# Template file for 'rust'
pkgname=rust
version=1.13.0
revision=1
# NB. if you push any(!) new version, don't forget to put a build
# output of musl to https://repo.voidlinux.eu/distfiles/
wrksrc="rustc-${version}"
lib32disabled=yes
patch_args="-Np1"
build_style=configure
make_build_args="dist VERBOSE=1"
only_for_archs="x86_64 x86_64-musl"
hostmakedepends="cmake curl pkg-config python"
makedepends="libffi-devel lld-devel llvm ncurses-devel zlib-devel"
short_desc="Safe, concurrent, practical systems language"
maintainer="Juan RP <xtraeme@voidlinux.eu>"
homepage="http://www.rust-lang.org/"
license="MIT, Apache-2.0"
distfiles="https://static.rust-lang.org/dist/rustc-${version}-src.tar.gz"
checksum=ecb84775ca977a5efec14d0cad19621a155bfcbbf46e8050d18721bb1e3e5084

case "$XBPS_MACHINE" in
x86_64-musl)
	distfiles+="
	 https://repo.voidlinux.eu/distfiles/rustc-1.12.1-x86_64-unknown-linux-musl.tar.gz
	 https://repo.voidlinux.eu/distfiles/rust-std-1.12.1-x86_64-unknown-linux-musl.tar.gz
	 https://alpine.geeknet.cz/distfiles/cargo-0.11.0-nightly-x86_64-alpine-linux-musl.tar.gz"
	checksum+="
	 96733254cebd2dfacbfc774d7d788cb3df4d30cdfacd3f9c7883b0ffd104821d
	 dcc68b2d920947f8795c46239f141dfc876803e7b90f34852dea15d51db13322
	 587172026c0565e839d96b0c1d4c68c000927817398241f96682dca47fa8c3b9"
	;;
x86_64)
	# extract from src/stage0.txt
	distfiles+="
	 https://static.rust-lang.org/dist/2016-10-20/rustc-1.12.1-x86_64-unknown-linux-gnu.tar.gz
	 https://static.rust-lang.org/dist/2016-10-20/rust-std-1.12.1-x86_64-unknown-linux-gnu.tar.gz
	 https://static.rust-lang.org/cargo-dist/2016-08-21/cargo-nightly-x86_64-unknown-linux-gnu.tar.gz"
	checksum+="
	 a753e3b6cfa8417978e4bfc0d3282f22be4abc5e106af39f4cb54dc775f64546
	 2d428042fd0b6cc1b08584341b2ad81dabe7abdfadcb0eb5082cfbc93e1ab90b
	 cf47787fd50bf6c7f68db290eab054e493e4619d42a8faf66565431449055f1c"
	;;
esac

post_extract() {
	rm -rf src/llvm

	mkdir -p stage0
	cp -flr ../rustc-*/rustc/* stage0
	cp -flr ../rust-std-*/rust-std-*/* stage0
	cp -flr ../cargo-*/cargo/* stage0

	# XXX: Cheat Rust build system so we can build rustc using different
	# version of (prebuilt) stable rustc than preconfigured. It's hack-ish,
	# but since we're basically rebuilding rustc with the same version,
	# it's actually safe.
	# Note: --enable-local-rebuild from #33787 didn't work, don't know why.
	export LD_LIBRARY_PATH="$wrksrc/stage0/lib"
	rustc_ver="$($wrksrc/stage0/bin/rustc --version | cut -f2 -d ' ')"
	rustc_key="$(printf "$rustc_ver" | md5sum | cut -c1-8)"
	sed -Ei \
		-e "s/^(rustc):.*/\1: $rustc_ver-1970-01-01/" \
		-e "s/^(rustc_key):.*/\1: $rustc_key/" \
		src/stage0.txt

	# Generate config for bootstrap.py to use our prebuilt rustc and cargo
	# for bootstrapping instead of downloading snapshot from internet.
	cat > config.toml <<EOF
[build]
cargo = "$wrksrc/stage0/bin/cargo"
rustc = "$wrksrc/stage0/bin/rustc"
EOF

	sed -i /LD_LIBRARY_PATH/d src/bootstrap/bootstrap.py
}

pre_build() {
	export CARGO_HOME="$wrksrc/.cargo"
	export LD_LIBRARY_PATH="$wrksrc/stage0/lib"
}

do_configure() {
	local _triplet
	case $XBPS_TARGET_MACHINE in
		i686*) _triplet=i686-unknown-linux-gnu;;
		x86_64) _triplet=x86_64-unknown-linux-gnu;;
		x86_64-musl) _triplet=x86_64-unknown-linux-musl;;
		*) _triplet=$XBPS_TARGET_MACHINE;;
	esac
	export LD_LIBRARY_PATH="$wrksrc/stage0/lib"
	configure_args="
		--prefix=/usr 
		--host=${_triplet} 
		--build=${_triplet} 
		--release-channel=stable 
		--disable-docs 
		--disable-rpath
		--enable-ccache 
		--enable-rustbuild 
		--llvm-root=/usr 
	"
	case "$XBPS_TARGET_MACHINE" in
        *-musl) 
		configure_args+="--musl-root=/usr --disable-jemalloc"
		;;
	esac
	./configure $configure_args
 
}
do_install() {
	vmkdir usr
	tar xf build/dist/rustc-*-*-*.tar.gz -C "$DESTDIR/usr" --strip-components=2 --exclude=manifest.in
	tar xf build/dist/rust-std-*-*-*.tar.gz -C "$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

	rm -rf ${DESTDIR}/usr/share/doc/rust
}