Class: JekyllImport::Importers::Ghost

Inherits:
JekyllImport::Importer show all
Defined in:
lib/jekyll-import/importers/ghost.rb

Class Method Summary collapse

Methods inherited from JekyllImport::Importer

inherited, run, stringify_keys, subclasses

Class Method Details

.fetch_posts(dbfile) ⇒ Object 



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# File 'lib/jekyll-import/importers/ghost.rb', line 31

def fetch_posts(dbfile)
  db = Sequel.sqlite(dbfile)
  query = "SELECT `title`, `slug`, `markdown`, `created_at`, `published_at`, `status`, `page` FROM posts"
  db[query]
end

.process(options) ⇒ Object 



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# File 'lib/jekyll-import/importers/ghost.rb', line 18

def self.process(options)
  posts = fetch_posts(options.fetch("dbfile", "ghost.db"))
  unless posts.empty?
    FileUtils.mkdir_p("_posts")
    FileUtils.mkdir_p("_drafts")
    posts.each do |post|
      write_post_to_file(post)
    end
  end
end

.require_deps ⇒ Object 



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# File 'lib/jekyll-import/importers/ghost.rb', line 8

def self.require_deps
  JekyllImport.require_with_fallback(%w(
    rubygems
    sequel
    sqlite3
    fileutils
    safe_yaml
  ))
end

.specify_options(c) ⇒ Object 



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# File 'lib/jekyll-import/importers/ghost.rb', line 4

def self.specify_options(c)
  c.option "dbfile", "--dbfile", "Database file (default: ghost.db)"
end

.write_file(filename, frontmatter, content) ⇒ Object 



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# File 'lib/jekyll-import/importers/ghost.rb', line 71

def write_file(filename, frontmatter, content)
  File.open(filename, "w") do |f|
    f.puts frontmatter
    f.puts "---"
    f.puts content
  end
end

.write_post_to_file(post) ⇒ Object 



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# File 'lib/jekyll-import/importers/ghost.rb', line 37

def write_post_to_file(post)
  # detect if the post is a draft
  draft = post[:status].eql?("draft")

  # detect if the post is considered a static page
  page = post[:page]

  # the publish date if the post has been published, creation date otherwise
  date = Time.at(post[draft ? :created_at : :published_at].to_i)

  if page
    # the filename under which the page is stored
    filename = "#{post[:slug]}.markdown"
  else
    # the directory where the file will be saved to. either _drafts or _posts
    directory = draft ? "_drafts" : "_posts"

    # the filename under which the post is stored
    filename = File.join(directory, "#{date.strftime("%Y-%m-%d")}-#{post[:slug]}.markdown")
  end

  # the YAML FrontMatter
  frontmatter = {
    "layout" => page ? "page" : "post",
    "title"  => post[:title],
  }
  frontmatter["date"] = date if !page && !draft # only add the date to the frontmatter when the post is published
  frontmatter["published"] = false if page && draft # set published to false for draft pages
  frontmatter.delete_if { |_k, v| v.nil? || v == "" } # removes empty fields

  # write the posts to disk
  write_file(filename, frontmatter.to_yaml, post[:markdown])
end