zuazo/chef-encrypted-attributes

# encoding: UTF-8
#
# Author:: Xabier de Zuazo (<xabier@zuazo.org>)
# Copyright:: Copyright (c) 2014 Onddo Labs, SL.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require 'chef/knife/core/encrypted_attribute_base'
require 'chef/knife/core/encrypted_attribute_depends'

class Chef
  class Knife
    # knife encrypted attribute show command.
    #
    # ```
    # $ knife encrypted attribute show NODE ATTRIBUTE (options)
    # ```
    class EncryptedAttributeShow < Core::EncryptedAttributeBase
      include Knife::Core::EncryptedAttributeDepends

      banner 'knife encrypted attribute show NODE ATTRIBUTE (options)'

      # (see EncryptedAttributeBase#assert_valid_args)
      # @raise [ArgumentError] if the attribute path format is wrong.
      def assert_valid_args
        assert_attribute_exists(@node_name, @attr_ary)
      end

      # Runs knife command.
      #
      # @return void
      # @raise [ArgumentError] if the attribute path format is wrong.
      # @raise [UnacceptableEncryptedAttributeFormat] if encrypted attribute
      #   format is wrong.
      # @raise [UnsupportedEncryptedAttributeFormat] if encrypted attribute
      #   format is not supported or unknown.
      # @raise [SearchFailure] if there is a Chef search error.
      # @raise [SearchFatalError] if the Chef search response is wrong.
      # @raise [InvalidSearchKeys] if search keys structure is wrong.
      def run
        parse_args

        enc_attr =
          Chef::EncryptedAttribute.load_from_node(@node_name, @attr_ary)
        output(enc_attr)
      end
    end
  end
end