Get all files for a Gemspec using SVN.

get_svn_files.rb

# This function asks svn to list the status of all
# files in the repository. Then we filter out files
# that aren't versioned and aren't files.

# See also: svn help st
#   $ svn help st
#   status (stat, st): Print the status of working copy files and directories.
#   ...
#     With -v, print full revision information on every item.

def get_svn_files
  `svn st -v`.lines.map do |line|
    unless line.match(/^\?/)
      line.match(/\S+$/)[0]
    end
  end.compact.reject {|p| File.directory? p}
end

I use this instead of svn ls -R -r BASE because the svn list command makes requests to the server. This can feel dreadfully slow at times.

Personally, I use it like this

files = get_svn_files
test_files = files.find_all {|f| f.match(/^spec|feature/)}
gem.files = files
gem.test_files = test_files