pdf_compiler.rb

#!/usr/bin/env ruby

require 'rmagick'

# def compile_pdfs
#   puts 'Writing'
#   title = `cat build/title.t`
#   start_chapters = `cat build/start.t`.split(',').map(&:to_i)
#   end_chapters = `cat build/end.t`.split(',').map(&:to_i)
#   start_chapters.each_with_index do |start_chap, i|
#     image_list = []
#     (start_chap..end_chapters[i]).each do |chap|
#       dir = "./build/Chapter_#{chap}"
#       num_pages = Dir[File.join(dir, '**', '*')].count { |file| File.file?(file)}
#       for num in 0..num_pages - 1
#         image_list.push("build/Chapter_#{chap}/page_#{num}.jpg")
#       end
#     end
#     img = Magick::ImageList.new(*image_list)
#     img.write("out/#{title}_chap_#{start_chap}-#{end_chapters[i]}.pdf")
#     puts "Done writing chapters #{start_chap}-#{end_chapters[i]}"
#   end
#   `rm -rf build`
# end

def compile_pdfs(start_chapter, end_chapter)
  puts 'Writing'
  title = `cat build/title.t`
  image_list = []
  (start_chapter..end_chapter).each do |chap|
    dir = "./build/Chapter_#{chap}"
    num_pages = Dir[File.join(dir, '**', '*')].count { |file| File.file?(file)}
    for num in 0..num_pages - 1
      image_list.push("build/Chapter_#{chap}/page_#{num}.jpg")
    end
  end
  img = Magick::ImageList.new(*image_list)
  img.write("out/#{title}_chap_#{start_chapter}-#{end_chapter}.pdf")
  puts "Done writing chapters #{start_chapter}-#{end_chapter}"
  `rm -rf build`
end