Re: [PATCH v3 2/3] cirrus: Fixing and speedup the msys2/mingw CI

[Daniel P . Berrangé]

On Wed, Oct 07, 2020 at 10:18:48AM +0200, Paolo Bonzini wrote:
> On 07/10/20 05:51, Yonggang Luo wrote:
> > Using a prepared 
> > https://github.com/lygstate/qemu/releases/download/v5.1.0/msys2-x86_64.tar.xz
> > for speed up the msys2/mingw prepare speed on the cirrus CI.
> > This file are generated by the msys2.docker
> 
> The speedup is nice, but we need to be able to regenerate the tarball
> without access to a Windows machine.  Otherwise whoever adds a new
> dependency cannot test it himself with CI.
> 
> Ideally, the tarball would be generated by the containers job in the
> Gitlab CI, but I'm not sure if that's possible.

IMHO any caching should be integrated into the Cirrus CI job itself.
Cirrus has builtin support for caching the contents of a folder, so
the first time the job runs it should populate the cache, and that
can be used thereafter.

Regards,
Daniel
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