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Haskell in Nixpkgs/NixOS

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For discussions and questions about Haskell with Nix, cabal2nix and haskellPackages in nixpkgs | Current Docs: https://haskell4nix.readthedocs.io/143 Servers

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8 Nov 2024
@sternenseemann:systemli.orgsterni (he/him)

depends on your perspective, I guess, but it would

  • improve performance
  • make it possible to apply the overlay to haskellPackages itself (as opposed to a mere copy of it) by preventing an infinite recursion between the overlay and cabal2nix-unwrapped which is taken from pkgs.haskellPackages.
18:56:48
@sternenseemann:systemli.orgsterni (he/him) but updateHackage is pretty good for prototyping, I guess, i.e. it should be enough to figure out the user interface of the tool etc. 18:57:23
@lxsameer:matrix.orglxsameer
In reply to @sternenseemann:systemli.org

depends on your perspective, I guess, but it would

  • improve performance
  • make it possible to apply the overlay to haskellPackages itself (as opposed to a mere copy of it) by preventing an infinite recursion between the overlay and cabal2nix-unwrapped which is taken from pkgs.haskellPackages.
what d o you think about moving updateHackage to nixpkgs? so basically a way to override a package if it is broken on the version is not matched against what we have in a package set
20:16:01
@emilazy:matrix.orgemily sterni: would you like me to handle rebasing the LLVM 12 monorepo PR to ensure it can make this -next cycle? 22:14:19
@sternenseemann:systemli.orgsterni (he/him) emily: I can do it in a second 22:14:44
@emilazy:matrix.orgemilynot a super big rush since we haven't even done another eval yet22:15:02
@emilazy:matrix.orgemilyjust wanted to make sure it wouldn't miss the window22:15:11
@emilazy:matrix.orgemily waiting for lock on '/nix/store/31md6b30ml5a09lx5gvg63fy2nrqvyc0-llvm-12.0.1-python', '/nix/store/a4ixva892cyghgg89f2a71yr29bd0c3a-llvm-12.0.1', '/nix/store/isnsjrdy2cvf37smdgicrx01wj4s7018-llvm-12.0.1-lib', '/nix/store/l6gvk8m0amjrhvq1ipv7rrm20bpcl26f-llvm-12.0.1-dev'
you beat me to it on both of the two builders I went to test it on 😆
23:00:38
@sternenseemann:systemli.orgsterni (he/him)aarch64-darwin is broken again somehow this has to be some kind of joke23:30:27
9 Nov 2024
@hungryjoe:matrix.orgHungry Joe joined the room.17:36:24
@hungryjoe:matrix.orgHungry JoeHi, does anyone know who I should reach out to about this PR: https://github.com/NixOS/cabal2nix/pull/630 It's adding an extra library/nix package mapping to cabal2nix, plus a configure flag hook17:38:06
@maralorn:maralorn.demaralorne.g. me. But I am on vacation and will get back to it within a few days.17:48:36
@hungryjoe:matrix.orgHungry JoeAh, thanks, there's no real rush, so long as it gets looked at eventually Enjoy your vacation18:08:48
@sternenseemann:systemli.orgsterni (he/him)I do read my emails/github notifications19:24:26

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