Migration procedures for EPFL

Updated 2,669 Days AgoPublic

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This is the manual migration procedure, there's also a script to automate the migration, see Migration script for EPFL

Migration from GIT

1. Add a public ssh key to your account (or a VCS password)
2. Create repo in c4science
3. Clone a fresh copy of the repository and enter the directory (even if you already have a local copy, this ensure all the remote branches are fetched)

cd /tmp # or any directory of your choice
git clone --mirror https://rezzonic@git.epfl.ch/repo/scitas-benchmarks.git
cd scitas-benchmarks.git

4. Push everything to c4science, replace <URI> with the new c4science URI, for example ssh://git@c4science.ch/diffusion/PHTEST/test.git

git push --all <URI>
git push --tags <URI>

5. Wait until all the commits are parsed by Phabricator to be available on the web interface

6. You can clone your repository with the new URI

git clone <URI>

Migration from SVN

• You can either migrate from SVN to GIT (preferred), or SVN to SVN

SVN to GIT

• Have GIT installed
• It depends on how your svn repository is organized,
• If there are trunk/branches/tags directories:

git svn clone  https://svn.epfl.ch/svn/<repo name>/ --username <gaspar>

2. If your repository starts at the root, you can also replace / with a directory in your repo, the final git repository will contain only this directory (you allow to split your SVN repository into multiple GIT repo for instance)

git svn clone  https://svn.epfl.ch/svn/<repo name>/ --username <gaspar> --trunk /

• Create a GIT repo on c4science
• Add the remote to your new git repository

cd <repo name>
git remote add origin https://c4science.ch/code/<new repo>
git push origin master

SVN to SVN

• Create a subversion repository
• Be sure to have a SSH key configured (public ssh key)
• On the management page
  • Activate the repository
  • Activate "Allow Dangerous Changes"
• In your local computer, checkout the repository from svn.epfl.ch, go in the newly created directory
• Initialize and syncronize the repository with c4science using your new repository URL (change <ID> and <NAME> to match your repositories in c4science and svn.epfl.ch)

svnsync init svn+ssh://git@c4science.ch/diffusion/<ID>/  https://svn.epfl.ch/svn/<NAME>
svnsync sync svn+ssh://git@c4science.ch/diffusion/<ID>/

• Deactivate Dangerous Changes
• You can now checkout the new URL on your machine

svn checkout svn+ssh://git@c4science.ch/diffusion/<ID>/ myrepo

Service accounts

If you are using service accounts for your git and svn repositories, you can either use ssh keys on c4science or you can ask for a bot user.