Hello! Ludovic Courtès <l...@gnu.org> skribis:
> Over the last few days I’ve been head-down working on > ‘wip-build-systems-gexp’, the mythical branch that brings gexps to build > systems and packages, so we can say goodbye to > ‘build-expression->derivation’. And… it’s quite a ride! The current tip of ‘wip-build-systems-gexp’ Just Works; it’s being built, it can build ‘guix’ and cross-build things like ‘sed’: https://data.guix-patches.cbaines.net/repository/2/branch/wip-build-systems-gexp https://ci.guix.gnu.org/jobset/wip-build-systems-gexp (though Cuirass currently has unrelated problems) In terms of performance, there’s still a ~10% slowdown when computing derivations compared to the ‘core-updates’ revision the branch is based on. Here’s what I’d like to do in the coming days, if that doesn’t interfere with what others have in mind for the upcoming release: • Monitor build failures due to typos/thinkos made while adjusting build systems; • Merge on ‘core-updates’. Then there are optimizations to work on, but that can take a bit longer. In particular, in ‘gexp->derivation’, allow file-like objects to be specified as environment variable values. In turn, use that so that, say, ‘gnu-build-system’ has a single builder for all its packages and just calls ‘getenv’ to get the value of its various parameters, similar to what (guix git-download) does. That said, if people think it’s too late in the cycle, we could just as well keep it for the next cycle. Thoughts? Thanks, Ludo’.
