python virtualenv wrapper

mkvenv

function mkvenv () 
{ 
    VIRTUAL_ENV_HOME=~/.virtualenvs;
    case ${1} in 
        add)
            if [[ -d $VIRTUAL_ENV_HOME/$2 ]]; then
                echo "Virtual Env Directory exists!";
                exit 1;
            else
                python3 -m venv $VIRTUAL_ENV_HOME/$2;
            fi
        ;;
        list)
            ls -l ${VIRTUAL_ENV_HOME}/
        ;;
        del)
            if [[ -d $VIRTUAL_ENV_HOME/$2 ]]; then
                rm -rf $VIRTUAL_ENV_HOME/${2};
            else
                echo "Virtual Env Directory does not exists!";
                exit 1;
            fi
        ;;
        init)
            if [[ -d $VIRTUAL_ENV_HOME/$2 ]]; then
                source $VIRTUAL_ENV_HOME/$2/bin/activate;
            else
                echo "Virtual Env Directory does not exist!";
                exit 1;
            fi
        ;;
        *)
            echo "Usage: mkvenv {add|list|del|init} env"
        ;;
    esac
}