Class: DeviceCommand

Inherits:
Command show all
Defined in:
lib/replicant/commands/device_command.rb

Constant Summary collapse

@@threads = 
[]

Constants included from Styles

Styles::CONSOLE_WIDTH, Styles::REPL_OUT, Styles::STYLES

Instance Attribute Summary

Attributes inherited from Command

#args

Instance Method Summary collapse

Methods inherited from Command

all, #execute, inherited, load, #name

Methods included from Styles

#create_style, #end_style, #styled_text

Constructor Details

#initialize(repl, args = nil, options = {}) ⇒ DeviceCommand

Returns a new instance of DeviceCommand.



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# File 'lib/replicant/commands/device_command.rb', line 5

def initialize(repl, args = nil, options = {})
  super
  @process_muncher = ProcessMuncher.new(repl)
  @log_muncher = LogMuncher.new(repl)
end

Instance Method Details

#description ⇒ Object 



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# File 'lib/replicant/commands/device_command.rb', line 11

def description
  "set a default device to work with"
end

#run ⇒ Object 



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# File 'lib/replicant/commands/device_command.rb', line 23

def run
  default_device = if index? && (1..devices.size).include?(args.to_i)
    # user selected by index
    devices[args.to_i - 1]
  else
    # user selected by device ID
    devices.detect { |d| d.id == args }
  end

  if default_device
    @repl.default_device = default_device
    output "Default device set to #{default_device.name}"

    # kill any existing threads
    putsd "Found #{@@threads.size} zombie threads, killing..." unless @@threads.empty?
    @@threads.select! { |t| t.exit }
    
    @@threads << @log_muncher.munch_logs do |logfile|
      observe_pid_changes(logfile)
    end

    output "Logs are available at #{LogMuncher::LOGFILE}"
  else
    output "No such device"
  end

  default_device
end

#usage ⇒ Object 



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# File 'lib/replicant/commands/device_command.rb', line 15

def usage
  "#{name} [<index>|<device_id>]"
end

#valid_args? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/replicant/commands/device_command.rb', line 19

def valid_args?
  args.present? && /\S+/ =~ args
end