Function DetectCompression

pkg/archive/compression/compression.go:174–184

DetectCompression detects the compression algorithm of the source.

(source []byte)

// DetectCompression detects the compression algorithm of the source.
func DetectCompression(source []byte) Compression {
	for compression, fn := range map[Compression]matcher{
		Gzip: magicNumberMatcher(gzipMagic),
		Zstd: zstdMatcher(),
	} {
		if fn(source) {
			return compression
		}
	}
	return Uncompressed
}

// DecompressStream decompresses the archive and returns a ReaderCloser with the decompressed archive.
func DecompressStream(archive io.Reader) (DecompressReadCloser, error) {