themes/doubletime/doubletime.theme.bash

#!/bin/bash
SCM_THEME_PROMPT_DIRTY=''
SCM_THEME_PROMPT_CLEAN=''
SCM_GIT_CHAR='${bold_cyan}±${normal}'
SCM_SVN_CHAR='${bold_cyan}⑆${normal}'
SCM_HG_CHAR='${bold_red}☿${normal}'
SCM_THEME_PROMPT_PREFIX=""
SCM_THEME_PROMPT_SUFFIX=""
RVM_THEME_PROMPT_PREFIX=" ("
RVM_THEME_PROMPT_SUFFIX=")"

doubletime_scm_prompt() {
  CHAR=$(scm_char)
  if [ $CHAR = $SCM_NONE_CHAR ]
  then
    return
  else
    echo "$(git_prompt_status)"
  fi
}

prompt_setter() {
  # Save history
  history -a
  history -c
  history -r
  PS1="
\t $(scm_char) [\[$blue\]\u@local\[$reset_color\]] \w
$(doubletime_scm_prompt)\[$reset_color\] $ "
  PS2='> '
  PS4='+ '
}

PROMPT_COMMAND=prompt_setter

git_prompt_status() {

  if [ -n "$(git status | grep 'Changes not staged' 2> /dev/null)" ]; then
    git_status="${bold_red}$(scm_prompt_info) ✗"
  elif [ -n "$(git status | grep 'Changes to be committed' 2> /dev/null)" ]; then
     git_status="${bold_yellow}$(scm_prompt_info) ^"
  elif [ -n "$(git status | grep 'Untracked files' 2> /dev/null)" ]; then
     git_status="${bold_cyan}$(scm_prompt_info) +"
  elif [ -n "$(git status | grep 'nothing to commit' 2> /dev/null)" ]; then
     git_status="${bold_green}$(scm_prompt_info) ${green}✓"
  else
    git_status="$(scm_prompt_info)"
  fi
  echo "[$git_status${normal}]"

}

# git_prompt_color() {
#
#   if [ -n "$(git status | grep 'Changes not staged' 2> /dev/null)" ]; then
#     git_status='${bold_red} ✗'
#   elif [ -n "$(git status | grep 'Changes to be committed' 2> /dev/null)" ]; then
#      git_status='${bold_yellow} ^'
#   elif [ -n "$(git status | grep 'Untracked files' 2> /dev/null)" ]; then
#      git_status='${bold_cyan} +'
#   else
#     git_status='${bold_green} ✓'
#   fi
#   echo $git_status
#
# }