Fast implementation of Git in pure Go
codeberg.org/lindenii/furgit
git
go
repository: Add commit-graph
+56
-3
+7
repository/close.go
+7
repository/close.go
+37
repository/commit_graph.go
+37
repository/commit_graph.go
···
1
+
package repository
2
+
3
+
import (
4
+
"errors"
5
+
"os"
6
+
7
+
commitgraphread "codeberg.org/lindenii/furgit/format/commitgraph/read"
8
+
objectid "codeberg.org/lindenii/furgit/object/id"
9
+
)
10
+
11
+
func openCommitGraph(root *os.Root, algo objectid.Algorithm) (*commitgraphread.Reader, error) {
12
+
reader, err := commitgraphread.Open(root, algo, commitgraphread.OpenChain)
13
+
if err == nil {
14
+
return reader, nil
15
+
}
16
+
17
+
var malformed *commitgraphread.MalformedError
18
+
if errors.As(err, &malformed) &&
19
+
malformed.Path == "info/commit-graphs/commit-graph-chain" &&
20
+
malformed.Reason == "missing commit-graph-chain" {
21
+
reader, err = commitgraphread.Open(root, algo, commitgraphread.OpenSingle)
22
+
if errors.Is(err, os.ErrNotExist) {
23
+
return nil, nil
24
+
}
25
+
26
+
return reader, err
27
+
}
28
+
29
+
return nil, err
30
+
}
31
+
32
+
// CommitGraph returns the configured commit-graph reader, if available.
33
+
//
34
+
// Labels: Life-Parent, Close-No.
35
+
func (repo *Repository) CommitGraph() *commitgraphread.Reader {
36
+
return repo.commitGraph
37
+
}
+7
repository/open.go
+7
repository/open.go
···
44
44
repo.objectsLoose = objectsLoose
45
45
repo.objectsPacked = objectsPacked
46
46
47
+
commitGraph, err := openCommitGraph(objectsRoot, algo)
48
+
if err != nil {
49
+
return nil, err
50
+
}
51
+
52
+
repo.commitGraph = commitGraph
53
+
47
54
refRoot, err := root.OpenRoot(".")
48
55
if err != nil {
49
56
return nil, fmt.Errorf("repository: open root for refs: %w", err)
+5
-3
repository/repository.go
+5
-3
repository/repository.go
···
5
5
"os"
6
6
7
7
"codeberg.org/lindenii/furgit/config"
8
+
commitgraphread "codeberg.org/lindenii/furgit/format/commitgraph/read"
8
9
objectid "codeberg.org/lindenii/furgit/object/id"
9
10
objectstore "codeberg.org/lindenii/furgit/object/store"
10
11
objectloose "codeberg.org/lindenii/furgit/object/store/loose"
···
18
19
// Open expects a root for the Git directory itself:
19
20
// a bare repository root or a non-bare ".git" directory.
20
21
//
21
-
// Accessors such as [Repository.Objects], [Repository.Refs],
22
-
// [Repository.Fetcher], and [Repository.LooseStoreForWriting] return
23
-
// repository-backed views.
22
+
// Accessors such as [Repository.Objects], [Repository.CommitGraph],
23
+
// [Repository.Refs], [Repository.Fetcher], and
24
+
// [Repository.LooseStoreForWriting] return repository-backed views.
24
25
//
25
26
// Labels: MT-Safe, Close-Caller.
26
27
type Repository struct {
···
32
33
objectsPackRoot *os.Root
33
34
objectsLoose *objectloose.Store
34
35
objectsPacked *objectpacked.Store
36
+
commitGraph *commitgraphread.Reader
35
37
refRoot *os.Root
36
38
refs refstore.ReadWriteStore
37
39
}