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	Vendor Update Go Libs (#13166)
* update github.com/alecthomas/chroma v0.8.0 -> v0.8.1 * github.com/blevesearch/bleve v1.0.10 -> v1.0.12 * editorconfig-core-go v2.1.1 -> v2.3.7 * github.com/gliderlabs/ssh v0.2.2 -> v0.3.1 * migrate editorconfig.ParseBytes to Parse * github.com/shurcooL/vfsgen to 0d455de96546 * github.com/go-git/go-git/v5 v5.1.0 -> v5.2.0 * github.com/google/uuid v1.1.1 -> v1.1.2 * github.com/huandu/xstrings v1.3.0 -> v1.3.2 * github.com/klauspost/compress v1.10.11 -> v1.11.1 * github.com/markbates/goth v1.61.2 -> v1.65.0 * github.com/mattn/go-sqlite3 v1.14.0 -> v1.14.4 * github.com/mholt/archiver v3.3.0 -> v3.3.2 * github.com/microcosm-cc/bluemonday 4f7140c49acb -> v1.0.4 * github.com/minio/minio-go v7.0.4 -> v7.0.5 * github.com/olivere/elastic v7.0.9 -> v7.0.20 * github.com/urfave/cli v1.20.0 -> v1.22.4 * github.com/prometheus/client_golang v1.1.0 -> v1.8.0 * github.com/xanzy/go-gitlab v0.37.0 -> v0.38.1 * mvdan.cc/xurls v2.1.0 -> v2.2.0 Co-authored-by: Lauris BH <lauris@nix.lv>
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								vendor/github.com/klauspost/compress/zstd/enc_base.go
									
									
									
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								vendor/github.com/klauspost/compress/zstd/enc_base.go
									
									
									
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							| @@ -0,0 +1,155 @@ | ||||
| package zstd | ||||
|  | ||||
| import ( | ||||
| 	"fmt" | ||||
| 	"math/bits" | ||||
|  | ||||
| 	"github.com/klauspost/compress/zstd/internal/xxhash" | ||||
| ) | ||||
|  | ||||
| type fastBase struct { | ||||
| 	// cur is the offset at the start of hist | ||||
| 	cur int32 | ||||
| 	// maximum offset. Should be at least 2x block size. | ||||
| 	maxMatchOff int32 | ||||
| 	hist        []byte | ||||
| 	crc         *xxhash.Digest | ||||
| 	tmp         [8]byte | ||||
| 	blk         *blockEnc | ||||
| 	lastDictID  uint32 | ||||
| } | ||||
|  | ||||
| // CRC returns the underlying CRC writer. | ||||
| func (e *fastBase) CRC() *xxhash.Digest { | ||||
| 	return e.crc | ||||
| } | ||||
|  | ||||
| // AppendCRC will append the CRC to the destination slice and return it. | ||||
| func (e *fastBase) AppendCRC(dst []byte) []byte { | ||||
| 	crc := e.crc.Sum(e.tmp[:0]) | ||||
| 	dst = append(dst, crc[7], crc[6], crc[5], crc[4]) | ||||
| 	return dst | ||||
| } | ||||
|  | ||||
| // WindowSize returns the window size of the encoder, | ||||
| // or a window size small enough to contain the input size, if > 0. | ||||
| func (e *fastBase) WindowSize(size int) int32 { | ||||
| 	if size > 0 && size < int(e.maxMatchOff) { | ||||
| 		b := int32(1) << uint(bits.Len(uint(size))) | ||||
| 		// Keep minimum window. | ||||
| 		if b < 1024 { | ||||
| 			b = 1024 | ||||
| 		} | ||||
| 		return b | ||||
| 	} | ||||
| 	return e.maxMatchOff | ||||
| } | ||||
|  | ||||
| // Block returns the current block. | ||||
| func (e *fastBase) Block() *blockEnc { | ||||
| 	return e.blk | ||||
| } | ||||
|  | ||||
| func (e *fastBase) addBlock(src []byte) int32 { | ||||
| 	if debugAsserts && e.cur > bufferReset { | ||||
| 		panic(fmt.Sprintf("ecur (%d) > buffer reset (%d)", e.cur, bufferReset)) | ||||
| 	} | ||||
| 	// check if we have space already | ||||
| 	if len(e.hist)+len(src) > cap(e.hist) { | ||||
| 		if cap(e.hist) == 0 { | ||||
| 			l := e.maxMatchOff * 2 | ||||
| 			// Make it at least 1MB. | ||||
| 			if l < 1<<20 { | ||||
| 				l = 1 << 20 | ||||
| 			} | ||||
| 			e.hist = make([]byte, 0, l) | ||||
| 		} else { | ||||
| 			if cap(e.hist) < int(e.maxMatchOff*2) { | ||||
| 				panic("unexpected buffer size") | ||||
| 			} | ||||
| 			// Move down | ||||
| 			offset := int32(len(e.hist)) - e.maxMatchOff | ||||
| 			copy(e.hist[0:e.maxMatchOff], e.hist[offset:]) | ||||
| 			e.cur += offset | ||||
| 			e.hist = e.hist[:e.maxMatchOff] | ||||
| 		} | ||||
| 	} | ||||
| 	s := int32(len(e.hist)) | ||||
| 	e.hist = append(e.hist, src...) | ||||
| 	return s | ||||
| } | ||||
|  | ||||
| // useBlock will replace the block with the provided one, | ||||
| // but transfer recent offsets from the previous. | ||||
| func (e *fastBase) UseBlock(enc *blockEnc) { | ||||
| 	enc.reset(e.blk) | ||||
| 	e.blk = enc | ||||
| } | ||||
|  | ||||
| func (e *fastBase) matchlenNoHist(s, t int32, src []byte) int32 { | ||||
| 	// Extend the match to be as long as possible. | ||||
| 	return int32(matchLen(src[s:], src[t:])) | ||||
| } | ||||
|  | ||||
| func (e *fastBase) matchlen(s, t int32, src []byte) int32 { | ||||
| 	if debugAsserts { | ||||
| 		if s < 0 { | ||||
| 			err := fmt.Sprintf("s (%d) < 0", s) | ||||
| 			panic(err) | ||||
| 		} | ||||
| 		if t < 0 { | ||||
| 			err := fmt.Sprintf("s (%d) < 0", s) | ||||
| 			panic(err) | ||||
| 		} | ||||
| 		if s-t > e.maxMatchOff { | ||||
| 			err := fmt.Sprintf("s (%d) - t (%d) > maxMatchOff (%d)", s, t, e.maxMatchOff) | ||||
| 			panic(err) | ||||
| 		} | ||||
| 		if len(src)-int(s) > maxCompressedBlockSize { | ||||
| 			panic(fmt.Sprintf("len(src)-s (%d) > maxCompressedBlockSize (%d)", len(src)-int(s), maxCompressedBlockSize)) | ||||
| 		} | ||||
| 	} | ||||
|  | ||||
| 	// Extend the match to be as long as possible. | ||||
| 	return int32(matchLen(src[s:], src[t:])) | ||||
| } | ||||
|  | ||||
| // Reset the encoding table. | ||||
| func (e *fastBase) resetBase(d *dict, singleBlock bool) { | ||||
| 	if e.blk == nil { | ||||
| 		e.blk = &blockEnc{} | ||||
| 		e.blk.init() | ||||
| 	} else { | ||||
| 		e.blk.reset(nil) | ||||
| 	} | ||||
| 	e.blk.initNewEncode() | ||||
| 	if e.crc == nil { | ||||
| 		e.crc = xxhash.New() | ||||
| 	} else { | ||||
| 		e.crc.Reset() | ||||
| 	} | ||||
| 	if (!singleBlock || d.DictContentSize() > 0) && cap(e.hist) < int(e.maxMatchOff*2)+d.DictContentSize() { | ||||
| 		l := e.maxMatchOff*2 + int32(d.DictContentSize()) | ||||
| 		// Make it at least 1MB. | ||||
| 		if l < 1<<20 { | ||||
| 			l = 1 << 20 | ||||
| 		} | ||||
| 		e.hist = make([]byte, 0, l) | ||||
| 	} | ||||
| 	// We offset current position so everything will be out of reach. | ||||
| 	// If above reset line, history will be purged. | ||||
| 	if e.cur < bufferReset { | ||||
| 		e.cur += e.maxMatchOff + int32(len(e.hist)) | ||||
| 	} | ||||
| 	e.hist = e.hist[:0] | ||||
| 	if d != nil { | ||||
| 		// Set offsets (currently not used) | ||||
| 		for i, off := range d.offsets { | ||||
| 			e.blk.recentOffsets[i] = uint32(off) | ||||
| 			e.blk.prevRecentOffsets[i] = e.blk.recentOffsets[i] | ||||
| 		} | ||||
| 		// Transfer litenc. | ||||
| 		e.blk.dictLitEnc = d.litEnc | ||||
| 		e.hist = append(e.hist, d.content...) | ||||
| 	} | ||||
| } | ||||
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