Class: Chef::Knife::TagDelete

Inherits:
Chef::Knife show all
Defined in:
lib/chef/knife/tag_delete.rb

Instance Attribute Summary

Attributes inherited from Chef::Knife

#name_args, #ui

Instance Method Summary collapse

Methods inherited from Chef::Knife

#api_key, category, common_name, #configure_chef, #create_object, #delete_object, deps, #format_rest_error, guess_category, #highlight_config_error, #humanize_exception, #humanize_http_exception, inherited, #initialize, list_commands, load_commands, load_deps, msg, #noauth_rest, #parse_options, #read_config_file, reset_subcommands!, #rest, run, #run_with_pretty_exceptions, #server_url, #show_usage, snake_case_name, subcommand_category, subcommand_class_from, subcommand_loader, subcommands, subcommands_by_category, ui, unnamed?, #username

Methods included from Mixin::ConvertToClassName

#convert_to_class_name, #convert_to_snake_case, #filename_to_qualified_string, #snake_case_basename

Methods included from Mixin::PathSanity

#enforce_path_sanity

Constructor Details

This class inherits a constructor from Chef::Knife

Instance Method Details

#run ⇒ Object 



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# File 'lib/chef/knife/tag_delete.rb', line 33

def run
  name = @name_args[0]
  tags = @name_args[1..-1]

  if name.nil? || tags.nil? || tags.empty?
    show_usage
    ui.fatal("You must specify a node name and at least one tag.")
    exit 1
  end

  node = Chef::Node.load name
  deleted_tags = Array.new
  tags.each do |tag|
    unless node.tags.delete(tag).nil?
      deleted_tags << tag
    end
  end
  node.save
  message = if deleted_tags.empty?
              "Nothing has changed. The tags requested to be deleted do not exist."
            else
              "Deleted tags #{deleted_tags.join(", ")} for node #{name}."
            end
  ui.info(message)
end