SVN to GIT

Interesting additional tools

• Understanding git
• https://rtyley.github.io/bfg-repo-cleaner/
• git-filter-branch
• git subtree split https://developer.atlassian.com/blog/2015/05/the-power-of-git-subtree/
• Conversion of some properties (.gitignore) https://github.com/JohnAlbin/git-svn-migrate
• https://de.atlassian.com/git/tutorials/migrating-convert/ has some crappy magic
• http://www.sailmaker.co.uk/blog/2013/05/05/migrating-from-svn-to-git-preserving-branches-and-tags-3/

1 use git-svn

• to clone, a users.txt file is used to map users and avoid metadata if you do not intend anymore to use svn

git svn clone http://my-project.googlecode.com/svn/ \
  --authors-file=users.txt --no-metadata -s my_project

2 Get rid of git-svn-id metadata

• If you still had git-svn-id metadata inside the commit messages, you can get rid of them using:

git filter-branch -f --msg-filter 'sed -e "/git-svn-id:/d"'

3 Remove empty commits

• Remove empty commits by setting a default commit message

git filter-branch -f --msg-filter '
read msg
if [ -n "$msg" ] ; then
  echo "$msg"
else
  echo "`<empty commit message>`"
fi'