Re: git-svn merge helper

["Björn Steinbrink" <B.Steinbrink@gmx.de>]

On 2007.10.02 18:04:58 -0400, Steven Walter wrote:
> On Tue, Oct 02, 2007 at 11:14:00PM +0200, Björn Steinbrink wrote:
> > One common pattern in SVN is to have the feature branch following the
> > trunk. In git terms, that would mean that the feature branch is
> > continually rebased onto the HEAD of the HEAD AFAICT (although SVN of
> > course cannot represent that). The problem with that is, that git
> > doesn't create a merge commit in that case and git-svn gets confused
> > again.
> > 
> > git checkout mybranch
> > git merge master # Creates a merge commit
> > git checkout master
> > git merge mybranch # Does just fast forward
> > 
> > Is there anyway to force a merge commit or some other work around?
> 
> When I want to do something like this, I go about it one of two ways.
> The first option is to simply rebase mybranch onto master.  Since my
> feature branches are not usually published, there is no problem
> rewinding them.  That may not be an option for you, however.

Unfortunately not, the branch in question is required to be in the SVN
repository.

> The other option is to have a "build" branch.  By example:
> 
> git checkout build
> git reset --hard master
> git merge mybranch
> make
> 
> In that way, I have branch with the latest changes from head and the
> changes from mybranch together.  The downside to this method is that you
> may have to repeated resolve merges.  Despite the downsides, I find
> these two methods to work quite well.

Thanks, but it makes no difference here, it stil results in a fast
forward. This is a small test case which exhibits the behaviour and
matches my current workflow with git-svn (except for the dcommits):

git init
echo Hi > file1; git add file1; git commit -m file1
git checkout -b branch
echo Hi > file2; git add file2; git commit -m file2
git checkout master
echo Hi > file3; git add file3; git commit -m file3
git checkout branch
git merge master

# Then I'd normally do the following which causes a fast forward
#git checkout master
#git merge branch

# Now I tried this, which also results in a fast-forward:
git checkout -b merge
git reset --hard master
git merge branch


Anything I'm missing?

Thanks,
Björn