hyperdex: could not exec replicant

[tari]

Issue description

Starting the HyperDex coordinator by running hyperdex coordinator does most of its work by re-executing replicant, which must be on PATH. This does not work with the current derivation.

This could be fixed either by ensuring replicant is added to PATH (would making it a propagated build input be sufficient?) or patching hyperdex to exec replicant by its store path.

Steps to reproduce

Install hyperdex, run hyperdex coordinator. It fails.

Technical details

• System: 16.03.1242.c5cbda2 (Emu)
• Nix version: nix-env (Nix) 1.11.2
• Nixpkgs version: 16.03.1242.c5cbda2

[teh]

Thanks! Upstream hyperdex is not super maintained and in my experience not stable enough to be used in production. I vote for removing it from nixos. @tari are you relying in hyperdex in nixos or is are you just testing?

[1]
https://github.com/rescrv/HyperDex/commits/master

[tari]

I was just testing, not relying on it. Removal sounds okay to me.

Alternately, I tested and adding replicant to propagatedUserEnvPkgs (in addition to buildInputs) fixes the problem.