Module: Compressible

Included in:
Normalizer, Smepable
Defined in:
lib/escoffier/compressible.rb

Instance Method Summary collapse

Instance Method Details

#unzip(entry, options = Hash.new) ⇒ Object

Unzips a file on the filesystem using the bzip2 algorithm. Pass in a path to a file, and optional options.

options: :output_path => ‘path’ Where the file should go if not the same directory as the zipped file. :remove_original => [true] Specify if the original zipped file should be removed after unzipping. :recursive => [true]



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# File 'lib/escoffier/compressible.rb', line 10

def unzip(entry, options = Hash.new)
  
  if options[:recursive]
    Find.find(entry) do |entry|
      next unless File.exists?(entry)
      next if File.directory?(entry)
      next unless entry =~ /.bz2$/
      
      unzip_entry(entry, options)
    end
  else
    unzip_entry(entry, options)
  end
  
end

#zip(file, options = Hash.new) ⇒ Object

Zips a file on the filesystem using the bzip2 algorithm. Pass in a path to a file, and optional options. options: :output_path => Where the file should go if not the same directory as the unzipped file. :remove_original => [true] Specify if the original zipped file should be removed after unzipping.



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# File 'lib/escoffier/compressible.rb', line 32

def zip(file, options = Hash.new)
  if options[:output_path]
    output_path = options[:output_path]
  else 
    output_path = File.dirname(File.expand_path(file))
  end
  
  options[:remove_original] = true if options[:remove_original].nil?
  
  decompressed_filename = File.expand_path(file)
  compressed_filename = File.join(output_path, File.basename(file) + '.bz2')
  puts "Compressing #{decompressed_filename} to #{compressed_filename}"
  Bzip2::Writer.open(compressed_filename, 'w') do |compressed_file|
    File.open(decompressed_filename, 'r') do |decompressed_file|
      compressed_file << decompressed_file.read
    end
  end

  if File.exist?(compressed_filename)
    File.delete(decompressed_filename) if options[:remove_original]
  end
  
  return compressed_filename
end