Class: Procodile::CLI

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

Instance Method Summary collapse

Constructor Details

#initialize(config, cli_options = {}) ⇒ CLI

Returns a new instance of CLI.



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

def initialize(config, cli_options = {})
  @config = config
  @cli_options = cli_options
end

Instance Method Details

#kill ⇒ Object 



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# File 'lib/procodile/cli.rb', line 148

def kill
  Dir[File.join(@config.pid_root, '*.pid')].each do |pid_path|
    name = pid_path.split('/').last.gsub(/\.pid\z/, '')
    pid = File.read(pid_path).to_i
    begin
      ::Process.kill('KILL', pid)
      puts "Sent KILL to #{pid} (#{name})"
    rescue Errno::ESRCH
    end
    FileUtils.rm(pid_path)
  end
end

#reload_config ⇒ Object 



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# File 'lib/procodile/cli.rb', line 106

def reload_config
  if running?
    ControlClient.run(@config.sock_path, 'reload_config')
    puts "Reloading config for #{@config.app_name}"
  else
    raise Error, "#{@config.app_name} supervisor isn't running"
  end
end

#restart ⇒ Object 



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# File 'lib/procodile/cli.rb', line 81

def restart
  if running?
    options = {}
    instances = ControlClient.run(@config.sock_path, 'restart', :processes => process_names_from_cli_option)
    if instances.empty?
      puts "There are no processes to restart."
    else
      instances.each do |instance|
        puts "Restarting #{instance['description']} (PID: #{instance['pid']})"
      end
    end
  else
    raise Error, "#{@config.app_name} supervisor isn't running"
  end
end

#run(command) ⇒ Object 



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# File 'lib/procodile/cli.rb', line 15

def run(command)
  if self.class.instance_methods(false).include?(command.to_sym) && command != 'run'
    public_send(command)
  else
    raise Error, "Invalid command '#{command}'"
  end
end

#start ⇒ Object 



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# File 'lib/procodile/cli.rb', line 23

def start
  if running?
    instances = ControlClient.run(@config.sock_path, 'start_processes', :processes => process_names_from_cli_option)
    if instances.empty?
      raise Error, "No processes were started. The type you entered might already be running or isn't defined."
    else
      instances.each do |instance|
        puts "Started #{instance['description']} (PID: #{instance['pid']})"
      end
      return
    end
  end

  run_options = {}
  run_options[:brittle] = @cli_options[:brittle]

  processes = process_names_from_cli_option

  if @cli_options[:clean]
    FileUtils.rm_f(File.join(@config.pid_root, '*.pid'))
    FileUtils.rm_f(File.join(@config.pid_root, '*.sock'))
    puts "Removed all old pid & sock files"
  end

  if @cli_options[:foreground]
    File.open(pid_path, 'w') { |f| f.write(::Process.pid) }
    Supervisor.new(@config, run_options).start(:processes => processes)
  else
    FileUtils.rm_f(File.join(@config.pid_root, "*.pid"))
    pid = fork do
      STDOUT.reopen(@config.log_path, 'a')
      STDOUT.sync = true
      STDERR.reopen(@config.log_path, 'a')
      STDERR.sync = true
      Supervisor.new(@config, run_options).start(:processes => processes)
    end
    ::Process.detach(pid)
    File.open(pid_path, 'w') { |f| f.write(pid) }
    puts "Started #{@config.app_name} supervisor with PID #{pid}"
  end
end

#status ⇒ Object 



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# File 'lib/procodile/cli.rb', line 115

def status
  if running?
    stats = ControlClient.run(@config.sock_path, 'status')
    stats['processes'].each_with_index do |process, index|
      puts unless index == 0
      puts "|| ".color(process['log_color']) + process['name'].color(process['log_color'])
      puts "||".color(process['log_color']) + " Quantity       " + process['quantity'].to_s
      puts "||".color(process['log_color']) + " Command        " + process['command']
      puts "||".color(process['log_color']) + " Respawning     " + "#{process['max_respawns']} every #{process['respawn_window']} seconds"
      puts "||".color(process['log_color']) + " Restart mode   " + process['restart_mode']
      puts "||".color(process['log_color']) + " Log path       " + (process['log_path'] || "none specified")
      instances = stats['instances'][process['name']]
      if instances.empty?
        puts "||".color(process['log_color']) + " No processes running."
      else
        instances.each do |instance|
          print "|| ".color(process['log_color']) + instance['description'].to_s.ljust(20, ' ').color(process['log_color'])
          if instance['running']
            print ' Running '.color("42;37")
          else
            print ' Stopped '.color("41;37")
          end
          print "     pid " + instance['pid'].to_s.ljust(12, ' ')
          print instance['respawns'].to_s + " respawns"
          puts
        end
      end
    end
  else
    puts "#{@config.app_name} supervisor not running"
  end
end

#stop ⇒ Object 



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# File 'lib/procodile/cli.rb', line 65

def stop
  if running?
    options = {}
    instances = ControlClient.run(@config.sock_path, 'stop', :processes => process_names_from_cli_option)
    if instances.empty?
      puts "There are no processes to stop."
    else
      instances.each do |instance|
        puts "Stopping #{instance['description']} (PID: #{instance['pid']})"
      end
    end
  else
    raise Error, "#{@config.app_name} supervisor isn't running"
  end
end

#stop_supervisor ⇒ Object 



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# File 'lib/procodile/cli.rb', line 97

def stop_supervisor
  if running?
    ::Process.kill('TERM', current_pid)
    puts "Supervisor will be stopped in a moment."
  else
    raise Error, "#{@config.app_name} supervisor isn't running"
  end
end