Download all 2018S CPSC322 files

get_322_files.rb

require "open-uri"
# Last lec is 23, first is 01
# Ex Assignment link: https://www.cs.ubc.ca/~poole/cs322/2018/as1/as1.pdf
# EX Lec link: https://www.cs.ubc.ca/~poole/cs322/2018/slides/lect23s.pdf

def get_as_link(num)
  return "https://www.cs.ubc.ca/~poole/cs322/2018/as#{num}/as#{num}.pdf"
end

def get_as_sol_link(num)
  return "https://www.cs.ubc.ca/~poole/cs322/2018/as#{num}/as#{num}sol.pdf"
end

def get_lec_link(num)
  return "https://www.cs.ubc.ca/~poole/cs322/2018/slides/lect#{num}s.pdf"
end

def download_file(name, link)
  download = open(link)
  IO.copy_stream(download, Dir.pwd + name)
end

as_dir_name = "assignmnets"
Dir.mkdir(as_dir_name) unless File.exist?(as_dir_name)

# Download assignments & solutions
(1..10).step(1) do |i|
  begin
    download_file("/#{as_dir_name}/as#{i}.pdf", get_as_link(i))
  rescue OpenURI::HTTPError
    puts "404 for as#{i}.pdf"
  end

  begin
    download_file("/#{as_dir_name}/as#{i}sol.pdf", get_as_sol_link(i))
  rescue OpenURI::HTTPError
    puts "404 for as#{i}sol.pdf"
  end
end

lec_dir_name = "lectures"
Dir.mkdir(lec_dir_name) unless File.exist?(lec_dir_name)

# Download lectures
(1..23).step(1) do |i|
  begin
    lect_n = "%02d" % i
    download_file("/#{lec_dir_name}/lect#{lect_n}.pdf", get_lec_link(lect_n))
  rescue OpenURI::HTTPError
    puts "404 for lect#{i}.pdf"
  end
end