{ user ? throw "user argument is required" }: { config, pkgs, ... }:

let
  hmConfig = config.home-manager.users."${user.name}";
in
{
  home-manager.users."${user.name}" = {
    programs.git = {
      enable = true;
      lfs.enable = true;
      userName = user.fullName;
      userEmail = user.email;

      signing = {
        signByDefault = true;
        key = null;
      };

      extraConfig = {
        credential.helper = "store";
        push.autoSetupRemote = true;
      };

      hooks = {
        commit-msg = let name = "git-commit-msg-hook"; in
          "${pkgs.writeShellApplication {
          inherit name;
          runtimeInputs = with pkgs; [ git ];
          text = builtins.readFile ./commit-msg.sh;
        }}/bin/${name}";
      };
    };

    sops.secrets."git".path = "${hmConfig.xdg.configHome}/git/credentials";
  };
}