NewXzReader shells out to a command line xz executable (if available) to decompress the given io.Reader using the xz compression format and returns an *XzReader.

SelectivelyExtractArchive extracts the specified files and folders from targz data read from the given reader and store them in a map indexed by file paths.

func SelectivelyExtractToFile(r io.Reader, prefix string, toExtract []string, dir string) (map[string]string, error) {.

Unzip will decompress a zip archive, moving all files and folders within the zip file (parameter 1) to an output directory (parameter 2).

ErrCouldNotExtract occurs when an extraction fails.

ErrExtractedFileTooBig occurs when a file to extract is too big.

TarReadCloser embeds a *tar.Reader and the related io.Closer It is the caller's responsibility to call Close on TarReadCloser when done.

XzReader is an io.ReadCloser which decompresses xz compressed data.