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August 29, 2015 13:57
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| module ExponentialBackoff | |
| def self.retry_with_exponential_backoff *args | |
| opts = { max: 3 } | |
| opts.merge!(args.pop) if args.last.is_a?(Hash) | |
| attempt = 0 | |
| begin | |
| yield | |
| rescue *args | |
| if attempt < opts[:max] | |
| attempt += 1 | |
| puts "retrying in #{attempt**2}" | |
| sleep attempt**2 | |
| retry | |
| else | |
| raise | |
| end | |
| end | |
| end | |
| end | |
| if __FILE__ == $0 | |
| ExponentialBackoff.retry_with_exponential_backoff(NoMethodError, max: 2) do | |
| puts nil.foo | |
| end | |
| end |
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