svn2git

Shell scripts to migrate SVN repositories to Git

Migrating an SVN Repository to Git (subversion-git-migration)

Gathering User Information

	svn co REPOPATH repo
	cd repo
	svn log -q | awk -F '|' '/^r/ {sub("^ ", "", $2); sub(" $", "", $2); print $2" = "$2" <"$2">"}' | sort -u > authors-transform.txt

This will create authors-transform.txt with all the committers from the SVN repository specified by REPOPATH with dummy Git committer information, such as:

	svn_committer = svn_committer <[email protected]>

Once this is done, you can edit the file, and enter in each users actual name and email address on the right side of the equals sign. This will be the Git author information used during the migration.

Cloning the SVN Repository

Once your user mapping is completed, you can now clone the SVN repository directly using git svn clone.

	git svn clone [subversion_repository_url] --stdlayout --no-metadata -A authors.txt ./repo

Cleaning Up

If you had tags in the SVN repository, these are now remote branches for each tag. To display these you will want to run:

	cd /path/to/repo
	git branch -r

For each tag displayed you will want to run:

	git tag tagname tags/tagname
	git branch -r -d tags/tagname

Deleting trunk branch

If you don't want to get svn trunk as a Git branch, you will want to run:

	git branch -r -d origin/trunk

Pushing to Origin

Congratulations! You have created a Git repository with all the history, and authors set correctly. Now, we are on to the last step. You will want to push the Repository up to Origin so it is available to other users in the account. If you haven't already created an empty Git repository in your account, do that now. Then follow these commands:

	cd /path/to/repo
	git remote add origin https://subdomain.unfuddle.com/git/subdomain_abbreviation/
	git push origin master
	git push --tags

Now this repository can be accessed by users in the project simply by cloning the repository using git clone. Enjoy using Git!

Pushing branches to Origin

From stackoverflow:

So you have your repository and all the branches inside, but you still need to checkout those branches for the git push --all command to actually push those too.

You should do this before you push:

	for remote in `git branch -r | grep -v master `; do git checkout --track $remote ; done

Followed by

	git push --all

Notes

Some useful commands to filter branches

Filter tag branches

	for remote in `git branch -r | grep tags `; do echo $remote ; done

Filter tag branch names

	for remote in `git branch -r | grep tags `; do echo $remote | sed 's/.*\///' ; done