Hi, zimoun <zimon.touto...@gmail.com> skribis:
> On Thu, 30 Jun 2022 at 10:58, Hartmut Goebel <h.goe...@crazy-compilers.com> > wrote: > >> BTW 2: Which updater is used for each package is non-deterministic. > > From (guix discovery), ’all-modules’ is not deterministic because it > depends on how the filesystem tree is walked. Nope! ‘all-modules’ *is* deterministic because it builds upon ‘scheme-files’, which is deterministic and documented as such. > Maybe sorting ’%updaters’ would be enough; something like, > > (define %updaters > ;; The list of publically-known updaters. > (delay (sort (fold-module-public-variables (lambda (obj result) Whether ‘fold-module-public-variables’ is deterministic depends on whether ‘module-map’ is deterministic, which in turn depends on ‘hash-map->list’, which is not deterministic AFAICS. So what we could do is replace uses of ‘module-map’ with a variant that sorts variables. That said, the only case where it can influence updater order is when several of them are defined in the same module. Thoughts? Ludo’.
