SVN ignore is a pain. This script soothes it.

gistfile1.rb

#!/usr/bin/env ruby -wKU

## A response to <http://jacobian.org/writing/svn-usability/>.

USAGE = <<USAGE
usage: svnignore [--stop] [FILE...]
Tells SVN to ignore each FILE.
Recurses into directories as needed.
--stop stops SVN from ignoring each FILE.
USAGE

if ARGV.empty?
  puts USAGE
  exit 1
end

if STOP_IGNORING = ARGV.first == "--stop"
  ARGV.shift
end

TMP_FILE = ".svnignore-temporary-file--feel-free-to-rm"

files_grouped_by_directory = ARGV.group_by{|file| File.dirname(file)}
files_grouped_by_directory.each do |directory, files|
  unless Dir.exists?(directory)
    $stderr.puts "svnignore: #{directory}: No such directory"
    next
  end
  
  files = files.map{|file| File.basename(file)}
  
  already_ignoring = `svn propget svn:ignore #{directory}`.split
  ignore = if STOP_IGNORING
    already_ignoring - files
  else
    (already_ignoring + files).uniq
  end
  
  begin
    File.open(TMP_FILE, 'w'){|io| ignore.each{|f| io.puts(f)}}
    puts `svn propset svn:ignore --file #{TMP_FILE} #{directory}`
  ensure
    File.delete(TMP_FILE)
  end
end