zstd

Documentation

Index

• type ChunkedExtractor
  • func NewChunkedExtractor(reader io.ReaderAt, size int64) *ChunkedExtractor
  • func (e *ChunkedExtractor) ExtractFile(ctx context.Context, targetPath string, outputPath string) error
  • func (e *ChunkedExtractor) ListFiles(ctx context.Context) ([]string, error)
• type Extractor
  • func NewExtractor(layer v1.Layer) *Extractor
  • func (e *Extractor) ExtractFile(ctx context.Context, targetPath string, outputPath string) error
  • func (e *Extractor) ListFiles(ctx context.Context) ([]string, error)

Types

type ChunkedExtractor

type ChunkedExtractor struct {
	// contains filtered or unexported fields
}

ChunkedExtractor handles file extraction from zstd:chunked (stargz-zstd) layers zstd:chunked is a seekable format similar to eStargz but using zstd compression

func NewChunkedExtractor

func NewChunkedExtractor(reader io.ReaderAt, size int64) *ChunkedExtractor

NewChunkedExtractor creates a new zstd:chunked extractor

func (*ChunkedExtractor) ExtractFile

func (e *ChunkedExtractor) ExtractFile(ctx context.Context, targetPath string, outputPath string) error

ExtractFile extracts a specific file from a zstd:chunked layer

func (*ChunkedExtractor) ListFiles

func (e *ChunkedExtractor) ListFiles(ctx context.Context) ([]string, error)

ListFiles lists all files in a zstd:chunked layer

type Extractor

type Extractor struct {
	// contains filtered or unexported fields
}

Extractor handles file extraction from standard zstd-compressed OCI layers

func NewExtractor

func NewExtractor(layer v1.Layer) *Extractor

NewExtractor creates a new standard zstd layer extractor

func (*Extractor) ExtractFile

func (e *Extractor) ExtractFile(ctx context.Context, targetPath string, outputPath string) error

ExtractFile extracts a specific file from a zstd-compressed OCI layer This downloads and decompresses the entire layer using zstd

func (*Extractor) ListFiles

func (e *Extractor) ListFiles(ctx context.Context) ([]string, error)

ListFiles lists all files in a zstd-compressed OCI layer