show your current branch name in shell prompt

gistfile1.txt

# show git branch name in the prommpt

function parse_git_branch {
  #git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
        git rev-parse --abbrev-ref HEAD 2> /dev/null | sed -e 's/\(.*\)/(\1)/'
}

function proml {
  local        BLUE="\[\033[0;34m\]"
  local         RED="\[\033[0;31m\]"
  local   LIGHT_RED="\[\033[1;31m\]"
  local       GREEN="\[\033[0;32m\]"
  local LIGHT_GREEN="\[\033[1;32m\]"
  local       WHITE="\[\033[1;37m\]"
  local  LIGHT_GRAY="\[\033[0;37m\]"
  case $TERM in
    xterm*)
    TITLEBAR='\[\033]0;\u@mac:\w\007\]'
    ;;  
    *)  
    TITLEBAR=""
    ;;  
  esac

PS1="${TITLEBAR}\
$BLUE[$RED\u@mac:\w$GREEN\$(parse_git_branch)$BLUE]\
$GREEN\$ $LIGHT_GRAY"
PS2='> '
PS4='+ '
}
proml