anchor.diff:      ok.
   
   %%
  +%% Config
  +%%
  +
  +docsh_repo() ->
  +    "https://github.com/erszcz/docsh".
  +
  +%%
   %% Tests
   %%
   
  
positive.code:     catch _:_ -> false end.
  
  current_git_commit() ->
      {_, _, R} = sh("git rev-parse HEAD").
  
negative.code:     Name = container_name("docsh-linux-"),
      Args = [which("docker"), "run", "-t", "--rm", "--name", Name, "erlang:19-slim", "bash"],
      start_container(Name, Args),
      GitRef = current_git_commit(),
      try
          sh(within_container(Name, fetch(archive_url(GitRef), archive_file(GitRef)))),
          sh(within_container(Name, extract(archive_file(GitRef)))),
          ct:pal("last result: ~p", [sh(within_container(Name, ["ls ", repo_dir(GitRef)]))]),
          ct:fail("not implemented yet")
      after
          sh("docker stop " ++ Name)
  