[PD-dev] time for svn?

[Hans-Christoph Steiner]

On Feb 26, 2006, at 6:29 AM, David Plans Casal wrote:

>
> On 26 Feb 2006, at 09:51, Frank Barknecht wrote:
>>
>>> Oh, and the tag called "HEAD" in CVS is
>>> usually a directory called "trunk" in SVN.
>>
>> Let me rephrase this a bit, because it's not correct the way I said
>> it: When considering HEAD as a revision, then of course svn also  
>> has a
>> current, HEAD revision. What I actually meant to say was that the  
>> MAIN
>> branch of CVS usually is a "trunk" directory (or many of them) in  
>> SVN.
>
> It's probably worth noting that there is a very good 'SVN for CVS  
> users' chapter in the red bean book, here:
>
> http://svnbook.red-bean.com/nightly/en/svn-book.html#svn.forcvs

Thanks, that's a good start.

But I must say, there is an arrogance to the documentation which I  
find distasteful.  I'd like to see the "advantages and disadvantages"  
section, rather than "forget all you know, because SVN is so much  
better".  That's a dangerous attitude, every system has  
disadvantages, and the developers should be aware of them.

For example, I am sure there are disadvantages to having per-commit  
versions rather than per-file like CVS.  I'd like to hear the  
discussion rather than having someone tell me "forget the other way,  
this way is better".  Here's a good paper comparing CVS and SVN:

http://www.jini.org/docs/cvs_vs_subversion.pdf

Here's something from the GNU Arch wiki:

http://wiki.gnuarch.org/SubVersionAndCvsComparison

Here's a discussion from the gcc dev list about their switch:

http://gcc.gnu.org/ml/gcc/2005-10/msg00528.html

I think they spell it out, basically branching and merging is better  
in SVN, the rest is largely the same in terms of efficiency.  I think  
we should be doing more branching and merging, so its sounds like SVN  
is the way.  I just want to make sure what we are getting into.

.hc

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