Evernote Backup Script (Mac)

evernote_backup.rb

#!/usr/bin/env ruby

require "pathname"
require "fileutils"
require "date"

BACKUP_PATH = "~/Documents/evernote_backup"

def osascript(script)
  system "osascript", *script.split(/\n/).map { |line| ["-e", line] }.flatten
end

def copy_backup(src, dst, rotate: 5)
  src_path = File.expand_path(src)
  dst_path = File.expand_path(dst)
  name = File.basename(src)
  name = File.join(dst_path, name) # full path
  return false unless Pathname.new(name).absolute?
  backup_filename = name + "-" + Time.new.strftime("%Y%m%d%H%M%S") + ".tar.gz"
 
  cmd = "tar cfzp #{backup_filename} #{src_path}"
  `#{cmd}`
  purge_old_backups(name, rotate)
end

def purge_old_backups(backup_name, rotate)
  files = []
  Dir.glob("#{backup_name}-*.tar.gz").each do |f|
    files << f
  end
  files.sort!
  (files.size - rotate).times.each do 
    puts "Removing #{files.first} ..."
    FileUtils.rm(files.shift)
  end
end

def export_notes(export_to, format: "ENEX")
  osascript <<-EOS
    set dest to "#{export_to}"
  
    with timeout of (1 * 60 * 60) seconds
        tell application "Evernote"
            -- Set date to 1990 so it finds all notes
            set matches to find notes "created:19900101"
            -- export to file set above
            export matches to dest format #{format} with tags
        end tell
    end timeout
  EOS
end

tmp_path = File.expand_path("~/Documents/export_enex")
export_notes(tmp_path, format: "ENEX")
backup_path = File.expand_path(BACKUP_PATH)
FileUtils.mkdir(backup_path) unless Dir.exist?(backup_path)
copy_backup(tmp_path, backup_path, rotate: 3)
FileUtils.rm_rf(tmp_path)

if Date.today.wday == 1 # Monday
  tmp_path = File.expand_path("~/Documents/export_html")
  export_notes(tmp_path, format: "HTML")
  copy_backup(tmp_path, backup_path, rotate: 1)
  FileUtils.rm_rf(tmp_path)
end