Date: Thu, 28 Jan 1999 10:21:24 -0800 (PST) From: John Polstra <jdp@polstra.com> To: dillon@apollo.backplane.com Cc: hackers@FreeBSD.ORG Subject: Re: 'cpdup' program, and question Message-ID: <199901281821.KAA11893@vashon.polstra.com> In-Reply-To: <199901270134.RAA27041@apollo.backplane.com> References: <199901260721.XAA14049@apollo.backplane.com> <19990126191810C.wghicks@wghicks.bellsouth.net>
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In article <199901270134.RAA27041@apollo.backplane.com>,
Matthew Dillon <dillon@apollo.backplane.com> wrote:
>
> :How do its features compare with CVSup?
>
> cvsup and cpdup are two totally different programs. cvsup manages
> CVS trees. cpdup is a templating/mirroring tool.
Your characterization of CVSup isn't accurate. CVSup is a fully
general mirroring tool which includes additional features and
speed-ups that are oriented toward CVS repositories. CVSup can be
used to mirror anything, including binary files, hard links, symbolic
links, and device nodes. It selects from a number of different kinds
of optimizations, depending on the type of file it is updating. In
addition to RCS file optimizations, it also includes the rsync
algorithm, a specialized algorithm for log files, and some others.
At least one commercial company employs CVSup to do field upgrades
of their FreeBSD-based product. In that application, CVSup upgrades
the entire root and /usr filesystems.
John
--
John Polstra jdp@polstra.com
John D. Polstra & Co., Inc. Seattle, Washington USA
"Nobody ever went broke underestimating the taste of the American public."
-- H. L. Mencken
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