[MacPorts] #56101: mpbb-list-subports returns lowercased port names, but mpbb-gather-archives requires correctly-cased port names

[MacPorts]

#56101: mpbb-list-subports returns lowercased port names, but mpbb-gather-archives
requires correctly-cased port names
---------------------------+---------------------
 Reporter:  ryandesign     |      Owner:  admin@…
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  buildbot/mpbb  |    Version:
 Keywords:                 |       Port:
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 mpbb-list-subports
 [https://github.com/macports/mpbb/commit/2e1395ef0a3c5fed103c6ba8d0f717c572388746
 was recently changed] to return lowercased port names, instead of
 correctly-cased port names. This was done intentionally, to deduplicate
 the list, in case a port name was specified with the wrong case somewhere,
 such as in a dependency. But it was two negative consequences:

 1. The port names are displayed in various places on the buildbot web
 interface, and are now displayed with all-lowercased names instead of the
 correct case.
 2. mpbb-gather-archives no longer gathers archives of ports whose names
 contain uppercase characters, because the list of archives to gather is
 constructed by running `port -q location installed and \( $(cat
 "${option_work_dir}/all_ports") \))`, and all_ports contains the
 lowercased names of all ports, and Boolean logic like this is currently
 handled case-sensitively by MacPorts base; see #56100.

 Even if the case-sensitive handling of Boolean logic is fixed in MacPorts
 base, I would prefer for mpbb-list-subports to return port names in the
 canonical case, not lowercased, for aesthetic reasons.

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Ticket URL: <https://trac.macports.org/ticket/56101>
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