Class: Hiera::Backend::Eyaml::Subcommands::Decrypt

Inherits:
Hiera::Backend::Eyaml::Subcommand show all
Defined in:
lib/hiera/backend/eyaml/subcommands/decrypt.rb

Class Method Summary collapse

Methods inherited from Hiera::Backend::Eyaml::Subcommand

all_options, attach_option, find, hidden?, load_config_file, parse, prettyname

Class Method Details

.descriptionObject


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# File 'lib/hiera/backend/eyaml/subcommands/decrypt.rb', line 33

def self.description
  "decrypt some data"
end

.executeObject


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# File 'lib/hiera/backend/eyaml/subcommands/decrypt.rb', line 56

def self.execute
  parser = Parser::ParserFactory.encrypted_parser
  tokens = parser.parse(Eyaml::Options[:input_data])
  case Eyaml::Options[:source]
    when :eyaml
      decrypted = tokens.map{ |token| token.to_decrypted }
      decrypted.join
    else
      yamled = false
      decrypted = tokens.map{ |token|
        case token.class.name
          when /::EncToken$/
            if (yamled) then
              yamled = false
              token.to_plain_text.match(/[\r\n]/) ? "|\n  " + token.to_plain_text.gsub(/([\r\n]+)/, '\1  ') : token.to_plain_text
            else
              token.to_plain_text
            end
          else
            yamled = true
            token.match
        end
      }
      decrypted.join
  end
end

.optionsObject


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# File 'lib/hiera/backend/eyaml/subcommands/decrypt.rb', line 14

def self.options
  [{:name => :string,
    :description => "Source input is a string provided as an argument",
    :short => 's', 
    :type => :string},
   {:name => :file,
    :description => "Source input is a regular file",
    :short => 'f',
    :type => :string},
   {:name => :eyaml,
    :description => "Source input is an eyaml file",
    :short => 'e',
    :type => :string},
   {:name => :stdin,
    :description => "Source input is taken from stdin",
    :short => :none}
  ]
end

.validate(options) ⇒ Object


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# File 'lib/hiera/backend/eyaml/subcommands/decrypt.rb', line 37

def self.validate options
  sources = [:eyaml, :password, :string, :file, :stdin].collect {|x| x if options[x]}.compact
  Optimist::die "You must specify a source" if sources.count.zero?
  Optimist::die "You can only specify one of (#{sources.join(', ')})" if sources.count > 1
  options[:source] = sources.first

  options[:input_data] = case options[:source]
  when :stdin
    STDIN.read
  when :string
    options[:string]
  when :file
    File.read options[:file]
  when :eyaml
    File.read options[:eyaml]
  end
  options
end