hook_template.rb

{
  :before     => before,
  :after      => after,
  :ref        => ref,
  :commits    => [{
    :id        => commit.id,
    :message   => commit.message,
    :timestamp => commit.committed_date.xmlschema,
    :url       => commit_url,
    :added     => array_of_added_paths,
    :removed   => array_of_removed_paths,
    :modified  => array_of_modified_paths,
    :author    => {
      :name  => commit.author.name,
      :email => commit.author.email
    }
  }],
  :repository => {
    :name        => repository.name,
    :url         => repo_url,
    :pledgie     => repository.pledgie.id,
    :description => repository.description,
    :homepage    => repository.homepage,
    :watchers    => repository.watchers.size,
    :forks       => repository.forks.size,
    :private     => repository.private?,
    :owner => {
      :name  => repository.owner.login,
      :email => repository.owner.email
    }
  }
}

this seems to be outdated.