rsync - Aug 2008 - DO NOT REPLY [Bug 5665] New: need option to hard link from source tree to dest tree

https://bugzilla.samba.org/show_bug.cgi?id=5665

           Summary: need option to hard link from source tree to dest tree
           Product: rsync
           Version: 3.0.4
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P3
         Component: core
        AssignedTo: wayned@samba.org
        ReportedBy: Dave@Yost.com
         QAContact: rsync-qa@samba.org


This is something I do a lot, and I've been using an older tool to do this.
Rsync should do it, too.

mkdir a b
touch a/file1 a/file2
rsync -a --new-option a b

would create
 b/a/file1
 b/a/file2
as shared links to their counterparts in a/


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https://bugzilla.samba.org/show_bug.cgi?id=5665


matt@mattmccutchen.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |enhancement




------- Comment #1 from matt@mattmccutchen.net  2008-08-04 07:36 CST -------
Just pass a --link-dest option for the source dir.


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------- Comment #2 from Dave@Yost.com  2008-08-04 09:29 CST -------
OK, but

1. an option specifically for this is warranted.
2. the new option would operate quite differently from using link_dest, as
below

--clone hard links the destination to the source. If necessary, each existing
destination file is removed first. It is an error to use this option unless src
and dest are on the same volume.


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------- Comment #3 from matt@mattmccutchen.net  2008-08-04 09:38 CST -------
(In reply to comment #2)
> 1. an option specifically for this is warranted.
Why?
> 2. the new option would operate quite differently from using link_dest, as
> below
> 
> --clone hard links the destination to the source. If necessary, each
existing
> destination file is removed first.
The --recheck-basis-dirs option of bug 5644 would make --link-dest work that
way.
> It is an error to use this option unless src
> and dest are on the same volume.
Is it really important for rsync to issue an error in this case?


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wayned@samba.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX




------- Comment #4 from wayned@samba.org  2008-10-02 14:01 CST -------
I personally don't see the need for this as a special option.


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