1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
package reachability
import (
"fmt"
"codeberg.org/lindenii/furgit/errors"
objectcommit "codeberg.org/lindenii/furgit/object/commit"
objecttag "codeberg.org/lindenii/furgit/object/tag"
objecttype "codeberg.org/lindenii/furgit/object/type"
)
func (walk *Walk) expandCommits(item walkItem) ([]walkItem, error) {
if walk.reachability.graph != nil { //nolint:nestif
next, graphUsed, err := walk.expandCommitsFromGraph(item.id)
if err != nil {
return nil, err
}
if graphUsed && walk.strict {
err = walk.validateCommitObject(item.id)
if err != nil {
return nil, err
}
}
if graphUsed {
return next, nil
}
}
ty, err := walk.readHeaderType(item.id)
if err != nil {
return nil, err
}
switch ty {
case objecttype.TypeCommit:
content, err := walk.readBytesContent(item.id)
if err != nil {
return nil, err
}
commit, err := objectcommit.Parse(content, item.id.Algorithm())
if err != nil {
return nil, err
}
next := make([]walkItem, 0, len(commit.Parents))
for _, parent := range commit.Parents {
next = append(next, walkItem{id: parent, want: objecttype.TypeInvalid})
}
return next, nil
case objecttype.TypeTag:
content, err := walk.readBytesContent(item.id)
if err != nil {
return nil, err
}
tag, err := objecttag.Parse(content, item.id.Algorithm())
if err != nil {
return nil, err
}
return []walkItem{{id: tag.Target, want: objecttype.TypeInvalid}}, nil
case objecttype.TypeTree, objecttype.TypeBlob, objecttype.TypeInvalid,
objecttype.TypeFuture, objecttype.TypeOfsDelta, objecttype.TypeRefDelta:
return nil, &errors.ObjectTypeError{OID: item.id, Got: ty, Want: objecttype.TypeCommit}
}
return nil, fmt.Errorf("reachability: unreachable object type %d", ty)
}
|
