/
test_helpers.go
277 lines (234 loc) · 6.83 KB
/
test_helpers.go
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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
package cutlass
import (
"archive/zip"
"bytes"
"fmt"
"io"
"io/ioutil"
"log"
"math/rand"
"os"
"path/filepath"
"strings"
"time"
"github.com/cloudfoundry/libbuildpack"
"github.com/cloudfoundry/libbuildpack/cutlass/glow"
"github.com/cloudfoundry/libbuildpack/packager"
"github.com/paketo-buildpacks/packit/pexec"
"gopkg.in/yaml.v2"
)
type VersionedBuildpackPackage struct {
Version string
File string
}
var manifest struct {
Language string `yaml:"language"`
}
func FindRoot() (string, error) {
dir, err := filepath.Abs(".")
if err != nil {
return "", err
}
for {
if dir == "/" {
return "", fmt.Errorf("Could not find VERSION in the directory hierarchy")
}
if exist, err := libbuildpack.FileExists(filepath.Join(dir, "VERSION")); err != nil {
return "", err
} else if exist {
return dir, nil
}
dir, err = filepath.Abs(filepath.Join(dir, ".."))
if err != nil {
return "", err
}
}
}
func PackageUniquelyVersionedBuildpackExtra(name, version, stack string, cached, stackAssociationSupported bool) (VersionedBuildpackPackage, error) {
bpDir, err := FindRoot()
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to find root: %v", err)
}
var file string
if os.Getenv("BUILDPACK_FILE") == "" {
if compileExtension, err := isCompileExtensionBuildpack(bpDir); err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to decide if this is a compile extension buildpack: %v", err)
} else if compileExtension {
file, err = packager.CompileExtensionPackage(bpDir, version, cached, stack)
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to package as a compile extension buildpack: %v", err)
}
} else {
file, err = packager.Package(bpDir, packager.CacheDir, version, stack, cached)
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to package buildpack: %v", err)
}
}
} else {
file = os.Getenv("BUILDPACK_FILE")
version, err = readVersionFromZip(file)
if err != nil {
return VersionedBuildpackPackage{}, err
}
}
if !stackAssociationSupported {
stack = ""
}
err = CreateOrUpdateBuildpack(name, file, stack)
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to create or update buildpack: %v", err)
}
return VersionedBuildpackPackage{
Version: version,
File: file,
}, nil
}
func isCompileExtensionBuildpack(bpDir string) (bool, error) {
var manifest struct {
IncludeFiles []string `yaml:"include_files"`
}
if err := libbuildpack.NewYAML().Load(filepath.Join(bpDir, "manifest.yml"), &manifest); err != nil {
return false, err
}
return len(manifest.IncludeFiles) == 0, nil
}
func PackageUniquelyVersionedBuildpack(stack string, stackAssociationSupported bool) (VersionedBuildpackPackage, error) {
bpDir, err := FindRoot()
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to find root: %v", err)
}
data, err := ioutil.ReadFile(filepath.Join(bpDir, "VERSION"))
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to read VERSION file: %v", err)
}
buildpackVersion := strings.TrimSpace(string(data))
buildpackVersion = fmt.Sprintf("%s.%s", buildpackVersion, time.Now().Format("20060102150405"))
err = libbuildpack.NewYAML().Load(filepath.Join(bpDir, "manifest.yml"), &manifest)
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to load manifest.yml file: %v", err)
}
return PackageUniquelyVersionedBuildpackExtra(strings.Replace(manifest.Language, "-", "_", -1), buildpackVersion, stack, Cached, stackAssociationSupported)
}
func PackageShimmedBuildpack(bpDir, stack string) (VersionedBuildpackPackage, error) {
var (
name string
version string
err error
)
DefaultLogger.Debug("package-shimmed-buildpack")
bpFilePath := os.Getenv("BUILDPACK_FILE")
if bpFilePath == "" {
cnb2cf := pexec.NewExecutable(glow.ExecutableName)
cli := glow.NewCLI(cnb2cf)
archiver := glow.NewArchiver(cli)
timestamp := time.Now().Format("20060102150405")
bpFilePath, err = archiver.Archive(bpDir, stack, timestamp, Cached)
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("failed to package shimmed buildpack: %s", err)
}
}
if !filepath.IsAbs(bpFilePath) {
bpFilePath = filepath.Join(bpDir, bpFilePath)
}
version, name, err = extractVersionAndNameFromPackagedBuildpack(bpFilePath)
if err != nil {
return VersionedBuildpackPackage{}, err
}
name = strings.Replace(name, "-", "_", -1)
err = CreateOrUpdateBuildpack(name, bpFilePath, stack)
if err != nil {
return VersionedBuildpackPackage{}, fmt.Errorf("Failed to create or update buildpack: %v", err)
}
return VersionedBuildpackPackage{
Version: version,
File: bpFilePath,
}, nil
}
func extractVersionAndNameFromPackagedBuildpack(bpFilePath string) (version string, name string, err error) {
r, err := zip.OpenReader(bpFilePath)
if err != nil {
log.Fatal(err)
}
defer r.Close()
for _, f := range r.File {
if f.Name == "VERSION" {
versionContents, err := readZipFile(f)
if err != nil {
return "", "", nil
}
version = versionContents.String()
} else if f.Name == "manifest.yml" {
manifestContents, err := readZipFile(f)
if err != nil {
return "", "", nil
}
if err := yaml.Unmarshal(manifestContents.Bytes(), &manifest); err != nil {
return "", "", nil
}
name = manifest.Language
}
}
return version, name, nil
}
func readZipFile(f *zip.File) (*bytes.Buffer, error) {
rc, err := f.Open()
if err != nil {
return nil, err
}
defer rc.Close()
buf := &bytes.Buffer{}
if _, err := io.Copy(buf, rc); err != nil {
return nil, err
}
return buf, nil
}
func CopyCfHome() error {
cf_home := os.Getenv("CF_HOME")
if cf_home == "" {
cf_home = os.Getenv("HOME")
}
cf_home_new, err := ioutil.TempDir("", "cf-home-copy")
if err != nil {
return err
}
if err := os.Mkdir(filepath.Join(cf_home_new, ".cf"), 0755); err != nil {
return err
}
if err := libbuildpack.CopyDirectory(filepath.Join(cf_home, ".cf"), filepath.Join(cf_home_new, ".cf")); err != nil {
return err
}
return os.Setenv("CF_HOME", cf_home_new)
}
func SeedRandom() {
seed := int64(time.Now().Nanosecond() + os.Getpid())
rand.Seed(seed)
}
func RemovePackagedBuildpack(buildpack VersionedBuildpackPackage) error {
if os.Getenv("BUILDPACK_FILE") == "" {
return os.Remove(buildpack.File)
}
return nil
}
func readVersionFromZip(filePath string) (string, error) {
r, err := zip.OpenReader(filePath)
if err != nil {
return "", err
}
defer r.Close()
for _, f := range r.File {
if f.Name != "VERSION" {
continue
}
rc, err := f.Open()
defer rc.Close()
if err != nil {
return "", err
}
out, err := ioutil.ReadAll(rc)
if err != nil {
return "", err
}
return strings.TrimSpace(fmt.Sprintf("%s", out)), nil
}
return "", fmt.Errorf("Could not find VERSION file from buildpack artifact: %s", filePath)
}