| 26 Apr 2025 |
|  @awwpotato:envs.net changed their profile picture. | 19:59:07 |
| 27 Apr 2025 |
|  @wilma-schultz:tchncs.de joined the room. | 03:22:20 |
|  mjolnir banned @wilma-schultz:tchncs.de (<no reason supplied>). | 03:22:21 |
|  John joined the room. | 09:51:52 |
| John | Hi, I hope to be in the right place (otherwise I'd appreciate a redirect), to ask if anyone ever had to build something with kotlin-native, as I have the problem that my build succeeds when I am running a nix shell with shellHook gradle ... but not when I run nix develop with the same shell hook.
I think to have been able to boil the problem down to specific caches being created in ~/ (e.g. ~/.konan), but I cannot get kotlin-native to create the folders elsewhere.
TL:DR; did anyone ever try to do s.t. with kotlin-native within the a nix-flake sandbox? | 09:58:08 |
 Sandro 🐧 | You are mixing things up. The pure mode of flakes doesn't work on that level, it is pure evaluation time. | 12:27:49 |
| John | I might be mixing things up, but I am trying to use the flake in pure mode - however kotlin-native seems to cache things in my home-folder, which in nix develop works because it allows the impurity, but my goal is it to make it pure and to use nix build to build the application. | 12:50:51 |
 dramforever | oh, you mean sandbox = true? | 13:19:49 |
| dramforever | some packages have a hook like this or similar
preBuild = ''
export XDG_CACHE_HOME="$(mktemp -d)"
'';
| 13:20:44 |
| 28 Apr 2025 |
|  Peter Jones joined the room. | 12:43:08 |
| Peter Jones | I have a flake with a devShells.default that uses inputsFrom to create a development environment for a package. If I use nix develop it drops me into a shell with a correct phase functions (buildPhase, etc.). However, if I use nix develop --build I get unexpected errors about no makefiles and if I use nix develop --command bash -c buildPhase bash complains about no such command buildPhase.
What do I need to do in my devShells.default so that either nix develop --build or nix develop --command bash -c buildPhase works? Thanks!
| 12:48:32 |
|  chvp left the room. | 14:31:08 |
|  @coolio:nope.chat joined the room. | 18:21:17 |
| 29 Apr 2025 |
|  @ortolanbunting3002:tchncs.de left the room. | 01:27:50 |
|  jethair (int32/i32) changed their display name from jethair to jethair (int32/i32). | 01:39:46 |
|  Nixx joined the room. | 02:04:00 |
| John | hi dramforever thanks for the reply! Yes, I mean to use the sandboxing-property of nix-flakes as intended. Just to make sure, that I, as a newbie, understand correctly: sandbox=true does not have to specified anywhere for the flake to be in "sandbox-mode", right? | 08:24:37 |
| John | okay, thanks for this hint in the right direction - it turns out that I was trying the right thing all along, only that the variable-name changed in one of the versions and therefore it did not work. Thanks ^^ | 08:27:24 |
|  jimalexberger joined the room. | 14:05:00 |
|  sleeves joined the room. | 16:05:15 |
|  fkouhai joined the room. | 16:35:34 |
|  n8henrie joined the room. | 18:03:45 |
| 30 Apr 2025 |
 Šimon Brandner | Hi, how do I avoid nix develop rebuilding the environment each time? If the shell takes a lot of time to build it is super annoying for it to be done again and again... (atm I have a thing which takes about an hour - I am compiling for ARM 32bit...) | 05:59:53 |
| Šimon Brandner | * Hi, how do I avoid nix develop rebuilding the environment each time? If the shell takes a lot of time to build it is super annoying for it to be done again and again... (atm I have a thing which takes about an hour - I am compiling for ARM 32bit and gcc for that takes quite a while to get built...) | 06:00:16 |
| fkouhai | I found this
https://discourse.nixos.org/t/why-is-my-nix-shell-rebuilding-every-day-solved/15528 | 06:01:46 |
| Šimon Brandner | Should I add keep-outputs and keep-derivations into my system config or into the flake config? I am a bit confused by that... | 06:14:18 |
| fkouhai | I'd try it out in the flake first | 06:38:46 |
| fkouhai | altho the user added it to their configuration.nix
https://gitlab.com/engmark/root/-/commit/2d76e110f0e91dadcf376e8e8d7be01d14ab47cf | 06:40:15 |
 sheeldotme | yeah, thats for nixos. are you running nix develop manually Šimon Brandner ? or are you using direnv to trigger rebuilds? | 14:32:37 |
| Šimon Brandner | Do you mean I should set it system wide?
I am using direnv | 14:33:20 |
