package zstd

import "github.com/google/go-containerregistry/internal/zstd"

Package zstd provides helper functions for interacting with zstd streams.

Index ¶

• Variables
• func Is(r io.Reader) (bool, error)
• func ReadCloser(r io.ReadCloser) io.ReadCloser
• func ReadCloserLevel(r io.ReadCloser, level int) io.ReadCloser
• func UnzipReadCloser(r io.ReadCloser) (io.ReadCloser, error)

Variables ¶

var MagicHeader = []byte{'\x28', '\xb5', '\x2f', '\xfd'}

MagicHeader is the start of zstd files.

Functions ¶

func Is ¶

func Is(r io.Reader) (bool, error)

Is detects whether the input stream is compressed.

func ReadCloser ¶

func ReadCloser(r io.ReadCloser) io.ReadCloser

ReadCloser reads uncompressed input data from the io.ReadCloser and returns an io.ReadCloser from which compressed data may be read. This uses zstd level 1 for the compression.

func ReadCloserLevel ¶

func ReadCloserLevel(r io.ReadCloser, level int) io.ReadCloser

ReadCloserLevel reads uncompressed input data from the io.ReadCloser and returns an io.ReadCloser from which compressed data may be read.

func UnzipReadCloser ¶

func UnzipReadCloser(r io.ReadCloser) (io.ReadCloser, error)

UnzipReadCloser reads compressed input data from the io.ReadCloser and returns an io.ReadCloser from which uncompressed data may be read.

Source Files ¶

zstd.go