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	Nix Package Manager development	876 Members
	For people hacking on Nix: https://github.com/NixOS/nix Nix maintainers can be reached here.	184 Servers

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Sender	Message	Time
27 Oct 2025
backtail	Hey peeps, I unknowingly ran into the `leaveDotGit` bug of unpredictable hash generation for nix derivations. I patched the dependency, but now ofborg says that my provided hash is wrong: ´´´bash error: hash mismatch in fixed-output derivation '/nix/store/q59g9bk2kwh20sr8ir00gz5d5yjkb75r-source.drv': specified: sha256-HoqFBkxXlmbWaFPOVvO0zUhlDBVzz++T6Fgf0MAuyao= got: sha256-rcIbtIXTm1sNMCbs6W5DS/9KeMkWWhUdwReW++nW2Qc= error: 1 dependencies of derivation '/nix/store/q5izjyv5iv1h0zdc06my4dp07wvv9j76-KnobKraft-orm-2.7.1.drv' failed to build ´´´ The point that I don't understand is that every architecture, aarch64, x64_86, etc. all have different hashes. However, I just want to build it for x64_86_linux. So how do I tell ofborg to only build on one architecture and why does the hash that works locally not work with ofborg?	20:33:55
backtail	* Hey peeps, I unknowingly ran into the `leaveDotGit` bug of unpredictable hash generation for nix derivations. I patched the dependency, but now ofborg says that my provided hash is wrong: ´´´ error: hash mismatch in fixed-output derivation '/nix/store/q59g9bk2kwh20sr8ir00gz5d5yjkb75r-source.drv': specified: sha256-HoqFBkxXlmbWaFPOVvO0zUhlDBVzz++T6Fgf0MAuyao= got: sha256-rcIbtIXTm1sNMCbs6W5DS/9KeMkWWhUdwReW++nW2Qc= error: 1 dependencies of derivation '/nix/store/q5izjyv5iv1h0zdc06my4dp07wvv9j76-KnobKraft-orm-2.7.1.drv' failed to build ´´´ The point that I don't understand is that every architecture, aarch64, x64_86, etc. all have different hashes. However, I just want to build it for x64_86_linux. So how do I tell ofborg to only build on one architecture and why does the hash that works locally not work with ofborg?	20:35:08
backtail	* Hey peeps, I unknowingly ran into the `leaveDotGit` bug of unpredictable hash generation for nix derivations. I patched the dependency, but now ofborg says that my provided hash is wrong: `error: hash mismatch in fixed-output derivation '/nix/store/q59g9bk2kwh20sr8ir00gz5d5yjkb75r-source.drv': specified: sha256-HoqFBkxXlmbWaFPOVvO0zUhlDBVzz++T6Fgf0MAuyao= got: sha256-rcIbtIXTm1sNMCbs6W5DS/9KeMkWWhUdwReW++nW2Qc= error: 1 dependencies of derivation '/nix/store/q5izjyv5iv1h0zdc06my4dp07wvv9j76-KnobKraft-orm-2.7.1.drv' failed to build` The point that I don't understand is that every architecture, aarch64, x64_86, etc. all have different hashes. However, I just want to build it for x64_86_linux. So how do I tell ofborg to only build on one architecture and why does the hash that works locally not work with ofborg?	20:37:20
backtail	Well... now that I got another review, suddenly ofborg gives me output that it did successfully built the package for linux (aarch64 and x64_86) but failed for darwin. I am honestly confused as to how to interpret ofborg output. I would appreciate a quick explanation!	21:16:19
Sergei Zimmerman (xokdvium)	More of a nixpkgs question generally: https://matrix.to/#/#users:nixos.org. But this might have to do with case sensitivity and whatnot	23:44:15
28 Oct 2025
Sergei Zimmerman (xokdvium)	Eelco:	00:29:23
Sergei Zimmerman (xokdvium)	* Eelco: as discussed during the meeeting, here's the constant-memory uploads to http binary caches: https://github.com/NixOS/nix/pull/14390	00:29:54
backtail	In reply to @xokdvium:matrix.org More of a nixpkgs question generally: https://matrix.to/#/#users:nixos.org. But this might have to do with case sensitivity and whatnot Thanks for the pointer!	01:39:08
	backtail left the room.	01:43:26
fzakaria	any good issues I can work on?	01:58:23
fzakaria	I finished that NAR thing.	01:58:26
tomberek	@fzakaria:one.ems.host: perhaps a more long term solution to:https://github.com/GrahamDennis/nix/pull/8. We got team approval for "final" to be exposed so that locked fetches don't force a refetch if it already exists.	02:10:55

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