script to fetch emails from gmail, without marking them as read

gmail.rb

require 'net/imap'
require 'highline/import'

# Get username and password from console, via highline
username = ask('Username: ')
password = ask('Password: ') {|q| q.echo = false }

messages = {} # Because messages[7239]=... makes an ugly array

imap = Net::IMAP.new('imap.gmail.com', 993, true) # Connect to server
imap.login(username, password) # Authenticate
imap.select('INBOX') # Open the inbox
imap.search(['NOT', 'SEEN']).each do |message_id|
  msg = imap.fetch(message_id, "RFC822")[0] # Read message
  messages[msg.seqno] = msg.attr["RFC822"]  # Store content locally
  imap.store(message_id, "-FLAGS", [:Seen]) # Mark as unread
end

imap.logout() # Log out. Still connected.
imap.disconnect() # Disconnect

# Debug printing stuff
messages.each do |key,val|
  puts "#{key}:"
  val.split("\n").map { |l| puts "     #{l}" }
end