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#!/usr/bin/env ruby

# Script to clean up stored configs for (a) given host(s)
#
# Credits:
# Script was taken from http://reductivelabs.com/trac/puppet/attachment/wiki/UsingStoredConfiguration/kill_node_in_storedconfigs_db.rb (link no longer valid),
# which haven been initially posted by James Turnbull
# duritong adapted and improved the script a bit.

require 'getoptlong'
config = '/etc/puppet/puppet.conf'

def printusage(error_code)
  puts "Usage: #{$0} [ list of hostnames as stored in hosts table ]"
  puts "\n Options:"
  puts "--config <puppet config file>"
  exit(error_code)
end


      opts = GetoptLong.new(

    [ "--config",     "-c",   GetoptLong::REQUIRED_ARGUMENT ],
    [ "--help",        "-h",   GetoptLong::NO_ARGUMENT ],
    [ "--usage",       "-u",   GetoptLong::NO_ARGUMENT ],

    [ "--version",     "-v",   GetoptLong::NO_ARGUMENT ]
)

begin
  opts.each do |opt, arg|
    case opt
    when "--config"
      config = arg

    when "--help"
      printusage(0)

    when "--usage"
      printusage(0)

    when "--version"
      puts "#{Puppet.version}"
      exit
    end
  end
rescue GetoptLong::InvalidOption => detail
  $stderr.puts "Try '#{$0} --help'"
  exit(1)
end

printusage(1) unless ARGV.size > 0

require 'puppet/rails'
Puppet[:config] = config
Puppet.parse_config
pm_conf = Puppet.settings.instance_variable_get(:@values)[:master]

adapter = pm_conf[:dbadapter]
args = {:adapter => adapter, :log_level => pm_conf[:rails_loglevel]}

case adapter
  when "sqlite3"
    args[:dbfile] = pm_conf[:dblocation]
  when "mysql", "postgresql"
    args[:host]     = pm_conf[:dbserver] unless pm_conf[:dbserver].to_s.empty?
    args[:username] = pm_conf[:dbuser] unless pm_conf[:dbuser].to_s.empty?
    args[:password] = pm_conf[:dbpassword] unless pm_conf[:dbpassword].to_s.empty?
    args[:database] = pm_conf[:dbname] unless pm_conf[:dbname].to_s.empty?
    args[:port]     = pm_conf[:dbport] unless pm_conf[:dbport].to_s.empty?
    socket          = pm_conf[:dbsocket]
    args[:socket]   = socket unless socket.to_s.empty?
  else
    raise ArgumentError, "Invalid db adapter #{adapter}"
end

args[:database] = "puppet" unless not args[:database].to_s.empty?

ActiveRecord::Base.establish_connection(args)

ARGV.each { |hostname|
  if @host = Puppet::Rails::Host.find_by_name(hostname.strip)
    print "Killing #{hostname}..."
    $stdout.flush
    @host.destroy
    puts "done."
  else
    puts "Can't find host #{hostname}."
  end
}
exit 0