Class: DatadogBackup::Cli

Inherits:
Object
  • Object
show all
Includes:
Options
Defined in:
lib/datadog_backup/cli.rb

Instance Method Summary collapse

Methods included from Options

#action, #backup_dir, #client, #concurrency_limit, #datadog_api_key, #datadog_app_key, #diff_format, #force_restore, #logger, #output_format, #resources

Constructor Details

#initialize(options) ⇒ Cli

Returns a new instance of Cli.



88
89
90
91
 
# File 'lib/datadog_backup/cli.rb', line 88

def initialize(options)
  @options = options
  initialize_client
end

Instance Method Details

#all_diff_futures ⇒ Object 



11
12
13
14
15
16
17
18
19
20
 
# File 'lib/datadog_backup/cli.rb', line 11

def all_diff_futures
  logger.info("Starting diffs on #{::DatadogBackup::ThreadPool::TPOOL.max_length} threads")
  any_resource_instance
    .all_file_ids_for_selected_resources
    .map do |id|
    Concurrent::Promises.future_on(::DatadogBackup::ThreadPool::TPOOL, id) do |id|
      [id, getdiff(id)]
    end
  end
end

#any_resource_instance ⇒ Object 



22
23
24
 
# File 'lib/datadog_backup/cli.rb', line 22

def any_resource_instance
  resource_instances.first
end

#backup ⇒ Object 



26
27
28
29
30
 
# File 'lib/datadog_backup/cli.rb', line 26

def backup
  resource_instances.each(&:purge)
  resource_instances.each(&:backup)
  any_resource_instance.all_files
end

#definitive_resource_instance(id) ⇒ Object 



39
40
41
 
# File 'lib/datadog_backup/cli.rb', line 39

def definitive_resource_instance(id)
  matching_resource_instance(any_resource_instance.class_from_id(id))
end

#diffs ⇒ Object 



43
44
45
46
47
48
49
50
51
52
53
 
# File 'lib/datadog_backup/cli.rb', line 43

def diffs
  futures = all_diff_futures
  ::DatadogBackup::ThreadPool.watcher(logger).join

  format_diff_output(
    Concurrent::Promises
      .zip(*futures)
      .value!
      .compact
  )
end

#format_diff_output(diff_output) ⇒ Object 



69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
 
# File 'lib/datadog_backup/cli.rb', line 69

def format_diff_output(diff_output)
  case diff_format
  when nil, :color
    diff_output.map do |id, diff|
      " ---\n id: #{id}\n#{diff}"
    end.join("\n")
  when :html
    '<html><head><style>' +
      Diffy::CSS +
      '</style></head><body>' +
      diff_output.map do |id, diff|
        "<br><br> ---<br><strong> id: #{id}</strong><br>" + diff
      end.join('<br>') +
      '</body></html>'
  else
    raise 'Unexpected diff_format.'
  end
end

#getdiff(id) ⇒ Object 



55
56
57
58
59
60
61
62
63
64
65
66
67
 
# File 'lib/datadog_backup/cli.rb', line 55

def getdiff(id)
  result = definitive_resource_instance(id).diff(id)
  case result
  when ''
    nil
  when "\n"
    nil
  when '<div class="diff"></div>'
    nil
  else
    result
  end
end

#initialize_client ⇒ Object 



32
33
34
35
36
37
 
# File 'lib/datadog_backup/cli.rb', line 32

def initialize_client
  @options[:client] ||= Dogapi::Client.new(
    datadog_api_key,
    datadog_app_key
  )
end

#matching_resource_instance(klass) ⇒ Object 



93
94
95
 
# File 'lib/datadog_backup/cli.rb', line 93

def matching_resource_instance(klass)
  resource_instances.select { |resource_instance| resource_instance.instance_of?(klass) }.first
end

#resource_instances ⇒ Object 



97
98
99
100
101
 
# File 'lib/datadog_backup/cli.rb', line 97

def resource_instances
  @resource_instances ||= resources.map do |resource|
    resource.new(@options)
  end
end

#restore ⇒ Object 



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/datadog_backup/cli.rb', line 103

def restore
  futures = all_diff_futures
  watcher = ::DatadogBackup::ThreadPool.watcher(logger)

  futures.each do |future|
    id, diff = *future.value!
    next unless diff

    if @options[:force_restore]
      definitive_resource_instance(id).restore(id)
    else
      puts '--------------------------------------------------------------------------------'
      puts format_diff_output([id, diff])
      puts '(r)estore to Datadog, overwrite local changes and (d)ownload, (s)kip, or (q)uit?'
      response = $stdin.gets.chomp
      case response
      when 'q'
        exit
      when 'r'
        puts "Restoring #{id} to Datadog."
        definitive_resource_instance(id).restore(id)
      when 'd'
        puts "Downloading #{id} from Datadog."
        definitive_resource_instance(id).get_and_write_file(id)
      when 's'
        next
      else
        puts 'Invalid response, please try again.'
        response = $stdin.gets.chomp
      end
    end
  end
  watcher.join if watcher.status
end

#run! ⇒ Object 



138
139
140
141
142
 
# File 'lib/datadog_backup/cli.rb', line 138

def run!
  puts(send(action.to_sym))
rescue SystemExit, Interrupt
  ::DatadogBackup::ThreadPool.shutdown(logger)
end