How to fetch LFS enabled repo with fetchFromGitHub?

Help
3

I haven’t tried this but you can probably hack it with something like

src = (fetchFromGitHub {
  owner = "foo";
  repo = "bar";
  rev = "revision here";
  sha256 = "hash here";
  fetchSubmodules = true; # needed to use fetchgit internally
  leaveDotGit = true; # needed to preserve the .git dir
  postFetch = ''
    git lfs init
    git lfs fetch
    # anything else needed to check out lfs files
    # possibly delete .git now
  '';
).overrideAttrs (oldAttrs: {
  nativeBuildInputs = oldAttrs.nativeBuildInputs or [] ++ [ git-lfs ];
});

It’s probably a little cleaner to skip fetchFromGitHub and call fetchgit directly.

You could also try something that wraps builtins.fetchGit, though that doesn’t take a postFetch script so you’d have to use it as the src for a wrapper derivation and hope that it preserves the .git dir (which I honestly have no idea if it does).

And finally, you could also consider submitting a PR that adds native git-lfs support to fetchFromGitHub or fetchgit directly.

3 Likes