Re: Dual cache key calculation and build planning modes

[Paul Sherwood <paul sherwood codethink co uk>]

Hi Tristan,
On 2017-07-05 10:05, Tristan Van Berkom wrote:
> Premise
> ~~~~~~~
> The premise is simply that every element has 2 cache keys generated at
> all times.

I haven't had chance to follow all of the detail here, but isn't your 
'weak' key just a hash of a subset of the same factors in for your 
'strong' key?

In which case, would it be simpler and better to have one key which 
combines both?

foo.<hash(weak-factors)>.<hash(strong-factors - weak-factors)>

Then tooling can decide whether it cares about the whole key or just the 
'weak' part?

br
Paul