I’m using git a lot, and lately I started to publish my WordPress stuff on github.

Some of that code are plugins, and as you may know WordPress.org are using SVN a lot. I’ve googled a lot of solutions on how to publish code from git to svn, untill I discovered the steps below.

First you will need to know the revision of your initial repo (you can also call it repository creation commit). You can find it by searching trac or any other web interface that handles the SVN log. Let’s say in my example I had to search for some-maps plugin creation commit. Go to this link, by replacing KEYWORD with your repo name:
http://plugins.trac.wordpress.org/search?q=KEYWORD

The revision number you need is the one in squared brackets.

Now it’s easy. Open your .git/config file, and append/modify the svn-remote part:

[svn-remote "svn"]
        url = https://plugins.svn.wordpress.org
        fetch = KEYWORD/trunk:refs/remotes/trunk
        branches = KEYWORD/branches/*:refs/remotes/*
        tags = KEYWORD/tags/*:refs/remotes/tags/*

Once you’re finished, use the git svn fetch command, like this:
git svn fetch -r REVISION_NUMBER

Now all you need is to switch to svn branch, I suggest you creating a new banch that will be synced with svn trunk:
git checkout trunk -b svn

Now you can merge master to svn, commit and tag:

git checkout svn
git merge master
git svn dcommit
git svn tag TAG_NAME

Happy forking!