Qiita::Team お引越しスクリプト

Rakefile

require 'json'
require 'yaml'
require 'nokogiri'
require 'uri'
require 'faraday'
require 'ostruct'
require 'pry'

def y data
  puts YAML.dump data
end

def fetch_img(item)
  html = Nokogiri::HTML.parse(item.body)
  html.css('img').each_with_index do |node, i|
    uri = URI.parse(node[:src])
    if uri.host.to_s.match(/qiita-image-store/)
      filename = "#{item.uuid}-#{i}#{File.extname(uri.path)}"
      File.binwrite("./images/#{filename}", Faraday.get(uri).body)
      item.raw_body.sub!(/#{uri}/, "./images/#{filename}")
    end
  end
end

def fetch_icon(item)
  name = item.user.url_name
  url = item.user.profile_image_url
  filename = "#{name}#{File.extname(url)}"
  unless File.exists?(filename)
    File.binwrite("./images/#{filename}", Faraday.get(url).body)
  end
  "./images/#{filename}"
end

desc ''
task :default do
  system "rm -rf ./data"
  system "mkdir -p ./data"

  data = JSON.parse(File.read('data.json'), object_class: OpenStruct)

  Dir.chdir('./data') do
    data.articles.each do |article|
      body = ''

      author = article.user.url_name
      title = article.title.gsub(/[\p{P}]/, '-').gsub(/[[:blank:]]/, '-')
      created_at = Time.at(article.created_at_as_seconds)
      day = created_at.strftime('%F')
      filename = "%s-%s-%s.md" % [day, author, title]

      year = created_at.year
      month = created_at.month
      system "mkdir -p #{year}/#{month}/images"
      Dir.chdir("#{year}/#{month}") do

        body << "# #{title}\n\n"

        fetch_img(article)
        body << "#{article.raw_body}\n\n"

        icon = fetch_icon(article)
        system "mogrify -resize 32x #{icon}"
        body << "Posted at #{created_at} by <img src=\"#{icon}\"> #{author}\n\n"

        if article.comments.length > 0
          article.comments.each do |comment|
            body << "<hr>\n\n"

            fetch_img(comment)
            body << "#{comment.raw_body}\n\n"

            icon = fetch_icon(comment)
            system "mogrify -resize 32x #{icon}"
            body << "Comment posted by <img src=\"#{icon}\"> #{comment.user.url_name}\n\n"
          end
        end

        File.write(filename, body)
      end
    end
  end
end