DO NOT REPLY [Bug 3693] rsync can use same --link-dest file several times, leading to incorrect hard links

[samba-bugs at samba.org]

https://bugzilla.samba.org/show_bug.cgi?id=3693





------- Comment #2 from hashproduct at verizon.net  2006-04-17 15:23 MST -------
(In reply to comment #1)
> the contents are the same but some of the meta information is not.

Oops: the mtimes were different.  Now I'm not sure how I tickled the bug the
first time.  Corrected script:

mkdir src dest linkdest
touch src/f1
rsync -a src/f1 src/f2
rsync -a src/f1 linkdest/f1
ln linkdest/f1 linkdest/f2
rsync -Ha src/ dest/ --link-dest=../linkdest/

> > Rsync links linkdest/f1 instead of copying src/f1 and links linkdest/f2
> > instead of copying src/f2.  Now dest/f1 and dest/f2 refer to the same
> > file while src/f1 and src/f2 refer to different files.
> 
> can you post the output inline with commands as i'm not seeing this here...

Please try again with the corrected script.  On my computer, "find . -ls" after
the corrected script has finished produces the following output (some spaces
removed to make it narrower):

  1908  0 drwx------  5 matt  matt  120 Apr 17 16:11 .
482092  0 drwx------  2 matt  matt   96 Apr 17 16:11 ./src
482105  0 -rw-------  1 matt  matt    0 Apr 17 16:11 ./src/f1
482106  0 -rw-------  1 matt  matt    0 Apr 17 16:11 ./src/f2
482098  0 drwx------  2 matt  matt   96 Apr 17 16:11 ./dest
482107  0 -rw-------  4 matt  matt    0 Apr 17 16:11 ./dest/f1
482107  0 -rw-------  4 matt  matt    0 Apr 17 16:11 ./dest/f2
482101  0 drwx------  2 matt  matt   96 Apr 17 16:11 ./linkdest
482107  0 -rw-------  4 matt  matt    0 Apr 17 16:11 ./linkdest/f1
482107  0 -rw-------  4 matt  matt    0 Apr 17 16:11 ./linkdest/f2

> # i modified the erroneous[?] link-dest usage of both a relative and a
> #  nonexistant path. in the past i had problems with relative. should
> #  rsync complain about nonexistance with -v?

No, my --link-dest usage is correct.  The description of --link-dest=DIR says,
"If DIR is a relative path, it is relative to the destination directory."

Please try my corrected script and see if the rest of your remarks still apply.


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