Class: Rpub::Compressor

Inherits:

Object

• Object
• Rpub::Compressor

show all

Defined in:

lib/rpub/compressor.rb

Overview

Instance Attribute Summary (collapse)

• - (ZipOutputStream) zip readonly

Class Method Summary (collapse)

• + (Object) open(filename) {|compressor| ... }

  Convenience method for opening a stream, allowing content to be written and finally closing the stream again.

Instance Method Summary (collapse)

• - (Object) close

  Close the zip stream and write the file to disk.

• - (Object) compress_file(filename, content)

  Store a file with maximum compression in the archive.

• - (Compressor) initialize(filename) constructor

  A new instance of Compressor.

• - (Object) store_file(filename, content)

  Store a file in the archive without any compression.

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# File 'lib/rpub/compressor.rb', line 19

def initialize(filename)
  @zip = Zip::ZipOutputStream.new(filename)
end

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# File 'lib/rpub/compressor.rb', line 8

def zip
  @zip
end

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# File 'lib/rpub/compressor.rb', line 12

def self.open(filename)
  compressor = new(filename)
  yield compressor
  compressor.close
end

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# File 'lib/rpub/compressor.rb', line 24

def close
  zip.close
end

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# File 'lib/rpub/compressor.rb', line 41

def compress_file(filename, content)
  zip.put_next_entry filename, nil, nil, Zip::ZipEntry::DEFLATED, Zlib::BEST_COMPRESSION
  zip.write content.to_s
end

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# File 'lib/rpub/compressor.rb', line 32

def store_file(filename, content)
  zip.put_next_entry filename, nil, nil, Zip::ZipEntry::STORED, Zlib::NO_COMPRESSION
  zip.write content.to_s
end