objectstore/packed: Split

1 files changed, 0 insertions, 85 deletions

diff --git a/objectstore/packed/idx_parse.go b/objectstore/packed/idx_parse.go
index 870ffdae..4da3bf42 100644
--- a/objectstore/packed/idx_parse.go
+++ b/objectstore/packed/idx_parse.go
@@ -1,11 +1,8 @@
 package packed
 
 import (
-	"bytes"
 	"encoding/binary"
 	"fmt"
-
-	"codeberg.org/lindenii/furgit/objectid"
 )
 
 const (
@@ -79,85 +76,3 @@ func (index *idxFile) parse() error {
 
 	return nil
 }
-
-// lookup resolves one object ID to its pack offset within this index.
-func (index *idxFile) lookup(id objectid.ObjectID) (uint64, bool, error) {
-	if id.Algorithm() != index.algo {
-		return 0, false, fmt.Errorf("objectstore/packed: object id algorithm mismatch")
-	}
-
-	idBytes := (&id).RawBytes()
-
-	hashSize := len(idBytes)
-	if hashSize != index.algo.Size() {
-		return 0, false, fmt.Errorf("objectstore/packed: unexpected object id length")
-	}
-
-	first := int(idBytes[0])
-
-	lo := 0
-	if first > 0 {
-		lo = int(index.fanout[first-1])
-	}
-
-	hi := int(index.fanout[first])
-	if lo < 0 || hi < 0 || lo > hi || hi > index.numObjects {
-		return 0, false, fmt.Errorf("objectstore/packed: idx %q has invalid fanout bounds", index.idxName)
-	}
-
-	for lo < hi {
-		mid := lo + (hi-lo)/2
-
-		nameOffset := index.namesOffset + mid*hashSize
-		if nameOffset < 0 || nameOffset+hashSize > len(index.data) {
-			return 0, false, fmt.Errorf("objectstore/packed: idx %q truncated name table", index.idxName)
-		}
-
-		cmp := bytes.Compare(index.data[nameOffset:nameOffset+hashSize], idBytes)
-		if cmp == 0 {
-			offset, err := index.offsetAt(mid)
-			if err != nil {
-				return 0, false, err
-			}
-
-			return offset, true, nil
-		}
-
-		if cmp < 0 {
-			lo = mid + 1
-		} else {
-			hi = mid
-		}
-	}
-
-	return 0, false, nil
-}
-
-// offsetAt resolves the pack offset for one object index entry.
-func (index *idxFile) offsetAt(objectIndex int) (uint64, error) {
-	if objectIndex < 0 || objectIndex >= index.numObjects {
-		return 0, fmt.Errorf("objectstore/packed: idx %q offset index out of bounds", index.idxName)
-	}
-
-	wordOffset := index.offset32Offset + objectIndex*4
-	if wordOffset < 0 || wordOffset+4 > len(index.data) {
-		return 0, fmt.Errorf("objectstore/packed: idx %q truncated 32-bit offset table", index.idxName)
-	}
-
-	word := binary.BigEndian.Uint32(index.data[wordOffset : wordOffset+4])
-	if word&0x80000000 == 0 {
-		return uint64(word), nil
-	}
-
-	pos := int(word & 0x7fffffff)
-	if pos < 0 || pos >= index.offset64Count {
-		return 0, fmt.Errorf("objectstore/packed: idx %q invalid 64-bit offset position", index.idxName)
-	}
-
-	offOffset := index.offset64Offset + pos*8
-	if offOffset < 0 || offOffset+8 > len(index.data)-2*index.algo.Size() {
-		return 0, fmt.Errorf("objectstore/packed: idx %q truncated 64-bit offset table", index.idxName)
-	}
-
-	return binary.BigEndian.Uint64(index.data[offOffset : offOffset+8]), nil
-}