Wednesday, October 31, 2012

Making on the fly changes to running ruby jobs

Let's say you've got a long running ruby script: and you need to be able to make config changes. But you don't want to stop the program because then you'd have to start all over. Add this to the top of the script
require 'pry'

And now you can interrupt it with a crl-c. After making changes to the environment exit will let the script resume. Use exit-program if you really want the script to exit.

For example I might use this to change the proxy my agent is connecting through on a long scrape job when things gets a little slow.

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