prompt.sh

#
# Thanks:
# @gf3
# @mathiasbynens
#

if [[ $COLORTERM = gnome-* && $TERM = xterm ]] && infocmp gnome-256color >/dev/null 2>&1; then
  export TERM=gnome-256color
elif [[ $TERM != dumb ]] && infocmp xterm-256color >/dev/null 2>&1; then
  export TERM=xterm-256color
fi

# set window title for xterm-a-likes
case $TERM in
        xterm* | rxvt* )
                XTITLE="\[\e]0;\u@\h (\w)\a\]" ;;
        * )
                XTITLE="" ;;
esac

if tput setaf 1 &>/dev/null; then
  tput sgr0
  if [[ $(tput colors) -ge 256 ]] 2>/dev/null; then
    MAGENTA=$(tput setaf 9)
    ORANGE=$(tput setaf 172)
    GREEN=$(tput setaf 2)
    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

parse_git_dirty() {
  [[ $(git status 2>/dev/null | tail -n1 | cut -c 1-17) != "nothing to commit" ]] && echo "*"
}

parse_git_branch() {
  git branch --no-color 2>/dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/\1$(parse_git_dirty)/"
}

export PS1="$XTITLE""\[${BOLD}${MAGENTA}\]\u \[$WHITE\]@ \[$ORANGE\]\h \[$WHITE\]in \[$GREEN\]\w\[$WHITE\]\$([[ -n \$(git branch 2> /dev/null) ]] && echo \" on \")\[$PURPLE\]\$(parse_git_branch)\[$WHITE\]\n\$ \[$RESET\]"
export PS2="\[$ORANGE\]→ \[$RESET\]"