# Template file for 'rust'
# partially adapted from Alpine/Adélie's Rust APKBUILD
pkgname=rust
version=1.36.0
revision=1
_rust_dist_version=1.36.0
_cargo_dist_version=0.37.0
# Always make sure custom distfiles used for bootstrap are
# uploaded to https://alpha.de.repo.voidlinux.org/distfiles/
wrksrc="rustc-${version}-src"
hostmakedepends="cmake curl pkg-config python3"
makedepends="libffi-devel ncurses-devel libxml2-devel zlib-devel llvm"
depends="rust-std"
short_desc="Safe, concurrent, practical systems language"
maintainer="Enno Boland <gottox@voidlinux.org>"
license="MIT, Apache-2.0"
homepage="https://www.rust-lang.org/"
distfiles="https://static.rust-lang.org/dist/rustc-${version}-src.tar.gz"
checksum=04c4e4d7213d036d6aaed392841496d272146312c0290f728b7400fccd15bb1b
lib32disabled=yes
patch_args="-Np1"

build_options="static_llvm"

_bootstrap_dir="stage0-bootstrap"

if [ "$CROSS_BUILD" ]; then
	hostmakedepends+=" cargo llvm"
	# These are required for building the buildhost's stage0/1
	hostmakedepends+=" libffi-devel libxml2-devel ncurses-devel zlib-devel"
else
	_bootstrap_url="https://static.rust-lang.org/dist"

	case "$XBPS_MACHINE" in
		x86_64*|i686|ppc64le|ppc) ;;
		ppc*) _bootstrap_url="https://alpha.de.repo.voidlinux.org/distfiles" ;;
		*) broken="unsupported host: ${XBPS_MACHINE}" ;;
	esac

	distfiles+="
	 ${_bootstrap_url}/rustc-${_rust_dist_version}-${RUST_BUILD}.tar.xz
	 ${_bootstrap_url}/rust-std-${_rust_dist_version}-${RUST_BUILD}.tar.xz
	 ${_bootstrap_url}/cargo-${_cargo_dist_version}-${RUST_BUILD}.tar.xz"

	# checksums must be specified per arch
	case "$XBPS_MACHINE" in
		i686)
			checksum+="
			 ad86a75cc8a02a0129df480ccb28082985215f4b5558a42881777691ae1d3ff3
			 a78f7bdbce0a960f3334c6c639cbe96f05b9b74df26cda9a5161834098119217
			 6835a73e2ce17e11eda5393133dd7c78bc41bae5a09784e5327648f14340fd48"
			;;
		x86_64)
			checksum+="
			 fff0158da6f5af2a89936dc3e0c361077c06c2983eb310615e02f81ebbde1416
			 ce8e12684b568a8a4f7d346a743383429849cf3f028f5712ad3d3e31590c8db3
			 d20fa121951339d5492cf8862f8a7af59efc99d18f3c27b95ab6d4658b6a7d67"
			;;
		x86_64-musl)
			checksum+="
			 04c15e34bdfd17136b924baa4f93cfbfe64739964b57f5a13ada8e91f9239076
			 70d0cc38cc829603c81812c59435ef85456a93962bea20deb12f0634e87fbaf7
			 53975d91e11569f2255d8e30176f05f6976cd810725197a527b0e7ad547ca70c"
			;;
		ppc64le)
			checksum+="
			 702818334ed9f01f60a433aa424784ec9b3785826cdaf03b0f69d03aded98df6
			 db7a9a06b8b1b84d6fe10bc1e2e136234e31bfaa77499b9df36e2d441ef1b856
			 4cda7686160f6981e936229703e8e2e756c74f390245f2ad9e356bbbed28a2c9"
			;;
		ppc64le-musl)
			checksum+="
			 e04239f9c0f230249412ca814f2f954e269c9724fe5741d87f6dc76ddaa15251
			 98e8b4e6335bdb8cd387c8681686e20d9aa230bcf16ba0ea7cf3c1818d964425
			 d2690135522db9fdc6efa2f432e5719b8b70abc94e91db278b84be834a75bf72"
			;;
		ppc64)
			checksum+="
			 4328cd52d37df39b78c6223a7a6d07129ef9861efa67dbdadbcfe6c991e0febf
			 800f27805adef749219f9507497dbadebdac2d5c50f951ca1426d4d447e7f318
			 8b2f7d5da611a21dd7e0b4238b9aca6ee32f1e49d8fe831435301f11a29b12de"
			;;
		ppc64-musl)
			checksum+="
			 7cef3f67652607e4f6ed09ff6eb54ee0a7485ae5491a2c015ef9357aadc40295
			 6f2dc455113a12b2f5fcefbda6e225ad568e750b8f900de5d326cf2c05e45ec9
			 131db0127366665b2ae55327155c171e99c2eddfb4bcdd7e5cd2663ada109bd5"
			;;
		ppc)
			checksum+="
			 6c47ae44afc4567fd5584ff8f23c6d0ee1680e66b2ce91cc891571e973097a99
			 b22c7104c1bea83aef920140a25be974c3e08dd600431901346908916be46f43
			 856fcb63f6ebeab67038fe3fc96ee0911353b1ee19cabcb0496c7d419de0d531"
			;;
		ppc-musl)
			checksum+="
			 181c81346bc75d6316d08efa242f49c3d3e70fa0c480e673c9bc7209c63ca6e6
			 4449b886359efe7fb39d75a086fc25520730f96932588e120abbf04387ac8aad
			 119dba3538f6c1d1164b720b238acac598e1924d943ebbdf3c7113ec3cbd8a2a"
			;;
	esac
fi

post_extract() {
	if [ -z "$CROSS_BUILD" ]; then
		mkdir -p "${wrksrc}/${_bootstrap_dir}"
		../rust-std-${_rust_dist_version}-${RUST_BUILD}/install.sh \
		 --destdir="${wrksrc}/${_bootstrap_dir}" --prefix=/ --disable-ldconfig
		../rustc-${_rust_dist_version}-${RUST_BUILD}/install.sh \
		 --destdir="${wrksrc}/${_bootstrap_dir}" --prefix=/ --disable-ldconfig
		# cargo may not be packaged like the rest
		cp ../cargo-${_cargo_dist_version}-${RUST_BUILD}/cargo/bin/cargo \
		 "${wrksrc}/${_bootstrap_dir}/bin"
	fi
}

# we need this because cargo verifies checksums of all files in vendor
# crates when it builds and gives us no way to override or update the
# file sanely... so just clear out the file list
_clear_vendor_checksums() {
	sed -i 's/\("files":{\)[^}]*/\1/' vendor/$1/.cargo-checksum.json
}

post_patch() {
	rm -rf src/llvm-project
	if [ "$build_option_static_llvm" ]; then
		for x in ${FILESDIR}/patches/static-llvm/*.patch; do
			msg_normal "Applying patch $x\n"
			patch -sNp1 -i ${x}
		done
	fi

	# clear out all the checksum nonsense of patched vendor crates
	_clear_vendor_checksums libc
	_clear_vendor_checksums lzma-sys
	_clear_vendor_checksums typenum
	_clear_vendor_checksums backtrace-sys
}

do_configure() {
	local _rust_root _local_rebuild _use_debug _use_rpath

	if [ "$CROSS_BUILD" ]; then
		_rust_root="/usr"
		_local_rebuild="true"
	else
		_rust_root="${wrksrc}/${_bootstrap_dir}"
		_local_rebuild="false"
	fi

	# emit debug info, enabled when generating debug packages
	if [ -n "$XBPS_DEBUG_PKGS" ]; then
		_use_debug="true"
	else
		_use_debug="false"
	fi
	# if true, the binaries will be built with rpath, so the binaries will be
	# usable directly from the build directory, this is not desirable for
	# packaging but is useful when building bootstrap binaries
	_use_rpath="false"

	cat > config.toml <<- EOF
		[build]
		build = "${RUST_BUILD}"
		host = [ "${RUST_TARGET}" ]
		target = [ "${RUST_TARGET}" ]
		cargo = "${_rust_root}/bin/cargo"
		rustc = "${_rust_root}/bin/rustc"
		submodules = false
		python = "python3"
		locked-deps = true
		vendor = true
		full-bootstrap = false
		local-rebuild = ${_local_rebuild}
		extended = false
		docs = false
		tools = []
		[install]
		prefix = "/usr"
		[rust]
		codegen-units = 1
		debuginfo = ${_use_debug}
		debuginfo-lines = ${_use_debug}
		debuginfo-only-std = ${_use_debug}
		debuginfo-tools = ${_use_debug}
		backtrace = true
		channel = "stable"
		rpath = ${_use_rpath}
		jemalloc = false
		codegen-tests = false
		[target.${RUST_BUILD}]
		llvm-config = "/usr/bin/llvm-config"
		crt-static = false
		cc = "${CC_host:-$CC}"
		cxx = "${CXX_host:-$CXX}"
		ar = "${AR_host:-$AR}"
		linker = "${CC_host:-$CC}"
	EOF

	if [ "$CROSS_BUILD" ]; then
		cat >> config.toml <<- EOF
			[target.${RUST_TARGET}]
			llvm-config = "/usr/bin/llvm-config"
			crt-static = false
			cc = "${CC}"
			cxx = "${CXX}"
			ar = "${AR}"
			linker = "${CC}"
		EOF
	fi
}

# Set the correct CFLAGS for the build host, we have to compile libbacktrace
# for it during stage1. Otherwise it attemps to use CFLAGS, which are the CFLAGS
# of the cross host.
do_build() {
	if [ ! "$build_option_static_llvm" ]; then
		export LLVM_LINK_SHARED=1
	fi
	export RUST_BACKTRACE=1
	export CARGO_HOME="$wrksrc/.cargo"
	export SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt
	# prevent sysroot from leaking in
	export RUSTFLAGS=""

	env CFLAGS_${RUST_BUILD}="${CFLAGS_host}" \
	 python3 x.py dist --jobs $XBPS_MAKEJOBS
}

do_check() {
	export RUST_BACKTRACE=1

	python3 x.py test ${makejobs} --no-doc --no-fail-fast \
		src/test/codegen \
		src/test/codegen-units \
		src/test/compile-fail \
		src/test/incremental \
		src/test/mir-opt \
		src/test/pretty \
		src/test/run-fail \
		src/test/run-fail/pretty \
		src/test/run-make \
		src/test/run-make-fulldeps \
		src/test/run-pass \
		src/test/run-pass/pretty \
		src/test/run-pass-fulldeps \
		src/test/run-pass-fulldeps/pretty \
		src/test/ui \
		src/test/ui-fulldeps
}

do_install() {
	vmkdir usr
	tar xf build/dist/rustc-${version}-${RUST_TARGET}.tar.gz \
	 -C "$DESTDIR/usr" --strip-components=2 --exclude=manifest.in
	tar xf build/dist/rust-std-${version}-${RUST_TARGET}.tar.gz \
	 -C "$DESTDIR/usr/lib" --strip-components=3 --exclude=manifest.in

	vlicense COPYRIGHT
	vlicense LICENSE-APACHE
	vlicense LICENSE-MIT

	cd ${DESTDIR}/usr/lib
	ln -sf rustlib/*/lib/*.so .   # symlinks instead of copies
}

rust-doc_package() {
	short_desc+=" - documentation"
	archs=noarch
	pkg_install() {
		vmove usr/share/doc
	}
}

rust-std_package() {
	short_desc+=" - standard library"
	pkg_install() {
		vmove usr/lib/rustlib
	}
}