rake: init at 11.1.1

pkgs/development/tools/build-managers/rake/default.nix

@@ -0,0 +1,17 @@
+{ lib, bundlerEnv, ruby }:
+
+bundlerEnv {
+  name = "rake-11.1.1";
+
+  inherit ruby;
+  gemfile = ./Gemfile;
+  lockfile = ./Gemfile.lock;
+  gemset = ./gemset.nix;
+  
+  meta = with lib; {
+    description = "A software task management and build automation tool";
+    homepage = https://github.com/ruby/rake;
+    license  = with licenses; mit;
+    platforms = platforms.unix;
+  };
+}