SUMMARY="Modern and safe systems programming language"
DESCRIPTION="Rust is a systems programming language that runs blazingly fast, prevents almost all crashes*, and eliminates data races."
HOMEPAGE="https://www.rust-lang.org/"
COPYRIGHT="2017, The Rust Project Developers"
LICENSE="MIT"
REVISION="2"
cargoVersion="0.20.0"
srcGitRev="1.19.0"
SOURCE_URI="https://github.com/rust-lang/rust/archive/$srcGitRev.tar.gz"
CHECKSUM_SHA256="7e1ecb476118b79b5abed02bc7a724bb65413057e26f1d2b8538c572f7463be0"
SOURCE_FILENAME="rust-$srcGitRev.tar.gz"
SOURCE_DIR="rust-$srcGitRev"
srcGitRev_2="c8a8767c56ad3d3f4eb45c87b95026936fb9aa35"
SOURCE_URI_2="https://github.com/rust-lang/compiler-rt/archive/$srcGitRev_2.tar.gz"
CHECKSUM_SHA256_2="ac595c03dd5dcd3ad66eee76bec2e95770259e4aa4db5df875c2bbcf7781a441"
srcGitRev_3="b4ff403041f17957f735ad750c3241a3a428b9b7"
SOURCE_URI_3="https://github.com/rust-lang/rust-installer/archive/$srcGitRev_3.tar.gz"
CHECKSUM_SHA256_3="dfcce5a555e0aff5f7ba7681968b77529c806c3109ede78eb1b45a0c4455db4b"
srcGitRev_4="da282f1bb7277b4d30fa1599ee29ad8eb4dd2a92"
SOURCE_URI_4="https://github.com/rust-lang/hoedown/archive/$srcGitRev_4.tar.gz"
CHECKSUM_SHA256_4="623889a326754e93a4a7a8a3487699ea786f4ca9b118f7468c12f8b9966905e6"
srcGitRev_5="03562b0cb26a00f49d4eaf18ca3e49608110b0c8"
SOURCE_URI_5="https://github.com/rust-lang/libc/archive/$srcGitRev_5.tar.gz"
CHECKSUM_SHA256_5="2ecccc8810c1e84e1b8bbcb564c96d1df5aefce13663efc006621a30685a9e4f"
srcGitRev_6="2153316469829c338eab18835b879d01c3a986a8"
SOURCE_URI_6="https://github.com/rust-lang/llvm/archive/$srcGitRev_6.tar.gz"
CHECKSUM_SHA256_6="495850c84eab4f20277a839a12283dd27fb9e61daf0c7dec0e76d1bc1a5a437b"
SOURCE_URI_7="https://github.com/rust-lang/cargo/archive/$cargoVersion.tar.gz"
CHECKSUM_SHA256_7="f0e21d23cffd3510ba8a65e6a4d1010073afc0e573d9d92c23d22b868ca0bc42"
srcGitRev_8="c0e8c56d76bdf6bd16c64338f81c04d48c60f117"
SOURCE_URI_8="https://github.com/rust-lang-nursery/nomicon/archive/$srcGitRev_8.tar.gz"
CHECKSUM_SHA256_8="a15a4bbc86a207e9cc9604ed0f7a7039f9365034063096e4f6e44eb8832fffec"
srcGitRev_9="876582e9d0fbdc9cecb03133c28db96e9ff8c844"
SOURCE_URI_9="https://github.com/rust-lang-nursery/reference/archive/$srcGitRev_9.tar.gz"
CHECKSUM_SHA256_9="0c5e47826948cf30345cd5c09f237566dfc995b7f1f2c8751e306c5488f05ecb"
srcGitRev_10="ad7de198561b3a12217ea2da76d796d9c7fc0ed3"
SOURCE_URI_10="https://github.com/rust-lang/book/archive/$srcGitRev_10.tar.gz"
CHECKSUM_SHA256_10="31d77c9ccb2924f8381a09b6eb8b7efe74fbc280c581a21728e0c50878413ec0"
srcGitRev_11="bfe80cfa8db75500e67ca8762465d27662674637"
SOURCE_URI_11="https://github.com/rust-lang-nursery/rls/archive/$srcGitRev_11.tar.gz"
CHECKSUM_SHA256_11="666ba8fb85cd875471ba1d71c9e674516cd7891ea954721276a9a99a1e4aa7d8"
srcGitRev_12="0.1.6"
SOURCE_URI_12="https://github.com/alexcrichton/cargo-vendor/archive/$srcGitRev_12.tar.gz"
CHECKSUM_SHA256_12="927f6b782f0be32c6027335bbd49fb40cffa922095ffacc9a0aca78e45023f1a"
PATCHES="rust-$portVersion.patchset"
PATCHES_5="rust-libc-$portVersion.patchset"
PATCHES_12="cargo-vendor-$srcGitRev_12.patchset"

ARCHITECTURES="all !x86_gcc2 ?x86"
SECONDARY_ARCHITECTURES="x86"

PROVIDES="
	rust$secondaryArchSuffix = $portVersion
	cmd:cargo$secondaryArchSuffix = $cargoVersion
	cmd:rust_gdb = $portVersion
	cmd:rust_lldb = $portVersion
	cmd:rustc = $portVersion
	cmd:rustdoc = $portVersion
	"
REQUIRES="
	haiku$secondaryArchSuffix
	lib:libcrypto$secondaryArchSuffix
	lib:libcurl$secondaryArchSuffix
	lib:libssl$secondaryArchSuffix
	lib:libz$secondaryArchSuffix
	"

BUILD_REQUIRES="
	haiku${secondaryArchSuffix}_devel
	devel:libcurl$secondaryArchSuffix
	devel:libssl$secondaryArchSuffix
	devel:libz$secondaryArchSuffix
	"
BUILD_PREREQUIRES="
	cmd:cargo$secondaryArchSuffix == 0.19.0
	cmd:cmake
	cmd:cmp
	cmd:file
	cmd:find
	cmd:gcc$secondaryArchSuffix
	cmd:git
	cmd:grep
	cmd:ld$secondaryArchSuffix
	cmd:make
	cmd:pkg_config$secondaryArchSuffix
	cmd:python
	cmd:rustc == 1.18.0
	cmd:sed
	cmd:tar
	cmd:which
	cmd:xargs
	"

BUILD()
{
	# With the new build system, Rust always makes a tarball with the source
	# In older recipes we symlinked the other git submodules, now we have to
	# copy them
	rm -rf src/tools/cargo src/compiler-rt src/llvm src/tools/rust-installer \
	       src/liblibc src/rt/hoedown src/doc/nomicon src/doc/reference \
	       src/doc/book src/tools/rls
	cp -r /sources-2/compiler-rt-$srcGitRev_2 src/compiler-rt
	cp -r /sources-3/rust-installer-$srcGitRev_3 src/tools/rust-installer
	cp -r /sources-4/hoedown-$srcGitRev_4 src/rt/hoedown
	cp -r /sources-5/libc-$srcGitRev_5 src/liblibc
	cp -r /sources-6/llvm-$srcGitRev_6 src/llvm
	cp -r /sources-7/cargo-$cargoVersion src/tools/cargo
	cp -r /sources-8/nomicon-$srcGitRev_8 src/doc/nomicon
	cp -r /sources-9/reference-$srcGitRev_9 src/doc/reference
	cp -r /sources-10/book-$srcGitRev_10 src/doc/book
	cp -r /sources-11/rls-$srcGitRev_11 src/tools/rls

	# write the build configuration
	cat >config.toml <<- EOL
	[llvm]
	targets = "X86"

	[build]
	cargo = "/$relativeBinDir/cargo"
	rustc = "/boot/system/bin/rustc"
	submodules = false
	extended = true

	[install]
	prefix = "$prefix"
	libdir = "$relativeLibDir"
	mandir = "$relativeManDir"
	docdir = "$relativeDevelopDocDir"
	sysconfdir = "$relativeDataDir"

	[rust]
	channel = "stable"
	use-jemalloc = false
	rpath = false
EOL

	# the install step of rust depends on the cargo vendor command
	# build it separately here
	cd /sources-12/cargo-vendor-$srcGitRev_12
	cargo install --force

	# now build rust and cargo
	cd /sources/rust-$srcGitRev
	./x.py dist
}

INSTALL()
{
	# we will manually invoke the install scripts
	if [ $effectiveTargetArchitecture = x86 ]; then
		architecture="i686-unknown-haiku"
	fi
	if [ $effectiveTargetArchitecture = x86_64 ]; then
		architecture="x86_64-unknown-haiku"
	fi

	# let's install the packages one by one
	cd /sources/rust-$srcGitRev/build/tmp/dist/
	for module in "rust-docs-$srcGitRev-$architecture"     \
	              "rust-std-$srcGitRev-$architecture"      \
	              "rustc-$srcGitRev-$architecture"         \
	              "rust-analysis-$srcGitRev-$architecture" \
	              "cargo-$cargoVersion-$architecture"
	do
		./$module/install.sh                               \
				--prefix=$prefix                           \
				--docdir=$developDocDir                    \
				--libdir=$libDir                           \
				--mandir=$manDir                           \
				--sysconfdir=$dataDir                      \
				--disable-ldconfig
	done

	# move the cargo and binaries (in case of a secondary arch)
	if [ -n "$secondaryArchSuffix" ]; then
		mkdir -p $binDir
		mv $prefix/bin/cargo $binDir/cargo
	fi

	# remove zsh data, it is not used on Haiku anyway
	rm -rf $prefix/share

	# move the `rustlib` folder to the developLibDirs (as it is a framework of sorts)
	# do create a link in $prefix/lib as that is where rustc expects things to live
	# Note; this actually seems to be a bug in the Rust build system. The path
	# to rustlib is hardcoded in the rustc binary, but it does allow it to be
	# set to libdir_relative (see config.rs in the bootstrap tool). This variable
	# is only set when the configure script is used to generate the config, not
	# with config.toml
	mkdir -p $developLibDir
	mv $libDir/rustlib $developLibDir
	cd $prefix/lib
	ln -s $developLibDir/rustlib rustlib

	# clean out unneccesary files created by the rust installer
	rm $developLibDir/rustlib/components
	rm $developLibDir/rustlib/install.log
	rm $developLibDir/rustlib/manifest-cargo
	rm $developLibDir/rustlib/manifest-rust-analysis-*haiku
	rm $developLibDir/rustlib/manifest-rust-docs
	rm $developLibDir/rustlib/manifest-rust-std-*-haiku
	rm $developLibDir/rustlib/manifest-rustc
	rm $developLibDir/rustlib/rust-installer-version
	rm $developLibDir/rustlib/uninstall.sh
}

TEST()
{
	make check
}