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Nixpkgs Architecture Team

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13 Dec 2023
@infinisil:matrix.orginfinisil Or some way to specify overrides. args.nix maybe, but that's very ad-hoc. Maybe rather something like dependencies.nix and config.nix or so 23:49:34
@infinisil:matrix.orginfinisil And this kind of idea would be really useful to have standardised, such that people can write third-party package directories, and upstreaming to Nixpkgs will be just a matter of a cp -r. Or even better: Allow third-party repositories to have their package directories be automatically pulled into Nixpkgs 23:50:38
@infinisil:matrix.orginfinisilAnd yes this does sound a lot like the Flakes output schema, but I don't think we can use that directly in its current state23:52:56
@infinisil:matrix.orginfinisil 9999years: But yeah, having https://github.com/NixOS/nixpkgs/pull/270537 won't prevent such a standardisation in the future. I don't think new approaches should be introduced when there's already an existing one. But in this case there isn't an existing approach, so I don't want to block that. 23:56:37
14 Dec 2023
@9999years:matrix.org9999years maybe we could merge it with callPackage and then adapt it to use packageFromDirectory in the future (and add an assert that only one is supplied)...? 00:02:34
@infinisil:matrix.orginfinisil Not sure what you mean by merging it with callPackage 00:14:38
@9999years:matrix.org9999years

i.e. merging #270537 with { callPackage, ... }: as the argument, and then later doing something like

{
  callPackage,
}:
00:18:17
@9999years:matrix.org9999years *

i.e. merging #270537 with { callPackage, ... }: as the argument, and then later doing something like

{
  callPackage,
  packageFromDirectory ? path: callPackage path {},
}:
00:18:32
@infinisil:matrix.orginfinisil
In reply to @philiptaron:matrix.org
infinisil: I love pkgs/by-name and I write Rust at work. I'd be glad to be code reviewer when you're ready.
I just cleaned up the PR and marked it as ready to review, it would be great if you could take a look now! Best reviewed commit-by-commit, they all come with comments: https://github.com/NixOS/nixpkgs/pull/272395
03:10:34
@infinisil:matrix.orginfinisil
In reply to @philiptaron:matrix.org
infinisil: I love pkgs/by-name and I write Rust at work. I'd be glad to be code reviewer when you're ready.
* I just cleaned up the PR and marked it as ready to review, it would be great if you could take a look now! Best reviewed commit-by-commit, they all come with commit messages: https://github.com/NixOS/nixpkgs/pull/272395
03:14:08
@infinisil:matrix.orginfinisil
In reply to @9999years:matrix.org

i.e. merging #270537 with { callPackage, ... }: as the argument, and then later doing something like

{
  callPackage,
  packageFromDirectory ? path: callPackage path {},
}:
Hmm not sure. The reason why I proposed packageFromDirectory is to make the function interface not more complicated than it has to be. But yeah I can see the argument that callPackage is fairly well-known, so it might be nice to have that as an argument, even though the second argument doesn't really make sense for the function as is.
03:17:57
@infinisil:matrix.orginfinisil 9999years: Posted a comment: https://github.com/NixOS/nixpkgs/pull/270537#discussion_r1426132656 03:24:34
@infinisil:matrix.orginfinisil
In reply to @infinisil:matrix.org
I just cleaned up the PR and marked it as ready to review, it would be great if you could take a look now! Best reviewed commit-by-commit, they all come with commit messages: https://github.com/NixOS/nixpkgs/pull/272395
We could also pair-review this on a call if you want. Also I think Wanja Hentze might be interested in taking a look
03:41:10
@philiptaron:matrix.orgPhilip Taron (UTC-8)Taking a look. I could pair review on a call. It's 19:45 PST and I'm available for another 45 minutes. :-)03:46:28
@philiptaron:matrix.orgPhilip Taron (UTC-8)Redacted or Malformed Event03:46:37
@philiptaron:matrix.orgPhilip Taron (UTC-8) * I've got Zoom if that works for you. 03:47:06
@jonringer:matrix.org@jonringer:matrix.org Alternative to callPackage, instead allow for simple "smart" function application through callFunction :) https://github.com/NixOS/nixpkgs/pull/274179 08:41:58
@nbp:mozilla.orgnbp
In reply to @infinisil:matrix.org
So we could have e.g. a module.nix file that specifies a NixOS module (or home-manager module, or some abstract module, ..)
If we do so, I urge that we also think about making it discoverable, like NixOS options are today.
10:17:12
@whentze:matrix.orgWanja Hentzenot too much time for this atm, but can perhaps fit it in tomorrow13:14:23
@infinisil:matrix.orginfinisil
In reply to @philiptaron:matrix.org
Taking a look. I could pair review on a call. It's 19:45 PST and I'm available for another 45 minutes. :-)
Oh yeah that was at 5am for me, maybe that won't work that well
14:22:22
@infinisil:matrix.orginfinisil
In reply to @philiptaron:matrix.org
Taking a look. I could pair review on a call. It's 19:45 PST and I'm available for another 45 minutes. :-)
* Oh yeah that was at 5am for me, maybe that won't work that well haha
14:22:31
@philiptaron:matrix.orgPhilip Taron (UTC-8)
In reply to @infinisil:matrix.org
Oh yeah that was at 5am for me, maybe that won't work that well haha

I did end up taking a look through the PR. It all looks sane. I have various code organization suggestions, but the current organization isn't bad at all and I would definitely accept it.

Most of the code organization suggestions end up being "make a method on NixpkgsProblem named for the condition that will be created", and returning Option<Self>. That would make check_values look super sleek by sequencing together all the various checks, rather than bulky due to having the checks inlined.

One "rusty" nit is to have the various things accepting &Vec<Something> accept instead the slice &[Something]. That's both lower power and more general.

Thanks for doing this work! Big win across the board already, and more to come.

17:18:27
15 Dec 2023
@philiptaron:matrix.orgPhilip Taron (UTC-8)
In reply to @infinisil:matrix.org
I just cleaned up the PR and marked it as ready to review, it would be great if you could take a look now! Best reviewed commit-by-commit, they all come with commit messages: https://github.com/NixOS/nixpkgs/pull/272395
OK, want me to run the tests and call it a day for acceptance?
00:11:59
@infinisil:matrix.orginfinisil Philip Taron: That would be great! Just wrote a top-level comment too :) https://github.com/NixOS/nixpkgs/pull/272395#issuecomment-1857050220 00:12:48
@philiptaron:matrix.orgPhilip Taron (UTC-8)Have you read this? https://qntm.org/ratchet00:16:49
@infinisil:matrix.orginfinisil Philip Taron: No but I'll take a look now, seems relevant! 00:18:47
@infinisil:matrix.orginfinisilDone, yeah that's the general idea :D00:22:40
@philiptaron:matrix.orgPhilip Taron (UTC-8)I find the name really great. At work, we write these kind of "ratchet linters" all the time. Usually just a sqlite database + some regexs. It helps having a concept for them, since they're strictly speaking not really a test (pass / fail) they're.. their own thing.00:23:57
@infinisil:matrix.orginfinisilAh yeah, the name is really great, I guess it would be nice to change the name of the concept in the by-name tool!00:25:20
@philiptaron:matrix.orgPhilip Taron (UTC-8)Gave you a ✅ after reading through the code.00:26:53

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