Class: Crowbar::Client::Util::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/crowbar/client/util/runner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(argv, stdin = STDIN, stdout = STDOUT, stderr = STDERR, kernel = Kernel) ⇒ Runner

Returns a new instance of Runner.



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# File 'lib/crowbar/client/util/runner.rb', line 27

def initialize(
  argv,
  stdin = STDIN,
  stdout = STDOUT,
  stderr = STDERR,
  kernel = Kernel
)
  self.argv = argv
  self.stdin = stdin
  self.stdout = stdout
  self.stderr = stderr
  self.kernel = kernel
end

Instance Attribute Details

#argv ⇒ Object

Returns the value of attribute argv.



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# File 'lib/crowbar/client/util/runner.rb', line 21

def argv
  @argv
end

#kernel ⇒ Object

Returns the value of attribute kernel.



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# File 'lib/crowbar/client/util/runner.rb', line 25

def kernel
  @kernel
end

#stderr ⇒ Object

Returns the value of attribute stderr.



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# File 'lib/crowbar/client/util/runner.rb', line 24

def stderr
  @stderr
end

#stdin ⇒ Object

Returns the value of attribute stdin.



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# File 'lib/crowbar/client/util/runner.rb', line 22

def stdin
  @stdin
end

#stdout ⇒ Object

Returns the value of attribute stdout.



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# File 'lib/crowbar/client/util/runner.rb', line 23

def stdout
  @stdout
end

Instance Method Details

#execute! ⇒ Object 



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# File 'lib/crowbar/client/util/runner.rb', line 41

def execute!
  exit_code = begin
    $stderr = stderr
    $stdin = stdin
    $stdout = stdout

    App::Entry.start(argv)

    0
  rescue StandardError => e
    b = e.backtrace

    stderr.puts(
      "#{b.shift}: #{e.message} (#{e.class})"
    )

    stderr.puts(
      b.map do |s|
        "\tfrom #{s}"
      end.join("\n")
    )

    1
  rescue SystemExit => e
    e.status
  ensure
    $stderr = STDERR
    $stdin = STDIN
    $stdout = STDOUT
  end

  kernel.exit(exit_code)
end