[MacPorts] #52000: Add xz to "base" to allow changing the default compression format to .tar.xz in the future

[MacPorts]

#52000: Add xz to "base" to allow changing the default compression format to
.tar.xz in the future
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  Reporter:  mojca        |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  base         |    Version:  2.3.4
Resolution:               |   Keywords:
      Port:               |
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Comment (by RJVB):

 > xz and xzdec together need less than 300k in total (and perhaps a tiny
 bit more if built universally).

 That can be even less if you figure out how best to leverage
 hfsCompression (or the new FS's transparent compression if indeed it turns
 out to exist). Also, I don't think there's a need for xzdec; "base" uses
 the -d option to uncompress using the *z family of compressors.

 For the rest: I've been using .txz software archives for close to 2 years
 now, ever since I discovered the support for it in macports.conf . The
 only issue used to be updating one of port:xz's dependencies or the port
 itself, but that's over now that I build a static, persistent copy.

 As to the conversion: locally it seems to work just fine to do an
 archivefetch, convert the .tbz2 in `incoming/verified` into a .txz, and
 then do the install.

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Ticket URL: <https://trac.macports.org/ticket/52000#comment:7>
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