you want to know the commits that never made it into svn

not_in_svn.rb

# usage:
# git log | ruby not_in_svn.rb | less
# license: Apache 2.0
# copyright: J Chris Anderson 2011
# this might be too trivial to copyright

def print_if_no_match buffer, regex
  text = buffer.join("\n")
  unless text.match(regex)
    puts text
    puts
  end
end

buffer = []
while line=gets.chomp
  if line.match(/^commit/)
    print_if_no_match buffer, /git-svn/
    buffer = [line]
  else
    buffer.push line
  end
end

Here's a public domain statement for you:

Authors

• J Chris Anderson

To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this work.