cool_prompt

#showing git branches in bash prompt
function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'
}

##################################################
# Fancy PWD display function
##################################################
# The home directory (HOME) is replaced with a ~
# The last pwdmaxlen characters of the PWD are displayed
# Leading partial directory names are striped off
# /home/me/stuff          -> ~/stuff               if USER=me
# /usr/share/big_dir_name -> ../share/big_dir_name if pwdmaxlen=20
##################################################
bash_prompt_command() {
    local LAST_CMD_EXIT=$?      # this must be the first line in the function

    local NONE='\[\033[0m\]'    # unsets color to term's fg color

    # regular colors
    local K='\[\033[0;30m\]'    # black
    local R='\[\033[0;31m\]'    # red
    local G='\[\033[0;32m\]'    # green
    local Y='\[\033[0;33m\]'    # yellow
    local B='\[\033[0;34m\]'    # blue
    local M='\[\033[0;35m\]'    # magenta
    local C='\[\033[0;36m\]'    # cyan
    local W='\[\033[0;37m\]'    # white

    # empahsized (bolded) colors
    local EMK='\[\033[1;30m\]'
    local EMR='\[\033[1;31m\]'
    local EMG='\[\033[1;32m\]'
    local EMY='\[\033[1;33m\]'
    local EMB='\[\033[1;34m\]'
    local EMM='\[\033[1;35m\]'
    local EMC='\[\033[1;36m\]'
    local EMW='\[\033[1;37m\]'

    # background colors
    local BGK='\[\033[40m\]'
    local BGR='\[\033[41m\]'
    local BGG='\[\033[42m\]'
    local BGY='\[\033[43m\]'
    local BGB='\[\033[44m\]'
    local BGM='\[\033[45m\]'
    local BGC='\[\033[46m\]'
    local BGW='\[\033[47m\]'

    local UC=$C                 # user's color
    [ $UID -eq "0" ] && UC=$R   # root's color

    # How many characters of the $PWD should be kept
    local pwdmaxlen=25
    # Indicate that there has been dir truncation
    local trunc_symbol=".."
    local dir=${PWD##*/}
    pwdmaxlen=$(( ( pwdmaxlen < ${#dir} ) ? ${#dir} : pwdmaxlen ))
    NEW_PWD=${PWD/#$HOME/~}
    local pwdoffset=$(( ${#NEW_PWD} - pwdmaxlen ))
    if [ ${pwdoffset} -gt "0" ]
    then
        NEW_PWD=${NEW_PWD:$pwdoffset:$pwdmaxlen}
        NEW_PWD=${trunc_symbol}/${NEW_PWD#*/}
    fi

    if [ $LAST_CMD_EXIT == 0 ]; then
        STATUS_COLOR="${G}✓${NONE}";
        STATUS="✓";
    else
        STATUS_COLOR="${R}✕${NONE}";
        STATUS="✕";
    fi;

    # Change the window title of X terminals
    case ${TERM} in
        xterm*|rxvt|Eterm|aterm|rxvt-unicode)
        echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\007"
        #export PS1='\[\033[01;36m\]\u@\h \[\033[01;34m\]\w \$ \[\033[00m\]'
	    ;;
    screen)
        echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/$HOME/~}\033\\"
        #export PS1='\[\033[01;34m\]\u@\h \[\033[01;36m\]\w \$ \[\033[00m\]'
        ;;
    esac

	if [ $PROMPT_TYPE == 'xterm' ]; then
        PS1="${STATUS_COLOR} ${EMK}[${M}\${NEW_PWD}${EMK} ${EMK}node $(node -v)]${UC}\\$ ${NONE}\[\033]0;\u@\h \w\007\]${EMB}\$(parse_git_branch)"
	elif [ $PROMPT_TYPE == 'console' ]; then
        PS1="${STATUS_COLOR} ${EMK}[${M}\${NEW_PWD}${EMK} ${EMK}node $(node -v)]${UC} ${EMB}\$(parse_git_branch) ${W}$ ${NONE}"
	else
        PS1="${STATUS} [\u@\h \${NEW_PWD}] \$(parse_git_branch)\\$"
	fi
    # without colors: PS1="${STATUS} [\u@\h \${NEW_PWD}]\\$ "
    # extra backslash in front of \$ to make bash colorize the prompt

	history -a
}

PROMPT_TYPE=plain

if [ "$PS1" ]; then
    PROMPT_TYPE=console
    PROMPT_COMMAND=bash_prompt_command
fi