Rework ruby gems

svn path=/nixpkgs/trunk/; revision=25654

1 files changed, 47 insertions, 0 deletions

diff --git a/pkgs/development/interpreters/ruby/rubygems.nix b/pkgs/development/interpreters/ruby/rubygems.nix
new file mode 100644
index 000000000000..1e037bb785c5
--- /dev/null
+++ b/pkgs/development/interpreters/ruby/rubygems.nix
@@ -0,0 +1,47 @@
+args : with args; 
+rec {
+
+  # some packages (eg ruby-debug) still require 1.8. So let's stick to that for
+  # now if nobody has different requirements
+
+  version = "1.4.1";
+  src = fetchurl {
+    url = "http://production.cf.rubygems.org/rubygems/${name}.tgz";
+    sha256 = "189wg1msb4sdjvdzv9ia6q3lvjlygpp67wlbkl7cjb22bpjy4w4b";
+  };
+
+
+  buildInputs = [ruby makeWrapper];
+  configureFlags = [];
+
+  doInstall = fullDepEntry (''
+    ruby setup.rb --prefix=$out/
+    wrapProgram $out/bin/gem --prefix RUBYLIB : $out/lib:$out/lib
+    find $out -type f -name "*.rb" | xargs sed -i "s@/usr/bin/env@$(type -p env)@g"
+    mkdir -pv $out/nix-support
+    cat > $out/nix-support/setup-hook <<EOF
+    export RUBYOPT=rubygems
+    addToSearchPath RUBYLIB $out/lib
+
+    addGemPath() {
+      addToSearchPath GEM_PATH \$1/${ruby.gemPath}
+    }
+
+    envHooks+=(addGemPath)
+    EOF'') ["minInit" "addInputs" "doUnpack" "defEnsureDir"];
+
+  /* doConfigure should be specified separately */
+  phaseNames = ["doPatch" "doInstall"];
+      
+  name = "rubygems-" + version;
+  meta = {
+    description = "Ruby gems package collection";
+    longDescription = ''
+      see comment in rubyLibs to get to know how to use ruby gems in nix
+    '';
+  };
+
+  # TODO don't resolve 302 redirects but make nix resolve in fetchurl and
+  # nix-prefetch-url. This should be done on stdenv-updates.
+  patches = [ ./gem_hook.patch /* see longDescription above */ ];
+}