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Date: Sun, 07 Dec 2008 15:39:08 -0800
From: Brian Dessent <brian AT dessent DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: rsync restore the file owner but rsyncd do it not
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Matthias Meyer wrote:

> My first questions:
> What the reason for not copying the attributes "HS"?

rsync is a POSIX program.  It sees everything in terms of POSIX.  That
means it sees a file mode, such as 0644, 0755, etc.  It reads a mode on
the source and sets that same mode on the dest, that is it.  It has no
idea what H/S/R/A attributes mean or that they even exist.

The A attribute gets set on the dest file simply because that is the
default behavior when creating a file.  The R attribute gets set because
Cygwin can map that bit easily onto the POSIX "u=w" mode bit, such that
setting a mode like 0444 will cause R to be set and setting 0644 will
cause R to be reset.  But S and H have no such easy mapping onto POSIX
modes, so they aren't propagated.

> If I try "-X" I get an error "rsync: extended attributes are not supported on this client"

Any EA support in rsync would most likely be some form of POSIX EA
anyway, not R/H/S/A, so I don't think this really matters.

> The same behavior occurs with a file test.txt which is owned by:
> ls -al shows - user mkgroup
> ls -an shows - 1006 513

<http://cygwin.com/faq/faq-nochunks.html#faq.using.chmod>

Brian

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