require 'gdbm'
require 'pstore'

unless ARGV.size == 2
  print "usage: gdbm2pstore.rb foo.gdbm bar.pstore\n"
  exit
end

src = ARGV.shift
dst = ARGV.shift

GDBM.open(src){|db|
  PStore.new(dst).transaction{|pstore|
    db.to_hash.each{|key,value|
      pstore[key] = value
    }
  }
}