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A quick and dirty way to check for new courses on the (new) P2PU site.
#!/usr/bin/ruby
require 'net/smtp'
=begin
1. Download the file.
2. Make sure it is executable by running:
$ chmod +x newcourses.rb
3. Any time you want to check for new courses, just run:
$ ./newcourses.rb
=end
url = "http://new.p2pu.org/en/groups/"
File.exist?("courselist.txt")? old_list = File.read("courselist.txt") : old_list = ""
dir = ARGV[0]
page = %x[curl --silent #{url}]
courses = []
new_courses = []
page.each{|line|
course = line[/\/en\/groups\/[^"]*\//]
if course
courses << course
new_courses << course unless old_list[course]
end
}
unless new_courses.empty?
# append new courses to the saved courselist
new_courses = new_courses.uniq
File.open("courselist.txt", "a") {|f|
new_courses.each{|c| f.puts c }
}
# send an email with the changes
message = <<-MESSAGE_END
From: you@example.com
To: them@example.com
MIME-Version: 1.0
Content-type: text/html
Subject: New Courses on new.P2PU.org
<h1>New Courses Since Yesterday</h1>
MESSAGE_END
new_courses.each{|c|
course_url = "http://new.p2pu.org#{c}"
message << "<a href=\"#{course_url}\">#{course_url}</a><br>\n"
}
Net::SMTP.start('localhost') do |smtp|
smtp.send_message message, 'you@example.com',
'them@example.com'
end
end
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