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File Manager

Path: /opt/chef/embedded/lib/ruby/gems/2.7.0/gems/chef-16.3.45/lib/chef/knife/core/

Viewing File: node_presenter.rb

#
# Author:: Daniel DeLeo (<dan@chef.io>)
# Copyright:: Copyright (c) Chef Software Inc.
# 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_relative "text_formatter"
require_relative "generic_presenter"

class Chef
  class Knife
    module Core

      # This module may be included into a knife subcommand class to automatically
      # add configuration options used by the NodePresenter
      module NodeFormattingOptions
        # @private
        # Would prefer to do this in a rational way, but can't be done b/c of
        # Mixlib::CLI's design :(
        def self.included(includer)
          includer.class_eval do
            option :medium_output,
              short: "-m",
              long: "--medium",
              boolean: true,
              default: false,
              description: "Include normal attributes in the output"

            option :long_output,
              short: "-l",
              long: "--long",
              boolean: true,
              default: false,
              description: "Include all attributes in the output"
          end
        end
      end

      # A customized presenter for Chef::Node objects. Supports variable-length
      # output formats for displaying node data
      class NodePresenter < GenericPresenter

        def format(data)
          if parse_format_option == :json
            summarize_json(data)
          else
            super
          end
        end

        def summarize_json(data)
          if data.is_a?(Chef::Node)
            node = data
            result = {}

            result["name"] = node.name
            if node.policy_name.nil? && node.policy_group.nil?
              result["chef_environment"] = node.chef_environment
            else
              result["policy_name"] = node.policy_name
              result["policy_group"] = node.policy_group
            end
            result["run_list"] = node.run_list
            result["normal"] = node.normal_attrs

            if config[:long_output]
              result["default"]   = node.default_attrs
              result["override"]  = node.override_attrs
              result["automatic"] = node.automatic_attrs
            end

            Chef::JSONCompat.to_json_pretty(result)
          else
            Chef::JSONCompat.to_json_pretty(data)
          end
        end

        # Converts a Chef::Node object to a string suitable for output to a
        # terminal. If config[:medium_output] or config[:long_output] are set
        # the volume of output is adjusted accordingly. Uses colors if enabled
        # in the ui object.
        def summarize(data)
          if data.is_a?(Chef::Node)
            node = data
            # special case clouds with their split horizon thing.
            ip = (node[:cloud] && node[:cloud][:public_ipv4_addrs] && node[:cloud][:public_ipv4_addrs].first) || node[:ipaddress]

            summarized = <<~SUMMARY
              #{ui.color("Node Name:", :bold)}   #{ui.color(node.name, :bold)}
            SUMMARY
            show_policy = !(node.policy_name.nil? && node.policy_group.nil?)
            if show_policy
              summarized << <<~POLICY
                #{key("Policy Name:")}  #{node.policy_name}
                #{key("Policy Group:")} #{node.policy_group}
              POLICY
            else
              summarized << <<~ENV
                #{key("Environment:")} #{node.chef_environment}
              ENV
            end
            summarized << <<~SUMMARY
              #{key("FQDN:")}        #{node[:fqdn]}
              #{key("IP:")}          #{ip}
              #{key("Run List:")}    #{node.run_list}
            SUMMARY
            unless show_policy
              summarized << <<~ROLES
                #{key("Roles:")}       #{Array(node[:roles]).join(", ")}
              ROLES
            end
            summarized << <<~SUMMARY
              #{key("Recipes:")}     #{Array(node[:recipes]).join(", ")}
              #{key("Platform:")}    #{node[:platform]} #{node[:platform_version]}
              #{key("Tags:")}        #{node.tags.join(", ")}
            SUMMARY
            if config[:medium_output] || config[:long_output]
              summarized += <<~MORE
                #{key("Attributes:")}
                #{text_format(node.normal_attrs)}
              MORE
            end
            if config[:long_output]
              summarized += <<~MOST
                #{key("Default Attributes:")}
                #{text_format(node.default_attrs)}
                #{key("Override Attributes:")}
                #{text_format(node.override_attrs)}
                #{key("Automatic Attributes (Ohai Data):")}
                #{text_format(node.automatic_attrs)}
              MOST
            end
            summarized
          else
            super
          end
        end

        def key(key_text)
          ui.color(key_text, :cyan)
        end

      end
    end
  end
end