fix(deps): update github.com/containers/storage digest to 79aa304

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

vendor/github.com/klauspost/compress/README.md

@@ -16,6 +16,14 @@ This package provides various compression algorithms.
 
 # changelog
 
+* Sept 19th, 2023 - [v1.17.0](https://github.com/klauspost/compress/releases/tag/v1.17.0)
+	* Add experimental dictionary builder  https://github.com/klauspost/compress/pull/853
+	* Add xerial snappy read/writer https://github.com/klauspost/compress/pull/838
+	* flate: Add limited window compression https://github.com/klauspost/compress/pull/843
+	* s2: Do 2 overlapping match checks https://github.com/klauspost/compress/pull/839
+	* flate: Add amd64 assembly matchlen https://github.com/klauspost/compress/pull/837
+	* gzip: Copy bufio.Reader on Reset by @thatguystone in https://github.com/klauspost/compress/pull/860
+   
 * July 1st, 2023 - [v1.16.7](https://github.com/klauspost/compress/releases/tag/v1.16.7)
 	* zstd: Fix default level first dictionary encode https://github.com/klauspost/compress/pull/829
 	* s2: add GetBufferCapacity() method by @GiedriusS in https://github.com/klauspost/compress/pull/832
@@ -646,6 +654,7 @@ Here are other packages of good quality and pure Go (no cgo wrappers or autoconv
 * [github.com/ronanh/intcomp](https://github.com/ronanh/intcomp) - Integer compression.
 * [github.com/spenczar/fpc](https://github.com/spenczar/fpc) - Float compression.
 * [github.com/minio/zipindex](https://github.com/minio/zipindex) - External ZIP directory index.
+* [github.com/ybirader/pzip](https://github.com/ybirader/pzip) - Fast concurrent zip archiver and extractor.
 
 # license
 

vendor/github.com/klauspost/compress/flate/inflate.go

@@ -120,8 +120,9 @@ func (h *huffmanDecoder) init(lengths []int) bool {
 	const sanity = false
 
 	if h.chunks == nil {
-		h.chunks = &[huffmanNumChunks]uint16{}
+		h.chunks = new([huffmanNumChunks]uint16)
 	}
+
 	if h.maxRead != 0 {
 		*h = huffmanDecoder{chunks: h.chunks, links: h.links}
 	}
@@ -175,6 +176,7 @@ func (h *huffmanDecoder) init(lengths []int) bool {
 	}
 
 	h.maxRead = min
+
 	chunks := h.chunks[:]
 	for i := range chunks {
 		chunks[i] = 0
@@ -202,8 +204,7 @@ func (h *huffmanDecoder) init(lengths []int) bool {
 			if cap(h.links[off]) < numLinks {
 				h.links[off] = make([]uint16, numLinks)
 			} else {
-				links := h.links[off][:0]
-				h.links[off] = links[:numLinks]
+				h.links[off] = h.links[off][:numLinks]
 			}
 		}
 	} else {
@@ -277,7 +278,7 @@ func (h *huffmanDecoder) init(lengths []int) bool {
 	return true
 }
 
-// The actual read interface needed by NewReader.
+// Reader is the actual read interface needed by NewReader.
 // If the passed in io.Reader does not also have ReadByte,
 // the NewReader will introduce its own buffering.
 type Reader interface {
@@ -285,6 +286,18 @@ type Reader interface {
 	io.ByteReader
 }
 
+type step uint8
+
+const (
+	copyData step = iota + 1
+	nextBlock
+	huffmanBytesBuffer
+	huffmanBytesReader
+	huffmanBufioReader
+	huffmanStringsReader
+	huffmanGenericReader
+)
+
 // Decompress state.
 type decompressor struct {
 	// Input source.
@@ -303,7 +316,7 @@ type decompressor struct {
 
 	// Next step in the decompression,
 	// and decompression state.
-	step      func(*decompressor)
+	step      step
 	stepState int
 	err       error
 	toRead    []byte
@@ -342,7 +355,7 @@ func (f *decompressor) nextBlock() {
 		// compressed, fixed Huffman tables
 		f.hl = &fixedHuffmanDecoder
 		f.hd = nil
-		f.huffmanBlockDecoder()()
+		f.huffmanBlockDecoder()
 		if debugDecode {
 			fmt.Println("predefinied huffman block")
 		}
@@ -353,7 +366,7 @@ func (f *decompressor) nextBlock() {
 		}
 		f.hl = &f.h1
 		f.hd = &f.h2
-		f.huffmanBlockDecoder()()
+		f.huffmanBlockDecoder()
 		if debugDecode {
 			fmt.Println("dynamic huffman block")
 		}
@@ -379,14 +392,16 @@ func (f *decompressor) Read(b []byte) (int, error) {
 		if f.err != nil {
 			return 0, f.err
 		}
-		f.step(f)
+
+		f.doStep()
+
 		if f.err != nil && len(f.toRead) == 0 {
 			f.toRead = f.dict.readFlush() // Flush what's left in case of error
 		}
 	}
 }
 
-// Support the io.WriteTo interface for io.Copy and friends.
+// WriteTo implements the io.WriteTo interface for io.Copy and friends.
 func (f *decompressor) WriteTo(w io.Writer) (int64, error) {
 	total := int64(0)
 	flushed := false
@@ -410,7 +425,7 @@ func (f *decompressor) WriteTo(w io.Writer) (int64, error) {
 			return total, f.err
 		}
 		if f.err == nil {
-			f.step(f)
+			f.doStep()
 		}
 		if len(f.toRead) == 0 && f.err != nil && !flushed {
 			f.toRead = f.dict.readFlush() // Flush what's left in case of error
@@ -631,7 +646,7 @@ func (f *decompressor) copyData() {
 
 	if f.dict.availWrite() == 0 || f.copyLen > 0 {
 		f.toRead = f.dict.readFlush()
-		f.step = (*decompressor).copyData
+		f.step = copyData
 		return
 	}
 	f.finishBlock()
@@ -644,7 +659,28 @@ func (f *decompressor) finishBlock() {
 		}
 		f.err = io.EOF
 	}
-	f.step = (*decompressor).nextBlock
+	f.step = nextBlock
+}
+
+func (f *decompressor) doStep() {
+	switch f.step {
+	case copyData:
+		f.copyData()
+	case nextBlock:
+		f.nextBlock()
+	case huffmanBytesBuffer:
+		f.huffmanBytesBuffer()
+	case huffmanBytesReader:
+		f.huffmanBytesReader()
+	case huffmanBufioReader:
+		f.huffmanBufioReader()
+	case huffmanStringsReader:
+		f.huffmanStringsReader()
+	case huffmanGenericReader:
+		f.huffmanGenericReader()
+	default:
+		panic("BUG: unexpected step state")
+	}
 }
 
 // noEOF returns err, unless err == io.EOF, in which case it returns io.ErrUnexpectedEOF.
@@ -747,7 +783,7 @@ func (f *decompressor) Reset(r io.Reader, dict []byte) error {
 		h1:       f.h1,
 		h2:       f.h2,
 		dict:     f.dict,
-		step:     (*decompressor).nextBlock,
+		step:     nextBlock,
 	}
 	f.dict.init(maxMatchOffset, dict)
 	return nil
@@ -768,7 +804,7 @@ func NewReader(r io.Reader) io.ReadCloser {
 	f.r = makeReader(r)
 	f.bits = new([maxNumLit + maxNumDist]int)
 	f.codebits = new([numCodes]int)
-	f.step = (*decompressor).nextBlock
+	f.step = nextBlock
 	f.dict.init(maxMatchOffset, nil)
 	return &f
 }
@@ -787,7 +823,7 @@ func NewReaderDict(r io.Reader, dict []byte) io.ReadCloser {
 	f.r = makeReader(r)
 	f.bits = new([maxNumLit + maxNumDist]int)
 	f.codebits = new([numCodes]int)
-	f.step = (*decompressor).nextBlock
+	f.step = nextBlock
 	f.dict.init(maxMatchOffset, dict)
 	return &f
 }

vendor/github.com/klauspost/compress/flate/inflate_gen.go

@@ -85,7 +85,7 @@ readLiteral:
 			dict.writeByte(byte(v))
 			if dict.availWrite() == 0 {
 				f.toRead = dict.readFlush()
-				f.step = (*decompressor).huffmanBytesBuffer
+				f.step = huffmanBytesBuffer
 				f.stepState = stateInit
 				f.b, f.nb = fb, fnb
 				return
@@ -251,7 +251,7 @@ copyHistory:
 
 		if dict.availWrite() == 0 || f.copyLen > 0 {
 			f.toRead = dict.readFlush()
-			f.step = (*decompressor).huffmanBytesBuffer // We need to continue this work
+			f.step = huffmanBytesBuffer // We need to continue this work
 			f.stepState = stateDict
 			f.b, f.nb = fb, fnb
 			return
@@ -336,7 +336,7 @@ readLiteral:
 			dict.writeByte(byte(v))
 			if dict.availWrite() == 0 {
 				f.toRead = dict.readFlush()
-				f.step = (*decompressor).huffmanBytesReader
+				f.step = huffmanBytesReader
 				f.stepState = stateInit
 				f.b, f.nb = fb, fnb
 				return
@@ -502,7 +502,7 @@ copyHistory:
 
 		if dict.availWrite() == 0 || f.copyLen > 0 {
 			f.toRead = dict.readFlush()
-			f.step = (*decompressor).huffmanBytesReader // We need to continue this work
+			f.step = huffmanBytesReader // We need to continue this work
 			f.stepState = stateDict
 			f.b, f.nb = fb, fnb
 			return
@@ -587,7 +587,7 @@ readLiteral:
 			dict.writeByte(byte(v))
 			if dict.availWrite() == 0 {
 				f.toRead = dict.readFlush()
-				f.step = (*decompressor).huffmanBufioReader
+				f.step = huffmanBufioReader
 				f.stepState = stateInit
 				f.b, f.nb = fb, fnb
 				return
@@ -753,7 +753,7 @@ copyHistory:
 
 		if dict.availWrite() == 0 || f.copyLen > 0 {
 			f.toRead = dict.readFlush()
-			f.step = (*decompressor).huffmanBufioReader // We need to continue this work
+			f.step = huffmanBufioReader // We need to continue this work
 			f.stepState = stateDict
 			f.b, f.nb = fb, fnb
 			return
@@ -838,7 +838,7 @@ readLiteral:
 			dict.writeByte(byte(v))
 			if dict.availWrite() == 0 {
 				f.toRead = dict.readFlush()
-				f.step = (*decompressor).huffmanStringsReader
+				f.step = huffmanStringsReader
 				f.stepState = stateInit
 				f.b, f.nb = fb, fnb
 				return
@@ -1004,7 +1004,7 @@ copyHistory:
 
 		if dict.availWrite() == 0 || f.copyLen > 0 {
 			f.toRead = dict.readFlush()
-			f.step = (*decompressor).huffmanStringsReader // We need to continue this work
+			f.step = huffmanStringsReader // We need to continue this work
 			f.stepState = stateDict
 			f.b, f.nb = fb, fnb
 			return
@@ -1089,7 +1089,7 @@ readLiteral:
 			dict.writeByte(byte(v))
 			if dict.availWrite() == 0 {
 				f.toRead = dict.readFlush()
-				f.step = (*decompressor).huffmanGenericReader
+				f.step = huffmanGenericReader
 				f.stepState = stateInit
 				f.b, f.nb = fb, fnb
 				return
@@ -1255,7 +1255,7 @@ copyHistory:
 
 		if dict.availWrite() == 0 || f.copyLen > 0 {
 			f.toRead = dict.readFlush()
-			f.step = (*decompressor).huffmanGenericReader // We need to continue this work
+			f.step = huffmanGenericReader // We need to continue this work
 			f.stepState = stateDict
 			f.b, f.nb = fb, fnb
 			return
@@ -1265,19 +1265,19 @@ copyHistory:
 	// Not reached
 }
 
-func (f *decompressor) huffmanBlockDecoder() func() {
+func (f *decompressor) huffmanBlockDecoder() {
 	switch f.r.(type) {
 	case *bytes.Buffer:
-		return f.huffmanBytesBuffer
+		f.huffmanBytesBuffer()
 	case *bytes.Reader:
-		return f.huffmanBytesReader
+		f.huffmanBytesReader()
 	case *bufio.Reader:
-		return f.huffmanBufioReader
+		f.huffmanBufioReader()
 	case *strings.Reader:
-		return f.huffmanStringsReader
+		f.huffmanStringsReader()
 	case Reader:
-		return f.huffmanGenericReader
+		f.huffmanGenericReader()
 	default:
-		return f.huffmanGenericReader
+		f.huffmanGenericReader()
 	}
 }