From: Clement Ow <clement.ow@...>
Date: 2008-04-23T18:01:42+09:00
Subject: Re: Extract date from filenames using regex

> Can you post the smallest example that fails? Do you have files with
> different date formats?
> 
> Jesus.

    delete_date = DateTime.now - delete

    regexp = Regexp.compile(/(\d\d)(\d\d)(\d\d\d\d)/)


    fileData = Struct.new(:name, :size)
    deleted_files = []

    folders.each do |folder|
      Dir.glob(folder+"/*") do |file|
      puts match = regexp.match(File.basename(file))
        if match
          file_date = DateTime.strptime(match[1] , fmt='%d%M%Y')
          size = (File.size(file))/1024
          if delete_date > file_date
            deleted_files << fileData.new(file,size)
            FileUtils.rm_r file
            if File.exist?(file)==false
              puts "Files/Folders deleted: #{file} size: #{size} KB"
              end #if
            end #if
        end #if
      end #do
    end #each
  end #if
end #delFiles

>>it'll show this error:
c:/ruby/lib/ruby/1.8/date.rb:1536:in `new_by_frags': invalid date 
(ArgumentError
)
        from c:/ruby/lib/ruby/1.8/date.rb:1563:in `strptime'
        from testing.conf.rb:166:in `delFiles'

>>I do have files with different date formats, but the format yyyymmdd works when i use DateTime.parse maybe because DateTime accepts this format? however if i use strptime it also cant work. Any help will be greatly appreciated =)
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