git PS1 hack

gistfile1.sh

if tput setaf 1 &> /dev/null; then
  if [[ $(tput colors) -ge 256 ]] 2>/dev/null; then
    MAGENTA=$(tput setaf 9)
    ORANGE=$(tput setaf 172)
    GREEN=$(tput setaf 190)
    PURPLE=$(tput setaf 141)
    WHITE=$(tput setaf 0)
  else
    MAGENTA=$(tput setaf 5)
    ORANGE=$(tput setaf 4)
    GREEN=$(tput setaf 2)
    PURPLE=$(tput setaf 1)
    WHITE=$(tput setaf 7)
  fi
  BOLD=$(tput bold)
  RESET=$(tput sgr0)
else
  MAGENTA="\033[1;31m"
  ORANGE="\033[1;33m"
  GREEN="\033[1;32m"
  PURPLE="\033[1;35m"
  WHITE="\033[1;37m"
  BOLD=""
  RESET="\033[m"
fi

export MAGENTA
export ORANGE
export GREEN
export PURPLE
export WHITE
export BOLD
export RESET

function is_on_git() {
  git rev-parse 2> /dev/null
}

function parse_git_dirty() {
  [[ $(git status 2> /dev/null | tail -n1) != *"working directory clean"* ]] && echo "±"
}

function parse_git_branch() {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/\1$(parse_git_dirty)/"
}
export PS1="\[${ORANGE}\][\[${BOLD}${MAGENTA}\]\u@\h \[${GREEN}\]\w\[${BOLD}\]\$(is_on_git && [[ -n \$(git branch 2> /dev/null) ]] && echo \":\")\[${PURPLE}\]\$(parse_git_branch)\[${RESET}\]\[${ORANGE}\]]\[${RESET}\]# "

# If not running interactively, do not do anything
[[ $- != *i* ]] && return