[PATCH 1/2] Rust: New package.

[Stefan Schantl <stefan.schantl@ipfire.org>]

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Signed-off-by: Stefan Schantl <stefan.schantl(a)ipfire.org>
---
 rust/rust.nm | 175 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 175 insertions(+)
 create mode 100644 rust/rust.nm

diff --git a/rust/rust.nm b/rust/rust.nm
new file mode 100644
index 000000000..96f198f85
--- /dev/null
+++ b/rust/rust.nm
@@ -0,0 +1,175 @@
+###############################################################################
+# IPFire.org    - An Open Source Firewall Solution                            #
+# Copyright (C) - IPFire Development Team <info(a)ipfire.org>                   #
+###############################################################################
+
+name       = rust
+version    = 1.37.0
+release    = 1
+
+groups     = Applications/System
+url        = https://www.rust-lang.org/
+license    = 
+summary    = A language empowering everyone to build reliable and efficient software.
+
+description
+	
+end
+
+source_dl  = https://static.rust-lang.org/dist/
+sources    = rustc-%{version}-src.tar.gz
+
+# For building rustc a bootstrapped rust toolchain has to be downloaded and used.
+if %{DISTRO_ARCH} == "armv7hl"
+	rust_bootstrap = armv7-unknown-linux-gnueabihf
+elif %{DISTRO_ARCH} == "armv5tel"
+	rust_bootstrap = arm-unknown-linux-gnueabi
+else
+	rust_bootstrap = %{DISTRO_ARCH}-unknown-linux-gnu
+end
+
+sources += rust-%{version}-%{rust_bootstrap}.tar.gz
+
+build
+	requires
+		/usr/bin/llvm-config
+		/usr/bin/FileCheck
+		cmake
+		libcurl-devel >= 7.65.3
+		llvm
+		libffi-devel
+		libgit2-devel
+		libssh2-devel
+		openssl-devel
+		pakfire >= 0.9.27-3
+		python3
+		xz-devel
+		zlib-devel
+	end
+
+	local_rust_root = "/opt"
+	rustlibdir = "%{libdir}/rustlib"
+
+	DIR_APP = %{DIR_SRC}/rustc-%{version}-src
+	DIR_BOOTSTRAPPED = %{DIR_SRC}/rust-%{version}-%{rust_bootstrap}
+
+	configure_options +=\
+		--build=%{rust_bootstrap} \
+		--host=%{rust_bootstrap} \
+		--target=%{rust_bootstrap} \
+		--disable-option-checking \
+		--local-rust-root=%{local_rust_root} \
+		--llvm-root=%{prefix} \
+		--enable-llvm-link-shared \
+		--disable-rpath \
+		--enable-extended \
+		--enable-vendor \
+		--release-channel="stable"
+
+	prepare_cmds
+		# Install precompiled rust toolchain.
+		cd %{DIR_BOOTSTRAPPED}
+
+		./install.sh --components=cargo,rustc,rust-std-%{rust_bootstrap} \
+		--prefix=%{local_rust_root} --disable-ldconfig
+
+		# Test if the bootstrapped tools correctly have been installed.	
+		test -f %{local_rust_root}/bin/cargo
+		test -f %{local_rust_root}/bin/rustc
+	end
+
+	build
+		# Change into main rust source directory.
+		cd %{DIR_APP}
+
+		# Do not build with shipped llvm and llvm-emscripten.
+		rm -rf src/llvm-project/
+		rm -rf src/llvm-emscripten/
+
+		# Remove other unused vendored libraries
+		rm -rf vendor/curl-sys/curl/
+		rm -rf vendor/jemalloc-sys/jemalloc/
+		rm -rf vendor/libz-sys/src/zlib/
+		rm -rf vendor/lzma-sys/xz-*/
+		rm -rf vendor/openssl-src/openssl/
+
+		# Use the distro libgit2
+		export LIBGIT2_SYS_USE_PKG_CONFIG=1
+		rm -rf vendor/libgit2-sys/libgit2/
+
+		# Use the distro libssh2
+		export LIBSSH2_SYS_USE_PKG_CONFIG=1
+		rm -rf vendor/libssh2-sys/libssh2/
+
+		# Use the dynamic xz-libs
+		sed -i.lzma -e '/LZMA_API_STATIC/d' src/bootstrap/tool.rs
+
+		# The configure macro will modify some autoconf-related files, which upsets
+		# cargo when it tries to verify checksums in those files.  If we just truncate
+		# that file list, cargo won't have anything to complain about.
+		find vendor -name .cargo-checksum.json \
+			-exec sed -i.uncheck -e 's/"files":{[^}]*}/"files":{ }/' '{}' '+'
+
+		# Launch configure script
+		./configure %{configure_options}
+
+		# Build rust.
+		%{python3} ./x.py build --exclude src/tools/miri
+	end
+
+	install
+		DESTDIR=%{BUILDROOT} %{python3} ./x.py install
+
+		# The shared libraries should be executable for debuginfo extraction.
+		find %{BUILDROOT}%{libdir} -maxdepth 1 -type f -name '*.so' -exec chmod -v +x '{}' '+'
+	
+		# The libdir libraries are identical to those under rustlib/.  It's easier on
+		# library loading if we keep them in libdir, but we do need them in rustlib/
+		# to support dynamic linking for compiler plugins, so we'll symlink.
+		(
+			cd %{BUILDROOT}%{rustlibdir}/%{rust_bootstrap}/lib
+
+			for i in *.so; do
+				[ -f %{BUILDROOT}%{rustlibdir}/%{rust_bootstrap}/lib/${i} ] && ln -svf ../../../${i} \
+					%{BUILDROOT}%{rustlibdir}/%{rust_bootstrap}/lib/${i};
+			done
+		)
+	
+		# Remove installer artifacts (manifests, uninstall scripts, etc.)
+		find %{BUILDROOT}%{rustlibdir} -maxdepth 1 -type f -exec rm -v '{}' '+'
+	
+		# Remove backup files from %%configure munging
+		find %{BUILDROOT}%{rustlibdir} -type f -name '*.orig' -exec rm -v '{}' '+'
+
+		# Remove documentation files.
+		rm -rvf %{BUILDROOT}%{docdir}%{name}
+
+		# Remove rust source.
+		rm -rvf %{BUILDROOT}%{rustlibdir}/src
+
+		# Create the path for crate-devel packages
+		mkdir -pv %{BUILDROOT}%{datadir}/cargo/registry
+
+		# Remove zsh related files.
+		rm -rvf %{BUILDROOT}%{datadir}/zsh/
+	end
+
+
+	# While we don't want to encourage dynamic linking to Rust shared libraries, as
+	# there's no stable ABI, we still need the unallocated metadata (.rustc) to
+	# support custom-derive plugins like #[proc_macro_derive(Foo)].  But eu-strip is
+	# very eager by default, so it has to be limited to keep the rustc sections.
+	debuginfo_options = --keep-section .rustc
+end
+
+packages
+	package %{name}
+		provides += \
+			bundled(libbacktrace) = 8.1.0 \
+			bundled(miniz) = 2.0.7
+	end
+
+	package %{name}-debuginfo
+		template DEBUGINFO
+	end
+end
-- 
2.20.1