1 files changed, 0 insertions, 137 deletions
diff --git a/vendor/github.com/klauspost/compress/zstd/frameenc.go b/vendor/github.com/klauspost/compress/zstd/frameenc.go
deleted file mode 100644
index 667ca0679..000000000
--- a/vendor/github.com/klauspost/compress/zstd/frameenc.go
+++ /dev/null
@@ -1,137 +0,0 @@
-// Copyright 2019+ Klaus Post. All rights reserved.
-// License information can be found in the LICENSE file.
-// Based on work by Yann Collet, released under BSD License.
-
-package zstd
-
-import (
-	"encoding/binary"
-	"fmt"
-	"io"
-	"math"
-	"math/bits"
-)
-
-type frameHeader struct {
-	ContentSize   uint64
-	WindowSize    uint32
-	SingleSegment bool
-	Checksum      bool
-	DictID        uint32
-}
-
-const maxHeaderSize = 14
-
-func (f frameHeader) appendTo(dst []byte) []byte {
-	dst = append(dst, frameMagic...)
-	var fhd uint8
-	if f.Checksum {
-		fhd |= 1 << 2
-	}
-	if f.SingleSegment {
-		fhd |= 1 << 5
-	}
-
-	var dictIDContent []byte
-	if f.DictID > 0 {
-		var tmp [4]byte
-		if f.DictID < 256 {
-			fhd |= 1
-			tmp[0] = uint8(f.DictID)
-			dictIDContent = tmp[:1]
-		} else if f.DictID < 1<<16 {
-			fhd |= 2
-			binary.LittleEndian.PutUint16(tmp[:2], uint16(f.DictID))
-			dictIDContent = tmp[:2]
-		} else {
-			fhd |= 3
-			binary.LittleEndian.PutUint32(tmp[:4], f.DictID)
-			dictIDContent = tmp[:4]
-		}
-	}
-	var fcs uint8
-	if f.ContentSize >= 256 {
-		fcs++
-	}
-	if f.ContentSize >= 65536+256 {
-		fcs++
-	}
-	if f.ContentSize >= 0xffffffff {
-		fcs++
-	}
-
-	fhd |= fcs << 6
-
-	dst = append(dst, fhd)
-	if !f.SingleSegment {
-		const winLogMin = 10
-		windowLog := (bits.Len32(f.WindowSize-1) - winLogMin) << 3
-		dst = append(dst, uint8(windowLog))
-	}
-	if f.DictID > 0 {
-		dst = append(dst, dictIDContent...)
-	}
-	switch fcs {
-	case 0:
-		if f.SingleSegment {
-			dst = append(dst, uint8(f.ContentSize))
-		}
-		// Unless SingleSegment is set, framessizes < 256 are not stored.
-	case 1:
-		f.ContentSize -= 256
-		dst = append(dst, uint8(f.ContentSize), uint8(f.ContentSize>>8))
-	case 2:
-		dst = append(dst, uint8(f.ContentSize), uint8(f.ContentSize>>8), uint8(f.ContentSize>>16), uint8(f.ContentSize>>24))
-	case 3:
-		dst = append(dst, uint8(f.ContentSize), uint8(f.ContentSize>>8), uint8(f.ContentSize>>16), uint8(f.ContentSize>>24),
-			uint8(f.ContentSize>>32), uint8(f.ContentSize>>40), uint8(f.ContentSize>>48), uint8(f.ContentSize>>56))
-	default:
-		panic("invalid fcs")
-	}
-	return dst
-}
-
-const skippableFrameHeader = 4 + 4
-
-// calcSkippableFrame will return a total size to be added for written
-// to be divisible by multiple.
-// The value will always be > skippableFrameHeader.
-// The function will panic if written < 0 or wantMultiple <= 0.
-func calcSkippableFrame(written, wantMultiple int64) int {
-	if wantMultiple <= 0 {
-		panic("wantMultiple <= 0")
-	}
-	if written < 0 {
-		panic("written < 0")
-	}
-	leftOver := written % wantMultiple
-	if leftOver == 0 {
-		return 0
-	}
-	toAdd := wantMultiple - leftOver
-	for toAdd < skippableFrameHeader {
-		toAdd += wantMultiple
-	}
-	return int(toAdd)
-}
-
-// skippableFrame will add a skippable frame with a total size of bytes.
-// total should be >= skippableFrameHeader and < math.MaxUint32.
-func skippableFrame(dst []byte, total int, r io.Reader) ([]byte, error) {
-	if total == 0 {
-		return dst, nil
-	}
-	if total < skippableFrameHeader {
-		return dst, fmt.Errorf("requested skippable frame (%d) < 8", total)
-	}
-	if int64(total) > math.MaxUint32 {
-		return dst, fmt.Errorf("requested skippable frame (%d) > max uint32", total)
-	}
-	dst = append(dst, 0x50, 0x2a, 0x4d, 0x18)
-	f := uint32(total - skippableFrameHeader)
-	dst = append(dst, uint8(f), uint8(f>>8), uint8(f>>16), uint8(f>>24))
-	start := len(dst)
-	dst = append(dst, make([]byte, f)...)
-	_, err := io.ReadFull(r, dst[start:])
-	return dst, err
-}