# Template file for 'rust'
# partially adapted from Alpine/Adélie's Rust APKBUILD
#
# Permission to use rust and cargo trademark is granted.
# See: https://github.com/rust-lang/core-team/issues/4
pkgname=rust
version=1.41.1
revision=2
_rust_dist_version=1.40.0
_cargo_dist_version=0.41.0
# Always make sure custom distfiles used for bootstrap are
# uploaded to https://alpha.de.repo.voidlinux.org/distfiles/
wrksrc="rustc-${version}-src"
hostmakedepends="cmake curl pkg-config python3 tar"
makedepends="libffi-devel ncurses-devel libxml2-devel zlib-devel llvm"
depends="rust-std"
short_desc="Safe, concurrent, practical systems language"
maintainer="Enno Boland <gottox@voidlinux.org>"
license="MIT, Apache-2.0"
homepage="https://www.rust-lang.org/"
distfiles="https://static.rust-lang.org/dist/rustc-${version}-src.tar.gz"
checksum=38c93d016e6d3e083aa15e8f65511d3b4983072c0218a529f5ee94dd1de84573
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"

	# 32-bit ppc needs custom bootstrap for now because of patches
	case "$XBPS_MACHINE" in
		x86_64*|i686|ppc64le) ;;
		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+="
			 257e4789043098a5e3b4fa85ea988019f37d640a10f83d39ada00fb23e057b8a
			 beab29565d12a6b9db4ef471c34d4c034295760095f7edc3f7b6c51fc08589a0
			 c48bc132f4025ff39b1b6dc52aef9d406c3f926ce05fe92d943ceab7a5fd6058"
			;;
		x86_64)
			checksum+="
			 b1c00618b7a98156e88b14682508a503284f85748eab23de749a20dcc8847111
			 5a0b14a51f51b0194f70a2023749d9cb49c3b2e11f0d4c8232960b91fad336ac
			 9b6ae643fa240c5ecbc1dc390f4020b6a683f25bac6f7437ebd4b9d32a8d0b6c"
			;;
		x86_64-musl)
			checksum+="
			 769b9e31557fcc0ea2a661f88b679d3dbd62b537807c7b3c75ac6816a1be4fa3
			 c647bb7f399b3d18e345b2dab1fb073470582a9298e83d8648f6661544df7279
			 848646326474392bdac70a5bfa06efda4c36e2bbbf088f07456f98c7575844e1"
			;;
		ppc64le)
			checksum+="
			 aa07a07ad272de825da8c18ad8dc4143a25bd28e5538d68c3bced53f060432b4
			 4eb3141fb6c3d3e101b5d4493664c9a01d4bb9eebdf4b96f5c26a81188c2452d
			 7705f21d938a72ba6f01818661b2dea29183209940a335f18d1761e1e03d3710"
			;;
		ppc64le-musl)
			checksum+="
			 2c8ffeaa23d8ae0e1776af068bd92ba5cd15973696956a2b58c215a940721e67
			 c40f696c8afdcaafec50ddc29b9d8c836efa01b681e8ca48d09fcf79576ee039
			 0fbe481d284a14b84cc63ccb50caeb248200f238d2c3e449c2b8a8bf49c951ce"
			;;
		ppc64)
			checksum+="
			 0f4d02f2d21d8f4b23829502130c89599f2315bb9adcee4f1b5109ee68a187ab
			 8edd65b1f53485caa134d1625131e76f7ca072366cc5df3e2761a39f52f7e83f
			 23a7967b0c1c762cdbea4f850cacbb462e386977203c0d5ff060275c526d80d7"
			;;
		ppc64-musl)
			checksum+="
			 4645a4bb0d78da07c8dba1edc2769382a94dc3d8fbdd48e105a5c8dd20170e21
			 0dbf82f8c24140f17fda36811861c9c3aa361f2256c5274a11eb4a1f183c7f3a
			 d5a808fdb50068a14d6578f052c9e21ae7881d4ecdcf9e098c5e2c2b1ae65786"
			;;
		ppc)
			checksum+="
			 40121c3a6ec199338e7139e03e917a93290b7623334740d4d25cd1c8092f3de1
			 c2b17cfe8b25d23b348b40e5802a4e369f691abe6ddbd4372df0d660eb100398
			 295030192cf5b7e1fce75845a1961619a5f701185400ad816cf950d4e18f0646"
			;;
		ppc-musl)
			checksum+="
			 c5b743370ce140e95d413b20734d26ac22697b99455262cef801883f5c732019
			 8061486273c602ac29c3e98aaa3a6d1114d16b9973e051f127e922232fef2270
			 91cc5d6f0192f68d5053fb460dd8347b28cb29b4a63a6e648d6b754795b5c4e8"
			;;
	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 typenum
	_clear_vendor_checksums backtrace-sys
	_clear_vendor_checksums lzma-sys
}

do_configure() {
	local _rust_root _local_rebuild _use_debug _use_debug_rustc _use_rpath

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

	# disable rustc debug info as it bloats up rust-std significantly
	# set to 1 or 2 if you wish to have debug info for rustc, it won't
	# link on 32-bit platforms though (too big)
	_use_debug_rustc="0"

	# use stdlib debug level 2 for all platforms when generating debug
	if [ -n "$XBPS_DEBUG_PKGS" ]; then
		_use_debug="2"
	else
		_use_debug="0"
	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
		codegen-units-std = 1
		debug-assertions = false
		debuginfo-level = ${_use_debug}
		debuginfo-level-rustc = ${_use_debug_rustc}
		debuginfo-level-tests = 0
		backtrace = true
		incremental = false
		parallel-compiler = false
		channel = "stable"
		rpath = ${_use_rpath}
		verbose-tests = true
		dist-src = false
		jemalloc = false
		llvm-libunwind = false
		codegen-tests = false
		[dist]
		src-tarball = false
		[target.${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
	tar xf build/dist/rustc-dev-${version}-${RUST_TARGET}.tar.gz \
         -C "$DESTDIR/usr/lib" --strip-components=3 --exclude=manifest.in

	vlicense COPYRIGHT
	vlicense LICENSE-APACHE
	vlicense LICENSE-MIT

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

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
	}
}