perlsvnbashsvn-administraton

Get the highest revision number from a subversion dump file in Perl or shell

I would like to extract the highest revision number in a subversion dump file. Besides parsing the file line by line, is there any easier (and hopefully faster) way using standard perl (no extra modules allowed on the server) or bash shell scripting?

Solution

  • if you created a dump file using 

    svnadmin dump /path/to/repo > Dump1.dump

    The you can find the last revision number with this one-liner:

    grep --binary-files=text "Revision-number" Dump1.dump | tail -n 1 | sed 's/Revision-number\:\ //g'

    Alternately to avoid grepping the entire file, use tac (cat backwards) and stop on the first (last) match. Eliminates the need for tail on the large output of grep, and saves processing time.

    tac Dump1.dump | grep -m1 --binary-files=text "Revision-number" | sed 's/Revision-number\:\ //g'