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https://github.com/captn3m0/google-sre-ebook.git
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Fix Directory Structure Changes (#17)
* Improve wget invocation to get images as well * Fix relative links with new directory structure - A few links are still broken and tables don't render correctly yet - Fixes #14
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1
.gitignore
vendored
1
.gitignore
vendored
@ -1,5 +1,6 @@
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html/
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.direnv
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*.epub
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*.pdf
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*.mobi
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vendor/
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40
bootstrap.sh
40
bootstrap.sh
@ -1,26 +1,38 @@
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#!/bin/bash
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set -euo pipefail
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IFS=$'\n\t'
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# Cleanup
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rm -rf html
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mkdir -p html/index
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mkdir -p html/sre-book
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cd html
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TOC_URL="https://landing.google.com/sre/sre-book/toc/index.html"
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# Make sure that links are relative \
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# # Remove the /sre/ directories
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# Save stuff in html/ directory
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# Do not create a landing.google.com directory
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# Enable recursion, timestamping (--mirror)
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# Images are hosted elsewhere, download them as well.
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# We need to go up a level from /toc/ where we start
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wget \
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--convert-links \
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--directory-prefix=html \
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--page-requisites \
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--adjust-extension \
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--span-hosts \
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--trust-server-names \
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--backup-converted \
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--mirror \
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--no-verbose \
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--recursive \
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--domains=lh3.googleusercontent.com,landing.google.com https://landing.google.com/sre/sre-book/toc/index.html
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# Download
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wget --convert-links --mirror https://landing.google.com/sre/book/
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mv landing.google.com/sre/sre-book/* ./sre-book
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mv landing.google.com/sre/book/index.html ./index
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rm -rf landing.google.com
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cd ..
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MODE=${1:-}
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if [ $1 != "docker" ];then
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if [ "$MODE" != "docker" ];then
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bundle install
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fi
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ruby generate.rb
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pushd html/sre-book/chapters
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pandoc -f html -t epub -o ../../../google-sre.epub --epub-metadata=../../../metadata.xml --epub-cover-image=../../../cover.jpg sre.html
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pushd html/landing.google.com/sre/sre-book/toc
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pandoc -f html -t epub -o ../../../../../google-sre.epub --epub-metadata=../../../../../metadata.xml --epub-cover-image=../../../../../cover.jpg complete.html
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popd
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ebook-convert google-sre.epub google-sre.mobi
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ebook-convert google-sre.epub google-sre.pdf
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61
generate.rb
61
generate.rb
@ -1,17 +1,27 @@
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require 'nokogiri'
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require 'pp'
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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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chapter_links = Nokogiri::HTML(open("html/index/index.html"))
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Dir.chdir("html/landing.google.com/sre/sre-book/toc")
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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 = ''
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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>Site Reliability Engineering</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 chapter_link
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html += "<span class=\"hidden\" name=\"#{chapter_file}\"></span>"
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doc = Nokogiri::HTML(open("html/index/#{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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@ -25,9 +35,18 @@ chapter_links.each do |chapter_link|
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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 /^([\w-]+.html)#([\w-]+)$/
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if matches.length == 1
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a['href'] = '#' + matches[0][1]
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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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@ -36,11 +55,9 @@ chapter_links.each do |chapter_link|
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headers = (1..6).map {|x| "h#{x}"}
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# headers.each_with_index
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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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puts "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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@ -50,17 +67,17 @@ chapter_links.each do |chapter_link|
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end
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end
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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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# Link to a direct chapter
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matches = link.value.scan /^([\w-]+.html)$/
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if matches.length == 1
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a['href'] = '#' + matches[0][0]
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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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@ -69,11 +86,15 @@ chapter_links.each do |chapter_link|
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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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File.open("html/sre-book/chapters/sre.html", 'w') { |file| file.write(html) }
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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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