Class: VagrantPlugins::CommandDns::Action::Host::Destroy

Inherits:
Object
  • Object
show all
Defined in:
lib/vagrant-command-dns/action/host/destroy.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, env) ⇒ Destroy

Returns a new instance of Destroy.



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# File 'lib/vagrant-command-dns/action/host/destroy.rb', line 9

def initialize(app, env)
  @app    = app
  @logger = Log4r::Logger.new('vagrant_command_dns::action::host::destroy')
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/vagrant-command-dns/action/host/destroy.rb', line 14

def call(env)
  unless env[:machine].config.dns.__skip
    if env[:machine].state.id != :running
      raise Errors::MachineState, state: 'running'
    end
  end

  # read the file into memory to save reading it for each alias
  lines = []
  File.open('/etc/hosts', 'r') do |file|
    file.each_line do |line|
      lines.push(line.chomp)
    end
  end

  destroyed = {}
  env[:record_map].each do |hostname, ip|
    if env[:machine].config.dns.__skip
      record_pattern = Regexp.new('^\s*[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\s+' + hostname)
    else
      record_pattern = Regexp.new('^\s*' + ip + '\s+' + hostname)
    end

    lines.each do |line|
      if line.match(/#{record_pattern}/)
        lines.delete(line)
        destroyed[hostname] = ip
      end
    end
  end

  if destroyed.length > 0
    content = lines.join("\n").strip
    if system("sudo sh -c 'echo \"#{content}\" > /etc/hosts'")
      destroyed.each do |hostname, ip|
        env[:ui].info(I18n.t('vagrant_command_dns.command.host.destroy_success', hostname: hostname))
      end
    else
      env[:ui].error(I18n.t('vagrant_command_dns.command.host.edit_error'))
    end
  end

  @app.call(env)
end