Re: [PATCH v3 08/24] tests/functional: add a module for handling asset download & caching

["Daniel P. Berrangé" <berrange@redhat.com>]

On Fri, Aug 02, 2024 at 07:51:14AM +1000, Richard Henderson wrote:
> On 7/31/24 03:03, Daniel P. Berrangé wrote:
> > +    def __init__(self, url, hash):
> > +        self.url = url
> > +        self.hash = hash
> > +        self.cache_dir = Path(Path("~").expanduser(),
> > +                              ".cache", "qemu", "download")
> > +        self.cache_file = Path(self.cache_dir,
> > +                               hashlib.sha256(url.encode("utf-8")).hexdigest())
> 
> Out of curiosity, why are we hashing the url from which we downloaded?
> Why not use the known hash of the contents?
> 
> If a url goes stale, and we adjust the url to a new host, we shouldn't need
> to re-download just because the url changed.

Hmmm, good point, will change it. 

With regards,
Daniel
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