Updated l theme to have rbenv support

themes/l/fish_right_prompt.fish

 # To show the right prompt please set
-# set fish_theme_l_right_prompt true (config.fish)
+# set theme_display_rbenv 'yes' (config.fish)
+# set theme_display_rbenv_gemset 'yes' (config.fish)
 
-if test "$fish_theme_l_right_prompt" = true
-
-  function _ruby_version
-    echo (command rbenv version-name | sed 's/\n//')
-  end
+function _ruby_version
+  echo (command rbenv version-name | sed 's/\n//')
+end
 
-  function _ruby_gemset
-    echo (command rbenv gemset active ^/dev/null | sed -e 's| global||')
-  end
+function _ruby_gemset
+  echo (command rbenv gemset active ^/dev/null | sed -e 's| global||')
+end
 
-  function fish_right_prompt
+function fish_right_prompt
+  if [ "$theme_display_rbenv" = 'yes' ]
     set -l red (set_color red)
     set -l normal (set_color normal)
 
     set ruby_info $red(_ruby_version)
 
-    if [ (_ruby_gemset) ]
-      set -l ruby_gemset $red(_ruby_gemset)
-      set ruby_info "$ruby_info@$ruby_gemset"
+    if [ "$theme_display_rbenv_gemset" = 'yes' ]
+      if [ (_ruby_gemset) ]
+        set -l ruby_gemset $red(_ruby_gemset)
+        set ruby_info "$ruby_info@$ruby_gemset"
+      end
     end
 
     echo -n -s $ruby_info $normal
   end
-
 end

themes/l/readme.md

@@ -15,7 +15,8 @@ A theme inspired by [oh-my-zsh](https://github.com/robbyrussell/oh-my-zsh/blob/m
 Only if fish_theme_l_right_prompt variable is set true within config.fish
 
 ```fish
-set fish_theme_l_right_prompt true
+set theme_display_rbenv 'yes'
+set theme_display_rbenv_gemset 'yes'
 ```
 
 * Rbenv Ruby Version