Announce the beer time

beer_time.rb

# Simple but necessary script (for Mac) to announce when the beer time is comming
# You can configure your crontab like this
# 0 17 * * 5 ruby $HOME/scripts/beer_time.rb >> /var/log/beer_time.log 2>&1

beer_hour = ARGV[0] || 18

def say(message)
  `afplay /System/Library/Sounds/Hero.aiff`
  `afplay /System/Library/Sounds/Hero.aiff`
  `say "#{message}"`
end

while(true)
  now = Time.new
  beer_time = Time.local(now.year, now.month, now.day, beer_hour, 0)

  seconds_to_beer_time = beer_time - now

  if seconds_to_beer_time <= 0
    say("We are officially now at beer time")
    exit 0
  else
    say("We are at #{(seconds_to_beer_time / 60.to_f).round(1)} minutes to beer time")
  end

  seconds_to_sleep = rand(seconds_to_beer_time / 2) + 10 # minimum 10 seconds
  seconds_to_sleep = seconds_to_beer_time if seconds_to_sleep > seconds_to_beer_time

  puts "Next anouncement at #{Time.now + seconds_to_sleep}"

  sleep(seconds_to_sleep)
end

Some suggestions for modificaitons:

• An easy way to test the result locally, eg ruby beer_time.rb --test => 📢 'It is 40 minutes to beer time'
• A way to replace 'beer time' with a custom sound file, from the internet:
  curl -s http://x.com/x.mp3 > /tmp/x.mp3 && afplay /tmp/x.mp3
  Will this redownload the file if its already there? If not we get free caching ;)