rpi bash prompt

.bash_prompt

# @gf3’s Sexy Bash Prompt, inspired by “Extravagant Zsh Prompt”
# Shamelessly copied from https://github.com/gf3/dotfiles

default_username='unknown'
OSNAME="HypriotOS: "
PROMPTCHAR=''

# determine OS type
if [ "$(uname -s)" = Darwin ]; then
  OSNAME="OSX: "
  PROMPTCHAR="🐳 "
elif [ "$(uname -m)" = armv6l ]; then
  OSNAME="HypriotOS/armv6: "
elif [ "$(uname -m)" = armv7l ]; then
  OSNAME="HypriotOS/armv7: "
elif [ "$(uname -m)" = aarch64 ]; then
  OSNAME="HypriotOS/arm64: "
else
  OSNAME="HypriotOS: "
fi

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

if tput setaf 1 &> /dev/null; then
  tput sgr0
  if [[ $(tput colors) -ge 256 ]] 2>/dev/null; then
    CYAN=$(tput setaf 6)
    BLUE=$(tput setaf 4)
    MAGENTA=$(tput setaf 9)
    ORANGE=$(tput setaf 172)
    GREEN=$(tput setaf 70)
    PURPLE=$(tput setaf 141)
  else
    CYAN=$(tput setaf 6)
    BLUE=$(tput setaf 4)
    MAGENTA=$(tput setaf 5)
    ORANGE=$(tput setaf 3)
    GREEN=$(tput setaf 2)
    PURPLE=$(tput setaf 1)

  fi
  BOLD=$(tput bold)
  RESET=$(tput sgr0)
  else
    BLUE="\033[1;34m"
    MAGENTA="\033[1;31m"
    ORANGE="\033[1;33m"
    GREEN="\033[1;32m"
    PURPLE="\033[1;35m"
    BOLD=""
    RESET="\033[m"
  fi


function git_info() {
  # check if we're in a git repo
  git rev-parse --is-inside-work-tree &>/dev/null || return

  # quickest check for what branch we're on
  branch=$(git symbolic-ref -q HEAD | sed -e 's|^refs/heads/||')

  # check if it's dirty (via github.com/sindresorhus/pure)
  dirty=$(git diff --quiet --ignore-submodules HEAD &>/dev/null; [ $? -eq 1 ]&& echo -e "*")

  echo "$RESET$BOLD on $PURPLE$branch$dirty"
}

# Only show username/host if not default
function usernamehost() {
  if [ "$USER" != $default_username ]; then
    echo "${BLUE}${OSNAME}${BLUE}$USER${RESET}${BOLD}@${CYAN}$HOSTNAME${RESET}${BOLD} in ";
  else
    echo "${BLUE}${OSNAME}";
  fi
}

# iTerm Tab and Title Customization and prompt customization
# http://sage.ucsc.edu/xtal/iterm_tab_customization.html

# Put the string " [bash]   hostname::/full/directory/path"
# in the title bar using the command sequence
# \[\e]2;[bash]   \h::\]$PWD\[\a\]

# Put the penultimate and current directory
# in the iterm tab
# \[\e]1;\]$(basename $(dirname $PWD))/\W\[\a\]



PS1="\[\e]2;$PWD\[\a\]\[\e]1;\]$(basename "$(dirname "$PWD")")/\W\[\a\]${BOLD}$(usernamehost)\[$GREEN\]\w\[$RESET\]\[$BOLD\]\n${PROMPTCHAR} \[$RESET\]"