class Chef::Knife::Core::NodePresenter

Chef::Knife::Core::NodePresenter

A customized presenter for Chef::Node objects. Supports variable-length
output formats for displaying node data

Public Instance Methods

format(data) click to toggle source
# File lib/chef/knife/core/node_presenter.rb, line 56
def format(data)
  if parse_format_option == :json
    summarize_json(data)
  else
    super
  end
end
key(key_text) click to toggle source
# File lib/chef/knife/core/node_presenter.rb, line 152
def key(key_text)
  ui.color(key_text, :cyan)
end
summarize(data) click to toggle source

Converts a Chef::Node object to a string suitable for output to a terminal. If config or config are set the volume of output is adjusted accordingly. Uses colors if enabled in the ui object.

# File lib/chef/knife/core/node_presenter.rb, line 95
        def summarize(data)
          if data.kind_of?(Chef::Node)
            node = data
            # special case ec2 with their split horizon whatsis.
            ip = (node[:ec2] && node[:ec2][:public_ipv4]) || 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
summarize_json(data) click to toggle source
# File lib/chef/knife/core/node_presenter.rb, line 64
def summarize_json(data)
  if data.kind_of?(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