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Nix Hackers

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2 Oct 2025
@lovesegfault:matrix.orglovesegfaulthttps://github.com/NixOS/nix/pull/1413803:52:59
@lovesegfault:matrix.orglovesegfault the bikeshedding needed is on that isArchiveBased() name, idk what else to call it or if that's good 03:54:37
@getchoo:matrix.orggetchooopened https://github.com/NixOS/experimental-nix-installer/pull/49 so we can use builds with the previous installer fix in nix's main ci05:13:58
@getchoo:matrix.orggetchooit does this by using action artifacts instead of the cache, and in the process of doing that, i ended up de-duplicating the small mess of workflow files05:17:21
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)
In reply to @lovesegfault:matrix.org
the bikeshedding needed is on that isArchiveBased() name, idk what else to call it or if that's good
substitutatableFromNarHash?
06:03:46
@joerg:thalheim.ioMic92 getchoo: where you able to run https://github.com/NixOS/experimental-nix-installer/blob/main/assemble_installer.py btw? 10:59:48
@lovesegfault:matrix.orglovesegfaultNice18:56:51
@lovesegfault:matrix.orglovesegfault why do we have this rev and lastModified stuff in fetchTree? 19:15:53
@lovesegfault:matrix.orglovesegfault it feels to me (naively) really weird that narHash is not sufficient to say "I already have this" reproducibly 19:16:36
@xokdvium:matrix.orgSergei Zimmerman (xokdvium)I lack the full context why it's there in the first place. As Eelco mentions here https://github.com/NixOS/nix/pull/14138#pullrequestreview-3293258649 we can probably treat the fetchTarball as final at least.19:29:05
@lovesegfault:matrix.orglovesegfaultyeah, I'm working on that right now19:29:26
@lovesegfault:matrix.orglovesegfault it's also weird to me that I can't explicitly set lastModified for a fetchTree { type = "tarball"; } and make it final 19:30:00
@xokdvium:matrix.orgSergei Zimmerman (xokdvium) lovesegfault, Mic92 https://github.com/NixOS/nix/pull/14142. I think that was just an small oversight, right? 20:14:42
@lovesegfault:matrix.orglovesegfault btw Sergei Zimmerman (xokdvium) are we clear to merge the aws-crt-cpp changes? I've rebased the other work on top of it and made sure it all still works 20:16:09
@lovesegfault:matrix.orglovesegfaultwhoops, yes!20:16:54
@lovesegfault:matrix.orglovesegfault John Ericson: you're currently the assigned reviewer 20:33:24
@Ericson2314:matrix.orgJohn Ericson @lovesegfault:matrix.org: I am on a walk right now, but I should do it when I get back, and if you don't mind, make sure I don't forget, I got a lot on my mind right now :) 21:43:54
3 Oct 2025
@sinan:sinanmohd.comsinan changed their profile picture.02:43:04
@lovesegfault:matrix.orglovesegfaultnext little bit of the curl-based-s3 work: https://github.com/NixOS/nix/pull/1414403:47:54
@joerg:thalheim.ioMic92Merged.07:25:45
@getchoo:matrix.orggetchoohttps://github.com/NixOS/nix/pull/14002 is now all green (consistently)08:00:40
@joerg:thalheim.ioMic92Thanks a lot. I also opened https://github.com/NixOS/org/issues/16708:16:19
@joerg:thalheim.ioMic92so you can trigger ci runs etc.08:16:55
@joerg:thalheim.ioMic92 @getchoo:matrix.org: i added you now to the installer team. There is a python script repo that uploads new releases from a triggered GitHub action that accepts a hydra eval. When i tested it once it failed but it seemed to have worked at least one time. It could be that we know have to set a user agent to get past the ai scraper shield that we added in front of hydra.nixos.org? I didn't had a closer look. 14:09:15
@lovesegfault:matrix.orglovesegfault thoughts on temporarily extending CI to also test withAWS = false; withCurlS3 = false and withAWS = false; withCurlS3 = true;? 15:38:14
@lovesegfault:matrix.orglovesegfaultI just want to reduce the chance of messing something up while we get all these parts merged 15:38:28
@lovesegfault:matrix.orglovesegfaulthttps://github.com/NixOS/nix/pull/1414716:59:23
@lovesegfault:matrix.orglovesegfaultwe can revert it once we're done messing with that codepath16:59:46
@asoderlind:envs.netasoderlind joined the room.17:08:14
@lovesegfault:matrix.orglovesegfault cc. Sergei Zimmerman (xokdvium) on the above, I think? 17:18:34

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