Module: Caterer::Util::Retryable

Included in:
Communication::SSH
Defined in:
lib/caterer/util/retryable.rb

Instance Method Summary collapse

Instance Method Details

#retryable(opts = nil) ⇒ Object

Retries a given block a specified number of times in the event the specified exception is raised. If the retries run out, the final exception is raised.

This code is adapted slightly from the following blog post: blog.codefront.net/2008/01/14/retrying-code-blocks-in-ruby-on-exceptions-whatever/



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# File 'lib/caterer/util/retryable.rb', line 10

def retryable(opts=nil)
  opts = { :tries => 1, :on => Exception }.merge(opts || {})

  begin
    return yield
  rescue *opts[:on]
    if (opts[:tries] -= 1) > 0
      sleep opts[:sleep].to_f if opts[:sleep]
      retry
    end
    raise
  end
end