When you get “fatal: Empty path component found in input” errors from git fast-import, check that your export tool doesn’t write out path values that start with a slash. In my case, my rule file for svn-all-fast-export matched paths like “/project/trunk”, when I should’ve used “/project/trunk/” (note the trailing slash).
Pro-Tip for svn-all-fast-export: Use –metadata=no to get rid of the svn info in the generated git commits. It’s not really advertised as an option.
blog.elsdoerfer.name 
Thanks a lot for this hint! I was wondering what was wrong and there you go, no slash at the end of the rule. They even write about that:
All rules matching directories need to end with a ‘/’, else the tool will crash at some point. This is a known bug. The only exception are the rules using the recurse-action.
I am wondering why not add a validation on the rules file, is this a feature or a bug? 🙂
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