git filter-branch --index-filter 'git ls-files -s | perl $HOME/map-filenames-from-svn-to-mvn/map.pl | GIT_INDEX_FILE=$GIT_INDEX_FILE.new git update-index --index-info && if [ -e "$GIT_INDEX_FILE.new" ]; then mv "$GIT_INDEX_FILE.new" "$GIT_INDEX_FILE" ; fi' -- --all
