Module: Beaker::DSL::Helpers::TKHelpers

Included in:
BeakerPuppet
Defined in:
lib/beaker-puppet/helpers/tk_helpers.rb

Overview

Convenience methods for modifying and reading TrapperKeeper configs

Instance Method Summary collapse

Instance Method Details

#modify_tk_config(host, config_file_path, options_hash, replace = false) ⇒ Object

Note:

TrapperKeeper config files can be HOCON, JSON, or Ini. We don’t

Modify the given TrapperKeeper config file.

particularly care which of these the file named by ‘config_file_path` on the SUT actually is, just that the contents can be parsed into a map.

Parameters:

  • host (Host) —

    A host object

  • options_hash (OptionsHash) —

    New hash which will be merged into the given TrapperKeeper config.

  • config_file_path (String) —

    Path to the TrapperKeeper config on the given host which is to be modified.

  • replace (Bool) (defaults to: false) —

    If set true, instead of updating the existing TrapperKeeper configuration, replace it entirely with the contents of the given hash.



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# File 'lib/beaker-puppet/helpers/tk_helpers.rb', line 26

def modify_tk_config(host, config_file_path, options_hash, replace = false)
  return nil if options_hash.empty?

  new_hash = Beaker::Options::OptionsHash.new

  if replace
    new_hash.merge!(options_hash)
  else
    raise "Error: #{config_file_path} does not exist on #{host}" unless host.file_exist?(config_file_path)

    file_string = host.exec(Command.new("cat #{config_file_path}")).stdout

    begin
      tk_conf_hash = read_tk_config_string(file_string)
    rescue RuntimeError
      raise "Error reading trapperkeeper config: #{config_file_path} at host: #{host}"
    end

    new_hash.merge!(tk_conf_hash)
    new_hash.merge!(options_hash)
  end

  file_string = JSON.pretty_generate(new_hash)
  create_remote_file host, config_file_path, file_string
end