nix-shell -p git

Or some even fancier ones:

nix-store -qR $(nix-build '<nixpkgs>' -A git --no-out-link)

or

nix path-info -rSh $(nix-build '<nixpkgs>' -A git --no-out-link)

or this command (which nix people avoid generally because it creates files outside of the store):

nix-env -p /tmp/clean-profile -iA nixpkgs.git && nix-store -qR /tmp/clean-profile


# then

rm /tmp/clean-profile* 

# to get rid of the temp files

and here’s how I personally implemented a global gitignore on my system. This is a redacted version of my git config:

 { lib, pkgs, ... }:

{
  home.packages = with pkgs; [
    diff-so-fancy # git diff with colors
    git-crypt # git files encryption
    hub # github command-line client
    tig # diff and commit view
  ];

  programs.git = {
    enable = true;

    settings = {
      alias = {
        cm = "commit -m";
        ca = "commit -am";
        dc = "diff --cached";
        rmain = "rebase main";
        rc = "rebase --continue";
      };
      core = {
        editor = "nvim";
        pager = "diff-so-fancy | less --tabs=4 -RFX";
      };
      init.defaultBranch = "main";
      merge = {
        conflictStyle = "diff3";
        tool = "vim_mergetool";
      };
   
      pull.rebase = false;
      push.autoSetupRemote = true;
      url = {
        "https://github.com/".insteadOf = "gh:";
        "ssh://git@github.com".pushInsteadOf = "gh:";
        "https://gitlab.com/".insteadOf = "gl:";
        "ssh://git@gitlab.com".pushInsteadOf = "gl:";
      };
      user = {
        email = "redacted";
        name = "redacted";
      };
    };

    ignores = [
      "*.bloop"
      "*.bsp"
      "*.metals"
      "*.metals.sbt"
      "*metals.sbt"
      "*.direnv"
      "*.envrc"
      "*hie.yaml" 
      "*.mill-version"
      "*.jvmopts"
      "build/" 
    ];

    signing = {
      key = "redacted";
      signByDefault = true;
    };

  } // (pkgs.sxm.git or { });
}