[MacPorts] #67336: BSD tar can create corrupted archives on Catalina, Big Sur, Monterey, Ventura

[MacPorts]

#67336: BSD tar can create corrupted archives on Catalina, Big Sur, Monterey,
Ventura
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  Reporter:  catap   |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  base    |    Version:  2.8.1
Resolution:          |   Keywords:  catalina, bigsur, monterey, ventura
      Port:          |
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Comment (by ryandesign):

 The command that MacPorts uses to extract an archive is determined by
 base. It was never intended for ports to override it, and I don't think
 it's possible for them to do so.

 Yes, working around OS bugs sometimes requires hacks.

 I wasn't sure how to test for this myself, but I understand now that I can
 just go to my fork of macports-ports, make a branch, edit the pari
 portfile to include the testing code, commit it, and GitHub Actions
 automatically runs builds for me.

 Armed with this knowledge, I did some tests of my own. I saw the problem
 on macOS 12 and 13 but not on macOS 11.

 I tested whether using GNU tar's `--sparse` flag caused it to experience
 the bug too. In my test runs, it did. That confirms for me that it is an
 OS filesystem bug, not a bug in libarchive.

 I tested whether running `purge` before archiving fixed the problem. In my
 test runs, it did.

 I tested whether using `sleep 10` before archiving fixed the problem. In
 my test runs, it didn't.

-- 
Ticket URL: <https://trac.macports.org/ticket/67336#comment:28>
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