nixpkgs/pkgs/development/compilers/rustc/generic.nix
Eelco Dolstra 8def3d69c7 rustc: Install docs in a separator output
This reduces rustc's size from 359 MiB to 186 MiB.

Maybe we should disable doc generation altogether, since it's very
slow and people who need docs will JFGI anyway. But for now I've left
it.
2015-06-19 18:01:43 +02:00

145 lines
4.6 KiB
Nix

{ stdenv, fetchurl, fetchgit, fetchzip, which, file, perl, curl, python27
, makeWrapper, tzdata, git, valgrind, procps, coreutils
, shortVersion, isRelease
, srcSha, srcRev ? ""
, snapshotHashLinux686, snapshotHashLinux64
, snapshotHashDarwin686, snapshotHashDarwin64
, snapshotDate, snapshotRev
, configureFlags ? []
, patches
}:
assert !stdenv.isFreeBSD;
/* Rust's build process has a few quirks :
- It requires some patched in llvm that haven't landed upstream, so it
compiles its own llvm. This might change in the future, so at some
point we may be able to switch to nix's llvm.
- The Rust compiler is written is Rust, so it requires a bootstrap
compiler, which is downloaded during the build. To make the build
pure, we download it ourself before and put it where it is
expected. Once the language is stable (1.0) , we might want to
switch it to use nix's packaged rust compiler.
NOTE : some derivation depend on rust. When updating this, please make
sure those derivations still compile. (racer, for example).
*/
assert (if isRelease then srcRev == "" else srcRev != "");
let version = if isRelease then
"${shortVersion}"
else
"${shortVersion}-g${builtins.substring 0 7 srcRev}";
name = "rustc-${version}";
platform = if stdenv.system == "i686-linux"
then "linux-i386"
else if stdenv.system == "x86_64-linux"
then "linux-x86_64"
else if stdenv.system == "i686-darwin"
then "macos-i386"
else if stdenv.system == "x86_64-darwin"
then "macos-x86_64"
else abort "no snapshot to bootstrap for this platform (missing platform url suffix)";
target = if stdenv.system == "i686-linux"
then "i686-unknown-linux-gnu"
else if stdenv.system == "x86_64-linux"
then "x86_64-unknown-linux-gnu"
else if stdenv.system == "i686-darwin"
then "i686-apple-darwin"
else if stdenv.system == "x86_64-darwin"
then "x86_64-apple-darwin"
else abort "no snapshot to bootstrap for this platform (missing target triple)";
meta = with stdenv.lib; {
homepage = http://www.rust-lang.org/;
description = "A safe, concurrent, practical language";
maintainers = with maintainers; [ madjar cstrahan wizeman globin ];
license = [ licenses.mit licenses.asl20 ];
platforms = platforms.linux;
};
snapshotHash = if stdenv.system == "i686-linux"
then snapshotHashLinux686
else if stdenv.system == "x86_64-linux"
then snapshotHashLinux64
else if stdenv.system == "i686-darwin"
then snapshotHashDarwin686
else if stdenv.system == "x86_64-darwin"
then snapshotHashDarwin64
else abort "no snapshot for platform ${stdenv.system}";
snapshotName = "rust-stage0-${snapshotDate}-${snapshotRev}-${platform}-${snapshotHash}.tar.bz2";
in
stdenv.mkDerivation {
inherit name;
inherit version;
inherit meta;
src = if isRelease then
fetchzip {
url = "http://static.rust-lang.org/dist/rustc-${version}-src.tar.gz";
sha256 = srcSha;
}
else
fetchgit {
url = https://github.com/rust-lang/rust;
rev = srcRev;
sha256 = srcSha;
};
# We need rust to build rust. If we don't provide it, configure will try to download it.
snapshot = stdenv.mkDerivation {
name = "rust-stage0";
src = fetchurl {
url = "http://static.rust-lang.org/stage0-snapshots/${snapshotName}";
sha1 = snapshotHash;
};
dontStrip = true;
installPhase = ''
mkdir -p "$out"
cp -r bin "$out/bin"
'' + (if stdenv.isLinux then ''
patchelf --interpreter "${stdenv.glibc}/lib/${stdenv.cc.dynamicLinker}" \
--set-rpath "${stdenv.cc.cc}/lib/:${stdenv.cc.cc}/lib64/" \
"$out/bin/rustc"
'' else "");
};
configureFlags = configureFlags
++ [ "--enable-local-rust" "--local-rust-root=$snapshot" ]
++ stdenv.lib.optional (stdenv.cc ? clang) "--enable-clang";
inherit patches;
postPatch = ''
substituteInPlace src/librustc_trans/back/link.rs \
--subst-var-by "ccPath" "${stdenv.cc}/bin/cc"
substituteInPlace src/librustc_back/archive.rs \
--subst-var-by "arPath" "${stdenv.cc.binutils}/bin/ar"
substituteInPlace src/rust-installer/gen-install-script.sh \
--replace /bin/echo "${coreutils}/bin/echo"
substituteInPlace src/rust-installer/gen-installer.sh \
--replace /bin/echo "${coreutils}/bin/echo"
'';
buildInputs = [ which file perl curl python27 makeWrapper git valgrind procps ];
enableParallelBuilding = true;
outputs = [ "out" "doc" ];
preCheck = "export TZDIR=${tzdata}/share/zoneinfo";
doCheck = true;
}