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Date: Sat, 23 Jan 2016 22:56:35 +0100
From: Houder <houder AT xs4all DOT nl>
To: cygwin AT cygwin DOT com
Subject: Re: snapshots (archive files) are too big ... Why?
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On 2016-01-23 21:18, Achim Gratz wrote:
> Houder writes:
>> Did the same test on FC19. Same result.
> 
> The patch most likely responsible is only applied to FC21/22/23 best I
> can tell.

As I realized, that Corinna is using "the latest and the greatest" of 
the
Fedora distribution, I go myself

      tar-1.27.1-8.fc21.i686.rpm

and extracted the tar program from it.

Again using FC19, but now the tar program that I extracted:

@@ pwd
/home/henri/x
@@ ls -l
total 7172
-rwxr-xr-x 1 henri henri 6952352 Jan 23 20:28 
cygwin-inst-20160121.tar.xz
drwxr-xr-x 3 henri henri    4096 Jan 21 18:42 etc
-rwxr-xr-x 1 henri henri  377916 Jan 23 22:38 tar
drwxr-xr-x 7 henri henri    4096 Jan 21 18:42 usr
@@ ./tar --version
tar (GNU tar) 1.27.1
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Written by John Gilmore and Jay Fenlason.
@@ find etc usr | ./tar -T - --no-recursion -cJf foo.tar.xz
@@ find etc usr | ./tar --no-recursion -T - -cJf foo2.tar.xz
@@ ./tar tvJf foo.tar.xz > foo1
@@ ./tar tvJf foo2.tar.xz > foo2
@@ wc -l foo1 foo2
   1429 foo1 <==== Oh, ah!
    381 foo2
   1810 total
@@

As noted by Achim, this modification of tar took place in July 2015.

That tells it all, does it not, Corinna?

Thanks, Achim.

Regards,
Henri

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