jtrapja-fetchlatest.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'pit'
require 'mechanize'
require 'logger'
require 'uri'
require 'fileutils'

MY_DROPBOX_BASE="/path/to/your/dropbox/folder"
BASE_URL = 'https://esrv.org/jtrapja'

def extract_rev_of(link)
  link.href[/-(\d+)M?/, 1].to_i
end

def fetch_latest_pdf(links, type, user, pwd)
  candidates = links.select{|e| e.href =~ /agile-samurai-ja.+-#{type}-.*/}
  latest = candidates.sort_by{|e| extract_rev_of(e)}.reverse.first
  url = [BASE_URL, latest.href].join('/')
  wget_cmd = "wget --no-check-certificate --user=#{user} --password=#{pwd} #{url}"
  puts wget_cmd;system(wget_cmd)
  File.basename(latest.href)
end

config = Pit.get('esrv.org', :require => {
    'username' => 'id for esrv.org',
    'password' => 'password for esrv.org'})

clean_target = Dir.glob("./agile-samurai*screen*.pdf*") || []
FileUtils.rm(clean_target, :verbose => true) if 0 < clean_target.size

agent = Mechanize.new
agent.auth((user = config['username']), (pwd = config['password']))
agent.get(BASE_URL)
file_names = agent.page.links_with(:text => /agile-samurai/)

ja_latest_fname = fetch_latest_pdf(file_names, 'ja', user, pwd)
enja_latest_fname = fetch_latest_pdf(file_names, 'enja', user, pwd)

FileUtils.mv(ja_latest_fname, File.join(MY_DROPBOX_BASE, 'agile-samurai-ja-latest.pdf'))
FileUtils.mv(enja_latest_fname, File.join(MY_DROPBOX_BASE, 'agile-samurai-enja-latest.pdf'))
File.open(File.join(MY_DROPBOX_BASE, 'agile-samurai-version.txt'), 'w') do |f|
  f.puts ja_latest_fname
  f.puts enja_latest_fname
end