nixpkgs/nixos/tests/gitdaemon.nix

import ./make-test-python.nix (
  { pkgs, ... }:

  let
    hashes = pkgs.writeText "hashes" ''
      b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c  /project/bar
    '';
  in
  {
    name = "gitdaemon";

    meta = with pkgs.lib.maintainers; {
      maintainers = [ tilpner ];
    };

    nodes = {
      server =
        { config, ... }:
        {
          networking.firewall.allowedTCPPorts = [ config.services.gitDaemon.port ];

          environment.systemPackages = [ pkgs.git ];

          systemd.tmpfiles.rules = [
            # type path mode user group age arg
            " d    /git 0755 git  git   -   -"
          ];

          services.gitDaemon = {
            enable = true;
            basePath = "/git";
          };
        };

      client =
        { pkgs, ... }:
        {
          environment.systemPackages = [ pkgs.git ];
        };
    };

    testScript = ''
      start_all()

      with subtest("create project.git"):
          server.succeed(
              "git init --bare /git/project.git",
              "touch /git/project.git/git-daemon-export-ok",
          )

      with subtest("add file to project.git"):
          server.succeed(
              "git clone /git/project.git /project",
              "echo foo > /project/bar",
              "git config --global user.email 'you@example.com'",
              "git config --global user.name 'Your Name'",
              "git -C /project add bar",
              "git -C /project commit -m 'quux'",
              "git -C /project push",
              "rm -r /project",
          )

      # Change user/group to default daemon user/group from module
      # to avoid "fatal: detected dubious ownership in repository at '/git/project.git'"
      server.succeed("chown git:git -R /git/project.git")

      with subtest("git daemon starts"):
          server.wait_for_unit("git-daemon.service")


      server.systemctl("start network-online.target")
      client.systemctl("start network-online.target")
      server.wait_for_unit("network-online.target")
      client.wait_for_unit("network-online.target")

      with subtest("client can clone project.git"):
          client.succeed(
              "git clone git://server/project.git /project",
              "sha256sum -c ${hashes}",
          )
    '';
  }
)