create yyyy-mm folders for your photos

folderizer

# Depends on the command line tool: exiftool
# brew install exiftool

# it also works with mov files if they have
# exif data. I know my iPhone adds the exif

photos = Dir.glob("*.jpg",File::FNM_CASEFOLD)

photos.each do |file_path|
	file_path = file_path.gsub(' ','\ ')
	puts file_path
	date = `exiftool #{file_path} | grep "Create Date"`
	puts "no creation date for #{file_path}" && next if date.chomp == ""
	year, month, day = date.chomp.split(": ").last.split(" ").first.split(":")
	folder_name = "#{year}-#{month}"
	`mkdir #{folder_name}` unless Dir::exists?(folder_name)

	`mv #{file_path} #{folder_name}/#{file_path}`
	
end