Method FormatBinaryFragment

pkg/gitdiff/format.go:231–271

(f *BinaryFragment)

}

func (fm *formatter) FormatBinaryFragment(f *BinaryFragment) {
	const (
		maxBytesPerLine = 52
	)

	switch f.Method {
	case BinaryPatchDelta:
		fm.WriteString("delta ")
	case BinaryPatchLiteral:
		fm.WriteString("literal ")
	}
	fm.Write(strconv.AppendInt(nil, f.Size, 10))
	fm.WriteByte('\n')

	data := deflateBinaryChunk(f.Data)
	n := (len(data) / maxBytesPerLine) * maxBytesPerLine

	buf := make([]byte, base85Len(maxBytesPerLine))
	for i := 0; i < n; i += maxBytesPerLine {
		base85Encode(buf, data[i:i+maxBytesPerLine])
		fm.WriteByte('z')
		fm.Write(buf)
		fm.WriteByte('\n')
	}
	if remainder := len(data) - n; remainder > 0 {
		buf = buf[0:base85Len(remainder)]

		sizeChar := byte(remainder)
		if remainder <= 26 {
			sizeChar = 'A' + sizeChar - 1
		} else {
			sizeChar = 'a' + sizeChar - 27
		}

		base85Encode(buf, data[n:])
		fm.WriteByte(sizeChar)
		fm.Write(buf)
		fm.WriteByte('\n')
	}
	fm.WriteByte('\n')
}

func deflateBinaryChunk(data []byte) []byte {
	var b bytes.Buffer