Added risto theme and made git.zsh themable

 * git.zsh is now themable:
   * git_prompt_info() now will look in the following variables for
     formatting strings:
     * ZSH_THEME_GIT_PROMPT_PREFIX - Prefix for the prompt (before the
       branch name)
     * ZSH_THEME_GIT_PROMPT_SUFFIX - The very end of the prompt
     * ZSH_THEME_GIT_PROMPT_DIRTY - Displayed when the branch is dirty
     * ZSH_THEME_GIT_PROMPT_CLEAN - Displayed when the branch is clean
 * Updated geoffgarside, robbyrussell, and maran to work with new git
   theme
 * Added the Risto theme, which is very similar to a number of bash
   prompts, and allows me to use zsh in with out my co-workers knowing I
   have the advantage. Think of it as a ninja theme.

1 files changed, 13 insertions, 3 deletions

diff --git a/git.zsh b/git.zsh
index b8fd1f08e..591b77895 100644
--- a/git.zsh
+++ b/git.zsh
@@ -1,16 +1,26 @@
+#
+ZSH_THEME_GIT_PROMPT_PREFIX="git:("
+ZSH_THEME_GIT_PROMPT_SUFFIX=")"
+ZSH_THEME_GIT_PROMPT_DIRTY="*"
+ZSH_THEME_GIT_PROMPT_CLEAN=""
+
 # get the name of the branch we are on
 function git_prompt_info() {
   if [[ -d .git ]]; then
     ref=$(git symbolic-ref HEAD 2> /dev/null) || return
     branch=${ref#refs/heads/}
-    CURRENT_BRANCH="git:(%{$fg[red]%}${branch}%{$fg[blue]%})%{$reset_color%}$(parse_git_dirty)"
+    CURRENT_BRANCH="$ZSH_THEME_GIT_PROMPT_PREFIX${branch}$(parse_git_dirty)$ZSH_THEME_GIT_PROMPT_SUFFIX"
   else
     CURRENT_BRANCH=''
   fi
 
   echo $CURRENT_BRANCH
 }
-
 parse_git_dirty () {
-  [[ $(git status | tail -n1) != "nothing to commit (working directory clean)" ]] && echo " %{$fg[yellow]%}✗%{$reset_color%}"
+  if [[ $(git status  | tail -n1) != "nothing to commit (working directory clean)" ]]; then
+    echo "$ZSH_THEME_GIT_PROMPT_DIRTY"
+  else
+    echo "$ZSH_THEME_GIT_PROMPT_CLEAN"
+  fi
 }
+