Class: ChupaText::ExternalCommand

Inherits:
Object
  • Object
show all
Includes:
Loggable
Defined in:
lib/chupa-text/external-command.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ ExternalCommand

Returns a new instance of ExternalCommand.


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# File 'lib/chupa-text/external-command.rb', line 62

def initialize(path)
  @path = Pathname.new(path)
end

Instance Attribute Details

#pathObject (readonly)

Returns the value of attribute path


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# File 'lib/chupa-text/external-command.rb', line 61

def path
  @path
end

Class Method Details

.default_limit_asObject


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# File 'lib/chupa-text/external-command.rb', line 45

def default_limit_as
  @default_limit_as || limit_env("AS")
end

.default_limit_as=(as) ⇒ Object


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# File 'lib/chupa-text/external-command.rb', line 49

def default_limit_as=(as)
  @default_limit_as = as
end

.default_limit_cpuObject


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# File 'lib/chupa-text/external-command.rb', line 37

def default_limit_cpu
  @default_limit_cpu || limit_env("CPU")
end

.default_limit_cpu=(cpu) ⇒ Object


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# File 'lib/chupa-text/external-command.rb', line 41

def default_limit_cpu=(cpu)
  @default_limit_cpu = cpu
end

.default_timeoutObject


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# File 'lib/chupa-text/external-command.rb', line 29

def default_timeout
  @default_timeout || ENV["CHUPA_TEXT_EXTERNAL_COMMAND_TIMEOUT"]
end

.default_timeout=(timeout) ⇒ Object


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# File 'lib/chupa-text/external-command.rb', line 33

def default_timeout=(timeout)
  @default_timeout = timeout
end

Instance Method Details

#exist?Boolean

Returns:

  • (Boolean)

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# File 'lib/chupa-text/external-command.rb', line 97

def exist?
  if @path.absolute?
    @path.file? and @path.executable?
  else
    (ENV['PATH'] || "").split(File::PATH_SEPARATOR).any? do |path|
      (Pathname.new(path) + @path).expand_path.exist?
    end
  end
end

#run(*arguments) ⇒ Object


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# File 'lib/chupa-text/external-command.rb', line 66

def run(*arguments)
  if arguments.last.is_a?(Hash)
    options = arguments.pop
  else
    options = {}
  end
  data = options[:data]
  pid = spawn(options[:env] || {},
              @path.to_s,
              *arguments,
              spawn_options(options[:spawn_options], data))
  if data
    soft_timeout = data.timeout
  else
    soft_timeout = nil
  end
  status = nil
  begin
    status = wait_process(pid, options[:timeout], soft_timeout)
  ensure
    unless status
      begin
        Process.kill(:KILL, pid)
        Process.waitpid(pid)
      rescue SystemCallError
      end
    end
  end
  status.success?
end