Class: Gitlab::QA::Docker::Shellout

Inherits:
Object
  • Object
show all
Defined in:
lib/gitlab/qa/docker/shellout.rb

Constant Summary collapse

StatusError = 
Class.new(StandardError)

Instance Method Summary collapse

Constructor Details

#initialize(command) ⇒ Shellout

Returns a new instance of Shellout.



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# File 'lib/gitlab/qa/docker/shellout.rb', line 9

def initialize(command)
  @command = command
  @output = []

  puts "Docker shell command: `#{@command}`"
end

Instance Method Details

#execute! ⇒ Object

Raises:



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# File 'lib/gitlab/qa/docker/shellout.rb', line 16

def execute!
  raise StatusError, 'Command already executed' if @output.any?

  Open3.popen2e(@command.to_s) do |_in, out, wait|
    out.each do |line|
      @output.push(line)

      if block_given?
        yield line, wait
      else
        puts line
      end
    end

    if wait.value.exited? && wait.value.exitstatus.nonzero?
      raise StatusError, "Docker command `#{@command}` failed!"
    end
  end

  @output.join.chomp
end