And then there was this time I had to mass-convert svn repos..

svn_mass_conversion.rb

#!/usr/bin/env ruby                                                                                                                                                                                             
require 'fileutils'                                                                                                                                                                                         

path_base = ARGV[0] || '~/Sources'
server_path = ARGV[1]
repo_list = ARGV[2] || 'svn_repo_list'
svn_dir   = File.expand_path File.join(path_base,'/svn')
git_dir   = File.expand_path File.join(path_base,'/git')

unless File.exists? auth_file
  puts 'you will need to build an authors file with:'
  puts %{svn log --quiet ${ARGV[1]} | grep -E "r[0-9]+ \| .+ \|" | awk '{print $3}' | uniq | sort}
  exit
end

svn_list = File.open(repo_list).map {|l| l.strip }
FileUtils.mkdir_p  svn_dir
FileUtils.mkdir_p  git_dir

Dir.chdir git_dir do |d|
  svn_list.map do |repo|
    puts "making dir, #{repo}"
    FileUtils.mkdir_p repo
    Dir.chdir repo do |repo_dir|
      `svn2git #{server_path}#{repo} --verbose --authors #{auth_file}`
    end
    puts "done\r\r"
  end
end