Class: KnifePreflight::Preflight

Inherits:
Chef::Knife
  • Object
show all
Includes:
Chef::Knife::Core::NodeFormattingOptions
Defined in:
lib/chef/knife/preflight.rb

Instance Method Summary collapse

Instance Method Details

#perform_query(raw_query, type = 'node') ⇒ Object 



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# File 'lib/chef/knife/preflight.rb', line 68

def perform_query(raw_query, type='node')
  q = Chef::Search::Query.new

  if type == 'node'
    cookbook = raw_query.split("::").first
    unconstrained_env_search = Chef::Search::Query.new
    unconstrained_envs = unconstrained_env_search.search('environment', "NOT cookbook_versions:#{cookbook}").first.map{|e|e.name}
  end

  # strip default if it exists to simplify logic
  raw_query = raw_query.sub("::default", "")
  escaped_query = raw_query.sub( "::", "\\:\\:")

  if !raw_query.include? "::"
    if type == 'node'
      search_query = "recipes:#{escaped_query} OR recipes:#{escaped_query}\\:\\:default"
      search_query += " OR " + search_query.gsub("recipes", "last_seen_recipes")
    else
      search_query = "run_list:recipe\\[#{escaped_query}\\] OR run_list:recipe\\[#{escaped_query}\\:\\:default\\]"
    end
    ui.msg("Searching for #{type}s containing #{raw_query} OR #{raw_query}::default in their expanded run_list or added via include_recipe...\n")
  else
    if type == 'node'
      search_query = "recipes:#{escaped_query}"
      search_query += " OR " + search_query.gsub("recipes", "last_seen_recipes")
    else
      search_query = "run_list:recipe\\[#{escaped_query}\\]"
    end
    ui.msg("Searching for #{type}s containing #{raw_query} in their expanded run_list or added via include_recipe......\n")
  end

  query = URI.escape(search_query, Regexp.new("[^#{URI::PATTERN::UNRESERVED}]"))

  result_items = []
  result_count = 0

  rows = config[:rows]
  start = config[:start]
  begin
    q.search(type, query, config[:sort], start, rows) do |item|
      formatted_item = format_for_display(item)
      if formatted_item.respond_to?(:has_key?) && !formatted_item.has_key?('id')
        formatted_item.normal['id'] = item.has_key?('id') ? item['id'] : item.name
      end
      result_items << formatted_item
      result_count += 1
    end
  rescue Net::HTTPServerException => e
    msg = Chef::JSONCompat.from_json(e.response.body)["error"].first
    ui.error("knife preflight failed: #{msg}")
    exit 1
  end

  if ui.interchange?
    output({:results => result_count, :rows => result_items})
  else
    ui.msg "#{result_count} #{type.capitalize}s found"
    ui.msg("\n")
    result_items.each do |item|
      if item.instance_of?(Chef::Node)
        output("#{item.name}#{unconstrained_envs.include?(item.chef_environment) ? " - in environment #{item.chef_environment}, no version constraint for #{cookbook} cookbook" : nil}")
      else
        output(item.name)
      end
    end
  end

  ui.msg("\n")
  ui.msg("\n")
  return result_count
end

#run ⇒ Object 



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# File 'lib/chef/knife/preflight.rb', line 48

def run
  if config[:query] && @name_args[0]
    ui.error "please specify query as an argument or an option via -q, not both"
    ui.msg opt_parser
    exit 1
  end
  raw_query = config[:query] || @name_args[0]
  if !raw_query || raw_query.empty?
    ui.error "no query specified"
    ui.msg opt_parser
    exit 1
  end

  result_count_nodes = perform_query(raw_query, 'node')

  result_count_roles = perform_query(raw_query, 'role')

  ui.msg("Found #{result_count_nodes} nodes and #{result_count_roles} roles using the specified search criteria")
end