1 files changed, 0 insertions, 78 deletions
diff --git a/pkg/btrfs/btrfssum/csum.go b/pkg/btrfs/btrfssum/csum.go
deleted file mode 100644
index 22d8149..0000000
--- a/pkg/btrfs/btrfssum/csum.go
+++ /dev/null
@@ -1,78 +0,0 @@
-package btrfssum
-
-import (
-	"encoding/binary"
-	"encoding/hex"
-	"fmt"
-	"hash/crc32"
-
-	"lukeshu.com/btrfs-tools/pkg/util"
-)
-
-type CSum [0x20]byte
-
-func (csum CSum) String() string {
-	return hex.EncodeToString(csum[:])
-}
-
-func (csum CSum) Fmt(typ CSumType) string {
-	return hex.EncodeToString(csum[:typ.Size()])
-}
-
-func (csum CSum) Format(f fmt.State, verb rune) {
-	util.FormatByteArrayStringer(csum, csum[:], f, verb)
-}
-
-type CSumType uint16
-
-const (
-	TYPE_CRC32 = CSumType(iota)
-	TYPE_XXHASH
-	TYPE_SHA256
-	TYPE_BLAKE2
-)
-
-func (typ CSumType) String() string {
-	names := map[CSumType]string{
-		TYPE_CRC32:  "crc32c",
-		TYPE_XXHASH: "xxhash64",
-		TYPE_SHA256: "sha256",
-		TYPE_BLAKE2: "blake2",
-	}
-	if name, ok := names[typ]; ok {
-		return name
-	}
-	return fmt.Sprintf("%d", typ)
-}
-
-func (typ CSumType) Size() int {
-	sizes := map[CSumType]int{
-		TYPE_CRC32:  4,
-		TYPE_XXHASH: 8,
-		TYPE_SHA256: 32,
-		TYPE_BLAKE2: 32,
-	}
-	if size, ok := sizes[typ]; ok {
-		return size
-	}
-	return len(CSum{})
-}
-
-func (typ CSumType) Sum(data []byte) (CSum, error) {
-	switch typ {
-	case TYPE_CRC32:
-		crc := crc32.Update(0, crc32.MakeTable(crc32.Castagnoli), data)
-
-		var ret CSum
-		binary.LittleEndian.PutUint32(ret[:], crc)
-		return ret, nil
-	case TYPE_XXHASH:
-		panic("not implemented")
-	case TYPE_SHA256:
-		panic("not implemented")
-	case TYPE_BLAKE2:
-		panic("not implemented")
-	default:
-		return CSum{}, fmt.Errorf("unknown checksum type: %v", typ)
-	}
-}