Class: EbsSnapper::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/ebs_snapper/cli.rb

Class Method Summary collapse

Class Method Details

.configure_logger(opts) ⇒ Object 



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# File 'lib/ebs_snapper/cli.rb', line 39

def self.configure_logger(opts)
  if opts[:log_to]
    @logger = ::Logger.new(opts[:log_to])
  end
  @logger ||= ::Logger.new(STDOUT)

  @logger.level = opts[:verbose] ? Logger::DEBUG : Logger::INFO
  
  opts[:aws][:logger] = @logger if opts[:aws]
  
  opts
end

.load_config(opts, filename) ⇒ Object 



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# File 'lib/ebs_snapper/cli.rb', line 33

def self.load_config(opts, filename)
  config = symbolize_keys(YAML.load_file(filename))
  # merge the new file config & update the logger config
  configure_logger(opts.merge!(config))
end

.parse(args) ⇒ Object 



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# File 'lib/ebs_snapper/cli.rb', line 52

def self.parse(args)
  options = {}
  options[:aws] = {}
  options[:dry_run] = false
  options[:ultradns] = {}
  options[:log_to] = nil
  options[:verbose] = false
  options[:out] = ''
  options[:config] = nil
  
  opts = OptionParser.new do |opts|
    opts.banner = "Usage: ebs_snapper [options]"

    opts.separator ""
    opts.separator "Specific options:"

    opts.on("-c", "--config config.yaml",
            "Configuration for the updater") do |config|
      options[:config] = config
    end
          
    opts.separator ""

    opts.on("-v", "--[no-]verbose", "Run verbosely") do |v|
      options[:verbose] = v
    end

    opts.on("-d", "--dry-run", "Dry run, will not create or delete snapshots") do
      options[:dry_run] = true
    end

    opts.on_tail("-h", "--help", "Show this message") do
      puts opts
      exit
    end

    opts.on_tail("--version", "Show version") do
      puts EbsSnapper::VERSION
      exit
    end
  end

  opts.parse!(args)
  # load the config
  load_config(options, options[:config])
end

.run ⇒ Object 



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# File 'lib/ebs_snapper/cli.rb', line 22

def self.run  
  opts = parse(ARGV)
  if opts[:dry_run]
     @logger.info "Dry run mode enabled"
  end
  ebs = EbsSnapper::Ebs.new(opts[:aws], opts[:dry_run])
  ebs.snapshot_and_purge
rescue => e
  @logger.error "Exception: #{e}\n" + e.backtrace().join("\n")
end

.symbolize_keys(hash) ⇒ Object 



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# File 'lib/ebs_snapper/cli.rb', line 99

def self.symbolize_keys(hash)
  unless hash.nil?
    hash.replace(
      hash.each_key.inject({}) do |h, k|
        v = hash.delete(k)
        key = k.to_sym rescue k
        if v.is_a? (Hash)
          h[key] = symbolize_keys(v)
        else
          h[key] = v
        end
        h
      end
    )
  end
  hash
end