fetchGit and fetchgit are not working for private repos with submodules

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1

My problem is that fetchGit can do some things and fetchgit can do some other set of things. But at some point I need capabilities of both in my nix-build :neutral_face:

I have private git repo which have private git submodules and so far I figured out that

fetchGit {
  url = "git@github.com:org/repo.git";
  rev = "rev";
}

fetches private repo, but build will fail because of missing private submodules. And btw fetchSubmodules = true option is not accepted by nix 2.3.4

I tried fetchgit as well

fetchgit {
  url = "git@github.com:org/repo.git";
  rev = "rev";
  sha256 = "sha256";
  deepClone = true;
}

It seems deepClone is valid option, but it even can’t fetch initial private repo and fails with error

Could not create directory '/var/empty/.ssh'
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2

Submodule suppport for builtins.fetchgit was just recently merged into Nix: Add fetchSubmodules to builtins.fetchGit by blitz · Pull Request #3166 · NixOS/nix · GitHub

So this will still take some time to show up in a released version of Nix.

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