cachix-agent service dies at launch

[dhess]

This started happening sometime in the last month or two with nixpkgs-unstable:

cachix: security: createProcess: posix_spawnp: does not exist (No such file or directory)

It has something to do with the PATH set by the launchd service. I looked at the Cachix agent source and didn't see anything obvious, and have run out of time to debug it properly, but FYI adding /usr/bin to the launchd service's PATH fixes the problem.

(I suspected coreutils and added coreutils-full to the path, but that did not fix the issue on my system.)

[domenkozar]

I've only seen it now, looks similar to NixOS/nixpkgs#297775

[sandydoo]

So one of the Haskell TLS libraries is calling security, which isn't in the PATH.

We can either add /usr/bin to the launchctl paths, or do something like this tweag/rules_haskell@31171a5

[sandydoo]

config.environment.systemPath would probably also work?