# Set-up colours for message printing if we're not piping and terminal is

# capable of outputting the colors.

_color_terminal=$(tput colors 2>&1)

if [[ -t 1 ]] && (( ${_color_terminal} > 0 )); then

    _text_bold=$(tput bold)

    _text_white=$(tput setaf 7)

    _text_blue=$(tput setaf 6)

    _text_green=$(tput setaf 2)

    _text_yellow=$(tput setaf 3)

    _text_red=$(tput setaf 1)

    _text_reset=$(tput sgr0)

else

    _text_bold=""

    _text_white=""

    _text_blue=""

    _text_green=""

    _text_yellow=""

    _text_red=""

    _text_reset=""

fi

# Set-up functions for printing coloured messages.

function debug() {

    echo "${_text_bold}${_text_blue}[DEBUG]${_text_reset}" "$@"

}

function info() {

    echo "${_text_bold}${_text_white}[INFO] ${_text_reset}" "$@"

}

function success() {

    echo "${_text_bold}${_text_green}[OK]   ${_text_reset}" "$@"

}

function warning() {

    echo "${_text_bold}${_text_yellow}[WARN] ${_text_reset}" "$@"

}

function error() {

    echo "${_text_bold}${_text_red}[ERROR]${_text_reset}" "$@" >&2

}