Archive all email in a google mail account

gmail-archiver.rb

#!/usr/bin/env ruby

require 'rubygems'

require 'gmail'
require 'fileutils'

username = ''
password = ''
root = Dir.pwd

Gmail.connect(username, password) do |gmail|
  begin
    gmail.mailbox("[Gmail]/All Mail").emails.each_with_index do |email, n|
      begin
        path = email.message.date.strftime('%Y/%m/%d')
        filename = '%s_%06d' % [ email.message.date.strftime('%H%M%S'), (email.uid || rand(999999)) ]
        #STDOUT.puts("[%6d]: #{path}/#{filename}" % n)
        FileUtils.mkpath("#{root}/#{path}")
        File.open("#{root}/#{path}/#{filename}", "w") do |io|
          io.write(email.message.raw_source)
        end
      rescue Exception => e
        put "Message #{email.uid} threw #{e.class}: #{e.message}"
      end
    end
  rescue Exception => e
    puts "Caught #{e.class}: #{e.message}"
  end
end