Show me the part where say clearly that you must publish this code, when it is not finish or in development stage.
It's literally at the top off all the cgminer source code.
/*
* Copyright 2011-2017 Con Kolivas
* Copyright 2011-2015 Andrew Smith
* Copyright 2011-2012 Luke Dashjr
* Copyright 2010 Jeff Garzik
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 3 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
Here's a dumbed-down version on the GPL3 license:
https://tldrlegal.com/license/gnu-general-public-license-v3-(gpl-3)