WebUpdateChecker

This library polls an URL and notifies if the contents is changed. This is useful if you want to be notified as soon as a web site contents is changed.

Installation

Add this line to your application's Gemfile:

gem 'web_update_checker'

And then execute:

$ bundle

Or install it yourself as:

$ gem install web_update_checker

Usage

main.rb

require 'mail'
require 'web_update_checker'

regex = /<h1>(.*)<\/h1>/
url = 'http://example.com/'

mail = Mail.new do
  from:    'TODO@example.com'
  to:      'TODO@example.com'
  subject: 'Web site is updated!'
  body:     url
end

mail.delivery_method :smtp, {
  address:   'localhost',
  port:      25,
}

WebUpdateChecker::Checker.new(url, regex, mail).execute

Execute like a following CLI

% while [ true ]; do; ruby main.rb; sleep 30; done

Contributing

1. Fork it ( http://github.com/matsubo/web_update_checker/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request