(fish_autocxx_gen_dir "${CMAKE_BINARY_DIR}/fish-autocxx-gen/")
set(FISH_CRATE_FEATURES "fish-ffi-tests")
if(NOT DEFINED CARGO_FLAGS)
# Corrosion doesn't like an empty string as FLAGS. This is basically a no-op alternative.
# See https://github.com/corrosion-rs/corrosion/issues/356
set(CARGO_FLAGS "--config" "foo=0")
endif()
if(DEFINED ASAN)
list(APPEND CARGO_FLAGS "-Z" "build-std")
list(APPEND FISH_CRATE_FEATURES "asan")
endif()
corrosion_import_crate(
MANIFEST_PATH "${CMAKE_SOURCE_DIR}/Cargo.toml"
CRATES "fish-rust"
FEATURES "${FISH_CRATE_FEATURES}"
FLAGS "${CARGO_FLAGS}"
)
# We need the build dir because cxx puts our headers in there.
# Corrosion doesn't expose the build dir, so poke where we shouldn't.
if (Rust_CARGO_TARGET)
set(rust_target_dir "${CMAKE_BINARY_DIR}/cargo/build/${_CORROSION_RUST_CARGO_TARGET}")
else()
set(rust_target_dir "${CMAKE_BINARY_DIR}/cargo/build/${_CORROSION_RUST_CARGO_HOST_TARGET}")
corrosion_set_hostbuild(${fish_rust_target})
endif()
# Temporary hack to propogate CMake flags/options to build.rs. We need to get CMake to evaluate the
# truthiness of the strings if they are set.
set(CMAKE_WITH_GETTEXT "1")
if(DEFINED WITH_GETTEXT AND NOT "${WITH_GETTEXT}")
set(CMAKE_WITH_GETTEXT "0")
endif()
# Tell Cargo where our build directory is so it can find config.h.
corrosion_set_env_vars(${fish_rust_target}
"FISH_BUILD_DIR=${CMAKE_BINARY_DIR}"
"FISH_AUTOCXX_GEN_DIR=${fish_autocxx_gen_dir}"
"FISH_RUST_TARGET_DIR=${rust_target_dir}"
"PREFIX=${CMAKE_INSTALL_PREFIX}"
# Temporary hack to propogate CMake flags/options to build.rs.
"CMAKE_WITH_GETTEXT=${CMAKE_WITH_GETTEXT}"
"DOCDIR=${DOCDIR}"
"DATADIR=${DATADIR}"
"SYSCONFDIR=${SYSCONFDIR}"
"BINDIR=${BINDIR}"
)
# this needs an extra fish-rust due to the poor source placement
target_include_directories(${fish_rust_target} INTERFACE
"${rust_target_dir}/cxxbridge/${fish_rust_target}/fish-rust/src/"
"${fish_autocxx_gen_dir}/include/"
)
# Tell fish what extra C++ files to compile.
define_property(
TARGET PROPERTY fish_extra_cpp_files
BRIEF_DOCS "Extra C++ files to compile for fish."
FULL_DOCS "Extra C++ files to compile for fish."
)
set_property(TARGET ${fish_rust_target} PROPERTY fish_extra_cpp_files
"${fish_autocxx_gen_dir}/cxx/gen0.cxx"
)