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#
# Author:: Daniel DeLeo (<dan@opscode.com>)
# Copyright:: Copyright (c) 2011 Opscode, 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 'chef/knife/core/text_formatter'
require 'chef/knife/core/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
# :nodoc:
# 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
#==Chef::Knife::Core::NodePresenter
# 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.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
# 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.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
def key(key_text)
ui.color(key_text, :cyan)
end
end
end
end
end
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