[MacPorts] #51599: main.log is never deleted with "keeplogs yes"

[MacPorts]

#51599: main.log is never deleted with "keeplogs yes"
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  Reporter:  ryandesign  |      Owner:  macports-tickets@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.3.99
Resolution:              |   Keywords:
      Port:              |
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Comment (by ryandesign):

 Replying to [comment:2 jmroot]:
 > Isn't the entire point of that setting to prevent logs from being
 deleted by clean?

 The purpose of the setting, for me, was that the log was not deleted after
 a successful installation. In this way, if someone submitted a log of a
 failed build, I could compare it with my successful log file without
 having to rebuild the port. Now, because of the change in r146737, these
 log files balloon out of control in size the more times the port is
 updated, and whenever I want to compare logs, I first have to manually
 delete all the previous runs from my copy of the log.

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Ticket URL: <https://trac.macports.org/ticket/51599#comment:4>
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