Files
jekyll/lib/jekyll/migrators/drupal.rb

104 lines
3.5 KiB
Ruby

require 'rubygems'
require 'sequel'
require 'fileutils'
require 'safe_yaml'
# NOTE: This converter requires Sequel and the MySQL gems.
# The MySQL gem can be difficult to install on OS X. Once you have MySQL
# installed, running the following commands should work:
# $ sudo gem install sequel
# $ sudo gem install mysql -- --with-mysql-config=/usr/local/mysql/bin/mysql_config
module Jekyll
module Drupal
# 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.
QUERY = "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"
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
end
end