Tom Preston-Werner
commit
d36a1064a7
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@ -1,119 +1,195 @@
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require 'rubygems'
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require 'nokogiri'
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require 'open-uri'
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require 'fileutils'
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require 'CGI'
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require 'iconv'
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require 'nokogiri'
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require 'date'
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require 'json'
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require 'uri'
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require 'jekyll'
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module Jekyll
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module Tumblr
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def self.process(url, grab_images = false)
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current_page = 0
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while true
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f = open(url + "/api/read?num=50&start=#{current_page * 50}")
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doc = Nokogiri::HTML(Iconv.conv("utf-8", f.charset, f.readlines.join("\n")))
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puts "Page: #{current_page + 1} - Posts: #{(doc/:tumblr/:posts/:post).size}"
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FileUtils.mkdir_p "_posts/tumblr"
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(doc/:tumblr/:posts/:post).each do |post|
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title = ""
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content = nil
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name = nil
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if post['type'] == "regular"
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title_element = post.at("regular-title")
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title = title_element.inner_text unless title_element == nil
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content = CGI::unescapeHTML post.at("regular-body").inner_html unless post.at("regular-body") == nil
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elsif post['type'] == "link"
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title = post.at("link-text").inner_html unless post.at("link-text") == nil
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if post.at("link-text") != nil
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content = "<a href=\"#{post.at("link-url").inner_html}\">#{post.at("link-text").inner_html}</a>"
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else
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content = "<a href=\"#{post.at("link-url").inner_html}\">#{post.at("link-url").inner_html}</a>"
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end
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content << "<br/>" + CGI::unescapeHTML(post.at("link-description").inner_html) unless post.at("link-description") == nil
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elsif post['type'] == "photo"
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content = ""
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if post.at("photo-link-url") != nil
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content = "<a href=\"#{post.at("photo-link-url").inner_html}\"><img src=\"#{save_file((post/"photo-url")[1].inner_html, grab_images)}\"/></a>"
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else
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content = "<img src=\"#{save_file((post/"photo-url")[1].inner_html, grab_images)}\"/>"
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end
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if post.at("photo-caption") != nil
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content << "<br/>" unless content == nil
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content << CGI::unescapeHTML(post.at("photo-caption").inner_html)
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end
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elsif post['type'] == "audio"
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content = CGI::unescapeHTML(post.at("audio-player").inner_html)
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content << CGI::unescapeHTML(post.at("audio-caption").inner_html) unless post.at("audio-caption") == nil
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elsif post['type'] == "quote"
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content = "<blockquote>" + CGI::unescapeHTML(post.at("quote-text").inner_html) + "</blockquote>"
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content << "—" + CGI::unescapeHTML(post.at("quote-source").inner_html) unless post.at("quote-source") == nil
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elsif post['type'] == "conversation"
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title = post.at("conversation-title").inner_html unless post.at("conversation-title") == nil
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content = "<section><dialog>"
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(post/:conversation/:line).each do |line|
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content << "<dt>" + line['label'] + "</dt><dd>" + line.inner_html + "</dd>" unless line['label'] == nil || line == nil
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end
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content << "</section></dialog>"
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elsif post['type'] == "video"
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title = post.at("video-title").inner_html unless post.at("video-title") == nil
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content = CGI::unescapeHTML(post.at("video-player").inner_html)
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content << CGI::unescapeHTML(post.at("video-caption").inner_html) unless post.at("video-caption") == nil
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end # End post types
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name = "#{Date.parse(post['date']).to_s}-#{post['id'].downcase.gsub(/[^a-z0-9]/, '-')}.html"
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if title != nil || content != nil && name != nil
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File.open("_posts/tumblr/#{name}", "w") do |f|
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f.puts <<-HEADER
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---
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layout: post
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title: #{title}
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---
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HEADER
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f.puts content
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end # End file
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end
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end # End post XML
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if (doc/:tumblr/:posts/:post).size < 50
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break
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else
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current_page = current_page + 1
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def self.process(url, format = "html", grab_images = false,
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add_highlights = false, rewrite_urls = true)
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@grab_images = grab_images
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FileUtils.mkdir_p "_posts/tumblr"
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url += "/api/read/json/"
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per_page = 50
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posts = []
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# Two passes are required so that we can rewrite URLs.
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# First pass builds up an array of each post as a hash.
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begin
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current_page = (current_page || -1) + 1
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feed = open(url + "?num=#{per_page}&start=#{current_page * per_page}")
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json = feed.readlines.join("\n")[21...-2] # Strip Tumblr's JSONP chars.
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blog = JSON.parse(json)
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puts "Page: #{current_page + 1} - Posts: #{blog["posts"].size}"
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posts += blog["posts"].map { |post| post_to_hash(post, format) }
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end until blog["posts"].size < per_page
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# Rewrite URLs and create redirects.
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posts = rewrite_urls_and_redirects posts if rewrite_urls
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# Second pass for writing post files.
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posts.each do |post|
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if format == "md"
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post[:content] = html_to_markdown post[:content]
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post[:content] = add_syntax_highlights post[:content] if add_highlights
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end
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end # End while loop
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end # End method
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File.open("_posts/tumblr/#{post[:name]}", "w") do |f|
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f.puts post[:header].to_yaml + "---\n" + post[:content]
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end
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end
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end
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private
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def self.save_file(url, grab_image = false)
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unless grab_image == false
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FileUtils.mkdir_p "tumblr_files"
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File.open("tumblr_files/#{url.split('/').last}", "w") do |f|
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f.write(open(url).read)
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end
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return "/tumblr_files/#{url.split('/').last}"
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else
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return url
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# Converts each type of Tumblr post to a hash with all required
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# data for Jekyll.
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def self.post_to_hash(post, format)
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case post['type']
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when "regular"
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title = post["regular-title"]
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content = post["regular-body"]
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when "link"
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title = post["link-text"] || post["link-url"]
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content = "<a href=\"#{post["link-url"]}\">#{title}</a>"
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unless post["link-description"].nil?
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content << "<br/>" + post["link-description"]
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end
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when "photo"
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title = post["photo-caption"]
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max_size = post.keys.map{ |k| k.gsub("photo-url-", "").to_i }.max
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url = post["photo-url"] || post["photo-url-#{max_size}"]
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ext = "." + post[post.keys.select { |k|
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k =~ /^photo-url-/ && post[k].split("/").last =~ /\./
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}.first].split(".").last
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content = "<img src=\"#{save_file(url, ext)}\"/>"
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unless post["photo-link-url"].nil?
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content = "<a href=\"#{post["photo-link-url"]}\">#{content}</a>"
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end
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when "audio"
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if !post["id3-title"].nil?
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title = post["id3-title"]
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content = post.at["audio-player"] + "<br/>" + post["audio-caption"]
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else
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title = post["audio-caption"]
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content = post.at["audio-player"]
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end
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when "quote"
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title = post["quote-text"]
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content = "<blockquote>#{post["quote-text"]}</blockquote>"
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unless post["quote-source"].nil?
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content << "—" + post["quote-source"]
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end
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when "conversation"
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title = post["conversation-title"]
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content = "<section><dialog>"
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post["conversation"]["line"].each do |line|
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content << "<dt>#{line['label']}</dt><dd>#{line}</dd>"
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end
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content << "</section></dialog>"
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when "video"
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title = post["video-title"]
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content = post["video-player"]
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unless post["video-caption"].nil?
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content << "<br/>" + post["video-caption"]
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end
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end
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date = Date.parse(post['date']).to_s
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title = Nokogiri::HTML(title).text
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slug = title.downcase.strip.gsub(' ', '-').gsub(/[^\w-]/, '')
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{
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:name => "#{date}-#{slug}.#{format}",
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:header => {
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"layout" => "post",
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"title" => title,
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"tags" => post["tags"],
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},
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:content => content,
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:url => post["url"],
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:slug => post["url-with-slug"],
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}
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end
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# Create a Hash of old urls => new urls, for rewriting and
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# redirects, and replace urls in each post. Instantiate Jekyll
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# site/posts to get the correct permalink format.
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def self.rewrite_urls_and_redirects(posts)
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site = Jekyll::Site.new(Jekyll.configuration({}))
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dir = File.join(File.dirname(__FILE__), "..")
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urls = Hash[posts.map { |post|
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# Create an initial empty file for the post so that
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# we can instantiate a post object.
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File.open("_posts/tumblr/#{post[:name]}", "w")
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tumblr_url = URI.parse(post[:slug]).path
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jekyll_url = Jekyll::Post.new(site, dir, "", "tumblr/" + post[:name]).url
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redirect_dir = tumblr_url.sub(/\//, "") + "/"
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FileUtils.mkdir_p redirect_dir
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File.open(redirect_dir + "index.html", "w") do |f|
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f.puts "<html><head><meta http-equiv='Refresh' content='0; " +
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"url=#{jekyll_url}'></head><body></body></html>"
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end
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[tumblr_url, jekyll_url]
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}]
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posts.map { |post|
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urls.each do |tumblr_url, jekyll_url|
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post[:content].gsub!(/#{tumblr_url}/i, jekyll_url)
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end
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post
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}
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end
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# Uses Python's html2text to convert a post's content to
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# markdown. Preserve HTML tables as per the markdown docs.
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def self.html_to_markdown(content)
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preserve = ["table", "tr", "th", "td"]
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preserve.each do |tag|
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content.gsub!(/<#{tag}/i, "$$" + tag)
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content.gsub!(/<\/#{tag}/i, "||" + tag)
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end
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content = %x[echo '#{content.gsub("'", "''")}' | html2text]
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preserve.each do |tag|
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content.gsub!("$$" + tag, "<" + tag)
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content.gsub!("||" + tag, "</" + tag)
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end
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content
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end
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# Adds pygments highlight tags to code blocks in posts that use
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# markdown format. This doesn't guess the language of the code
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# block, so you should modify this to suit your own content.
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# For example, my code block only contain Python and JavaScript,
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# so I can assume the block is JavaScript if it contains a
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# semi-colon.
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def self.add_syntax_highlights(content)
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lines = content.split("\n")
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block, indent, lang, start = false, /^ /, nil, nil
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lines.each_with_index do |line, i|
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if !block && line =~ indent
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block = true
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lang = "python"
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start = i
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elsif block
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lang = "javascript" if line =~ /;$/
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block = line =~ indent && i < lines.size - 1 # Also handle EOF
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if !block
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lines[start] = "{% highlight #{lang} %}"
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lines[i - 1] = "{% endhighlight %}"
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end
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lines[i] = lines[i].sub(indent, "")
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end
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end
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lines.join("\n")
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end
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def self.save_file(url, ext)
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if @grab_images
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path = "tumblr_files/#{url.split('/').last}"
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path += ext unless path =~ /#{ext}$/
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FileUtils.mkdir_p "tumblr_files"
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File.open(path, "w") { |f| f.write(open(url).read) }
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url = "/" + path
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end
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url
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end
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end
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end
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