Adds windows support and URL generation

Changes from @mikealbergquist

README.md

@@ -44,8 +44,8 @@ More details at https://www.tor.com/series/edgedancer-reread-brandon-sanderson/
 
 - Ruby
 - Nokogiri gem installed (`gem install nokogiri`)
-- Unix system with `wget` installed
 - `pandoc` installed and available (for all 3 formats)
+- Paru gem installed (`gem install paru`)
 - (mobi only): `ebook-convert` (from calibre) available to generate the mobi file
 - (pdf) `wkhtmltopdf` for converting html to pdf
 - (pdf) `pdftk` to stitch the final PDF file
@@ -53,6 +53,7 @@ More details at https://www.tor.com/series/edgedancer-reread-brandon-sanderson/
 - The final 2 tools can be skipped if you don't care about the PDF generation.
 - You can also skip calibre if you only want the EPUB file.
 - Edit the last line in `*.rb` to `:epub` / `:mobi`, `:pdf` to only trigger the specific builds
+- Windows users need wget. Download the latest wget.exe from https://eternallybored.org/misc/wget/ and add it's directory to the PATH environment variable or put it directly in C:\Windows.
 
 ## Generation
 

methods.rb

@@ -33,12 +33,20 @@ def format_match(format)
 end
 
 def gen_epub(name, _format)
-  if command?('pandoc') && format_match(:epub)
-    # Convert it to epub
-    `pandoc -S -o books/#{name}.epub --epub-metadata=metadata/#{name}.xml --epub-cover-image=covers/#{name}.jpg books/#{name}.html`
-    puts '[epub] Generated EPUB file'
-  else
-    puts "[error] Can't generate EPUB without pandoc"
+  if format_match(:epub)
+    begin
+      require "paru/pandoc"
+      Paru::Pandoc.new do
+        from "html"
+        to "epub"
+        epub_metadata "metadata/#{name}.xml"
+        epub_cover_image "covers/#{name}.jpg"
+        output "books/#{name}.epub"
+      end.convert File.read("books/#{name}.html")
+      puts '[epub] Generated EPUB file'
+    rescue LoadError
+      puts "[error] Can't generate EPUB without paru"
+    end
   end
 end
 

oathbringer.rb

@@ -9,16 +9,34 @@ BASE = 'https://www.tor.com/2017/'.freeze
 links = [
   '08/22/oathbringer-brandon-sanderson-prologue/',
   '08/29/oathbringer-brandon-sanderson-chapter-1-3/',
-  '09/05/oathbringer-by-brandon-sanderson-chapters-4-6/',
-  '09/12/oathbringer-by-brandon-sanderson-chapters-7-9/'
+  '09/05/oathbringer-by-brandon-sanderson-chapters-4-6/'
 ]
 
-links.last.split('/')
+manually_add_links = false;
 
-month = links.last.split('/').first
-day = links.last.split('/')[1]
-
-next_date = Date.new(2017, month.to_i, day.to_i) + 7
+if manually_add_links
+  # Only downloads links already added to array <links>
+  puts 'Downloading manually added links'
+  links.last.split('/')
+  month = links.last.split('/').first
+  day = links.last.split('/')[1]
+  next_date = Date.new(2017, month.to_i, day.to_i) + 7
+else
+  # Automatically adds all recent chapters
+  puts 'Downloading all found links'
+  chapter = Integer(links.last.split('-').last.gsub(/[^0-9]/, '')) + 1
+  next_date = Date.new(1970,01,01)
+  loop do
+    links.last.split('/')
+    month = links.last.split('/').first
+    day = links.last.split('/')[1]
+    next_date = Date.new(2017, month.to_i, day.to_i) + 7
+    links << "#{next_date.strftime("%m")}/#{next_date.strftime("%d")}/oathbringer-by-brandon-sanderson-chapters-#{chapter}-#{chapter + 2}/"
+    chapter += 3;
+    break if next_date + 7 > Date.today
+   end
+   next_date += 7;
+end
 
 episode = 1