Class: JekyllImport::Importers::Mephisto

Inherits:
JekyllImport::Importer show all
Defined in:
lib/jekyll-import/importers/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 If you’ve got unpublished, deleted or otherwise hidden posts please sift through the created posts to make sure nothing is accidently published.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

Methods inherited from JekyllImport::Importer

inherited, run, stringify_keys, subclasses

Class Method Details

.postgres(c) ⇒ Object

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



8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
# File 'lib/jekyll-import/importers/mephisto.rb', line 8

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 = %(psql -h #{c[:host] || "localhost"} -c "#{sql.strip}" #{c[:database]} #{c[:username]} -o #{c[:filename] || "posts.csv"})
  Jekyll.logger.info "Executing:", command
  `#{command}`
  CSV.process
end

.process(options) ⇒ Object 



60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
 
# File 'lib/jekyll-import/importers/mephisto.rb', line 60

def self.process(options)
  dbname = options.fetch("dbname")
  user   = options.fetch("user")
  pass   = options.fetch("password", "")
  host   = options.fetch("host", "localhost")

  db = Sequel.mysql2(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

.require_deps ⇒ Object 



29
30
31
32
33
34
35
36
37
 
# File 'lib/jekyll-import/importers/mephisto.rb', line 29

def self.require_deps
  JekyllImport.require_with_fallback(%w(
    rubygems
    sequel
    mysql2
    fastercsv
    fileutils
  ))
end

.specify_options(c) ⇒ Object 



39
40
41
42
43
44
 
# File 'lib/jekyll-import/importers/mephisto.rb', line 39

def self.specify_options(c)
  c.option "dbname",   "--dbname DB",   "Database name"
  c.option "user",     "--user USER",   "Database user name"
  c.option "password", "--password PW", "Database user's password (default: '')"
  c.option "host",     "--host HOST",   'Database host name (default: "localhost")'
end

.validate(options) ⇒ Object 



23
24
25
26
27
 
# File 'lib/jekyll-import/importers/mephisto.rb', line 23

def self.validate(options)
  %w(dbname user).each do |option|
    abort "Missing mandatory option --#{option}." if options[option].nil?
  end
end