#nixos-dev on 2020-11-26

2020-10-29 21:47 worldofpeace changed the topic of #nixos-dev to: NixOS Development (#nixos for questions) | NixOS 20.09 Nightingale ✨ https://discourse.nixos.org/t/nixos-20-09-release/9668 | https://hydra.nixos.org/jobset/nixos/trunk-combined https://channels.nix.gsc.io/graph.html | https://r13y.com | 20.09 RMs: worldofpeace, jonringer | https://logs.nix.samueldr.com/nixos-dev

00:12 <ryantm> gchristensen: I fixed that issue with linux-pam updates getting skipped last night

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00:34 <supersandro2000> ryantm++

00:34 <{^_^}> ryantm's karma got increased to 0x1d

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00:57 <gchristensen> ryantm: oh great, thank you!

00:58 <ryantm> gchristensen: I have a moderation question pending on Discourse, maybe you could take a look?

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02:46 <siraben> What tools exist to automatically generate Nix derivations?

03:13 <ryantm> nix-instantiate

03:22 <siraben> Oops got the terminology mixed up, I think I meant Nix expressions used to make packages

03:22 <siraben> i.e. the expresssion in default.nix

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03:46 <ryantm> There's a bunch of tools that generate ones for language specific projects, they usually named x2nix

04:20 <ryantm> I'm working on making instructions for converting Docbook manual sections to Markdown: https://github.com/NixOS/nixpkgs/issues/104962

04:20 <{^_^}> #104962 (by ryantm, 20 minutes ago, open): Docs: beam.xml -> beam.section.md

04:41 <ryantm> I started a project for tracking Doc conversions https://github.com/NixOS/nixpkgs/projects/37

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06:53 <siraben> ryantm: I see. Yeah I've heard of the .*2nix projects

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06:54 <red[evilred]> eg: mix2nix

06:55 <red[evilred]> (since ryantm mentioned the BEAM - my favorite language ecosystem) :-)

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08:20 <Mic92> supersandro2000: https://github.com/Mic92/nixpkgs-review/releases/tag/2.5.0

08:20 <Mic92> supersandro2000: you need to upgrade nix to nixFlakes in the wrapper.

08:21 <Mic92> supersandro2000: https://github.com/NixOS/nixpkgs/blob/7e26b5456db0a03333776b7baa98caa3438c2b56/pkgs/tools/package-management/nixpkgs-review/default.nix#L21

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10:09 <domenkozar[m]> ryantm: great initiative :)

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10:52 <supersandro2000> Mic92: basically https://github.com/SuperSandro2000/nixpkgs/commit/b164d3b305b99c2fdb1b9d47c22436ba9e7f7759 with your release tag

10:54 <Mic92> yeah, just use the release tag now

10:55 <Mic92> supersandro2000: why is this necesary? https://github.com/SuperSandro2000/nixpkgs/commit/b164d3b305b99c2fdb1b9d47c22436ba9e7f7759#diff-e9f3ce975d1a6861fc782e1bb11a4b23ad01fcbeba83e9d247e87a214e775157R20

10:55 <supersandro2000> Mic92: failings tests I think

10:56 <Mic92> They don't fail in https://github.com/Mic92/nixpkgs-review

10:56 <supersandro2000> at the time I wrote this they failed

10:57 <supersandro2000> I try it without it

10:57 <supersandro2000> and PR incomging

10:59 <Mic92> ryantm: we cannot apply the same yet to the nixos manual, can we?

10:59 <Mic92> I don't see markdown support there.

11:00 <Mic92> pandoc might also be problematic in the nixos build closure.

11:00 <Mic92> not sure

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11:34 <Mic92> ryantm: go docs converted: https://github.com/NixOS/nixpkgs/pull/105025

11:34 <{^_^}> #105025 (by Mic92, 1 minute ago, open): doc/go: convert to markdown

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11:35 <garbas> ryantm++

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11:35 <{^_^}> ryantm's karma got increased to 30

11:35 <{^_^}> ryantm's karma got increased to 32, it's a crit!

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13:56 <infinisil> Hm, hydra swallows errors that occur when evaluating a packages `meta.hydraPlatforms`/`meta.platforms` attributes

13:57 <infinisil> Because of this `builtins.tryEval` here: https://github.com/NixOS/nixpkgs/blob/master/pkgs/top-level/release-lib.nix#L145

14:01 <infinisil> Not sure yet how to fix that

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14:11 <infinisil> Actually, I can probably just remove that tryEval. Hydra seems to be able to handle it just fine

14:13 <infinisil> PR incoming in a bit

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14:51 <lukegb> wtb ofborg telling you if someone else has already opened the same PR as you (for version bumps, etc.)

14:51 <lukegb> or if your PR has been obsoleted by someone else doing a version bump to a newer version because your bump never got merged

14:51 <lukegb> looking at you, awscli

14:52 <lukegb> (yes yes, people could search for other PRs when they open them, but I'm in a factorio mood at the moment so want to automate all the things)

14:54 <infinisil> Opened https://github.com/NixOS/nixpkgs/pull/105042 for what I described above

14:54 <{^_^}> #105042 (by Infinisil, 24 seconds ago, open): release-lib: Don't use tryEval for packagePlatforms

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17:52 <ryantm> Mic92: Yeah, I didn't realize the NixOS manual wasn't hybridized. Is the closure size a problem for releases or in general?

17:53 <Mic92> ryantm: nixos manual can get rebuild if people define their own options. So build dependencies matter a bit more than in nixpkgs

17:53 <Mic92> ryantm: but if we just do it for migrating to markdown within one release it might be fine

17:55 <ryantm> Oh, right. How about we start writing Markdown but still commit and use the generated Docbook .xml files?

17:56 <supersandro2000> They are very hard to read without being compiled

17:56 <supersandro2000> Generally I could print a not rendered markdown file and it would not look to different

17:56 <supersandro2000> also almost anyone can write markdown without doing to much mistakes

17:58 <ryantm> Right, that's one of the reasons we are trying to switch to Markdown.

18:02 <ryantm> I'm proposing we make a directory like nixos/doc/generated/ and make a Makefile that generates the Md -> Docbook files. Each time we convert a section to Markdown, we move the link from whatever.xml to generated/whatever.xml. Then when we are done, we can switch to Markdown generation without needing pandoc in the closure.

18:03 <ryantm> The downside is people writing docs will have to run this Makefile in the meantime.

18:04 <ryantm> We could write a Github action that checks that running it doesn't change the source to mitigate the problems.

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18:24 <supersandro2000> sounds a bit over engineered

18:40 <ryantm> There's currently 146 different XML files to convert in the nixos sub-directory, so I'm not sure we can do that all in one big push.

18:44 <supersandro2000> oh... I thought there where less..

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18:45 <cole-h> FWIW, there are 210 total XML files in Nixpkgs.

18:46 <ryantm> A lot of individual modules have their own documentation.

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20:58 <domenkozar[m]> ryantm: you can write github action that commits if there's a diff

20:58 <domenkozar[m]> that's how I handle auto-generated stuff nowadays

20:58 <domenkozar[m]> like niv, etc

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