build-utils.gradle

/**
 * Gets the site local IP address or localhost of none found
 *
 * @see <a href="http://jeremie-martinez.com/2015/05/05/inject-host-gradle/">
 *     Jeremie Martinez - Inject the host IP with Gradle</a>
 */
ext.getIP = { ->
    InetAddress result = null
    Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces()
    while (interfaces.hasMoreElements()) {
        Enumeration<InetAddress> addresses = interfaces.nextElement().getInetAddresses()
        while (addresses.hasMoreElements()) {
            InetAddress address = addresses.nextElement()
            if (!address.isLoopbackAddress()) {
                if (address.isSiteLocalAddress()) {
                    return address.getHostAddress()
                } else if (result == null) {
                    result = address
                }
            }
        }
    }
    return (result != null ? result : InetAddress.getLocalHost()).getHostAddress()
}