Module: Jekyll::Mephisto

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

Constant Summary collapse

QUERY =

This query will pull blog posts from all entries across all blogs. If you’ve got unpublished, deleted or otherwise hidden posts please sift through the created posts to make sure nothing is accidently published.

"SELECT id, \
       permalink, \
       body, \
       published_at, \
       title \
FROM contents \
WHERE user_id = 1 AND \
      type = 'Article' AND \
      published_at IS NOT NULL \
ORDER BY published_at"

Class Method Summary collapse

Class Method Details

.postgres(c) ⇒ Object

Accepts a hash with database config variables, exports mephisto posts into a csv export PGPASSWORD if you must



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# File 'lib/jekyll/migrators/mephisto.rb', line 21

def self.postgres(c)
  sql = <<-SQL
  BEGIN;
  CREATE TEMP TABLE jekyll AS
    SELECT title, permalink, body, published_at, filter FROM contents
    WHERE user_id = 1 AND type = 'Article' ORDER BY published_at;
  COPY jekyll TO STDOUT WITH CSV HEADER;
  ROLLBACK;
  SQL
  command = %Q(psql -h #{c[:host] || "localhost"} -c "#{sql.strip}" #{c[:database]} #{c[:username]} -o #{c[:filename] || "posts.csv"})
  puts command
  `#{command}`
  CSV.process
end

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



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# File 'lib/jekyll/migrators/mephisto.rb', line 50

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

  FileUtils.mkdir_p "_posts"

  db[QUERY].each do |post|
    title = post[:title]
    slug = post[:permalink]
    date = post[:published_at]
    content = post[:body]

    # Ideally, this script would determine the post format (markdown,
    # html, etc) and create files with proper extensions. At this point
    # it just assumes that markdown will be acceptable.
    name = [date.year, date.month, date.day, slug].join('-') + ".markdown"

    data = {
       'layout' => 'post',
       'title' => title.to_s,
       'mt_id' => post[:entry_id],
     }.delete_if { |k,v| v.nil? || v == ''}.to_yaml

    File.open("_posts/#{name}", "w") do |f|
      f.puts data
      f.puts "---"
      f.puts content
    end
  end

end