Fix errors like
svn: Your .svn/text-base directory may be missing or corrupt; run 'svn cleanup' and try again
svn: Can't open file 'blabla/.svn/text-base/entries': No such file or directory

require 'pathname'

def recurse(dir)
  for child in dir.children
    next unless child.directory?              # ignore files
    next if child.basename.to_s == '.svn'     # ignore .svn directory
    next unless (child + '.svn').exist?       # ignore unadded directories
    text_base_dir = child + '.svn/text-base'  # path to text-base dir
    next if text_base_dir.exist?              # ignore existing text-base dirs
    text_base_dir.mkdir
    puts text_base_dir
    recurse child
  end
end

recurse Pathname.new('.')