[MacPorts] #18259: Improve mportsearch performance

[MacPorts]

#18259: Improve mportsearch performance
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 Reporter:  blb@…                           |       Owner:  macports-tickets@…                   
     Type:  enhancement                     |      Status:  new                                  
 Priority:  Normal                          |   Milestone:  MacPorts Future                      
Component:  base                            |     Version:  1.8.0                                
 Keywords:  search mportsearch performance  |        Port:                                       
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Comment(by jmr@…):

 Updated again: now being smart about not reading the quick index when it's
 just been generated, added some comments, renamed a couple of variables
 for clarity.

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Ticket URL: <http://trac.macports.org/ticket/18259#comment:6>
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