[MacPorts] #60935: sort-with-subports.tcl should print all ports that need to be built

[MacPorts]

#60935: sort-with-subports.tcl should print all ports that need to be built
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 Reporter:  ryandesign     |      Owner:  admin@…
     Type:  enhancement    |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  buildbot/mpbb  |    Version:
 Keywords:                 |       Port:
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 Currently sort-with-subports.tcl, which is used by mpbb-list-subports,
 traverses the entire dependency tree of the given port and all of its
 subports, and it prints the names of those ports that have not yet been
 built and uploaded, limited to the given port and its subports. That limit
 should be removed: it should print the names of all ports in the
 dependency tree that need to be built.

 The name mpbb-list-subports will then become inaccurate; mpbb-list-ports
 would be better.

 This change will improve the buildbot so that each port that needs to be
 built will happen in its own build—a build that can be referred to by URL
 later, a build that can report its status to the web app.

 Once this is done we can simplify mpbb-gather-archives so that it only
 gathers archives for the given port, since the dependencies' archives will
 already have been gathered by their separate builds.

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Ticket URL: <https://trac.macports.org/ticket/60935>
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