require 'notmuch'

$db = Notmuch::Database.new(ARGV.first || Dir.home + '/mail')

q = $db.query('thread:0000000000000001')

msgs = q.search_messages
tags_array = []
msgs.each do |msg|
  GC.start
  p msg.tags
  tags_array << msg.tags
  puts msg.tags.to_a.to_s
end

puts '=' * 80

tags_array.each do |tag|
  puts tag.to_a.to_s
end