Update the creation date on all Evernote notes to match the date in their title

en-setdate.rb

#!/usr/local/bin/macruby  

# Update the creation date on all Evernote notes to match the date in their title
# The date format in the title must be 'yyyymmdd'
# Requires macruby to run

require 'date'
require 'optparse'

framework "ScriptingBridge"

module Evernote
  class Scripts
    def initialize
      @evernote = SBApplication.applicationWithBundleIdentifier("com.evernote.Evernote")
    end
    
    def change_creation_date(nb_name)
      @evernote.notebooks
        .find_all { |nb| nb.name =~ /#{nb_name}/ }
        .each do |notebook|
        puts "* #{notebook.name}"
        notebook.notes.each do |note|
          if note.title =~ /(20[01][0-9])([0-9]{2})([0-9]{2})/
            d = Date.new($1.to_i, $2.to_i, $3.to_i)
            if note.creationDate.strftime("%Y-%m-%d") == d.to_s
              puts "  - #{note.title}"
              puts "    : #{note.creationDate}"
              puts "    : Creation date correct: #{d}"
            else
              note.creationDate = Time.local(d.year, d.month, d.day,
                                             note.creationDate.hour, note.creationDate.min,
                                             note.creationDate.sec, note.creationDate.usec)
              puts "  - changed #{note.title} to #{note.creationDate}"
            end
          end
        end
      end
    end
  end
end

opts = OptionParser.new
@notebook = "@Inbox"
opts.on("-n", "--notebook NAME", String) do |notebook|
  @notebook = notebook
end

opts.parse(ARGV)
Evernote::Scripts.new.change_creation_date(@notebook)