Re: [BuildStream] Cache key instability

[Jürg Billeter <j bitron ch>]

Hi Daniel,

On Thu, 2019-02-14 at 11:09 +0000, Daniel Silverstone via BuildStream-list wrote:
> I propose that we rev the cache key version, and switch from pickling to JSON
> (though I'd entertain a ruamel dump too if that's quick enough) and am seeking
> support for this.  Indeed I intend to file an MR when I have written and tested
> a change to use the built-in JSON implementation providing it isn't a
> *significant* performance impact short-term to do so.

Makes sense to me. Please note that I'm planning to merge !1140
relatively soon, which also revs the artifact version. It would be nice
to merge the JSON MR soon after to avoid imposing too frequent rebuilds
for users tracking master.

Cheers,
Jürg