[MacPorts] #15186: port upgrade does not work correctly on current pseudo-port

[MacPorts]

#15186: port upgrade does not work correctly on current pseudo-port
---------------------+----------------------------
  Reporter:  raimue  |      Owner:  raimue
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:  MacPorts 2.5.0
 Component:  base    |    Version:  1.6.0
Resolution:          |   Keywords:
      Port:          |
---------------------+----------------------------

Comment (by raimue):

 If we want this to work, we are missing an API just like
 `macports::upgrade`, but instead of looking up a port by name with
 `mportlookup`, it would take a port name of the installed port and a
 porturl for the replacement. However, that seems a bit complex just for
 this case.

 You can use `sudo port install` with the current pseudo-port to replace an
 installed port. The only difference is that `port install` is allowed to
 downgrade to an earlier version. Therefore another alternative could be to
 divert `port upgrade current` automatically to the install target, maybe
 with an informational message as the behavior changes slightly.

 However, I thought that completely removing this functionality from `port
 upgrade` would be a good idea. After a while we could even make `port
 upgrade` default to `port upgrade outdated` to make using MacPorts easier.

-- 
Ticket URL: <https://trac.macports.org/ticket/15186#comment:8>
MacPorts <https://www.macports.org/>
Ports system for macOS