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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| package artifact | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "path" | ||
| "strings" | ||
|
|
||
| "github.com/google/ko/pkg/commands" | ||
| "github.com/google/ko/pkg/commands/options" | ||
| "github.com/wavesoftware/go-magetasks/config" | ||
| "github.com/wavesoftware/go-magetasks/pkg/files" | ||
| "golang.org/x/mod/modfile" | ||
| ) | ||
|
|
||
| const koImportPath = "ko.import-path" | ||
|
|
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| // ErrKoBuildFailed when th Google's ko fails to build. | ||
| var ErrKoBuildFailed = errors.New("ko build failed") | ||
|
|
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| // KoBuilder builds images with Google's KO. | ||
| type KoBuilder struct{} | ||
|
|
||
| func (kb KoBuilder) Accepts(artifact config.Artifact) bool { | ||
| _, ok := artifact.(Image) | ||
| return ok | ||
| } | ||
|
|
||
| func (kb KoBuilder) Build(artifact config.Artifact, notifier config.Notifier) config.Result { | ||
| image, ok := artifact.(Image) | ||
| if !ok { | ||
| return config.Result{Error: ErrInvalidArtifact} | ||
| } | ||
| bo := &options.BuildOptions{} | ||
| ctx := config.Actual().Context | ||
| builder, err := commands.NewBuilder(ctx, bo) | ||
| if err != nil { | ||
| return resultErrKoBuildFailed(err) | ||
| } | ||
| importPath, err := imageImportPath(image) | ||
| if err != nil { | ||
| return resultErrKoBuildFailed(err) | ||
| } | ||
| result, err := builder.Build(ctx, importPath) | ||
| if err != nil { | ||
| return resultErrKoBuildFailed(err) | ||
| } | ||
| digest, err := result.Digest() | ||
| if err != nil { | ||
| return resultErrKoBuildFailed(err) | ||
| } | ||
| notifier.Notify(fmt.Sprintf("built image: %s", digest)) | ||
| return config.Result{Info: map[string]string{ | ||
| imageReferenceKey: digest.String(), | ||
| }} | ||
| } | ||
|
|
||
| func resultErrKoBuildFailed(err error) config.Result { | ||
| return config.Result{ | ||
| Error: fmt.Errorf("%w: %v", ErrKoBuildFailed, err), | ||
| } | ||
| } | ||
|
|
||
| func imageImportPath(image Image) (string, error) { | ||
| binDir := fullBinaryDirectory(image.GetName()) | ||
| rs, err := lookForGoModule(binDir) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| importPath := rs.resolve(binDir) | ||
| if resolver, ok := image.Args[koImportPath]; ok { | ||
| importPath = resolver() | ||
| } | ||
| return importPath, nil | ||
| } | ||
|
|
||
| func lookForGoModule(dir string) (lookupGoModuleResult, error) { | ||
| rs := lookupGoModuleResult{} | ||
| for i := 0; i < 10_000; i++ { | ||
| modFile := path.Join(dir, "go.mod") | ||
| if files.DontExists(modFile) { | ||
| dir = path.Dir(dir) | ||
| rs.directoryDistance++ | ||
| continue | ||
| } | ||
| bytes, err := ioutil.ReadFile(modFile) | ||
| if err != nil { | ||
| return rs, err | ||
| } | ||
| file, err := modfile.Parse(modFile, bytes, nil) | ||
| if err != nil { | ||
| return rs, err | ||
| } | ||
| rs.module = file | ||
| return rs, nil | ||
| } | ||
| return rs, fmt.Errorf("%w: can't find go module", ErrKoBuildFailed) | ||
| } | ||
|
|
||
| type lookupGoModuleResult struct { | ||
| module *modfile.File | ||
| directoryDistance int | ||
| } | ||
|
|
||
| func (r lookupGoModuleResult) resolve(dir string) string { | ||
| root := dir | ||
| for i := 0; i < r.directoryDistance; i++ { | ||
| root = path.Dir(root) | ||
| } | ||
| p := strings.Replace(dir, root, "", 1) | ||
| return path.Join(r.module.Module.Mod.Path, p) | ||
| } |
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