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+FOUND_RBENV=0

+for rbenvdir in "$HOME/.rbenv" "/usr/local/rbenv" "/opt/rbenv" ; do

+  if [ -d $rbenvdir/bin -a $FOUND_RBENV -eq 0 ] ; then

+    FOUND_RBENV=1

+    export RBENV_ROOT=$rbenvdir

+    export PATH=${rbenvdir}/bin:$PATH

+    eval "$(rbenv init -)"

+

+    alias rubies="rbenv versions"

+    alias gemsets="rbenv gemset list"

+

+    function current_ruby() {

+      echo "$(rbenv version-name)"

+    }

+

+    function current_gemset() {

+      echo "$(rbenv gemset active 2&>/dev/null | sed -e ":a" -e '$ s/\n/+/gp;N;b a') | head -n1"

+    }

+

+    function gems {

+      local rbenv_path=$(rbenv prefix)

+      gem list $@ | sed \

+        -Ee "s/\([0-9\.]+( .+)?\)/$fg[blue]&$reset_color/g" \

+        -Ee "s|$(echo $rbenv_path)|$fg[magenta]\$rbenv_path$reset_color|g" \

+        -Ee "s/$current_ruby@global/$fg[yellow]&$reset_color/g" \

+        -Ee "s/$current_ruby$current_gemset$/$fg[green]&$reset_color/g"

+    }

+

+    function rbenv_prompt_info() {

+      if [[ -n $(current_gemset) ]] ; then

+        echo "$(current_ruby)@$(current_gemset)"

+      else

+        echo "$(current_ruby)"

+      fi

+    }

+  fi

+done

+unset rbenvdir

+

+if [ $FOUND_RBENV -eq 0 ] ; then

+  alias rubies='ruby -v'

+  function gemsets() { echo 'not supported' }

+  function rbenv_prompt_info() { echo "system: $(ruby -v | cut -f-2 -d ' ')" }

+fi