mr-recache

#!/usr/bin/ruby

CACHE = File.join(ENV['HOME'], '.mrcache')
TMP = CACHE + '.new'

Dir.chdir ENV['HOME']

current_dir = nil
got_error = false

File.open(TMP, 'w') do |tmp|
  IO.popen('mr dir 2>&1') do |lines|
    lines.each do |line|
      case line
      when /^- (.+?)	(.+?)	(.+?)$/
        name, dir, config = $1, $2, $3
        tmp.puts "#{name} #{dir}"
      when /^mr dir: (skipped|failed to chdir to)/
      when /^mr dir: (~.+)/
        current_dir = $1
        $stderr.print line if got_error
        got_error = false
      when /^\s*$/
      else
        $stderr.print line
        got_error = true
      end
    end
  end
end

File.rename TMP, CACHE