[MacPorts] #17762: 1.7 - install/upgrade broken with direct/archivemode

[MacPorts]

#17762: 1.7 - install/upgrade broken with direct/archivemode
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 Reporter:  dluke@…             |       Owner:  macports-tickets@…                   
     Type:  defect              |      Status:  new                                  
 Priority:  Normal              |   Milestone:  MacPorts 1.7.1                       
Component:  base                |     Version:  1.7.0                                
 Keywords:                      |        Port:                                       
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 install and upgrade insist on unarchiving already installed dependencies
 when running upgrade (even with -n) or install.

 Things still work (just very inefficiently) as long as the portfile hasn't
 been modified since the archive was created (as MacPorts will just
 unarchive and then notice that the port was already installed and
 continue), However, if there modification time for the Portfile is later
 than the archive, Macports will generate an error and stop the install or
 upgrade.

 I first noticed this with only upgrade and didn't find the problem in the
 upgrade code, but then noticed it also happens with install.

 If I have time, I'll track this down, but if someone has an idea of what
 might have changed to cause this, that would be helpful.

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Ticket URL: <http://trac.macports.org/ticket/17762>
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