om ci run —on fails if flake input is private repo

[rsrohitsingh682]

When using om ci run —on option to run ci on a remote machine, the expectation is all flake inputs should be copied to the remote machine.

But it fails when flake input is of private repo.

Steps to reproduce:

nix run github:juspay/omnix — ci run --on ssh://<user>@<ip> github:rsrohitsingh682/haskell-repo

[srid]

While the description shows that the error is during nix eval, when I tried to reproduce it happened around nix build:

[srid]

Ah, omnix never copied the private repo:

So nix copy'ing a flake does not automatically copy over its flake inputs.

[srid]

The solution is to move away from nix flake metadata to something else (an expression defined in Nix, just like devour-flake) for retrieving flake metadata including outPath's of flake inputs.