package gim-nix and document it

1 files changed, 23 insertions, 0 deletions

diff --git a/pkgs/tools/package-management/gem-nix/default.nix b/pkgs/tools/package-management/gem-nix/default.nix
new file mode 100644
index 000000000000..de5f3a9e0444
--- /dev/null
+++ b/pkgs/tools/package-management/gem-nix/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, rubygems, rubyLibs, ruby, makeWrapper }:
+
+stdenv.mkDerivation rec {
+  name = "gem-nix";
+
+  buildInputs = [ ruby rubygems rubyLibs.nix makeWrapper ];
+
+  phases = ["installPhase"];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    echo 'exec ${rubygems}/bin/gem nix "$@"' >> $out/bin/gem-nix
+    chmod +x $out/bin/gem-nix
+    wrapProgram $out/bin/gem-nix \
+      --set GEM_PATH $GEM_PATH
+  '';
+
+  meta = with stdenv.lib; {
+    description = "gem nix command in a nice wrapper";
+    platforms = platforms.linux;
+    maintainers = [ maintainers.iElectric ];
+  };
+}