Added a peepcode theme

themes/peepcode.zsh-theme

+#
+# Based on Geoffrey Grosenbach's peepcode zsh theme from
+# https://github.com/topfunky/zsh-simple
+#
+
+git_repo_path() {
+  git rev-parse --git-dir 2>/dev/null
+}
+
+git_commit_id() {
+  git rev-parse --short HEAD 2>/dev/null
+}
+
+git_mode() {
+  if [[ -e "$repo_path/BISECT_LOG" ]]; then
+    echo "+bisect"
+  elif [[ -e "$repo_path/MERGE_HEAD" ]]; then
+    echo "+merge"
+  elif [[ -e "$repo_path/rebase" || -e "$repo_path/rebase-apply" || -e "$repo_path/rebase-merge" || -e "$repo_path/../.dotest" ]]; then
+    echo "+rebase"
+  fi
+}
+
+git_dirty() {
+  if [[ "$repo_path" != '.' && `git ls-files -m` != "" ]]; then
+    echo " %{$fg_bold[grey]%}✗%{$reset_color%}"
+  fi
+}
+
+git_prompt() {
+  local cb=$(current_branch)
+  if [ -n "$cb" ]; then
+    local repo_path=$(git_repo_path)
+    echo " %{$fg_bold[grey]%}$cb %{$fg[white]%}$(git_commit_id)%{$reset_color%}$(git_mode)$(git_dirty)"
+  fi
+}
+
+local smiley="%(?,%{$fg[green]%}☺%{$reset_color%},%{$fg[red]%}☹%{$reset_color%})"
+
+PROMPT='
+%~
+${smiley}  %{$reset_color%}'
+
+RPROMPT='%{$fg[white]%} $(~/.rvm/bin/rvm-prompt)$(git_prompt)%{$reset_color%}'