Class: Chef::Knife::Core::NodePresenter

Inherits:
GenericPresenter show all
Defined in:
lib/chef/knife/core/node_presenter.rb

Overview

Chef::Knife::Core::NodePresenter

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

Instance Attribute Summary

Attributes inherited from GenericPresenter

#config, #ui

Instance Method Summary collapse

Methods inherited from GenericPresenter

#extract_nested_value, #format_cookbook_list_for_display, #format_for_display, #format_list_for_display, #initialize, #interchange?, #parse_format_option, #text_format

Constructor Details

This class inherits a constructor from Chef::Knife::Core::GenericPresenter

Instance Method Details

#format(data) ⇒ Object


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# 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) ⇒ Object


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# File 'lib/chef/knife/core/node_presenter.rb', line 128

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

#summarize(data) ⇒ Object

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 the ui object.


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# File 'lib/chef/knife/core/node_presenter.rb', line 90

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)}
#{key('Environment:')} #{node.chef_environment}
#{key('FQDN:')}        #{node[:fqdn]}
#{key('IP:')}          #{ip}
#{key('Run List:')}    #{node.run_list}
#{key('Roles:')}       #{Array(node[:roles]).join(', ')}
#{key('Recipes:')}     #{Array(node[:recipes]).join(', ')}
#{key('Platform:')}    #{node[:platform]} #{node[:platform_version]}
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) ⇒ Object


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# 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
    result["chef_environment"] = node.chef_environment
    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