[MacPorts] #58696: Don't force the buildbot to build from source

[MacPorts]

#58696: Don't force the buildbot to build from source
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  Reporter:  ryandesign     |      Owner:  admin@…
      Type:  defect         |     Status:  new
  Priority:  High           |  Milestone:
 Component:  buildbot/mpbb  |    Version:
Resolution:                 |   Keywords:
      Port:                 |
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Comment (by jmroot):

 The comment about variants not being taken into account only applies to
 the planned support for building non-default variants. The only reason a
 port could not be excluded when the archive was already uploaded is if the
 distributability status changed or curl failed to check whether it
 existed. Logging should indeed be added for both of those cases.

 As for the main request of this ticket, CI always needs to build from
 source, so the change can't simply be reverted. There needs to be an
 option as suggested in the PR.

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Ticket URL: <https://trac.macports.org/ticket/58696#comment:5>
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