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February 13, 2011 05:15
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| #!/usr/bin/env ruby | |
| require 'benchmark' | |
| require 'optparse' | |
| require 'pp' | |
| require 'rubygems' | |
| require 'yajl' | |
| require 'chef/rest' | |
| module CGrep | |
| class Config | |
| class Adapter | |
| def initialize(file) | |
| @file = file | |
| @config = {} | |
| end | |
| def parse | |
| original_verbose = $VERBOSE | |
| $VERBOSE = nil | |
| instance_eval(IO.read(@file)) | |
| $VERBOSE = original_verbose | |
| @config | |
| end | |
| def method_missing(m,*args, &block) | |
| if args.empty? | |
| @config[m] | |
| elsif | |
| args.size == 1 | |
| @config[m] = args.first | |
| else | |
| super | |
| end | |
| end | |
| end | |
| def find_config | |
| dir_specific = File.expand_path('.chef/knife.rb') | |
| home_config = File.expand_path('~/.chef/knife.rb') | |
| if File.exist?(dir_specific) | |
| dir_specific | |
| elsif File.exist?(home_config) | |
| home_config | |
| else | |
| raise "No config file available" | |
| end | |
| end | |
| def apply_config_file | |
| file = @config_file || find_config | |
| Adapter.new(file).parse.each do |key,val| | |
| setter = "#{key}=".to_sym | |
| send(setter, val) if respond_to?(setter) | |
| end | |
| end | |
| attr_accessor :info | |
| attr_accessor :config_file | |
| attr_accessor :chef_server_url | |
| attr_accessor :client_key | |
| attr_accessor :node_name | |
| end | |
| module CLI | |
| @config = Config.new | |
| @option_parser = OptionParser.new do |o| | |
| o.banner = 'Usage: cgrep [OPTIONS] QUERY' | |
| o.on('-I', '--info', 'include ID, IP, tags, and roles in the output') do | |
| @config.info = true | |
| end | |
| o.on('-c', '--config FILE', 'knife config file to use') do |c| | |
| @config.config_file = c | |
| end | |
| o.on_tail('-h', '--help') do | |
| puts o | |
| exit 1 | |
| end | |
| end | |
| def self.config | |
| @config | |
| end | |
| def self.parse!(argv) | |
| @option_parser.parse!(argv) | |
| end | |
| end | |
| class Fuzzyizer | |
| attr_reader :query_string | |
| alias :q :query_string | |
| def initialize(query_string) | |
| @query_string = query_string | |
| end | |
| def fuzzy_q | |
| "tags:*#{q}* OR roles:*#{q}* OR fqdn:*#{q}* OR addresses:*#{q}*" | |
| end | |
| def escaped_q | |
| URI.escape(fuzzy_q) | |
| end | |
| end | |
| class ApiRequest < Chef::REST | |
| def search(what, query) | |
| noinflate_request(:GET, "/search/#{what}?q=#{query}") | |
| end | |
| def noinflate_request(method, url, headers={}) | |
| url = URI.parse("#{@url}/#{url}") | |
| headers = build_headers(method, url, headers, nil) | |
| retriable_rest_request(method, url, nil, headers) do |rest_request| | |
| response = rest_request.call {|r| r.read_body} | |
| if response.kind_of?(Net::HTTPSuccess) | |
| if response['content-type'] =~ /json/ | |
| x = Yajl::Parser.parse(response.body.chomp) | |
| else | |
| response.body | |
| end | |
| else | |
| if response['content-type'] =~ /json/ | |
| exception = Yajl::Parser.parse(response.body) | |
| msg = "HTTP Request Returned #{response.code} #{response.message}: " | |
| msg << (exception["error"].respond_to?(:join) ? exception["error"].join(", ") : exception["error"].to_s) | |
| STDERR.puts(msg) | |
| end | |
| response.error! | |
| end | |
| end | |
| end | |
| end | |
| class NodeFormatter | |
| def initialize(node, config) | |
| @node = node | |
| @config = config | |
| end | |
| def to_s | |
| buf = '' | |
| buf << @node["automatic"]["fqdn"] | |
| if @config.info | |
| buf << "\n" | |
| buf << " Name: #{@node['name']}\n" | |
| buf << " IP: #{@node['automatic']['ipaddress']}\n" | |
| buf << " Tags: #{@node["normal"]['tags'].uniq.sort.join(',')}\n" unless @node['normal']['tags'].empty? | |
| buf << " Roles: #{@node['automatic']['roles'].sort.join(',')}\n" | |
| end | |
| buf | |
| end | |
| end | |
| class Search | |
| def initialize(argv) | |
| @query = CLI.parse!(argv).first | |
| @config = CLI.config | |
| end | |
| def fuzzy_q | |
| Fuzzyizer.new(@query).escaped_q | |
| end | |
| def run | |
| @config.apply_config_file | |
| require 'benchmark' | |
| hits = ApiRequest.new(@config.chef_server_url, @config.node_name, @config.client_key).search(:node, fuzzy_q)["rows"] | |
| hits.sort! {|n1,n2| n1["automatic"]["fqdn"] <=> n2["automatic"]["fqdn"]} | |
| hits.each {|n| puts NodeFormatter.new(n, @config)} | |
| end | |
| end | |
| end | |
| unless defined?(Object::Ohai) | |
| Ohai = Module.new | |
| Ohai::Config = Hash.new {|h,k| h[k] = []} | |
| end | |
| #Chef::Knife.new([]).configure_chef | |
| CGrep::Search.new(ARGV).run |
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