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#
# Author:: Adam Jacob (<adam@chef.io>)
# Copyright:: Copyright 2009-2017, Chef Software 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"
require "chef/knife/core/node_presenter"
require "addressable/uri"
class Chef
class Knife
class Search < Knife
include Knife::Core::MultiAttributeReturnOption
deps do
require "chef/node"
require "chef/environment"
require "chef/api_client"
require "chef/search/query"
end
include Knife::Core::NodeFormattingOptions
banner "knife search INDEX QUERY (options)"
option :start,
short: "-b ROW",
long: "--start ROW",
description: "The row to start returning results at.",
default: 0,
proc: lambda { |i| i.to_i }
option :rows,
short: "-R INT",
long: "--rows INT",
description: "The number of rows to return.",
default: nil,
proc: lambda { |i| i.to_i }
option :run_list,
short: "-r",
long: "--run-list",
description: "Show only the run list."
option :id_only,
short: "-i",
long: "--id-only",
description: "Show only the ID of matching objects."
option :query,
short: "-q QUERY",
long: "--query QUERY",
description: "The search query; useful to protect queries starting with -."
option :filter_result,
short: "-f FILTER",
long: "--filter-result FILTER",
description: "Only return specific attributes of the matching objects; for example: \"ServerName=name, Kernel=kernel.version\"."
def run
read_cli_args
if @type == "node"
ui.use_presenter Knife::Core::NodePresenter
end
q = Chef::Search::Query.new
result_items = []
result_count = 0
search_args = Hash.new
search_args[:fuzz] = true
search_args[:start] = config[:start] if config[:start]
search_args[:rows] = config[:rows] if config[:rows]
if config[:filter_result]
search_args[:filter_result] = create_result_filter(config[:filter_result])
elsif (not ui.config[:attribute].nil?) && (not ui.config[:attribute].empty?)
search_args[:filter_result] = create_result_filter_from_attributes(ui.config[:attribute])
elsif config[:id_only]
search_args[:filter_result] = create_result_filter_from_attributes([])
end
begin
q.search(@type, @query, search_args) do |item|
formatted_item = Hash.new
if config[:id_only]
formatted_item = format_for_display({ "id" => item["__display_name"] })
elsif item.is_a?(Hash)
# doing a little magic here to set the correct name
formatted_item[item["__display_name"]] = item.reject { |k| k == "__display_name" }
else
formatted_item = format_for_display(item)
end
result_items << formatted_item
result_count += 1
end
rescue Net::HTTPServerException => e
msg = Chef::JSONCompat.from_json(e.response.body)["error"].first
ui.error("knife search failed: #{msg}")
exit 99
end
if ui.interchange?
output({ results: result_count, rows: result_items })
else
ui.log "#{result_count} items found"
ui.log("\n")
result_items.each do |item|
output(item)
unless config[:id_only]
ui.msg("\n")
end
end
end
# return a "failure" code to the shell so that knife search can be used in pipes similar to grep
exit 1 if result_count == 0
end
def read_cli_args
if config[:query]
if @name_args[1]
ui.error "Please specify query as an argument or an option via -q, not both"
ui.msg opt_parser
exit 1
end
@type = name_args[0]
@query = config[:query]
else
case name_args.size
when 0
ui.error "No query specified"
ui.msg opt_parser
exit 1
when 1
@type = "node"
@query = name_args[0]
when 2
@type = name_args[0]
@query = name_args[1]
end
end
end
# This method turns a set of key value pairs in a string into the appropriate data structure that the
# chef-server search api is expecting.
# expected input is in the form of:
# -f "return_var1=path.to.attribute, return_var2=shorter.path"
#
# a more concrete example might be:
# -f "env=chef_environment, ruby_platform=languages.ruby.platform"
#
# The end result is a hash where the key is a symbol in the hash (the return variable)
# and the path is an array with the path elements as strings (in order)
# See lib/chef/search/query.rb for more examples of this.
def create_result_filter(filter_string)
final_filter = Hash.new
filter_string.delete!(" ")
filters = filter_string.split(",")
filters.each do |f|
return_id, attr_path = f.split("=")
final_filter[return_id.to_sym] = attr_path.split(".")
end
final_filter
end
def create_result_filter_from_attributes(filter_array)
final_filter = Hash.new
filter_array.each do |f|
final_filter[f] = f.split(".")
end
# adding magic filter so we can actually pull the name as before
final_filter["__display_name"] = [ "name" ]
final_filter
end
end
end
end
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