!VRULIdgoKmKPzJZzjj:nixos.org

Nix Hackers

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For people hacking on the Nix package manager itself190 Servers

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16 Jul 2024
@fzakaria:one.ems.hostfzakariato do the benchmark; there's plenty of public discourse on the penalty of it for clang vs gcc implementation12:55:16
@fzakaria:one.ems.hostfzakariait's like ~2x which is not bad when compared to something like valgrind12:55:32
@fzakaria:one.ems.hostfzakariaI drank Google koolaid when I worked there so I like OWNERS files a lot :)12:57:23
@Las:matrix.orgLasWhy do you think it's not worth it?13:05:02
@Las:matrix.orgLasAh, not worth testing?13:05:13
@kjeremy:matrix.orgkjeremyHow do I push https://github.com/NixOS/nix/pull/10980 forward?13:47:02
@Las:matrix.orgLas kjeremy: You can bring it up at the meeting tomorrow or I can if you can't. 14:44:35
@Las:matrix.orgLaswell TBF it's a tiny PR14:44:59
@kjeremy:matrix.orgkjeremy
In reply to @Las:matrix.org
kjeremy: You can bring it up at the meeting tomorrow or I can if you can't.
I probably won't be able to attend so if you can that would be great
14:45:02
@Las:matrix.orgLasnot a lot of reason to join, I'll bring it up in any cases14:45:07
@Las:matrix.orgLas * not a lot of reason to join, I'll bring it up in any case14:45:10
@keiichi:matrix.orgteto kjeremy: that's a great feature, my teammates have built a tool around fzf just to show the description of the different targets while nix flake show would have been more natural 15:38:29
@kjeremy:matrix.orgkjeremy teto: Thank you. My team is relatively new to nix and this change has been helping with discoverability 15:42:44
@fzakaria:one.ems.hostfzakariawhy does Nix use logger->cout instead of cout directly ?20:35:25
@fzakaria:one.ems.hostfzakariaTrying to write to cout without a newline at the end :)20:38:07
@fzakaria:one.ems.hostfzakarianot worth testing since it's well studied the performance penalty20:38:24
@fzakaria:one.ems.hostfzakariaCan I use ccache + clangStdEnv ?20:46:15
@Las:matrix.orgLasI haven't found a way.21:02:46
@tormod.hellen:matrix.org@tormod.hellen:matrix.org left the room.23:17:03
17 Jul 2024
@fzakaria:one.ems.hostfzakaria

weird, i rebuilt Nix and i am hitting:

error: experimental Nix feature 'nix-command' is disabled; add '--extra-experimental-features nix-command' to enable it

01:34:41
@fzakaria:one.ems.hostfzakariabut it's in my settings...01:35:53
@jade_:matrix.orgjade_
In reply to @fzakaria:one.ems.host

weird, i rebuilt Nix and i am hitting:

error: experimental Nix feature 'nix-command' is disabled; add '--extra-experimental-features nix-command' to enable it

are you experiencing --prefix? the dev shell uses the locally built lix and ignores your system configuration
08:13:41
@jade_:matrix.orgjade_if so, poke outputs/out/etc/nix/nix.conf08:13:59
@roberthensing:matrix.orgroberthwe've definitely had the opposite problem of loading user configuration when we shouldn't, in tests10:23:07
@Las:matrix.orgLas quick work-around: NIX_CONFIG="experimental-features = nix-command flakes" 15:16:07
@fzakaria:one.ems.hostfzakarianow Nix flake is working :(16:05:57
@fzakaria:one.ems.hostfzakariaanyone got a nice vscode setup working?16:09:16
@Las:matrix.orgLasHow do I enable clang format on something in CI?22:44:50
@qyriad:katesiria.orgQyriad we haven't enabled clang-format in our pre-commit yet, so if you want to clang-format some code then you can just run clang-format yourself 23:10:38
@qyriad:katesiria.orgQyriadbut we haven't clang-format'd the codebase yet23:10:53

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