Move photos downloaded from flickr to a directory by date taken

Gemfile

# frozen_string_literal: true

source "https://rubygems.org"

gem 'exif', '~> 2.2', '>= 2.2.3'%    

main.rb

require 'exif'
require 'fileutils'

BASE_DIR = "REPLACE_HERE"
OUT_DIR = "REPLACE_HERE"

idx = 0

Dir.glob(BASE_DIR + "/*.jpg") do |file|    
    puts file
    data = Exif::Data.new(File.open(file))
    dir_name = data[:exif][:date_time_original].slice(0..9).gsub(/:/, "-")
    puts dir_name
    Dir.mkdir(OUT_DIR + '/' + dir_name) unless Dir.exists?(OUT_DIR + '/' + dir_name)
    
    dest = "#{OUT_DIR}/#{dir_name}/#{File.basename(file)}"
    FileUtils.mv(file, dest)

    idx += 1
end

puts "Move #{idx} files."