[MacPorts] #40686: bash-completion: support port abbreviated commands

[MacPorts]

#40686: bash-completion: support port abbreviated commands
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  Reporter:  ryandesign@…     |      Owner:  raimue@…
      Type:  enhancement      |     Status:  assigned
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:
Resolution:                   |   Keywords:
      Port:  bash-completion  |
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Changes (by raimue@…):

 * status:  new => assigned


Comment:

 This first needs to be supported in `port usage cont` expanding the
 abbreviation to the full command. Although implementing the check for a
 unique prefix in the bash completion itself could work, I feel it would
 just duplicate the functionality that is already in port(1). I agree this
 should work, anyway.

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Ticket URL: <https://trac.macports.org/ticket/40686#comment:1>
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