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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
//go:build static && system_libgit2
package main
import (
"context"
"encoding/gob"
"flag"
"fmt"
"time"
git "github.com/libgit2/git2go/v34"
"gitlab.com/gitlab-org/gitaly/v16/cmd/gitaly-git2go/git2goutil"
"gitlab.com/gitlab-org/gitaly/v16/internal/git2go"
)
type submoduleSubcommand struct{}
func (cmd *submoduleSubcommand) Flags() *flag.FlagSet {
return flag.NewFlagSet("submodule", flag.ExitOnError)
}
func (cmd *submoduleSubcommand) Run(_ context.Context, decoder *gob.Decoder, encoder *gob.Encoder) error {
var request git2go.SubmoduleCommand
if err := decoder.Decode(&request); err != nil {
return fmt.Errorf("deserializing submodule command request: %w", err)
}
res, err := cmd.run(request)
if err != nil {
return err
}
return encoder.Encode(res)
}
func (cmd *submoduleSubcommand) run(request git2go.SubmoduleCommand) (*git2go.SubmoduleResult, error) {
if request.AuthorDate.IsZero() {
request.AuthorDate = time.Now()
}
smCommitOID, err := git.NewOid(request.CommitSHA)
if err != nil {
return nil, fmt.Errorf("converting %s to OID: %w", request.CommitSHA, err)
}
repo, err := git2goutil.OpenRepository(request.Repository)
if err != nil {
return nil, fmt.Errorf("open repository: %w", err)
}
fullBranchRefName := "refs/heads/" + request.Branch
o, err := repo.RevparseSingle(fullBranchRefName)
if err != nil {
return nil, fmt.Errorf("%s: %w", git2go.LegacyErrPrefixInvalidBranch, err)
}
startCommit, err := o.AsCommit()
if err != nil {
return nil, fmt.Errorf("peeling %s as a commit: %w", o.Id(), err)
}
rootTree, err := startCommit.Tree()
if err != nil {
return nil, fmt.Errorf("root tree from starting commit: %w", err)
}
index, err := git.NewIndex()
if err != nil {
return nil, fmt.Errorf("creating new index: %w", err)
}
if err := index.ReadTree(rootTree); err != nil {
return nil, fmt.Errorf("reading root tree into index: %w", err)
}
smEntry, err := index.EntryByPath(request.Submodule, 0)
if err != nil {
return nil, fmt.Errorf(
"%s: %w",
git2go.LegacyErrPrefixInvalidSubmodulePath, err,
)
}
if smEntry.Id.Cmp(smCommitOID) == 0 {
//nolint
return nil, fmt.Errorf(
"The submodule %s is already at %s",
request.Submodule, request.CommitSHA,
)
}
if smEntry.Mode != git.FilemodeCommit {
return nil, fmt.Errorf(
"%s: %w",
git2go.LegacyErrPrefixInvalidSubmodulePath, err,
)
}
newEntry := *smEntry // copy by value
newEntry.Id = smCommitOID // assign new commit SHA
if err := index.Add(&newEntry); err != nil {
return nil, fmt.Errorf("add new submodule entry to index: %w", err)
}
newRootTreeOID, err := index.WriteTreeTo(repo)
if err != nil {
return nil, fmt.Errorf("write index to repo: %w", err)
}
newTree, err := repo.LookupTree(newRootTreeOID)
if err != nil {
return nil, fmt.Errorf("looking up new submodule entry root tree: %w", err)
}
committer := git.Signature(
git2go.NewSignature(
request.AuthorName,
request.AuthorMail,
request.AuthorDate,
),
)
newCommitOID, err := git2goutil.NewCommitSubmitter(repo, request.SigningKey).
Commit(
&committer,
&committer,
git.MessageEncodingUTF8,
request.Message,
newTree,
startCommit,
)
if err != nil {
return nil, fmt.Errorf(
"%s: %w",
git2go.LegacyErrPrefixFailedCommit, err,
)
}
return &git2go.SubmoduleResult{
CommitID: newCommitOID.String(),
}, nil
}
|
