Class: Chef::Knife::Core::StatusPresenter

Inherits:
GenericPresenter show all
Defined in:
lib/chef/knife/core/status_presenter.rb

Overview

Chef::Knife::Core::StatusPresenter

A customized presenter for Chef::Node objects. Supports variable-length output formats for displaying node data

Instance Attribute Summary

Attributes inherited from GenericPresenter

#config, #ui

Instance Method Summary collapse

Methods inherited from GenericPresenter

#extract_nested_value, #format_cookbook_list_for_display, #format_data_subset_for_display, #format_for_display, #format_list_for_display, #formatting_subset_of_data?, #initialize, #interchange?, #name_or_id_for, #parse_format_option, #text_format

Constructor Details

This class inherits a constructor from Chef::Knife::Core::GenericPresenter

Instance Method Details

#format(data) ⇒ Object 



56
57
58
59
60
61
62
 
# File 'lib/chef/knife/core/status_presenter.rb', line 56

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

#key(key_text) ⇒ Object 



138
139
140
 
# File 'lib/chef/knife/core/status_presenter.rb', line 138

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

#summarize(list) ⇒ Object

Converts a Chef::Node object to a string suitable for output to a terminal. If config or config are set the volume of output is adjusted accordingly. Uses colors if enabled in the ui object.



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
 
# File 'lib/chef/knife/core/status_presenter.rb', line 95

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

#summarize_json(list) ⇒ Object 



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
 
# File 'lib/chef/knife/core/status_presenter.rb', line 64

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

#time_difference_in_hms(unix_time) ⇒ Object

:nodoc: TODO: this is duplicated from StatusHelper in the Webui. dedup.



144
145
146
147
148
149
150
151
152
 
# File 'lib/chef/knife/core/status_presenter.rb', line 144

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