Class: FluQ::CLI

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

Constant Summary collapse

SIGNALS = 
[ :QUIT, :INT, :TERM, :HUP ]

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CLI

Constructor



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# File 'lib/fluq/cli.rb', line 21

def initialize
  super

  # Parse options
  @options = {}
  parser.parse!(ARGV)
end

Instance Attribute Details

#options ⇒ Object (readonly)

attr_reader [Hash] options



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# File 'lib/fluq/cli.rb', line 10

def options
  @options
end

Class Method Details

.run ⇒ Object

Runs the CLI



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# File 'lib/fluq/cli.rb', line 13

def self.run
  if BasicSocket.respond_to?(:do_not_reverse_lookup=)
    BasicSocket.do_not_reverse_lookup = true
  end
  new.run
end

Instance Method Details

#configured? ⇒ Boolean

Returns true if configured.

Returns:

  • (Boolean) —

    true if configured



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# File 'lib/fluq/cli.rb', line 69

def configured?
  options[:config] && File.file?(options[:config])
end

#run ⇒ Object 



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# File 'lib/fluq/cli.rb', line 29

def run
  # Exit if not configured correctly
  unless configured?
    puts parser
    exit
  end

  # Boot and add project's lib/ dir to load path
  require 'fluq'
  $LOAD_PATH.unshift FluQ.root.join('lib')
  procline "(starting)"

  # Setup logger
  if options[:log]
    FileUtils.mkdir_p(File.dirname(options[:log]))
    FluQ.logger = ::Logger.new(options[:log])
  end
  if options[:verbose]
    FluQ.logger.level = ::Logger::DEBUG
  end

  # Write PID file
  @pidfile = options[:pidfile] || FluQ.root.join("tmp", "pids", "fluq.pid")
  FileUtils.mkdir_p(File.dirname(@pidfile))
  File.open(@pidfile, "w") {|f| f.write Process.pid }

  # Trap signals
  SIGNALS.each do |signal|
    trap(signal) {|*| shutdown! }
  end

  # Start
  log "Starting FluQ #{FluQ::VERSION} (#{options[:config]})"
  FluQ::Runner.run do |runner|
    FluQ::DSL::Root.new(options[:config]).apply(runner)
    procline
  end
end