# Template file for 'rust'
pkgname=rust
version=1.12.0
revision=1
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=ac5907d6fa96c19bd5901d8d99383fb8755127571ead3d4070cce9c1fb5f337a

case "$XBPS_MACHINE" in
x86_64-musl)
	distfiles+="
	 https://repo.voidlinux.eu/distfiles/rustc-1.11.0-x86_64-unknown-linux-musl.tar.gz
	 https://repo.voidlinux.eu/distfiles/rust-std-1.11.0-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+="
	 6f1cfcab1760573f949265726951e9032f9f3ce8a202d727c1f84026341b8c33
	 fbb6398b8537f9435d9c362f5e79be000df9df090d5d2bc6113c69bc050aa1fa
	 587172026c0565e839d96b0c1d4c68c000927817398241f96682dca47fa8c3b9"
	;;
x86_64)
	distfiles+="
	 https://static.rust-lang.org/dist/2016-08-16/rustc-1.11.0-x86_64-unknown-linux-gnu.tar.gz
	 https://static.rust-lang.org/dist/2016-08-16/rust-std-1.11.0-x86_64-unknown-linux-gnu.tar.gz
	 https://static.rust-lang.org/cargo-dist/2016-07-05/cargo-nightly-x86_64-unknown-linux-gnu.tar.gz"
	checksum+="
	 e9d27a72900da33c1bbd0e59dd42fd6414c6bcdfa33593fb7c7360068406394a
	 893a53b5f78ec9eb7ac4ad3b3bd375d2ddad8ca1687ed5867621ec157eddbea5
	 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
}