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Nix Package Manager development

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For people hacking on Nix: https://github.com/NixOS/nix Nix maintainers can be reached here.176 Servers

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4 Jun 2025
@yadov3k:matrix.orgyadov3k* Hi, does build-users-group / https://github.com/NixOS/nix/blob/4751cbef6303d10479f3db1b13db69197d9c3446/src/libstore/include/nix/store/globals.hh#L439 mean that once i build a nix docker image and do not include the "nixbld" group into the docker image, i run into the situation that inside the docker image, maximum parallel nix builds are = 1?11:45:44
@k900:0upti.meK900Inside a Docker image Nix is running as single user anyway12:19:10
@yadov3k:matrix.orgyadov3k thats right, i'm talking about the build where i can set "max-jobs 16" or similar 13:04:29
@k900:0upti.meK900In single user mode all builds run as your own user13:05:11
@phanirithvij:matrix.orgloudgolem
In reply to @kilian:holzinger.bayern
Hi, how do I build the nix manual?
https://wiki.nixos.org/wiki/Nixpkgs/Manuals
16:14:42
@phanirithvij:matrix.orgloudgolem
In reply to @kilian:holzinger.bayern
Hi, how do I build the nix manual?
* https://wiki.nixos.org/wiki/Nixpkgs/Manuals#nix_manual
16:15:18
@yadov3k:matrix.orgyadov3k according to your answer, this should not happen inside the docker image, correct?

16:19:07
@yadov3k:matrix.orgyadov3kRedacted or Malformed Event16:19:08
@yadov3k:matrix.orgyadov3kRedacted or Malformed Event16:19:32
@yadov3k:matrix.orgyadov3kRedacted or Malformed Event16:20:11
@yadov3k:matrix.orgyadov3k hmm, screenshot upload is not possible apparently,

ls /tmp
...
4 drwxr-xr-x 11 root     root   4096 Jun  3 06:52 nix-13888-0
4 drwx------  3 nixbld16 nixbld 4096 Jun  3 11:42 nix-build-purs-0.15.15.drv-0
4 drwx------  5 nixbld1  nixbld 4096 Jun  3 11:35 nix-build-website.drv-0
4 drwxr-xr-x  2 root     root   4096 Jun  3 10:54 nix-develop-24156-1
4 -rw-------  1 root     root    338 Jun  3 09:35 nix-git-submodules.A53KSf
16:20:53
@k900:0upti.meK900Which Docker image is that?16:23:07
@0x4a6f:nixos.dev0x4A6F joined the room.16:57:16
5 Jun 2025
@yadov3k:matrix.orgyadov3k https://github.com/NixOS/nix/blob/master/docker.nix#L152
https://hub.docker.com/r/nixos/nix
07:34:14
6 Jun 2025
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7 Jun 2025
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8 Jun 2025
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@pveierland:matrix.orgpveierlandHow can the nix eval cache database store attribute names in a text database column (unicode) if attribute names are nix strings that do not have character encoding?00:19:18
@emilazy:matrix.orgemilyhave you tried to break it?00:29:00
@emilazy:matrix.orgemilyI wouldn't be surprised if it just breaks00:29:03
@emilazy:matrix.orgemilyIIRC passing non-ASCII attribute names via the CLI might not work though00:29:09
@pveierland:matrix.orgpveierlandNo, just trying to confirm my understanding of the data model00:30:14
@emilazy:matrix.orgemilyI suspect the answer is that it wasn't really thought about :)00:35:01
@emilazy:matrix.orgemilyNix string handling is sort of weird00:35:13
@pveierland:matrix.orgpveierlandCool, will try my best to accommodate byte strings then :)00:36:44
@zitrone:utwente.iozitrone joined the room.01:02:47
@pveierland:matrix.orgpveierland(Details in this crate were quite helpful to understand path encoding handling: https://docs.rs/gix-path/latest/gix_path/)02:00:45

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