Re: [OE-core] cleansstate

["Richard Purdie" <richard.purdie@linuxfoundation.org>]

On Mon, 2020-08-24 at 23:05 +0200, Rasmus Villemoes wrote:
> On 22/08/2020 09.27, Richard Purdie via lists.openembedded.org wrote:
> > On Fri, 2020-08-21 at 17:32 -0700, Tom King wrote:
> > > What would be a use case for cleanstate?
> > 
> > I never really wanted to add it at all. There is/was some case for
> > wanting to remove sstate objects and ensure something really does
> > rebuild from source. When sstate was new and had more issues,
> > people
> > really wanted it and I was pushed into having it exist.
> > 
> > I understand why people want it although it should never really
> > need to
> > be used.
> 
> Well, except when you discover that your sstate is effectively
> corrupted/polluted by objects that happen to have the same hashes as
> those computed from current recipes, but the build artifacts
> would/should be different. Such as when using a file://foo/* glob
> pattern in SRC_URI.

Where such issues are reported, we do try and fix them. I hadn't quite
connected that the globbing issue was actually breaking sstate hashes,
that is more worrying :(

> 
> Richard, I'm still hoping you'd respond in the
> https://lists.openembedded.org/g/openembedded-core/topic/75235594
> thread. As I see it, half-way supporting glob patterns in file://
> URIs is a giant footgun.

My leaning is to remove them. You can just do file://foo and I think
that actually works?

The globs are horrible for a lot of different reasons.

Cheers,

Richard