[MacPorts] #38381: RFE: pseudo-portnames `depof:` and `rdepof:` should be more granular

[MacPorts]

#38381: RFE: pseudo-portnames `depof:` and `rdepof:` should be more granular
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 Reporter:  egall@…      |      Owner:  macports-tickets@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  base         |    Version:  2.1.3
 Keywords:               |       Port:
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 What I mean is I want to be able to do something like `port echo
 lib_depof:foo` or `port echo lib_rdepof:foo` to get just the (recursive)
 library dependencies of port foo. This would be useful for my
 [https://github.com/cooljeanius/macportsscripts/blob/master/port-
 depcheck.sh port-depcheck.sh] script so I can have it not list build
 dependencies as unnecessary dependencies.

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Ticket URL: <https://trac.macports.org/ticket/38381>
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