rust-nightly.nix

{date, hash}:

let
	pkgs = import <nixpkgs> {};
	stdenv = pkgs.stdenv;
in stdenv.mkDerivation rec {
	name = "rust-nightly-${date}";
	src = pkgs.fetchurl {
		url = "http://static.rust-lang.org/dist/${date}/rust-nightly-x86_64-unknown-linux-gnu.tar.gz";
		sha256 = hash;
	};
	installPhase = ''
		mkdir -p $out/bin
		mkdir -p $out/lib
		mkdir -p $out/share
		mkdir -p $out/etc

		cp -t $out/bin -r -- rustc/bin/*
		cp -t $out/lib -r -- rustc/lib/*
		cp -t $out/share -r -- rustc/share/*

		cp -t $out/bin -r -- cargo/bin/*
		cp -t $out/lib -r -- cargo/lib/*
		cp -t $out/share -r -- cargo/share/*
		cp -t $out/etc -r -- cargo/etc/*

		# why doesn't this get fixed in patchPhase?
		for file in "$out/bin/rustc $out/bin/rustdoc $out/bin/cargo"
		do
			patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" --set-rpath $out/lib:${stdenv.cc.cc}/lib${stdenv.lib.optionalString stdenv.is64bit "64"} $file
		done
		for file in $(find $out/lib -name "*.so")
		do
			patchelf --set-rpath $out/lib $file
		done
	'';
}