class Tetra::ChangeSourcesSubcommand

def execute
  checking_exceptions do
    # Ensure the user provided an archive OR explicitly opted out
    if source_archive.nil? && !no_archive?
      signal_usage_error "please specify a source archive file or use \"--no-archive\" (see SPECIAL_CASES.md)."
    end
    project = Tetra::Project.new(".")
    ensure_dry_running(:is_not_in_progress, project) do
      if !no_archive?
        # CASE 1: Updating from a new archive file
        full_archive_path = File.expand_path(source_archive)
        project.commit_source_archive(full_archive_path, message)
        puts "New sources committed."
        puts "Please delete any stale source archives from packages/ before proceeding."
      else
        # CASE 2: Updating from manual changes in src/
        project.commit_sources(message, true)
        puts "New sources committed."
        puts "Please copy source archive(s) corresponding to src/ in packages/ before proceeding."
      end
    end
  end
end