Wine and mingw-w64 cooperation

[Francois Gouget]

On Mon, 3 Jun 2019, Jacek Caban wrote:
[...]
> Here is how I imagine TestBot could look do:
> 
> 1. Accept mingw-w64 patches (like it currently does for Wine patches)
> 
> 2. Build a compiler toolchain
> 
> This is scripted in many places, so it shouldn't be too hard to automate. We
> could probably start with the most common configuration.
> 
> Francois, how does that sound?

That's probably doable but it will require quite a few TestBot 
modifications.

* The TestBot will need to know how to deal with multiple repositories. 
  We need that for Wine anyway and I even have some incomplete patches 
  for it.

* It will need to be able to identify whether a patch is against Wine or 
  mingw-w64 which is related to the previous point.

* The TestBot normally analyses the test results to identify failures. 
  That's in part necessary for Wine to distinguish new test failures 
  from old ones. Presumably mingw-w64 has tests that actually pass so 
  simply bypassing these checks and just looking at the process exit 
  code would be enough.

* We may want separate pages for Wine's jobs and the mingw-w64 ones.

* The job submission page would likely need to offer different 
  options for mingw-w64 patches than for Wine ones. For instance if we 
  run mingw-w64 on Windows, those Windows VMs would need to have 
  mingw-w64 installed which the Wine test VMs should not have. So we'd 
  want to offer testing on a different set of VMs for mingw-w64 patches 
  that for Wine ones.


That's one thing that separates the TestBot from other CI systems: it's 
not generic so where other CI systems just need to be configured for a 
new project, to some extent, the TestBot needs to be patched through and 
through.


> 3. Build a few projects - to make sure they build.
> 
> Wine, Wine Gecko, VLC should give a good coverage.

That sounds like long running tasks so we will likely need new hardware 
so the TestBot can run them for every patch that gets submitted: if 
patches come at a rate of about one per hour, then the TestBot needs to 
process the resulting jobs at a rate of at least one per hour. That said 
we already need new hardware for PCI-passthrough for Wine (though the 
exact details are not set yet).


-- 
Francois Gouget <fgouget at free.fr>              http://fgouget.free.fr/
      Any sufficiently advanced bug is indistinguishable from a feature.
                            -- from some indian guy