[MacPorts] #30168: adduser results in macports users appearing as interactive users

[MacPorts]

#30168: adduser results in macports users appearing as interactive users
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  Reporter:  michal.vanco@…  |      Owner:  macports-tickets@…
      Type:  defect          |     Status:  closed
  Priority:  Normal          |  Milestone:  MacPorts 2.0.1
 Component:  base            |    Version:  1.9.99
Resolution:  fixed           |   Keywords:  adduser lion
      Port:                  |
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Comment (by papp.gergely@…):

 This might be connected - macports user has a folder created under
 /private/var/folders.
 Most notably, it has a ~1GB com.apple.Iconservices folder. I believe this
 is unnecessary.
 Same for macports-created users with UUID > 500 (e.g. polkituser)
 There must be a setting which disables the generation of the iconcache,
 this should be the default for the macports user (and related users).
 Unfortunately I haven't been able to find the said setting myself.

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Ticket URL: <https://trac.macports.org/ticket/30168#comment:31>
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