Create a backup git repo for a git-svn clone. To restore from such a backup, see: https://gist.github.com/rage-shadowman/6471961

git-backup-svn-based-repo.sh

#!/bin/sh

if [ "$#" -ne 1 ]
then
   echo 'Usage: $0 <existing-bare-git-repo>'
   exit 1
fi

if ! git ls-remote "$1" > /dev/null  2>&1
then
   echo "No git repo found at: $1"
   echo
   echo "You must first create a bare repo. To create one at 'user@host:backup/myproject.git' run the following"
   echo "   ssh user@host git init --bare backup/myproject.git"
   echo
   echo 'Usage: $0 <existing-bare-git-repo>'
   exit 1
fi

git remote add backup "$1"
git config remote.backup.fetch do_not_fetch_from_backup
git config remote.backup.push '+refs/remotes/*:refs/remotes/*'
git push backup