Module: Jekyll::Drupal

Defined in:
lib/jekyll/migrators/drupal.rb

Constant Summary collapse

QUERY =

Reads a MySQL database via Sequel and creates a post file for each post in wp_posts that has post_status = ‘publish’. This restriction is made because ‘draft’ posts are not guaranteed to have valid dates.

"SELECT n.nid, \
       n.title, \
       nr.body, \
       n.created, \
       n.status \
FROM node AS n, \
     node_revisions AS nr \
WHERE (n.type = 'blog' OR n.type = 'story') \
AND n.vid = nr.vid"

Class Method Summary collapse

Class Method Details

.process(dbname, user, pass, host = 'localhost', prefix = '') ⇒ Object 



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# File 'lib/jekyll/migrators/drupal.rb', line 27

def self.process(dbname, user, pass, host = 'localhost', prefix = '')
  db = Sequel.mysql(dbname, :user => user, :password => pass, :host => host, :encoding => 'utf8')

  if prefix != ''
    QUERY[" node "] = " " + prefix + "node "
    QUERY[" node_revisions "] = " " + prefix + "node_revisions "
  end

  FileUtils.mkdir_p "_posts"
  FileUtils.mkdir_p "_drafts"

  # Create the refresh layout
  # Change the refresh url if you customized your permalink config
  File.open("_layouts/refresh.html", "w") do |f|
    f.puts <<EOF
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<meta http-equiv="refresh" content="0;url={{ page.refresh_to_post_id }}.html" />
</head>
</html>
EOF
  end

  db[QUERY].each do |post|
    # Get required fields and construct Jekyll compatible name
    node_id = post[:nid]
    title = post[:title]
    content = post[:body]
    created = post[:created]
    time = Time.at(created)
    is_published = post[:status] == 1
    dir = is_published ? "_posts" : "_drafts"
    slug = title.strip.downcase.gsub(/(&|&amp;)/, ' and ').gsub(/[\s\.\/\\]/, '-').gsub(/[^\w-]/, '').gsub(/[-_]{2,}/, '-').gsub(/^[-_]/, '').gsub(/[-_]$/, '')
    name = time.strftime("%Y-%m-%d-") + slug + '.md'

    # Get the relevant fields as a hash, delete empty fields and convert
    # to YAML for the header
    data = {
       'layout' => 'post',
       'title' => title.to_s,
       'created' => created,
     }.delete_if { |k,v| v.nil? || v == ''}.to_yaml

    # Write out the data and content to file
    File.open("#{dir}/#{name}", "w") do |f|
      f.puts data
      f.puts "---"
      f.puts content
    end

    # Make a file to redirect from the old Drupal URL
    if is_published
      aliases = db["SELECT dst FROM #{prefix}url_alias WHERE src = ?", "node/#{node_id}"].all

      aliases.push(:dst => "node/#{node_id}")

      aliases.each do |url_alias|
        FileUtils.mkdir_p url_alias[:dst]
        File.open("#{url_alias[:dst]}/index.md", "w") do |f|
          f.puts "---"
          f.puts "layout: refresh"
          f.puts "refresh_to_post_id: /#{time.strftime("%Y/%m/%d/") + slug}"
          f.puts "---"
        end
      end
    end
  end

  # TODO: Make dirs & files for nodes of type 'page'
    # Make refresh pages for these as well

  # TODO: Make refresh dirs & files according to entries in url_alias table
end