[mythtv] Java code for android.

Peter Bennett pb.mythtv at gmail.com
Mon May 6 14:19:44 UTC 2019

On 5/6/19 9:54 AM, Mark Spieth wrote:
> On 5/6/2019 9:59 AM, Gary Buhrmaster wrote:
>> On Sun, May 5, 2019 at 8:09 PM Peter Bennett <pb.mythtv at gmail.com> 
>> wrote:
>>> I think it is relevant because you want the code to be consistent after
>>> every commit. If there are dependent changes in java and C++ code they
>>> need to be committed together.
>> That is one of the use cases of git submodules
>> (with the push --recurse-submodules= option),
>> to insure that the remote repo(s) are consistent,
>> but I would certainly understand that submodules
>> is probably a bridge too far.
> I am beginning to agree with Peter, this should be part of the main 
> mythtv repo. This is a driver or part thereof.
> Its not C++ so cant go in the libs dir (or can it?) so another path 
> should be chosen for the java class path chosen.
> Questions to be answered:
> 1. should the manifest go there too?
That is probably a good idea. I think it would be best to aim for the 
packaging directory to be as stable as possible and keep the frequent 
changes all in the mythtv repository. It has already bitten me when I 
did a pull from mythtv and did a new build only to find it fail because 
I did not also pull from packaging.
> 2. all parts of platform source? or only the driver related bit(s)?
I suggest move the entire directory "android-package-source" to the 
mythtv repo.
> 3. how to handle variations in libs?
Maybe there could be a libs repository. Currently every person who 
builds could be using different lib versions and results could be 
unpredictable. A repo with already-compiled libs would also be very 
nice. The lib build process is somewhat error prone.
> 4. The build system is part build and part packaging. Does this 
> warrant splitting? Does this affect windows builds (OT maybe windows 
> can rely on linux subsystem and not care about a specific windows build)
There is no android build that works in the mythtv repository. This is a 
difference from all the other platforms, where the code can be built in 
the mythtv repository and packaged in the packaging repository. It may 
be possible to change that but it would be a lot of work and there is 
not much benefit since you cannot run mythtv on android without first 
packaging it.
> 5. should it be rewritten so that it implements the functioanlity in 
> C++ calling java where necessary as does the sles driver?
I considered this but it looked to become very messy and error prone. 
The way I did it is clean and easy.
> I will test and have a look at this tomorrow (I think).
> Mark
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