Comment by bitpush a day ago
Are you confused between open source and open development?
Isn't the source fully open?
Edit:
If I made a movie, and made the files freely available after I make it and let you do whatever you want with it
.. would you insist that it isn't "open" because you didn't see me argue with my editor or the 100 times I iterates on the end scene or whether your idea for chase sequence was not incorporated?
You can't even install the resulting binaries of an opensource Android build on a phone because of gaps. And even if you could (or fill in the gaps) Google poisoned the ecosystem by ensuring almost all Android apps require Google Play services. Which aren't open source and you realistically need for all Android apps.
So no, Google made sure there is no open source Android. There are just some (incomplete) source dumps.
It sure is. Open source doesn't require open development model or even taking outside contributions. It simply requires that you have access to the source and can do things like fork it, which you absolutely can with Android. I think people android to be more like Linux, but that's a very difficult arrangement and has tradeoffs.
Open Source requires buildable code: <https://news.ycombinator.com/item?id=43779597>
Free Software Foundation General Public License version 2:
The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable.
<https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
That's generally interpreted to mean that the build environment or build system is included in the requirements of the licence. This is included in FSF's Free Software Definition as well:
<https://www.gnu.org/philosophy/free-sw.html>
OSI's Open Source Definition includes substantively similar language:
The source code must be the preferred form in which a programmer would modify the program.
Answering your question then, no, source absent build prerequisites / systems does not satisfy either FSF's Free Software Definition or the subsequent Open Source Definition by the Open Source Initiative.
No they changed their development process to do it behind closed doors and release the code after final release.