| 21 Nov 2025 |
 magic_rb | Though, theyve been planning to remove unregistered ever since i know what GHC is, sooo probably not happening soon | 00:05:39 |
 Alex | In reply to @magic_rb:matrix.redalder.org
Didnt they plan to remove unregistered builds? That's no good if GHC can't generate valid code with NCG/LLVM for your platform.
Anyway, it might not be needed for newer GHCs (IIRC with RISC-V changing Nixpkgs version without changing GHC fixed the registerised segfault). | 00:08:53 |
 sterni | I'm working on it | 14:21:42 |
| 23 Nov 2025 |
|  Acid Bong joined the room. | 10:21:02 |
| 28 Nov 2025 |
| Acid Bong | about Haskell docs: is there a way to prevent a Hs package (like Cachix) to pull docs for all its libraries when added in NixOS' environment.systemPackages? specifically for Cachix it reaches 1.5 GB, while the cachix.bin closure alone is only 155 MB (most of which is Nix' closure) | 16:14:44 |
 maralorn | Acid Bong: Maybe put cachix.bin in environment.systemPackages? | 16:17:19 |
| Acid Bong | i did, NixOS still pulled doc outputs
weird thing about Nixpkgs' outputs in general: they're all reachable from one another (meaning ffmpeg.dev is the same as ffmpeg.lib.bin.dev.bin.dev)
my workaround was to use symlinkJoin, but that looked kinda convoluted | 16:20:50 |
 linj | cannot reproduce. closure size of my cachix is only 155MiB
nix path-info -Sh $(nix build github:nixos/nixpkgs/nixos-unstable#cachix --print-out-paths)
/nix/store/k77ik2kcv82y2qvv3lg6x4r2cfwjbix2-cachix-1.9.1-bin 155.8 MiB
| 16:25:44 |
 ghpzin | You might disable documentation.doc.enable, if you do not want to pull them for any package. | 16:25:51 |
| ghpzin | You might disable documentation.doc.enable, if you do not want to pull them for any package in environment.systemPackages | 16:26:06 |
| Acid Bong | the way to reproduce is to have environment.systemPackages = [pkgs.cachix]; | 16:27:44 |
| Acid Bong | it does help, but I want to have doc output from other packages | 16:28:24 |
| Acid Bong | * it does help, but I want to have doc output from other packages, so not perfect | 16:28:31 |
| linj | interesting, let me try | 16:28:58 |
| Acid Bong | it'll start like this:
these 279 paths will be fetched (160.57 MiB download, 1693.50 MiB unpacked):
/nix/store/i6kmc2cg12acc5kx55vpkxwb1a07a17s-Diff-1.0.2-doc
/nix/store/1aqpij0r645krf360sp91755gbr23g6k-OneTuple-0.4.2-doc
/nix/store/nfnj3wiv2hmiybkywz72749b7vy17hpj-QuickCheck-2.15.0.1-doc
/nix/store/19yjvfpkjxxcvi8kyvj21wk8qlf1qfy9-SHA-1.6.4.4-doc
/nix/store/lr0vzbpjqzxli3i255y6rxxmihh75ljx-StateVar-1.2.2-doc
/nix/store/0y1dvczs1hhnhq21fhx6gpv8jdswxcd3-adjunctions-4.4.3-doc
/nix/store/qi4r1j0mf1qrfxkzgdcd402gkm8g1dz5-aeson-2.2.3.0-doc
/nix/store/91hz94r3z28al926pj1z49nwd3a7l7xk-aeson-pretty-0.8.10-doc
/nix/store/1qzz56rc62qbcaz6735nfrz68llmzmn9-algebraic-graphs-0.7-doc
/nix/store/njypyw5wkzqjz8yg5h5jsc7fprhjacfq-amazonka-2.0-unstable-2025-04-16-doc
/nix/store/mhr4sj0rv8amf2df1bqa1p23r2zxwa4v-amazonka-core-2.0-unstable-2025-04-16-doc
...
| 16:31:40 |
| Acid Bong | actually, this seems more like a buildEnv issue than Haskell (it's just only Haskell that has doc outputs for every library out there) | 16:35:47 |
| linj | Acid Bong: Yeah, you are right. | 17:05:07 |
| linj | Maybe we should add a variant of cachix that uses justStaticExecutables instead of enableSeparateBinOutput | 17:05:47 |
| Acid Bong | i seem to be not alone in this: https://github.com/NixOS/nixpkgs/issues/316768 | 17:07:32 |
| Acid Bong | maybe do that for all top-level standalone haskell packages? | 17:07:58 |
| Acid Bong | although Nixfmt is fine already | 17:09:12 |
| linj | No, I do not think they are the same issue. Actually, from a certain perspective,
your "issue" is not an issue. It works as expected: you have documentation.doc.enable = true so cachix doc is pulled in | 17:10:44 |
| linj | because it uses justStaticExecutables already | 17:11:39 |
| Acid Bong | not cachix's doc, but all its dependencies' docs | 17:12:27 |
| Acid Bong | * not only cachix's doc, but all its dependencies' docs | 17:12:37 |
| Acid Bong | and the second part is exactly undesirable | 17:12:48 |
| linj | haha, its doc depends on its dependencies' doc | 17:15:01 |
| linj | You can go to its dependencies' doc by clicking hyperlinks from its doc | 17:16:39 |
| Acid Bong | ah, I thought buildEnv pulls docs recursively | 17:16:41 |
| linj | It's a feature! | 17:16:44 |
