[ET Trac] [Einstein Toolkit] #1772: Simfactory: potentially serious problem with CACHE directory in the simulations directory

[Einstein Toolkit]

#1772: Simfactory: potentially serious problem with CACHE directory in the
simulations directory
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  Reporter:  bmundim     |       Owner:                     
      Type:  defect      |      Status:  new                
  Priority:  critical    |   Milestone:  ET_2015_05         
 Component:  SimFactory  |     Version:  development version
Resolution:              |    Keywords:  CACHE              
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Comment (by eschnett):

 The logic to copy instead of hard link was added later, as an error
 handling mechanism. The logic without this mechanism should be easier to
 understand. I did not want to rewrite the whole algorithm since it was
 working correctly. It may now be time to introduce a new function
 "create_hardlink_or_copy" that does this, and which also checks for
 erroneous soft links.

 Yes, the logic to compare files apparently only looks at sizes and dates.
 That was presumably a performance optimization that works well in
 practice.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1772#comment:8>
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