How to import svn branches and tags into git-svn?

You’ll need several steps.

  1. supply proper trunk, branches and tags folder names and fetch svn repo:

    git svn init -t tags -b branches -T trunk https://mysvn.com/svnrepo
    git svn fetch
    
  2. Since tags in svn are real branches, create git tags from tag branches:

    git for-each-ref --format="%(refname:short) %(objectname)" refs/remotes/tags |  cut -d / -f 3- |
    while read ref
    do
      echo git tag -a $ref -m 'import tag from svn'
    done
    
  3. Delete tag branches

    git for-each-ref --format="%(refname:short)" refs/remotes/tags | cut -d / -f 2- |
    while read ref
    do 
      echo git branch -rd $ref
    done
    
  4. Since tags marked in the previous step point to a commit “create tag”, we need to derive “real” tags, i.e. parents of “create tag” commits.

    git for-each-ref --format="%(refname:short)" refs/tags |
    while read ref
    do
      tag=`echo $ref | sed 's/_/./g'` # give tags a new name
      echo $ref -\> $tag
      git tag -a $tag `git rev-list -2 $ref | tail -1` -m "proper svn tag"
    done
    
  5. All we have to do now is to remove old tags.

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