Class: Chef::Knife::NodeEditor

Inherits:
Object
  • Object
show all
Defined in:
lib/chef/knife/core/node_editor.rb

Instance Method Summary collapse

Constructor Details

#initialize(node, ui, config) ⇒ NodeEditor

Returns a new instance of NodeEditor.

Parameters:



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# File 'lib/chef/knife/core/node_editor.rb', line 32

def initialize(node, ui, config)
  @node, @ui, @config = node, ui, config
end

Instance Method Details

#apply_updates(updated_data) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/chef/knife/core/node_editor.rb', line 98

def apply_updates(updated_data)
  if node.name && node.name != updated_data["name"]
    ui.warn "Changing the name of a node results in a new node being created, #{node.name} will not be modified or removed."
    ui.confirm "Proceed with creation of new node"
  end

  data = updated_data.dup

  unless config[:all_attributes]
    data["automatic"] = node.automatic_attrs
    data["default"] = node.default_attrs
    data["override"] = node.override_attrs
  end

  @updated_node = Node.from_hash(data)
end

#edit_node ⇒ Chef::Node

Opens the node data (as JSON) in the user’s editor and returns a new Node reflecting the user’s changes.

Returns:



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# File 'lib/chef/knife/core/node_editor.rb', line 40

def edit_node
  abort "You specified the --disable_editing option, nothing to edit" if config[:disable_editing]
  assert_editor_set!

  updated_node_data = ui.edit_hash(view)
  apply_updates(updated_node_data)
  @updated_node
end

#updated? ⇒ Array<String>, false

Returns an array of the names of properties that have been changed or false if none were changed.

Returns:

  • (Array<String>) —

    if any properties have been changed.

  • (false) —

    if no properties have been changed.



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# File 'lib/chef/knife/core/node_editor.rb', line 54

def updated?
  return false if @updated_node.nil?

  pristine_copy = Chef::JSONCompat.parse(Chef::JSONCompat.to_json(node))
  updated_copy  = Chef::JSONCompat.parse(Chef::JSONCompat.to_json(@updated_node))

  updated_properties = %w{
    name
    chef_environment
    automatic
    default
    normal
    override
    policy_name
    policy_group
    run_list
  }.reject do |key|
    pristine_copy[key] == updated_copy[key]
  end

  updated_properties.any? && updated_properties
end

#view ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/chef/knife/core/node_editor.rb', line 78

def view
  result = {
    "name" => node.name,
    "chef_environment" => node.chef_environment,
    "normal" => node.normal_attrs,
    "policy_name" => node.policy_name,
    "policy_group" => node.policy_group,
    "run_list" => node.run_list,
  }

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

  result
end