(function node() {
    apps.readMethod = function node_apps_readMethod(diff) {
        if (options.source === "") {
            apps.errout([
                `Pretty Diff requires option ${
                    text.cyan
                }source${
                    text.none
                } when using command ${
                    text.green + command + text.none
                }. Example:`,
                `${
                    text.cyan
                }prettydiff ${command} source:"myFile.js"${
                    text.none
                }`
            ]);
            return;
        }
    };
}());