SCM Migration

So you've made the decision to move away from your existing system and convert your whole project to Git. How can you do that easily?

Importing Subversion

Git comes with a script called git-svn that has a clone command that will import a subversion repository into a new git repository. There is also a free tool on the GitHub service that will do this for you.

$ git-svn clone http://my-project.googlecode.com/svn/trunk new-project

This will give you a new Git repository with all the history of the original Subversion repo. This takes a pretty good amount of time, generally, since it starts with version 1 and checks out and commits locally every single revision one by one.

Importing Perforce

In contrib/fast-import you will find the git-p4 script, which is a Python script that will import a Perforce repository for you.

$ ~/git.git/contrib/fast-import/git-p4 clone //depot/project/main@all myproject

Importing Others

These are other SCMs that listed high on the Git Survey, should find import docs for them. !!TODO!!

• CVS

• Mercurial (hg)

• Bazaar-NG

• Darcs
• ClearCase