[MacPorts] #30670: make signed sync/selfupdate faster

[MacPorts]

#30670: make signed sync/selfupdate faster
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  Reporter:  sdavids@…    |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.0.1
Resolution:               |   Keywords:
      Port:               |
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Comment (by mojca.miklavec.lists@…):

 I don't know how exactly the system works, but why not using something
 like
 {{{
 rsync -av --delete rsync://rsync.macports.org/release/ports/
 /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/
 }}}
 as opposed to fetching the whole tar file? On my computer it takes 17s.
 The selfupdate take 44s, but it probably also does a bit more. (OK, there
 could be a problem in case that the second folder is not set up properly
 since the complete content might be deleted. I'm not sure how macports
 currently deals with deleting files if user does something stupid.)

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Ticket URL: <https://trac.macports.org/ticket/30670#comment:5>
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