Git Prompt

git-prompt

# For better git prompts
c_cyan=`tput setaf 6`
c_red=`tput setaf 1`
c_green=`tput sgr0 ; tput setaf 2`
c_sgr0=`tput sgr0`
 
branch_color ()
{
  if git rev-parse --git-dir >/dev/null 2>&1
  then
    git_status="$(git status 2> /dev/null)"
    color=""
    if [[ ${git_status} =~ "working directory clean" ]]; then
        color="${c_green}"
    else
        color=${c_red}
    fi
  else
    return 0
  fi
  echo -ne $color
}
 
parse_git_bullet ()
{
  if git rev-parse --git-dir >/dev/null 2>&1
  then
    git_status="$(git status 2> /dev/null)"
    branch_pattern="^# On branch ([^${IFS}]*)"
    if [[ ${git_status} =~ ${branch_pattern} ]]; then
      branch=${BASH_REMATCH[1]}
      echo "•"
    fi
  else
      return 0
  fi
}
 
parse_git_branch ()
{
  if git rev-parse --git-dir >/dev/null 2>&1
  then
    git_status="$(git status 2> /dev/null)"
    branch_pattern="^# On branch ([^${IFS}]*)"
    if [[ ${git_status} =~ ${branch_pattern} ]]; then
      branch=${BASH_REMATCH[1]}
      echo " (${branch} "
    fi
  else
    return 0
  fi
}
 
parse_git_remote ()
{
  if git rev-parse --git-dir >/dev/null 2>&1
  then
    git_status="$(git status 2> /dev/null)"
    branch_pattern="^# On branch ([^${IFS}]*)"
    remote_pattern="# Your branch is (.*) of"
    diverge_pattern="# Your branch and (.*) have diverged"
    # add an else if or two here if you want to get more specific
    if [[ ${git_status} =~ ${remote_pattern} ]]; then
      if [[ ${BASH_REMATCH[1]} == "ahead" ]]; then
        remote="↑"
      elif [ ${BASH_REMATCH[1]} == "behind" ]]; then
        remote="↓"
      fi
    fi
    if [[ ${git_status} =~ ${diverge_pattern} ]]; then
      remote="↕"
    fi
    if [[ ${git_status} =~ ${branch_pattern} ]]; then
      branch=${BASH_REMATCH[1]}
      
      echo "${remote})"
    fi
  else
    return 0
  fi
}
 
function prompt
{
local WHITE="\[\033[1;37m\]"
local PURPLE="\[\033[0;35m\]"
local GRAY="\[\033[0;37m\]"
local DARK_GRAY="\[\033[1;30m\]"
local BLUE="\[\033[0;34m\]"
local bul="\342\200\242"
export PS1="${PURPLE}\w"'\[${c_sgr0}\]$(parse_git_branch)\[$(branch_color)\]$(parse_git_bullet)\[${c_sgr0}\]$(parse_git_remote)'"${GRAY}$ "
}
prompt