Class: Media::Command::Subshell

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Subshell

Returns a new instance of Subshell.



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# File 'lib/media/command/subshell.rb', line 12

def initialize(args)
  @cmd = Array(args.fetch(:cmd))
end

Instance Attribute Details

#error ⇒ Object (readonly)

Returns the value of attribute error.



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# File 'lib/media/command/subshell.rb', line 10

def error
  @error
end

#out ⇒ Object (readonly)

Returns the value of attribute out.



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# File 'lib/media/command/subshell.rb', line 10

def out
  @out
end

#status ⇒ Object (readonly)

Returns the value of attribute status.



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# File 'lib/media/command/subshell.rb', line 10

def status
  @status
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/media/command/subshell.rb', line 16

def call
  @out, @error, @status = Open3.popen3(*@cmd) {|stdin,stdout,stderr,thread|
    
    out = Thread.new do
      stdout.each_with_object([]) do |line, memo|
        memo << line
        yield line.strip if block_given?
      end.join
    end
    
    err = Thread.new do
      stderr.each_with_object([]) do |line, memo|
        memo << line
        yield line.strip if block_given?
      end.join
    end
    
    stdin.close
    
    [out.value, err.value, thread.value]
  }
  self
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/media/command/subshell.rb', line 40

def success?
  exitstatus == 0
end