runxiyu.tngl.sh
Fast implementation of Git in pure Go
1package read
2
3import (
4 "iter"
5
6 "codeberg.org/lindenii/furgit/internal/intconv"
7 "codeberg.org/lindenii/furgit/objectid"
8)
9
10// AllPositions iterates all commit positions in native layer order.
11func (reader *Reader) AllPositions() iter.Seq[Position] {
12 return func(yield func(Position) bool) {
13 for layerIdx := range reader.layers {
14 layer := &reader.layers[layerIdx]
15
16 graph, err := intconv.IntToUint32(layerIdx)
17 if err != nil {
18 return
19 }
20
21 for idx := range layer.numCommits {
22 if !yield(Position{Graph: graph, Index: idx}) {
23 return
24 }
25 }
26 }
27 }
28}
29
30// AllOIDs iterates all commit object IDs in native layer order.
31func (reader *Reader) AllOIDs() iter.Seq[objectid.ObjectID] {
32 return func(yield func(objectid.ObjectID) bool) {
33 positions := reader.AllPositions()
34 for pos := range positions {
35 oid, err := reader.OIDAt(pos)
36 if err != nil {
37 return
38 }
39
40 if !yield(oid) {
41 return
42 }
43 }
44 }
45}