Class: Hotdog::Commands::Hosts

Inherits:
BaseCommand show all
Defined in:
lib/hotdog/commands/hosts.rb

Direct Known Subclasses

Ls

Constant Summary

Constants inherited from BaseCommand

BaseCommand::PERSISTENT_DB

Instance Attribute Summary

Attributes inherited from BaseCommand

#application, #logger, #options

Instance Method Summary collapse

Methods inherited from BaseCommand

#execute, #fixed_string?, #initialize

Constructor Details

This class inherits a constructor from Hotdog::Commands::BaseCommand

Instance Method Details

#run(args = []) ⇒ Object 



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# File 'lib/hotdog/commands/hosts.rb', line 6

def run(args=[])
  args = optparse.parse(args)
  if args.empty?
    result = execute("SELECT DISTINCT host_id FROM hosts_tags").to_a.reduce(:+)
  else
    result = args.map { |host_name|
      if glob?(host_name)
        execute(<<-EOS, host_name).map { |row| row.first }
          SELECT DISTINCT hosts_tags.host_id FROM hosts_tags
            INNER JOIN hosts ON hosts_tags.host_id = hosts.id
              WHERE LOWER(hosts.name) GLOB LOWER(?);
        EOS
      else
        execute(<<-EOS, host_name).map { |row| row.first }
          SELECT DISTINCT hosts_tags.host_id FROM hosts_tags
            INNER JOIN hosts ON hosts_tags.host_id = hosts.id
              WHERE LOWER(hosts.name) = LOWER(?);
        EOS
      end
    }.reduce(:+)
  end
  if 0 < result.length
    result, fields = get_hosts(result)
    STDOUT.print(format(result, fields: fields))
    logger.info("found %d host(s)." % result.length)
  else
    STDERR.puts("no match found: #{args.join(" ")}")
    exit(1)
  end
end