Add setting for alternative rack tempfile directory #5958
Merged
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Related issue: #5948
The variable that needs to be set to override the default factory is part of the Rack
request.env
hash. Creating a custom middleware to handle injecting the lambda seemed to be the best approach.Having the error handling in the initialize method will log any issues once during app startup. The factory logic can be called multiple times during a single upload, so this seemed like the simplest way to get the error logged without triggering, potentially multiple times, on every upload in the application. It does run the risk of not being noticed that way though so I'm not sure which approach is actually better.