Adds current kubernetes cluster to bash prompt

.bash_profile

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;

prompt_kubectl() {
    local contextName='';

    if [ $(kubectl config current-context &>/dev/null; echo "${?}") == '0' ]; then
        contextName="$(kubectl config current-context 2> /dev/null)"

        echo -e "${1}k8s: ${white}${contextName}";
    fi;
}

if tput setaf 1 &> /dev/null; then
    tput sgr0; # reset colors
    bold=$(tput bold);
    reset=$(tput sgr0);
    # Solarized colors, taken from http://git.io/solarized-colors.
    black=$(tput setaf 0);
    blue=$(tput setaf 33);
    cyan=$(tput setaf 37);
    green=$(tput setaf 64);
    orange=$(tput setaf 166);
    purple=$(tput setaf 125);
    red=$(tput setaf 124);
    violet=$(tput setaf 61);
    white=$(tput setaf 15);
    yellow=$(tput setaf 136);
else
    bold='';
    reset="\e[0m";
    black="\e[1;30m";
    blue="\e[1;34m";
    cyan="\e[1;36m";
    green="\e[1;32m";
    orange="\e[1;33m";
    purple="\e[1;35m";
    red="\e[1;31m";
    violet="\e[1;35m";
    white="\e[1;37m";
    yellow="\e[1;33m";
fi;


# Set the terminal title to the current working directory.

PS1+="${violet}[\$(prompt_kubectl \"${cyan}\")${violet}]\n\[${white}\]\u@\h\$ \[${reset}\]"; # Git repository details
PS1+="\[${white}\]\u@\h\ \[${reset}\]"