Module: BagIt::Fetch

Included in:
Bag
Defined in:
lib/bagit/fetch.rb

Instance Method Summary collapse

Instance Method Details

#add_remote_file(url, path, size, sha1, md5) ⇒ Object 



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# File 'lib/bagit/fetch.rb', line 11

def add_remote_file(url, path, size, sha1, md5)
  open(fetch_txt_file, 'a') { |io| io.puts "#{url} #{size || '-'} #{path}" }
  open(manifest_file('sha1'), 'a') { |io| io.puts "#{sha1} #{File.join 'data', path}" }
  open(manifest_file('md5'), 'a') { |io| io.puts "#{md5} #{File.join 'data', path}" }
end

#fetch! ⇒ Object

feth all remote files



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# File 'lib/bagit/fetch.rb', line 18

def fetch!

  open(fetch_txt_file) do |io|
    
    io.readlines.each do |line|
      
      (url, length, path) = line.chomp.split(/\s+/, 3)
      
      add_file(path) do |io|
        io.write open(url)
      end
      
    end
    
  end

  # rename the old fetch.txt
  Dir["#{fetch_txt_file}.?*"].sort.reverse.each do |f|
    
    if f =~ /fetch.txt.(\d+)$/
      new_f = File.join File.dirname(f), "fetch.txt.#{$1.to_i + 1}"
      FileUtils::mv f, new_f
    end
    
  end

  # move the current fetch_txt
  FileUtils::mv fetch_txt_file, "#{fetch_txt_file}.0"
end

#fetch_txt_file ⇒ Object 



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# File 'lib/bagit/fetch.rb', line 7

def fetch_txt_file
  File.join @bag_dir, 'fetch.txt'
end