Hatena blog to Day One exporter

hatena_blog2dayone.rb

require 'rb-dayone'

module HatenaBlog
  class Entry
    def initialize(entry)
      @entry = entry
    end

    def meta_data
      @entry.split("-----\n")[0]
    end

    def method_missing(name)
      return nil unless %i|title date status|.include?(name)
      meta_data.match(/#{name.upcase}:\s(.+?)$/)[1] rescue nil
    end

    def date_parsed
      date_splitted, time = date.split(' ')
      date_splitted = date_splitted.gsub(/(\d{2})\/(\d{2})\/(\d{4})/) { "#{$3}-#{$1}-#{$2}" }
      Time.parse("#{date_splitted} #{time}")
    end

    def body
      @entry.split("-----\n")[1].delete("BODY:\n")
    end

    def unified_body
      return body if title.nil?
      "#{title}\n\n#{body}"
    end

    def published?
      status == 'Publish'
    end

    def daraft?
      !published?
    end
  end
end

file = File.open("path/to/exported/log").read
entries = file.split("--------\n")

entries.each do |entry|
  hb_entry = HatenaBlog::Entry.new(entry)
  next if hb_entry.draft?
  begin
    do_entry = DayOne::Entry.new hb_entry.unified_body, creation_date: hb_entry.date_parsed
    do_entry.create!
    puts "#{hb_entry.title || hb_entry.body.gsub(/<.+?\/?>/, '')[0..12].concat('...')} has been successfully saved!"
  rescue => e
    puts entry.split("\n")[0..6].join("\n")
    puts e.message
    puts e.backtrace.join("\n")
  end
end