6bab89a47912b0ff822974788acb4daf3cb280ab

 1diff --git a/plugins/rbenv/rbenv.plugin.zsh b/plugins/rbenv/rbenv.plugin.zsh
 2new file mode 100644
 3index 0000000000000000000000000000000000000000..ae37404cd8328ab621cb4f8ab804cc143efbe9c0
 4--- /dev/null
 5+++ b/plugins/rbenv/rbenv.plugin.zsh
 6@@ -0,0 +1,44 @@
 7+FOUND_RBENV=0
 8+for rbenvdir in "$HOME/.rbenv" "/usr/local/rbenv" "/opt/rbenv" ; do
 9+  if [ -d $rbenvdir/bin -a $FOUND_RBENV -eq 0 ] ; then
10+    FOUND_RBENV=1
11+    export RBENV_ROOT=$rbenvdir
12+    export PATH=${rbenvdir}/bin:$PATH
13+    eval "$(rbenv init -)"
14+
15+    alias rubies="rbenv versions"
16+    alias gemsets="rbenv gemset list"
17+
18+    function current_ruby() {
19+      echo "$(rbenv version-name)"
20+    }
21+
22+    function current_gemset() {
23+      echo "$(rbenv gemset active 2&>/dev/null | sed -e ":a" -e '$ s/\n/+/gp;N;b a' | head -n1)"
24+    }
25+
26+    function gems {
27+      local rbenv_path=$(rbenv prefix)
28+      gem list $@ | sed \
29+        -Ee "s/\([0-9\.]+( .+)?\)/$fg[blue]&$reset_color/g" \
30+        -Ee "s|$(echo $rbenv_path)|$fg[magenta]\$rbenv_path$reset_color|g" \
31+        -Ee "s/$current_ruby@global/$fg[yellow]&$reset_color/g" \
32+        -Ee "s/$current_ruby$current_gemset$/$fg[green]&$reset_color/g"
33+    }
34+
35+    function rbenv_prompt_info() {
36+      if [[ -n $(current_gemset) ]] ; then
37+        echo "$(current_ruby)@$(current_gemset)"
38+      else
39+        echo "$(current_ruby)"
40+      fi
41+    }
42+  fi
43+done
44+unset rbenvdir
45+
46+if [ $FOUND_RBENV -eq 0 ] ; then
47+  alias rubies='ruby -v'
48+  function gemsets() { echo 'not supported' }
49+  function rbenv_prompt_info() { echo "system: $(ruby -v | cut -f-2 -d ' ')" }
50+fi