Converting a Large SVN Repository Segment into a Git Repository
2013-08-30 19:51 (11 years ago)
ytyng
Prerequisites
- There is a large SVN repository, and one of the directories within it is the source code directory. The other directories contain documents and mysqldumps.
- We have been operating by performing an SVN checkout and updating only the source code directory.
- We want to migrate to Git.
- However, the directories other than the source code directory are large in size, so we do not want to include them in the repository.
What We Tried
- git svn clone -s --prefix svn/ http://my-svn-server/svn/myproject/ myproject
→ This results in a huge myproject repository that includes documents and mysqldumps.
- git svn clone -s --prefix svn/ http://my-svn-server/svn/myproject/source/ myproject
Using higher level of URL: W: Ignoring error from SVN, path probably does not exist: (175002): RA layer request failed: REPORT of '/svn/myproject
This error appears, and the clone cannot be completed.
How to Achieve It
First, clone the repository as is.
git svn clone -s --prefix svn/ http://my-svn-server/svn/myproject/ myproject cd myproject git svn create-ignore git commit -m 'add gitignore'
At this point, take a full copy of the local repository.
cd .. cp -r myproject myproject_work cd myproject_work
Use git filter-branch to keep only the commits for the source code!
git filter-branch --subdirectory-filter source HEAD
Remove unnecessary directories (optional).
rm -rf my-documents rm -rf my-mysqldumps
The repository is now complete. Push it.
git remote add origin my-remote-repo git push origin master
When there are updates to the SVN repository If the SVN repository is updated, perform a git svn rebase in the repository before filter-branch, and then follow the same steps to incorporate the changes into the Git repository.
cd .. rm -rf myproject_work cd myproject git svn rebase cd .. cp -r myproject myproject_work cd myproject_work git filter-branch --subdirectory-filter source HEAD rm -rf my-documents rm -rf my-mysqldumps git remote add origin my-remote-repo git pull origin master git push origin master
The author runs the application development company Cyberneura.
We look forward to discussing your development needs.
We look forward to discussing your development needs.