MECOP Merge Resume PDFs using Ghostscript

resumes.rb

require 'open-uri'
require 'csv'

class Student
  attr_accessor :id
  attr_accessor :stage

  def initialize(id:, stage:)
    self.id = id
    self.stage = stage
  end

  # Fetches the student's resume using the mecopinc.org preview-resume-form.
  # preview-resume-form requires an authenticated cookie.
  def fetch_resume(cookie)
    url = "https://www.mecopinc.org/members/preview-resume-form?type=#{self.stage}&id=#{self.id}"
    puts url
    File.open("./#{self.id}.pdf", "w") do |f|
      pdf = open(url, "Cookie" => cookie)
      pdf.each_line do |line|
        f.write(line)
      end
    end
  end
end

students = []
CSV.foreach(ARGV[0]) do |row|
  students << Student.new(id: row[0], stage: row[1])
end

# Iterate over teams and fetch each student's resume.
students.each do |student|
  puts "#{student.id}"
  student.fetch_resume(ARGV[1])
end

# Sort students by last name, first name and construct valid filenames
files = students.map{|s| "./#{s.id}.pdf" }.join(' ')

# Set CLI options for GhostScript
# -q         Quiet
# -dNOPAUSE  Disables the prompt and pause at the end of each page. 
# -dBATCH    Causes Ghostscript to exit after processing all files named on the 
#            command line, rather than going into an interactive loop reading PostScript 
#            commands. Equivalent to putting -c quit at the end of the command line.
# -sDEVICE   Selects an alternate initial output device, in this case pdfwrite.
options = "-q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite"

# Append resumes together using GhostScript
system "gs #{options} -sOutputFile=2015_cecop_resumes.pdf #{files}"