format/commitgraph: Split into ./read and ./ v0.1.60

1 files changed, 0 insertions, 65 deletions

diff --git a/format/commitgraph/parents.go b/format/commitgraph/parents.go
deleted file mode 100644
index df6d33ff..00000000
--- a/format/commitgraph/parents.go
+++ /dev/null
@@ -1,65 +0,0 @@
-package commitgraph
-
-// ParentRef references one parent position.
-type ParentRef struct {
-	Valid bool
-	Pos   Position
-}
-
-func (reader *Reader) decodeParents(layer *layer, p1, p2 uint32) (ParentRef, ParentRef, []Position, error) {
-	parent1, err := reader.decodeSingleParent(p1)
-	if err != nil {
-		return ParentRef{}, ParentRef{}, nil, err
-	}
-
-	if p2 == parentNone {
-		return parent1, ParentRef{}, nil, nil
-	}
-
-	if p2&parentExtraMask == 0 {
-		parent2, err := reader.decodeSingleParent(p2)
-		if err != nil {
-			return ParentRef{}, ParentRef{}, nil, err
-		}
-
-		return parent1, parent2, nil, nil
-	}
-
-	edgeStart := p2 & parentLastMask
-
-	parents, err := reader.decodeExtraEdgeList(layer, edgeStart)
-	if err != nil {
-		return ParentRef{}, ParentRef{}, nil, err
-	}
-
-	if len(parents) == 0 {
-		return ParentRef{}, ParentRef{}, nil, &ErrMalformed{Path: layer.path, Reason: "empty EDGE list"}
-	}
-
-	parent2 := ParentRef{Valid: true, Pos: parents[0]}
-	if len(parents) == 1 {
-		return parent1, parent2, nil, nil
-	}
-
-	return parent1, parent2, parents[1:], nil
-}
-
-func (reader *Reader) decodeSingleParent(raw uint32) (ParentRef, error) {
-	if raw == parentNone {
-		return ParentRef{}, nil
-	}
-
-	if raw&parentExtraMask != 0 {
-		return ParentRef{}, &ErrMalformed{
-			Path:   "commit-graph",
-			Reason: "unexpected EDGE marker in single-parent slot",
-		}
-	}
-
-	pos, err := reader.globalToPosition(raw)
-	if err != nil {
-		return ParentRef{}, err
-	}
-
-	return ParentRef{Valid: true, Pos: pos}, nil
-}