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Re: Difference between 'svn update' and 'svn checkout'

From: Blair Zajac <blair_at_orcaware.com>
Date: Fri, 11 Nov 2011 19:06:33 -0800

On 11/11/2011 06:41 PM, Andy Levy wrote:
> On Fri, Nov 11, 2011 at 21:12, Welington Rodrigues Braga
> <welrbraga_at_welrbraga.eti.br> wrote:
>> Hi guys,
>>
>> I've just started to use Subversion a few months ago and I am really
>> are asking me why I had never used it before but it is not the reason
>> of my contact. To be honest I am trying to to do a post-commit script
>> that automatically sincronizes a given workcopy when any of my users
>> commits their modifications to my repository.
>>
>> Although it's is ok and working fine (at least in my simples test), I
>> did not put in production yet because I have a doubt that neither
>> Subversion manual or Google were able to answer me. I didn't find any
>> difference beetwen 'svn update' and 'svn checkout' commands which is
>> the main function of my post-commit script.
>>
>> Nowadays I'm using 'svn checkout' and it is working, like I said, but
>> I'm not sure if I'm losing some functionality with this option.
>>
>> Can anyone help me and answer my question?
>
> svn checkout creates a new working copy.
>
> svn update updates an existing working copy.

As Andy said, but there is some special behavior in checkout. If you
run svn checkout on top of an existing working copy it'll work if the
URL is the same as the working copy URLs, but otherwise fail, so this
may explain the behavior you see. But if you did

svn co $URL1 dir
svn co $URL2 dir

the second one would fail.

It's best to do something like this

if test -d dir; then
   svn up dir
else
   svn co $URL dir
fi
Received on 2011-11-12 04:07:14 CET

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