ruby: Add 2.1.6

pkgs/development/interpreters/ruby/ruby-2.1.6.nix

···
+{ stdenv, lib, fetchurl, fetchgit, fetchFromGitHub
+, zlib, zlibSupport ? true
+, openssl, opensslSupport ? true
+, gdbm, gdbmSupport ? true
+, ncurses, readline, cursesSupport ? true
+, groff, docSupport ? false
+, libyaml, yamlSupport ? true
+, libffi, fiddleSupport ? true
+, ruby_2_1_6, autoreconfHook, bison, useRailsExpress ? true
+}:
+
+let
+  op = stdenv.lib.optional;
+  ops = stdenv.lib.optionals;
+  patchSet = import ./rvm-patchsets.nix { inherit fetchFromGitHub; };
+  config = import ./config.nix fetchgit;
+  baseruby = ruby_2_1_6.override { useRailsExpress = false; };
+in
+
+stdenv.mkDerivation rec {
+  version = with passthru; "${majorVersion}.${minorVersion}.${teenyVersion}-p${patchLevel}";
+
+  name = "ruby-${version}";
+
+  src = if useRailsExpress then fetchFromGitHub {
+    owner  = "ruby";
+    repo   = "ruby";
+    rev    = "v2_1_6";
+    sha256 = "18kbjsbmgv6l3p1qxgmjnhh4jl7xdk3c20ycjpp62vrhq7pyzjsm";
+  } else fetchurl {
+    url = "http://cache.ruby-lang.org/pub/ruby/2.1/ruby-2.1.6.tar.gz";
+    sha256 = "1r4bs8lfwsypbcf8j2lpv3by40729vp5mh697njizj97fjp644qy";
+  };
+
+  # Have `configure' avoid `/usr/bin/nroff' in non-chroot builds.
+  NROFF = "${groff}/bin/nroff";
+
+  buildInputs = ops useRailsExpress [ autoreconfHook bison ]
+    ++ (op fiddleSupport libffi)
+    ++ (ops cursesSupport [ ncurses readline ])
+    ++ (op docSupport groff)
+    ++ (op zlibSupport zlib)
+    ++ (op opensslSupport openssl)
+    ++ (op gdbmSupport gdbm)
+    ++ (op yamlSupport libyaml)
+    # Looks like ruby fails to build on darwin without readline even if curses
+    # support is not enabled, so add readline to the build inputs if curses
+    # support is disabled (if it's enabled, we already have it) and we're
+    # running on darwin
+    ++ (op (!cursesSupport && stdenv.isDarwin) readline);
+
+  enableParallelBuilding = true;
+
+  # Fix a build failure on systems with nix store optimisation.
+  # (The build process attempted to copy file a overwriting file b, where a and
+  # b are hard-linked, which results in cp returning a non-zero exit code.)
+  # https://github.com/NixOS/nixpkgs/issues/4266
+  postUnpack = ''rm "$sourceRoot/enc/unicode/name2ctype.h"'';
+
+  patches = ops useRailsExpress [
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/01-zero-broken-tests.patch"
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/02-improve-gc-stats.patch"
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/03-display-more-detailed-stack-trace.patch"
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/04-show-full-backtrace-on-stack-overflow.patch"
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/05-funny-falcon-stc-density.patch"
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/06-funny-falcon-stc-pool-allocation.patch"
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/07-aman-opt-aset-aref-str.patch"
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/08-funny-falcon-method-cache.patch"
+    "${patchSet}/patches/ruby/2.1.6/railsexpress/09-heap-dump-support.patch"
+  ];
+
+  # Ruby >= 2.1.0 tries to download config.{guess,sub}
+  postPatch = ''
+    rm tool/config_files.rb
+    cp ${config}/config.guess tool/
+    cp ${config}/config.sub tool/
+  '';
+
+  configureFlags = ["--enable-shared" ]
+    ++ op useRailsExpress "--with-baseruby=${baseruby}/bin/ruby"
+    # on darwin, we have /usr/include/tk.h -- so the configure script detects
+    # that tk is installed
+    ++ ( if stdenv.isDarwin then [ "--with-out-ext=tk " ] else [ ]);
+
+  installFlags = stdenv.lib.optionalString docSupport "install-doc";
+  # Bundler tries to create this directory
+  postInstall = ''
+    # Bundler tries to create this directory
+    mkdir -pv $out/${passthru.gemPath}
+    mkdir -p $out/nix-support
+    cat > $out/nix-support/setup-hook <<EOF
+    addGemPath() {
+      addToSearchPath GEM_PATH \$1/${passthru.gemPath}
+    }
+
+    envHooks+=(addGemPath)
+    EOF
+  '' + lib.optionalString useRailsExpress ''
+    rbConfig=$(find $out/lib/ruby -name rbconfig.rb)
+
+    # Prevent the baseruby from being included in the closure.
+    sed -i '/^  CONFIG\["BASERUBY"\]/d' $rbConfig
+    sed -i "s|'--with-baseruby=${baseruby}/bin/ruby'||" $rbConfig
+  '';
+
+  meta = {
+    license = stdenv.lib.licenses.ruby;
+    homepage = "http://www.ruby-lang.org/en/";
+    description = "The Ruby language";
+    platforms = stdenv.lib.platforms.all;
+  };
+
+  passthru = rec {
+    majorVersion = "2";
+    minorVersion = "1";
+    teenyVersion = "6";
+    patchLevel = "0";
+    rubyEngine = "ruby";
+    libPath = "lib/${rubyEngine}/${majorVersion}.${minorVersion}.${teenyVersion}";
+    gemPath = "lib/${rubyEngine}/gems/${majorVersion}.${minorVersion}.${teenyVersion}";
+  };
+}

pkgs/top-level/all-packages.nix

···
   ruby_2_1_1 = lowPrio (callPackage ../development/interpreters/ruby/ruby-2.1.1.nix { });
   ruby_2_1_2 = lowPrio (callPackage ../development/interpreters/ruby/ruby-2.1.2.nix { });
   ruby_2_1_3 = lowPrio (callPackage ../development/interpreters/ruby/ruby-2.1.3.nix { });
+  ruby_2_1_6 = lowPrio (callPackage ../development/interpreters/ruby/ruby-2.1.6.nix { });
   ruby_2_2_0 = lowPrio (callPackage ../development/interpreters/ruby/ruby-2.2.0.nix { });
 
   # Ruby aliases
···
   ruby_1_8 = ruby_1_8_7;
   ruby_1_9 = ruby_1_9_3;
   ruby_2_0 = ruby_2_0_0;
-  ruby_2_1 = ruby_2_1_3;
+  ruby_2_1 = ruby_2_1_6;
   ruby_2_2 = ruby_2_2_0;
 
   rubygemsFun = ruby: builderDefsPackage (import ../development/interpreters/ruby/rubygems.nix) {