25 lines
592 B
Ruby
25 lines
592 B
Ruby
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require 'zlib'
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require 'stringio'
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module ActiveSupport
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# A convenient wrapper for the zlib standard library that allows compression/decompression of strings with gzip.
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module Gzip
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class Stream < StringIO
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def close; rewind; end
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end
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# Decompresses a gzipped string.
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def self.decompress(source)
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Zlib::GzipReader.new(StringIO.new(source)).read
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end
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# Compresses a string using gzip.
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def self.compress(source)
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output = Stream.new
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gz = Zlib::GzipWriter.new(output)
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gz.write(source)
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gz.close
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output.string
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end
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end
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end
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