My ~/.bash_prompt script. 20170707

.bash_prompt

#
# ~/.bash_prompt
#
# Call this file from ~/.bashrc or ~/.bash_profile with
#    source ~/.bash_prompt#
#
# Required Bash version 4.x or above
# Works on OSX, Linux and Cygwin

# Prints the git branch (if any)
function git_branch {
  if which git &> /dev/null  ; then
    git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/' 
  fi
}

# Colourizes the branch text based on status
function markup_git_branch {
  local RED="\[\033[0;31m\]"
  local YELLOW="\[\033[0;33m\]"
  local NORMAL="\[\033[00m\]"
  if [[ "x$1" = "x" ]]; then
    #echo -e "[$1]"
    echo ""
  else
    if [[ $(git status 2> /dev/null | tail -n1) = "nothing to commit, working tree clean" ]]; then
      echo -e '\033[1;33m['"$1"']\033[0;0m'
    else
      echo -e '\033[1;31m['"$1"'*]\033[0;0m'
    fi
  fi
}

# Prompt 
#    Colours
#    30m - Black
#    31m - Red
#    32m - Green
#    33m - Yellow
#    34m - Blue
#    35m - Purple
#    36m - Cyan
#    37m - White
#    0 - Normal
#    1 - Bold
function bash_prompt {
  local BLACK="\[\033[0;30m\]"
  local BLACKBOLD="\[\033[1;30m\]"
  local RED="\[\033[0;31m\]"
  local REDBOLD="\[\033[1;31m\]"
  local GREEN="\[\033[0;32m\]"
  local GREENBOLD="\[\033[1;32m\]"
  local YELLOW="\[\033[0;33m\]"
  local YELLOWBOLD="\[\033[1;33m\]"
  local BLUE="\[\033[0;34m\]"
  local BLUEBOLD="\[\033[1;34m\]"
  local PURPLE="\[\033[0;35m\]"
  local PURPLEBOLD="\[\033[1;35m\]"
  local CYAN="\[\033[0;36m\]"
  local CYANBOLD="\[\033[1;36m\]"
  local WHITE="\[\033[0;37m\]"
  local WHITEBOLD="\[\033[1;37m\]"
  local NORMAL="\[\033[00m\]"

  export PS1="${BLUE}[\D{%Y%m%d %k:%M}]${NORMAL} ${CYAN}[\!]${NORMAL} ${GREENBOLD}\u${NORMAL}@${GREENBOLD}\h${NORMAL}:${CYAN}\w${NORMAL} \$(markup_git_branch \$(git_branch)) \\$ "
  # PS1='\u@\h:\w\$ '

  if [ "$SSH_CONNECTION" ]; then
    export PS1="${REDBOLD}(remote)${NORMAL} ${BLUE}[\D{%Y%m%d %k:%M}]${NORMAL} ${CYAN}[\!]${NORMAL} ${GREENBOLD}\u${NORMAL}@${GREENBOLD}\h${NORMAL}:${CYAN}\w${NORMAL} \\$ "
  fi
}

bash_prompt