Migrate an svn repository to git and github

svn2github

# Assume your svn repo is located at svn://example.com/myapp/trunk
# Assume your git repo will be located at git@github.com:example/myapp.git

# First you need to generate a list of all committers in your svn tree.
# Credit David Wheeler
# http://www.justatheory.com/computers/tricks/list-all-svn-committers.html
$ svn log --quiet svn://example.com/myapp/trunk | grep '^r' | awk '{print $3}' | sort -u

# Next, create a file in your home directory named svn-committers following this format
mojombo = Tom Preston-Werner <tom@github.com>
defunkt = Chris Wanstrath <chris@wanstrath.com>

# Finally, do the migration
# Credit Jon Maddox for some of this
# http://www.jonmaddox.com/2008/03/05/cleanly-migrate-your-subversion-repository-to-a-git-repository/
$ cd ~ && mkdir myapp-tmp && cd myapp-tmp
$ git svn init svn://example.com/myapp/trunk/ --no-metadata
$ git config svn.authorsfile ~/svn-committers
$ git svn fetch
$ cd ..
$ git clone myapp-tmp myapp
$ cd myapp
$ git remote set-url origin git@github.com:example/myapp.git
$ git push origin master

If, like me, you're trying to do this from a remote server with a large repo, you'll run into timeout problems. You have to do this locally.