runxiyu.tngl.sh
Fast implementation of Git in pure Go
1package commitquery
2
3import "fmt"
4
5// populateNode fills one node's metadata and resolves its parents.
6func (query *Query) populateNode(idx nodeIndex, commit commitData) error {
7 if query.nodes[idx].loaded {
8 if query.nodes[idx].id != commit.ID {
9 return fmt.Errorf("commitquery: node identity mismatch: have %s, got %s", query.nodes[idx].id, commit.ID)
10 }
11
12 return nil
13 }
14
15 query.nodes[idx].id = commit.ID
16 query.nodes[idx].commitTime = commit.CommitTime
17 query.nodes[idx].generation = commit.Generation
18 query.nodes[idx].hasGeneration = commit.HasGeneration
19
20 if commit.HasGraphPos {
21 query.nodes[idx].graphPos = commit.GraphPos
22 query.nodes[idx].hasGraphPos = true
23 query.byGraphPos[commit.GraphPos] = idx
24 }
25
26 query.nodes[idx].loaded = true
27 query.nodes[idx].parents = query.nodes[idx].parents[:0]
28
29 for _, parent := range commit.Parents {
30 parentIdx, err := query.resolveParent(parent)
31 if err != nil {
32 query.nodes[idx].loaded = false
33 query.nodes[idx].parents = nil
34
35 return err
36 }
37
38 query.nodes[idx].parents = append(query.nodes[idx].parents, parentIdx)
39 }
40
41 return nil
42}