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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
package repository
import (
"context"
"encoding/json"
"fmt"
"io"
"os"
"os/exec"
"path/filepath"
"strings"
"gitlab.com/gitlab-org/gitaly/internal/command"
"gitlab.com/gitlab-org/gitaly/internal/git"
"gitlab.com/gitlab-org/gitaly/internal/gitaly/service/commit"
"gitlab.com/gitlab-org/gitaly/internal/helper"
"gitlab.com/gitlab-org/gitaly/internal/log"
"gitlab.com/gitlab-org/gitaly/internal/storage"
"gitlab.com/gitlab-org/gitaly/proto/go/gitalypb"
"gitlab.com/gitlab-org/gitaly/streamio"
"gitlab.com/gitlab-org/labkit/correlation"
)
type archiveParams struct {
ctx context.Context
writer io.Writer
in *gitalypb.GetArchiveRequest
compressCmd *exec.Cmd
format string
archivePath string
exclude []string
internalCfg []byte
tlsCfg []byte
binDir string
loggingDir string
}
func (s *server) GetArchive(in *gitalypb.GetArchiveRequest, stream gitalypb.RepositoryService_GetArchiveServer) error {
ctx := stream.Context()
compressCmd, format := parseArchiveFormat(in.GetFormat())
repo := s.localrepo(in.GetRepository())
repoRoot, err := repo.Path()
if err != nil {
return err
}
path, err := storage.ValidateRelativePath(repoRoot, string(in.GetPath()))
if err != nil {
return helper.ErrInvalidArgument(err)
}
exclude := make([]string, len(in.GetExclude()))
for i, ex := range in.GetExclude() {
exclude[i], err = storage.ValidateRelativePath(repoRoot, string(ex))
if err != nil {
return helper.ErrInvalidArgument(err)
}
}
if err := validateGetArchiveRequest(in, format, path); err != nil {
return err
}
if err := s.validateGetArchivePrecondition(ctx, repo, in.GetCommitId(), path, exclude); err != nil {
return err
}
if in.GetElidePath() {
// `git archive <commit ID>:<path>` expects exclusions to be relative to path
pathSlash := path + string(os.PathSeparator)
for i := range exclude {
if !strings.HasPrefix(exclude[i], pathSlash) {
return helper.ErrInvalidArgumentf("invalid exclude: %q is not a subdirectory of %q", exclude[i], path)
}
exclude[i] = exclude[i][len(pathSlash):]
}
}
writer := streamio.NewWriter(func(p []byte) error {
return stream.Send(&gitalypb.GetArchiveResponse{Data: p})
})
gitlabConfig, err := json.Marshal(s.cfg.Gitlab)
if err != nil {
return err
}
tlsCfg, err := json.Marshal(s.cfg.TLS)
if err != nil {
return err
}
return s.handleArchive(archiveParams{
ctx: ctx,
writer: writer,
in: in,
compressCmd: compressCmd,
format: format,
archivePath: path,
exclude: exclude,
internalCfg: gitlabConfig,
tlsCfg: tlsCfg,
binDir: s.binDir,
loggingDir: s.loggingCfg.Dir,
})
}
func parseArchiveFormat(format gitalypb.GetArchiveRequest_Format) (*exec.Cmd, string) {
switch format {
case gitalypb.GetArchiveRequest_TAR:
return nil, "tar"
case gitalypb.GetArchiveRequest_TAR_GZ:
return exec.Command("gzip", "-c", "-n"), "tar"
case gitalypb.GetArchiveRequest_TAR_BZ2:
return exec.Command("bzip2", "-c"), "tar"
case gitalypb.GetArchiveRequest_ZIP:
return nil, "zip"
}
return nil, ""
}
func validateGetArchiveRequest(in *gitalypb.GetArchiveRequest, format string, path string) error {
if err := git.ValidateRevision([]byte(in.GetCommitId())); err != nil {
return helper.ErrInvalidArgumentf("invalid commitId: %v", err)
}
if len(format) == 0 {
return helper.ErrInvalidArgumentf("invalid format")
}
return nil
}
func (s *server) validateGetArchivePrecondition(
ctx context.Context,
repo git.RepositoryExecutor,
commitID string,
path string,
exclude []string,
) error {
c, err := s.catfileCache.BatchProcess(ctx, repo)
if err != nil {
return err
}
f := commit.NewTreeEntryFinder(c)
if path != "." {
if ok, err := findGetArchivePath(ctx, f, commitID, path); err != nil {
return err
} else if !ok {
return helper.ErrPreconditionFailedf("path doesn't exist")
}
}
for i, exclude := range exclude {
if ok, err := findGetArchivePath(ctx, f, commitID, exclude); err != nil {
return err
} else if !ok {
return helper.ErrPreconditionFailedf("exclude[%d] doesn't exist", i)
}
}
return nil
}
func findGetArchivePath(ctx context.Context, f *commit.TreeEntryFinder, commitID, path string) (ok bool, err error) {
treeEntry, err := f.FindByRevisionAndPath(ctx, commitID, path)
if err != nil {
return false, err
}
if treeEntry == nil || len(treeEntry.Oid) == 0 {
return false, nil
}
return true, nil
}
func (s *server) handleArchive(p archiveParams) error {
var args []string
pathspecs := make([]string, 0, len(p.exclude)+1)
if !p.in.GetElidePath() {
// git archive [options] <commit ID> -- <path> [exclude*]
args = []string{p.in.GetCommitId()}
pathspecs = append(pathspecs, p.archivePath)
} else if p.archivePath != "." {
// git archive [options] <commit ID>:<path> -- [exclude*]
args = []string{p.in.GetCommitId() + ":" + p.archivePath}
} else {
// git archive [options] <commit ID> -- [exclude*]
args = []string{p.in.GetCommitId()}
}
for _, exclude := range p.exclude {
pathspecs = append(pathspecs, ":(exclude)"+exclude)
}
env := []string{
fmt.Sprintf("GL_REPOSITORY=%s", p.in.GetRepository().GetGlRepository()),
fmt.Sprintf("GL_PROJECT_PATH=%s", p.in.GetRepository().GetGlProjectPath()),
fmt.Sprintf("GL_INTERNAL_CONFIG=%s", p.internalCfg),
fmt.Sprintf("GITALY_TLS=%s", p.tlsCfg),
fmt.Sprintf("CORRELATION_ID=%s", correlation.ExtractFromContext(p.ctx)),
fmt.Sprintf("%s=%s", log.GitalyLogDirEnvKey, p.loggingDir),
}
var config []git.ConfigPair
if p.in.GetIncludeLfsBlobs() {
binary := filepath.Join(p.binDir, "gitaly-lfs-smudge")
config = append(config, git.ConfigPair{Key: "filter.lfs.smudge", Value: binary})
}
archiveCommand, err := s.gitCmdFactory.New(p.ctx, p.in.GetRepository(), git.SubCmd{
Name: "archive",
Flags: []git.Option{git.ValueFlag{"--format", p.format}, git.ValueFlag{"--prefix", p.in.GetPrefix() + "/"}},
Args: args,
PostSepArgs: pathspecs,
}, git.WithEnv(env...), git.WithConfig(config...))
if err != nil {
return err
}
if p.compressCmd != nil {
command, err := command.New(p.ctx, p.compressCmd, archiveCommand, p.writer, nil)
if err != nil {
return err
}
if err := command.Wait(); err != nil {
return err
}
} else if _, err = io.Copy(p.writer, archiveCommand); err != nil {
return err
}
return archiveCommand.Wait()
}
|