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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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19 May 2025
@oak:universumi.fioak 🏳️‍🌈♥️ changed their display name from oak to oak 🏳️‍🌈♥️.11:00:36
@mgaughan:matrix.orgmgaughan joined the room.20:36:06
20 May 2025
@trofi:matrix.org@trofi:matrix.org You can make linux select() to work for large FDs as well, but you would have to roll your own bit setting code to avoid glibc's limit (or override FD_SETSIZE). 05:41:45
21 May 2025
@fzakaria:one.ems.hostfzakariacherry-pick: https://github.com/NixOS/nix/pull/1324102:28:13
@winter:catgirl.cloudWinter that should probably have --author set to the original author ^^ 02:30:45
@tomberek:matrix.orgtomberekI might be totally clueless, but I don't know why https://github.com/NixOS/nixpkgs/pull/408846 fails on aarch64-linux. Anyone can help?03:24:12
@trofi:matrix.org@trofi:matrix.org /build/source/build/src/nix/nix-store: cannot execute: required file not found suggests the binary is corrupted perhaps? 06:00:09
@weethet:catgirl.cloudWeetHet changed their profile picture.10:59:01
@sinan:sinanmohd.comsinan changed their profile picture.11:59:58
@sinan:sinanmohd.comsinan changed their profile picture.12:00:45
@emilazy:matrix.orgemily is there a way to trace imports of an evaluation that isn't as horribly slow as nix eval -v -v or scopedImport { import = x: builtins.trace x (import x); }? 13:26:03
@emilazy:matrix.orgemilyactually I guess the latter needs to be recursive which would make it even slower13:27:14
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)
In reply to @emilazy:matrix.org
is there a way to trace imports of an evaluation that isn't as horribly slow as nix eval -v -v or scopedImport { import = x: builtins.trace x (import x); }?
Hm, do you need the trace to be super precise? Would a flamegraph suffice?
14:33:28
@emilazy:matrix.orgemilyyes, precision is the aim (dependency tracking)14:34:24
@emilazy:matrix.orgemilythough only a subset of paths (beneath a given root) are required14:34:39
@emilazy:matrix.orgemilypossibly I can use that to help short-circuit things14:35:04
@hacker1024:matrix.orghacker1024Is modifying the implementation of `import` in the Nix source itself an option?14:36:37
@emilazy:matrix.orgemilyI suppose I'd really rather not :)14:46:21
@emilazy:matrix.orgemily I don't really know why -v -v is slow in the first place 14:46:35

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