Compress places the canary byte in a buffer and uses the same buffer to fill in the compressed information of the given input. The configuration supports two type of compression: LZW and Gzip. When using Gzip compression format, if GzipCompressionLevel is not specified, the 'gzip.DefaultCompression' will be assumed.
Decompress checks if the first byte in the input matches the canary byte. If the first byte is a canary byte, then the input past the canary byte will be decompressed using the method specified in the given configuration. If the first byte isn't a canary byte, then the utility returns a boolean value indicating that the input was not compressed.
SnappyReadCloser embeds the snappy reader which implements the io.Reader interface. The decompress procedure in this utility expects an io.ReadCloser. This type implements the io.Closer interface to retain the generic way of decompression.
Close is a noop method implemented only to satisfy the io.Closer interface
CompressionConfig is used to select a compression type to be performed by Compress and Decompress utilities. Supported types are: * CompressionTypeLZW * CompressionTypeGzip * CompressionTypeSnappy * CompressionTypeLZ4
When using CompressionTypeGzip, the compression levels can also be chosen: * gzip.DefaultCompression * gzip.BestSpeed * gzip.BestCompression