[MacPorts] #15395: Use primary port category for fetched distfile layout

[MacPorts]

#15395: Use primary port category for fetched distfile layout
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  Reporter:  wsiegrist at apple.com  |       Owner:  wsiegrist at apple.com       
      Type:  enhancement          |      Status:  new                       
  Priority:  Normal               |   Milestone:  MacPorts base enhancements
 Component:  base                 |     Version:                            
Resolution:                       |    Keywords:  fetch mirror distfiles    
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Comment (by raimue at macports.org):

 First of all, there are other places where this variable is used in
 `portclean.tcl` which would also need the new location for proper
 cleaning.

 We could change the default of dist_subdir to fix it in all locations
 without much rewriting. I didn't test it, but I mean something like this:
 {{{
 default dist_subdir {[lindex categories 0]/${portname}}
 }}}

 This would still allow to override the default dist_subdir with the fetch
 directory of another port by using `dist_subdir category/portname`. The
 downside is that we would need to change it in all existing Portfiles
 using dist_subdir (I counted 190 ports).

-- 
Ticket URL: <http://trac.macports.org/ticket/15395#comment:2>
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