mirror of
https://github.com/captn3m0/google-sre-ebook.git
synced 2024-09-10 13:46:41 +00:00
99 lines
2.6 KiB
Ruby
99 lines
2.6 KiB
Ruby
require 'nokogiri'
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require 'pathname'
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require 'fileutils'
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# First we get the list of all the book sections:
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Dir.chdir("html/sre.google/%s/table-of-contents" % ENV['BOOK_NAME'])
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chapter_links = Nokogiri::HTML(open("index.html"))
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.css('#drop-down a')
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.map {|l| l.attribute('href').value}
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html = <<EOT
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<!DOCTYPE html>
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<html>
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<head>
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<title>#{ENV['BOOK_NAME_FULL']}</title>
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<meta charset="utf-8">
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</head>
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<body>
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EOT
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chapter_links.each do |chapter_link|
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chapter_file = File.basename File.dirname chapter_link
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html += "<span class=\"hidden\" id=\"#{chapter_file}\"></span>"
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doc = Nokogiri::HTML(open(chapter_link))
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content = doc.css('.content')
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# this title is with additional 'chapter X' in front
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title = doc.at_css('h2.chapter-title').content
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content.css('.cont').each do |e|
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e.remove
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end
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# Ensure that all links are to the same file
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content.css('a').each do |a|
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link = a.attribute('href')
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if link
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matches = link.value.scan /^(\S*index.html)+(#[\w-]+)?/
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# pp [link.value, matches] if link.value and link.value.include? 'lessons-learned'
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if matches.length == 1 and matches[0].length == 2
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# Self Links
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if matches[0][0] =="index.html" and matches[0][1]
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a['href'] = matches[0][1]
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# If it points to start of a different chapter
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else
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chapter_slug = File.basename File.dirname matches[0][0]
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a['href'] = "##{chapter_slug}"
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end
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end
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end
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end
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chapter_header = content.at('.heading')
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headers = (1..6).map {|x| "h#{x}"}
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content.css(headers.join(',')).each do |e|
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# If chapter heading
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if e == chapter_header
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e.name = 'h1'
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else
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# Reduce everything by 1
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i = headers.index e.name
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new_name = headers[i+1] ? headers[i+1] : 'h6'
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e.name = new_name
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end
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end
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content.css('img').each do |img|
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img_file = img.attribute('src')
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if img_file
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chapter_directory = File.dirname chapter_link
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absolute_image_path = Pathname.new File.absolute_path img_file, chapter_directory
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cwd = Pathname.new Dir.pwd
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img['src'] = absolute_image_path.relative_path_from cwd
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end
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end
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if content.children.css('section > h1').length > 0
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# remove additional parent section tag
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content = content.children.at_css('section')
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elsif content.children.css('div > h1').length > 0
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# remove additional parent div tag
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content = content.children.at_css('div')
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end
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# replace h1 title
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content.at_css('h1').inner_html = title
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html += content.inner_html
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end
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html+="</body></html>"
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File.open("complete.html", 'w') { |file| file.write(html) }
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puts "[html] Generated HTML file"
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