Class: Freyr::Command

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/freyr/command.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(service, command = nil, args = {}) ⇒ Command

Returns a new instance of Command.



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# File 'lib/freyr/command.rb', line 8

def initialize(service, command=nil, args = {})
  @service = service
end

Instance Attribute Details

#service ⇒ Object (readonly)

Returns the value of attribute service.



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# File 'lib/freyr/command.rb', line 6

def service
  @service
end

Class Method Details

.add_service_method(*methods) ⇒ Object 



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# File 'lib/freyr/command.rb', line 161

def add_service_method *methods
end

Instance Method Details

#command ⇒ Object 



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# File 'lib/freyr/command.rb', line 15

def command
  info.start
end

#kill!(sig = nil) ⇒ Object 



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# File 'lib/freyr/command.rb', line 53

def kill!(sig=nil)
  require_admin
  sig ||= info.stop_sig || 'KILL'
  
  Freyr.logger.debug("sending signal to process") {"Signal: #{sig}, PID: #{pid}"}
  
  if pid(true)
    Process.kill(sig, pid)
  end
end

#pid(force = false) ⇒ Object 



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# File 'lib/freyr/command.rb', line 64

def pid force = false
  @service.pid_file.pid(force)
end

#restart! ⇒ Object 



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# File 'lib/freyr/command.rb', line 68

def restart!
  require_admin
  
  if info.restart
    chdir
    system(info.restart)
  elsif info.restart_sig
    kill!(info.restart_sig)
  else
    run!
  end
end

#run! ⇒ Object 



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# File 'lib/freyr/command.rb', line 19

def run!
  raise "no start command found for service #{name}" unless command
  kill! if service.alive?
  
  require_admin
  
  total_time = Time.now
  
  Freyr.logger.debug("attempting to run command") {command.inspect}

  pid = spawn(command)
  
  str = "Starting #{info.name} with #{command.inspect}"
  OUT.puts '',str, '='*str.length
  Process.detach(pid)
  
  pid = service.pid_file.wait_for_pid
  
  OUT.puts "PID of new #{info.name} process is #{pid}"
  
  if info.ping
    pinger = Pinger.new(@service)
    
    pinger.wait_for_resp { @service.alive? }
  end
  
  if @service.alive?
    OUT.puts "Launch took about #{(Time.now-total_time).ceil} seconds"
    pid
  else
    OUT.puts "#{info.name} service wasn't launched correctly. For details see: #{info.log}"
  end
end