Class: Hotdog::Commands::Untag

Inherits:
BaseCommand show all
Defined in:
lib/hotdog/commands/untag.rb

Constant Summary

Constants inherited from BaseCommand

BaseCommand::MASK_DATABASE, BaseCommand::MASK_QUERY, BaseCommand::PERSISTENT_DB

Instance Attribute Summary

Attributes inherited from BaseCommand

#application, #logger, #options

Instance Method Summary collapse

Methods inherited from BaseCommand

#execute, #fixed_string?, #initialize, #parse_options, #reload

Constructor Details

This class inherits a constructor from Hotdog::Commands::BaseCommand

Instance Method Details

#define_options(optparse, options = {}) ⇒ Object 



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# File 'lib/hotdog/commands/untag.rb', line 8

def define_options(optparse, options={})
  default_option(options, :tag_source, "user")
  default_option(options, :tags, [])
  optparse.on("--source SOURCE") do |v|
    options[:tag_source] = v
  end
  optparse.on("--tag TAG") do |v|
    options[:tags] << v
  end
end

#run(args = [], options = {}) ⇒ Object 



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# File 'lib/hotdog/commands/untag.rb', line 19

def run(args=[], options={})
  args.each do |host_name|
    host_name = host_name.sub(/\Ahost:/, "")

    if options[:tags].empty?
      # delete all user tags
      code, detach_tags = dog.detach_tags(host_name, source=options[:tag_source])
      if code.to_i / 100 != 2
        raise("dog.detach_tags(#{host_name.inspect}, source=#{options[:tag_source].inspect}) returns [#{code.inspect}, #{detach_tags.inspect}]")
      end
    else
      code, host_tags = dog.host_tags(host_name, source=options[:tag_source])
      if code.to_i / 100 != 2
        raise("dog.host_tags(#{host_name.inspect}, source=#{options[:tag_source].inspect}) returns [#{code.inspect}, #{host_tags.inspect}]")
      end
      old_tags = host_tags["tags"]
      new_tags = old_tags - options[:tags]
      if old_tags == new_tags
        # nop
      else
        code, update_tags = dog.update_tags(host_name, new_tags, source=options[:tag_source])
        if code.to_i / 100 != 2
          raise("dog.update_tags(#{host_name.inspect}, #{new_tags.inspect}, source=#{options[:tag_source].inspect}) returns [#{code.inspect}, #{update_tags.inspect}]")
        end
      end
    end
  end

  # Remove persistent.db to schedule update on next invocation
  if @db
    close_db(@db)
  end
  FileUtils.rm_f(File.join(options[:confdir], PERSISTENT_DB))
end