gitlabhq/gitlab-ci

module UserHelper
  def user_avatar_url(user = nil, size = nil, default = 'identicon')
    size = 40 if size.nil? || size <= 0

    if user.blank? || user.avatar_url.blank?
      'no_avatar.png'
    elsif /^(http(s?):\/\/(www|secure)\.gravatar\.com\/avatar\/(\w*))/ =~ user.avatar_url
      Regexp.last_match[0] + "?s=#{size}&d=#{default}"
    else
      user.avatar_url
    end
  end
end