influxdb2: fix hardcoded source path

[DieracDelta]

Things done

Influxdb2 does not build with fetchedSourceNameDefault = "full". Reproducible with

nix build --impure --expr 'let nixpkgs = builtins.getFlake "github:NixOS/nixpkgs/4c25e2da4d3a847e5105e6660f266cf46f108f2e"; in
    let
      pkgs = import nixpkgs {
        localSystem = "x86_64-linux";
        config = {
          fetchedSourceNameDefault = "full";
        };
      };
    in
    pkgs.influxdb2
    ' --substituters ""

This PR fixes the hardcoded path in the same style as #468402.

A lingering thought is that it might be worthwhile exposing libflux as its own package so it's actually overridable.

• Built on platform:
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• Tested, as applicable:
  • NixOS tests in nixos/tests.
  • Package tests at passthru.tests.
  • Tests in lib/tests or pkgs/test for functions and "core" functionality.
• Ran nixpkgs-review on this PR. See nixpkgs-review usage.
• Tested basic functionality of all binary files, usually in ./result/bin/.
• Nixpkgs Release Notes
  • Package update: when the change is major or breaking.
• NixOS Release Notes
  • Module addition: when adding a new NixOS module.
  • Module update: when the change is significant.
• Fits CONTRIBUTING.md, pkgs/README.md, maintainers/README.md and other READMEs.

---

Add a 👍 reaction to pull requests you find important.

[Aleksanaa]

Just found that flux in Nixpkgs is an unmaintained package. Dropping it...

[Aleksanaa]

Okay we cannot drop it 😅

[DieracDelta]

hmm maybe we could name this package libflux so it doesn't conflict with this flux package from 2013? I do see some examples like this like libffi or libutil though im not sure if that's a best practice

[Aleksanaa]

Yeah, having it as a standalone package would make maintenance much easier. For flux, even if it's dropped now, you can't take that name anytime soon. libflux would be fine.

[SFrijters]

nixpkgs-review result

Generated using nixpkgs-review.

Command: nixpkgs-review pr 468444
Commit: 33d6b9fb51f1a3802b70d6d9b2dbd829b3e067db