summaryrefslogtreecommitdiff
path: root/lib/chef/knife/core/status_presenter.rb
blob: 4451835962bf6c614258de6b25c8a73b521e5330 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
#
# Author:: Nicolas DUPEUX (<nicolas.dupeux@arkea.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 StatusPresenter
      module StatusFormattingOptions
        # :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::StatusPresenter
      # A customized presenter for Chef::Node objects. Supports variable-length
      # output formats for displaying node data
      class StatusPresenter < GenericPresenter

        def format(data)
          if parse_format_option == :json
            summarize_json(data)
          else
            super
          end
        end

        def summarize_json(list)
          result_list = []
          list.each do |node|
            result = {}

            result["name"] = node["name"] || node.name
            result["chef_environment"] = node["chef_environment"]
            ip = (node["ec2"] && node["ec2"]["public_ipv4"]) || node["ipaddress"]
            fqdn = (node["ec2"] && node["ec2"]["public_hostname"]) || node["fqdn"]
            result["ip"] = ip if ip
            result["fqdn"] = fqdn if fqdn
            result["run_list"] = node.run_list if config["run_list"]
            result["ohai_time"] = node["ohai_time"]
            result["platform"] = node["platform"] if node["platform"]
            result["platform_version"] = node["platform_version"] if node["platform_version"]

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

          Chef::JSONCompat.to_json_pretty(result_list)
        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(list)
          summarized=""
          list.each do |data|
            node = data
            # special case ec2 with their split horizon whatsis.
            ip = (node[:ec2] && node[:ec2][:public_ipv4]) || node[:ipaddress]
            fqdn = (node[:ec2] && node[:ec2][:public_hostname]) || node[:fqdn]
            name = node["name"] || node.name

            hours, minutes, _ = time_difference_in_hms(node["ohai_time"])
            hours_text   = "#{hours} hour#{hours == 1 ? ' ' : 's'}"
            minutes_text = "#{minutes} minute#{minutes == 1 ? ' ' : 's'}"
            run_list = "#{node['run_list']}" if config[:run_list]
            if hours > 24
              color = :red
              text = hours_text
            elsif hours >= 1
              color = :yellow
              text = hours_text
            else
              color = :green
              text = minutes_text
            end

            line_parts = Array.new
            line_parts << @ui.color(text, color) + " ago" << name
            line_parts << fqdn if fqdn
            line_parts << ip if ip
            line_parts << run_list if run_list

            if node["platform"]
              platform = node["platform"]
              if node["platform_version"]
                platform << " #{node['platform_version']}"
              end
              line_parts << platform
            end

            summarized=summarized + line_parts.join(", ") + ".\n"
          end
          summarized
        end

        def key(key_text)
          ui.color(key_text, :cyan)
        end

        # :nodoc:
        # TODO: this is duplicated from StatusHelper in the Webui. dedup.
        def time_difference_in_hms(unix_time)
          now = Time.now.to_i
          difference = now - unix_time.to_i
          hours = (difference / 3600).to_i
          difference = difference % 3600
          minutes = (difference / 60).to_i
          seconds = (difference % 60)
          return [hours, minutes, seconds]
        end

      end
    end
  end
end