Re: [boost] trunk vs release

Subject: Re: [boost] trunk vs release
From: troy d. straszheim (troy_at_[hidden])
Date: 2009-05-22 11:38:42

Beman Dawes wrote:
> On Thu, May 21, 2009 at 2:40 PM, Vladimir Prus <vladimir_at_[hidden]>wrote:
> 
>> troy d. straszheim wrote:
>>
>>> I share your worry.   Probably some scm mechanism should take care of
>>> it.   I'm out of ideas for the moment.
>> svn:externals in SVN allow you to have master copies of headers say in
>>
>>        libs/thread/include
>>
>> and have a copy checked out into
>>
>>       boost/thread
>>
>> while making commits in boost/thread work, and commit into the master
>> copy. Disk requirements are a question, though.
> 
> 
> I also really worried about this header issue.
> 
> Volodya, thanks for the svn:externals suggestion. I'll try to learn more
> about svn:externals so I can form an opinion.
> 

I said I was "out of ideas", but that was a little disingenuous.  This 
is certainly one of many possible implementations, but I urge caution 
here.  We've been using svn:externals for subproject management for a 
while, against the conventional wisdom.    It makes merging even harder, 
can turn a large difficult-to-merge project into an impossible to merge 
project.  You can end up needing to write tools to wrangle your 
externals.  It won't be too hard to make a sample implementation to show 
how it works, I think this will help clarify things.

-t