{ pkgs ? import <nixpkgs> { }, lint ? false }:

let
  # Remove this package definition after https://github.com/NixOS/nixpkgs/pull/93377 reaches stable
  backoff-fallback = { lib, buildPythonPackage, fetchPypi }:
    buildPythonPackage rec {
      pname = "backoff";
      version = "1.10.0";
      src = fetchPypi {
        inherit pname version;
        sha256 = "190rdpfhpjvb6bjh99fhdkgfsfkjwky7nz7b0nn5ah67z8hs1yxq";
      };
      meta = with lib; {
        description = "Function decoration for backoff and retry";
        homepage = "https://github.com/litl/backoff";
        license = licenses.mit;
        maintainers = with maintainers; [ chkno ];
      };
    };

in pkgs.python3Packages.callPackage
({ lib, buildPythonPackage, nix, git, backoff, autopep8, mypy, pylint, }:
  buildPythonPackage rec {
    pname = "git-cache";
    version = "1.3.0-pre";
    src = lib.cleanSource ./.;
    propagatedBuildInputs = [ backoff ];
    checkInputs = [ nix git mypy ] ++ lib.optionals lint [ autopep8 pylint ];
    doCheck = true;
    checkPhase = "./test.sh";
  }) {
    backoff = pkgs.python3Packages.backoff or (pkgs.python3Packages.callPackage
      backoff-fallback { });
  }