class Hiera::Config

Public Class Methods

[](key) click to toggle source
# File lib/hiera/config.rb, line 87
def [](key)
  @config[key]
end
include?(key) click to toggle source
# File lib/hiera/config.rb, line 83
def include?(key)
  @config.include?(key)
end
load(source) click to toggle source

load takes a string or hash as input, strings are treated as filenames hashes are stored as data that would have been in the config file

Unless specified it will only use YAML as backend with a hierarchy of 'nodes/%{::trusted.certname}' and 'common', and with a console logger.

@return [Hash] representing the configuration.

# File lib/hiera/config.rb, line 12
def load(source)
  @config = {:backends => ["yaml"],
             :hierarchy => ["nodes/%{::trusted.certname}", "common"],
             :merge_behavior => :native }

  if source.is_a?(String)
    if File.exist?(source)
      config = begin
                 yaml_load_file(source)
               rescue TypeError => detail
                 case detail.message
                 when /no implicit conversion from nil to integer/
                   false
                 else
                   raise detail
                 end
               end
      @config.merge! config if config
    else
      raise "Config file #{source} not found"
    end
  elsif source.is_a?(Hash)
    @config.merge! source
  end

  @config[:backends] = [ @config[:backends] ].flatten

  if @config.include?(:logger)
    Hiera.logger = @config[:logger].to_s
  else
    @config[:logger] = "console"
    Hiera.logger = "console"
  end

  self.validate!

  @config
end
load_backends() click to toggle source
# File lib/hiera/config.rb, line 73
def load_backends
  @config[:backends].each do |backend|
    begin
      require "hiera/backend/#{backend.downcase}_backend"
    rescue LoadError => e
      raise "Cannot load backend #{backend}: #{e}"
    end
  end
end
validate!() click to toggle source
# File lib/hiera/config.rb, line 51
def validate!
  case @config[:merge_behavior]
  when :deep,'deep',:deeper,'deeper'
    begin
      require "deep_merge"
      require "deep_merge/rails_compat"
    rescue LoadError
      raise Hiera::Error, "Must have 'deep_merge' gem installed for the configured merge_behavior."
    end
  end
end

Private Class Methods

yaml_load_file(source) click to toggle source

::yaml_load_file directly delegates to YAML.load_file and is intended to be a private, internal method suitable for stubbing and mocking.

@return [Object] return value of {YAML.load_file}

# File lib/hiera/config.rb, line 68
def yaml_load_file(source)
  YAML.load_file(source)
end