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
|
// Copyright 2023 CUE Labs AG
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"bytes"
"context"
"fmt"
"io"
"net"
"net/http"
"os"
"os/signal"
"path/filepath"
"testing"
"time"
"cuelabs.dev/go/oci/ociregistry"
"cuelabs.dev/go/oci/ociregistry/ociclient"
"github.com/opencontainers/go-digest"
"github.com/rogpeppe/go-internal/testscript"
"github.com/rogpeppe/retry"
)
func init() {
writeNetAddr = writeNetAddrForTest
// Process the interrupt signal sent by testscript
// to ensure a clean exit.
sigc := make(chan os.Signal, 1)
signal.Notify(sigc, os.Interrupt)
go func() {
<-sigc
os.Exit(0)
}()
}
func TestMain(m *testing.M) {
os.Exit(testscript.RunMain(m, map[string]func() int{
"ocisrv": func() int {
main()
return 0
},
}))
}
func TestScript(t *testing.T) {
testscript.Run(t, testscript.Params{
Dir: "testdata",
Setup: func(env *testscript.Env) error {
env.Setenv("ADDR_FILE", filepath.Join(env.WorkDir, "listen-addr"))
return nil
},
Cmds: map[string]func(ts *testscript.TestScript, neg bool, args []string){
"pushblob": cmdPushBlob,
},
})
}
func cmdPushBlob(ts *testscript.TestScript, neg bool, args []string) {
if len(args) != 3 {
ts.Fatalf("usage: pushblob $repo $blobfile $digest")
}
repo, blobFile, dg := args[0], args[1], args[2]
data, err := os.ReadFile(ts.MkAbs(blobFile))
ts.Check(err)
r, err := connect(ts)
ts.Check(err)
if !neg && digest.FromBytes(data) != digest.Digest(dg) {
ts.Fatalf("blob digest mismatch")
}
_, err = r.PushBlob(context.Background(), repo, ociregistry.Descriptor{
Size: int64(len(data)),
Digest: digest.Digest(dg),
}, bytes.NewReader(data))
if neg {
if err == nil {
ts.Fatalf("unexpected success")
}
// TODO it would be nice if we could write the error to stderr
// so it could be checked by testscript commands.
ts.Logf("error: %v", err)
return
}
ts.Check(err)
}
func cmdGetBlob(ts *testscript.TestScript, neg bool, args []string) {
if len(args) != 2 {
ts.Fatalf("usage: getblob $repo $digest")
}
repo, dg := args[0], args[1]
r, err := connect(ts)
ts.Check(err)
rd, err := r.GetBlob(context.Background(), repo, digest.Digest(dg))
if neg {
if err == nil {
ts.Fatalf("unexpected success")
}
// TODO it would be nice if we could write the error to stderr
// so it could be checked by testscript commands.
ts.Logf("error: %v", err)
return
}
data, err := io.ReadAll(rd)
ts.Check(err)
_, err = ts.Stdout().Write(data)
ts.Check(err)
}
var waitStrategy = retry.Strategy{
Delay: time.Millisecond,
MaxDelay: 20 * time.Millisecond,
MaxDuration: 500 * time.Millisecond,
}
func connect(ts *testscript.TestScript) (ociregistry.Interface, error) {
addrFile := ts.Getenv("ADDR_FILE")
if addrFile == "" {
return nil, fmt.Errorf("$ADDR_FILE not set")
}
var addr string
for it := waitStrategy.Start(); ; {
data, err := os.ReadFile(addrFile)
if err == nil {
addr = string(data)
break
}
if !os.IsNotExist(err) {
return nil, fmt.Errorf("cannot read file: %v", err)
}
if !it.Next(nil) {
return nil, fmt.Errorf("timed out waiting for server")
}
}
resp, err := http.Get("http://" + addr + "/v2/")
if err != nil {
return nil, fmt.Errorf("cannot ping server: %v", err)
}
resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("unexpected ping status (%v)", resp.Status)
}
return ociclient.New(addr, &ociclient.Options{
Insecure: true,
})
}
func writeNetAddrForTest(l net.Listener) {
f := os.Getenv("ADDR_FILE")
if f == "" {
return
}
tmpf := f + ".tmp"
if err := os.WriteFile(tmpf, []byte(l.Addr().String()), 0o666); err != nil {
panic(err)
}
if err := os.Rename(tmpf, f); err != nil {
panic(err)
}
}
|
