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bug#29235: 26.0.50; tar.xz broken
From: |
Devon Sean McCullough |
Subject: |
bug#29235: 26.0.50; tar.xz broken |
Date: |
Fri, 10 Nov 2017 09:24:01 -0500 |
> On Nov 10, 2017, at 4:37 AM, Andreas Schwab <schwab@linux-m68k.org> wrote:
>
> On Nov 09 2017, Devon Sean McCullough <Emacs-Hacker2017@jovi.net> wrote:
>
>> Note that MacOSX lacks xz
>
> Not even under a different name?
Turns out xz is redundant because gunzip, gzcat and zcat all work.
Peace
—Devon
P.S. Transcript follows:
$ for C in cat gzcat zcat gunzip; do echo -en "$C\t"; "$C" < bar.tar.xz |
hexdump -C | head -1; done
cat 00000000 fd 37 7a 58 5a 00 00 04 e6 d6 b4 46 02 00 21 01
|.7zXZ......F..!.|
gzcat 00000000 62 61 72 00 00 00 00 00 00 00 00 00 00 00 00 00
|bar.............|
zcat 00000000 62 61 72 00 00 00 00 00 00 00 00 00 00 00 00 00
|bar.............|
gunzip 00000000 62 61 72 00 00 00 00 00 00 00 00 00 00 00 00 00
|bar.............|
P.P.S. Users need to list and retrieve archived files.
MacOSX bsdtar -tv and -xO provide these capabilities.
I’ve never heard of anyone saving archives from Emacs
so dired and find-file satisfy 99% of mundane user needs.
Other requirements are artifacts of a brittle implementation
which, fortunately in this particular case, is sufficient after all.