Initial commit

Gemfile

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+source 'https://rubygems.org'
+
+gem 'nokogiri'
+gem 'twilio-ruby', '~> 4.11.1'

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    builder (3.2.2)
+    jwt (1.5.6)
+    mini_portile2 (2.1.0)
+    multi_json (1.12.1)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
+    twilio-ruby (4.11.1)
+      builder (>= 2.1.2)
+      jwt (~> 1.0)
+      multi_json (>= 1.3.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  nokogiri
+  twilio-ruby (~> 4.11.1)
+
+BUNDLED WITH
+   1.13.5

README.md

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+# Ruby User Group, 08 Nov 2016
+
+Text alerting on a website content change
+
+* web request
+
+require 'net/http'
+uri = URI('https://github.com/chrisvfritz')
+content = Net::HTTP.get(uri)
+
+* parse content
+
+require 'nokogiri'
+parsed = Nokogiri::HTML(content)
+chris\_face = parse.css('.avatar').attr('src').value
+
+* ??? (process)
+
+* send text
+
+require 'twilio-ruby'
+client = Twilio::REST::Client.new(account\_sid, auth\_token)
+client.messages.create(
+  from: from\_number,
+  to: notification\_number,
+  body: 'Repos changed'
+)

chris-stalker.rb

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+#!/bin/ruby
+
+require 'net/http'
+require 'nokogiri'
+require 'twilio-ruby'
+
+WAIT_TIME = 15
+account_sid = 'TWILIO_ACCOUNT'
+auth_token = 'TWILIO_TOKEN'
+
+from_number = '+15555555555'
+notification_number = '+15555555555'
+
+client = Twilio::REST::Client.new(account_sid, auth_token)
+
+last_time = 0
+previous_repos = []
+while true do
+	# web request
+	uri = URI('https://github.com/chrisvfritz')
+	content = Net::HTTP.get(uri)
+
+	# parse content
+	parsed = Nokogiri::HTML(content)
+	repos = parsed.css('.pinned-repo-item-content .d-block a').map do |r|
+		r.text.strip
+	end
+
+  # ??? (process)
+  if repos - previous_repos != []
+    time = Time.now.to_i
+    if time_past(time, last_time)
+      # send text
+      client.messages.create(
+        from: from_number,
+        to: notification_number,
+        body: 'Repos changed'
+      )
+      last_time = time
+    end
+
+    previous_repos = repos
+  end
+
+	sleep(2)
+end