odo init filters devfile stacks by supported architectures

cmd/odo/alizer_test.go

@@ -52,14 +52,15 @@ func TestOdoAlizer(t *testing.T) {
 				alizerClient := alizer.NewMockClient(ctrl)
 				path := "/"
 				alizerClient.EXPECT().DetectFramework(gomock.Any(), path).
-					Return(
-						model.DevFileType{
+					Return(alizer.DetectedFramework{
+						Type: model.DevFileType{
 							Name: "framework-name",
 						},
-						"1.1.1",
-						api.Registry{
+						DefaultVersion: "1.1.1",
+						Registry: api.Registry{
 							Name: "TheRegistryName",
 						},
+					},
 						nil,
 					)
 				alizerClient.EXPECT().DetectPorts(path).Return([]int{8080, 3000}, nil)
@@ -92,14 +93,15 @@ func TestOdoAlizer(t *testing.T) {
 				alizerClient := alizer.NewMockClient(ctrl)
 				path := "/"
 				alizerClient.EXPECT().DetectFramework(gomock.Any(), path).
-					Return(
-						model.DevFileType{
+					Return(alizer.DetectedFramework{
+						Type: model.DevFileType{
 							Name: "framework-name",
 						},
-						"1.1.1",
-						api.Registry{
+						DefaultVersion: "1.1.1",
+						Registry: api.Registry{
 							Name: "TheRegistryName",
 						},
+					},
 						nil,
 					)
 				alizerClient.EXPECT().DetectPorts(path).Return([]int{8080, 3000}, nil)

docs/website/docs/command-reference/docs-mdx/init/interactive_mode_directory_with_sources_output.mdx

@@ -9,6 +9,7 @@ $ odo init
 Interactive mode enabled, please answer the following questions:
  ✓  Determining a Devfile for the current directory [1s]
 Based on the files in the current directory odo detected
+Supported architectures: all
 Language: JavaScript
 Project type: Node.js
 Application ports: 8080

docs/website/docs/command-reference/docs-mdx/init/interactive_mode_empty_directory_output.mdx

@@ -7,6 +7,12 @@ $ odo init
  \__/
 
 Interactive mode enabled, please answer the following questions:
+? Select architectures to filter by:  [Use arrows to move, space to select, <right> to all, <left> to none, type to filter]
+> [x]  amd64
+[ ]  arm64
+[ ]  ppc64le
+[ ]  s390x
+? Select architectures to filter by: amd64
 ? Select language: Java
 ? Select project type: Maven Java
  ✓  Downloading devfile "java-maven" from registry "DefaultDevfileRegistry" [4s]

docs/website/docs/user-guides/quickstart/docs-mdx/dotnet/dotnet_odo_init_output.mdx

@@ -9,10 +9,17 @@ $ odo init
 Interactive mode enabled, please answer the following questions:
  ✓  Determining a Devfile for the current directory [1s]
 Based on the files in the current directory odo detected
+Supported architectures: all
 Language: .NET
 Project type: dotnet
 The devfile "dotnet50:1.0.3" from the registry "DefaultDevfileRegistry" will be downloaded.
 ? Is this correct? No
+? Select architectures to filter by:  [Use arrows to move, space to select, <right> to all, <left> to none, type to filter]
+> [x]  amd64
+[ ]  arm64
+[ ]  ppc64le
+[ ]  s390x
+? Select architectures to filter by: amd64
 ? Select language: .NET
 ? Select project type: .NET 6.0
  ✓  Downloading devfile "dotnet60" from registry "DefaultDevfileRegistry" [3s]

docs/website/docs/user-guides/quickstart/docs-mdx/go/go_odo_init_output.mdx

@@ -9,6 +9,7 @@ $ odo init
 Interactive mode enabled, please answer the following questions:
  ✓  Determining a Devfile for the current directory [1s]
 Based on the files in the current directory odo detected
+Supported architectures: all
 Language: Go
 Project type: Go
 Application ports: 8080

docs/website/docs/user-guides/quickstart/docs-mdx/java/java_odo_init_output.mdx

@@ -9,6 +9,7 @@ $ odo init
 Interactive mode enabled, please answer the following questions:
  ✓  Determining a Devfile for the current directory [1s]
 Based on the files in the current directory odo detected
+Supported architectures: all
 Language: Java
 Project type: springboot
 The devfile "java-springboot:1.2.0" from the registry "DefaultDevfileRegistry" will be downloaded.

docs/website/docs/user-guides/quickstart/docs-mdx/nodejs/nodejs_odo_init_output.mdx

@@ -9,6 +9,7 @@ $ odo init
 Interactive mode enabled, please answer the following questions:
  ✓  Determining a Devfile for the current directory [1s]
 Based on the files in the current directory odo detected
+Supported architectures: all
 Language: JavaScript
 Project type: Node.js
 Application ports: 3000

pkg/alizer/alizer.go

@@ -29,11 +29,11 @@ func NewAlizerClient(registryClient registry.Client) *Alizer {
 
 // DetectFramework uses the alizer library in order to detect the devfile
 // to use depending on the files in the path
-func (o *Alizer) DetectFramework(ctx context.Context, path string) (_ model.DevFileType, defaultVersion string, _ api.Registry, _ error) {
+func (o *Alizer) DetectFramework(ctx context.Context, path string) (DetectedFramework, error) {
 	types := []model.DevFileType{}
 	components, err := o.registryClient.ListDevfileStacks(ctx, "", "", "", false, false)
 	if err != nil {
-		return model.DevFileType{}, defaultVersion, api.Registry{}, err
+		return DetectedFramework{}, err
 	}
 	for _, component := range components.Items {
 		types = append(types, model.DevFileType{
@@ -45,15 +45,21 @@ func (o *Alizer) DetectFramework(ctx context.Context, path string) (_ model.DevF
 	}
 	typ, err := recognizer.SelectDevFileFromTypes(path, types)
 	if err != nil {
-		return model.DevFileType{}, defaultVersion, api.Registry{}, err
+		return DetectedFramework{}, err
 	}
 	// Get the default stack version that will be downloaded
+	var defaultVersion string
 	for _, version := range components.Items[typ].Versions {
 		if version.IsDefault {
 			defaultVersion = version.Version
 		}
 	}
-	return types[typ], defaultVersion, components.Items[typ].Registry, nil
+	return DetectedFramework{
+		Type:           types[typ],
+		DefaultVersion: defaultVersion,
+		Registry:       components.Items[typ].Registry,
+		Architectures:  components.Items[typ].Architectures,
+	}, nil
 }
 
 // DetectName retrieves the name of the project (if available).

pkg/alizer/alizer_test.go

@@ -119,18 +119,18 @@ func TestDetectFramework(t *testing.T) {
 			registryClient.EXPECT().ListDevfileStacks(ctx, "", "", "", false, false).Return(list, nil)
 			alizerClient := NewAlizerClient(registryClient)
 			// Run function DetectFramework
-			detected, _, registry, err := alizerClient.DetectFramework(ctx, tt.args.path)
 
+			detected, err := alizerClient.DetectFramework(ctx, tt.args.path)
 			if !tt.wantErr == (err != nil) {
 				t.Errorf("unexpected error %v, wantErr %v", err, tt.wantErr)
 				return
 			}
 
-			if detected.Name != tt.wantedDevfile {
+			if detected.Type.Name != tt.wantedDevfile {
 				t.Errorf("unexpected devfile %v, wantedDevfile %v", detected, tt.wantedDevfile)
 			}
-			if registry.Name != tt.wantedRegistry {
-				t.Errorf("unexpected registry %v, wantedRegistry %v", registry, tt.wantedRegistry)
+			if detected.Registry.Name != tt.wantedRegistry {
+				t.Errorf("unexpected registry %v, wantedRegistry %v", detected.Registry, tt.wantedRegistry)
 			}
 		})
 	}

pkg/alizer/interface.go

@@ -4,12 +4,18 @@ import (
 	"context"
 
 	"github.com/devfile/alizer/pkg/apis/model"
-
 	"github.com/redhat-developer/odo/pkg/api"
 )
 
+type DetectedFramework struct {
+	Type           model.DevFileType
+	DefaultVersion string
+	Registry       api.Registry
+	Architectures  []string
+}
+
 type Client interface {
-	DetectFramework(ctx context.Context, path string) (_ model.DevFileType, defaultVersion string, _ api.Registry, _ error)
+	DetectFramework(ctx context.Context, path string) (DetectedFramework, error)
 	DetectName(path string) (string, error)
 	DetectPorts(path string) ([]int, error)
 }

pkg/api/analyze.go

@@ -19,4 +19,6 @@ type DetectionResult struct {
 	DevfileVersion   string `json:"devfileVersion,omitempty"`
 	// Name represents the project/application name as detected by alizer
 	Name string `json:"name,omitempty"`
+	// Architectures represent the architectures with which the Devfile must be compatible with.
+	Architectures []string `json:"architectures,omitempty"`
 }

pkg/init/asker/asker.go

@@ -24,18 +24,36 @@ func NewSurveyAsker() *Survey {
 	return &Survey{}
 }
 
-func (o *Survey) AskLanguage(langs []string) (string, error) {
+func (o *Survey) AskArchitectures(archs []string, selectedDefault []string) ([]string, error) {
+	question := &survey.MultiSelect{
+		Message: "Select architectures to filter by:",
+		Options: archs,
+		Default: selectedDefault,
+	}
+	var answer []string
+	err := survey.AskOne(question, &answer)
+	if err != nil {
+		return nil, err
+	}
+	return answer, nil
+}
+
+func (o *Survey) AskLanguage(langs []string) (bool, string, error) {
 	sort.Strings(langs)
+	langs = append(langs, GOBACK)
 	question := &survey.Select{
 		Message: "Select language:",
 		Options: langs,
 	}
-	var answer string
-	err := survey.AskOne(question, &answer)
+	var answerPos int
+	err := survey.AskOne(question, &answerPos)
 	if err != nil {
-		return "", err
+		return false, "", err
 	}
-	return answer, nil
+	if answerPos == len(langs)-1 {
+		return true, "", nil
+	}
+	return false, langs[answerPos], nil
 }
 
 func (o *Survey) AskType(types registry.TypesWithDetails) (back bool, _ api.DevfileStack, _ error) {

pkg/init/asker/interface.go

@@ -9,8 +9,12 @@ import (
 
 // Asker interactively asks for information to the user
 type Asker interface {
-	// AskLanguage asks for a language, from a list of language names. The language name is returned
-	AskLanguage(langs []string) (string, error)
+	// AskArchitectures asks for a selection of architectures from a list of architecture names
+	AskArchitectures(archs []string, selectedDefault []string) ([]string, error)
+
+	// AskLanguage asks for a language, from a list of language names.
+	// back is returned as true if the user selected to go back, or the language name is returned
+	AskLanguage(langs []string) (back bool, result string, err error)
 
 	// AskType asks for a Devfile type, or to go back. back is returned as true if the user selected to go back,
 	// or the selected type is returned

pkg/init/backend/alizer.go

@@ -3,10 +3,11 @@ package backend
 import (
 	"context"
 	"fmt"
-	"github.com/redhat-developer/odo/pkg/log"
 	"strconv"
 	"strings"
 
+	"github.com/redhat-developer/odo/pkg/log"
+
 	"github.com/devfile/api/v2/pkg/apis/workspaces/v1alpha2"
 	"github.com/devfile/library/v2/pkg/devfile/parser"
 
@@ -34,6 +35,13 @@ func (o *AlizerBackend) Validate(flags map[string]string, fs filesystem.Filesyst
 	return nil
 }
 
+func archList(archs []string) string {
+	if len(archs) == 0 {
+		return "all"
+	}
+	return strings.Join(archs, ", ")
+}
+
 // SelectDevfile calls the Alizer to detect the devfile and asks for confirmation to the user
 func (o *AlizerBackend) SelectDevfile(ctx context.Context, flags map[string]string, fs filesystem.Filesystem, dir string) (*api.DetectionResult, error) {
 	type result struct {
@@ -47,12 +55,13 @@ func (o *AlizerBackend) SelectDevfile(ctx context.Context, flags map[string]stri
 		location, err := func() (location *api.DetectionResult, err error) {
 			spinner := log.Spinnerf("Determining a Devfile for the current directory")
 			defer spinner.End(err == nil)
-			selected, defaultVersion, registry, err := o.alizerClient.DetectFramework(ctx, dir)
+			detected, err := o.alizerClient.DetectFramework(ctx, dir)
 			if err != nil {
 				return nil, err
 			}
 
-			msg := fmt.Sprintf("Based on the files in the current directory odo detected\nLanguage: %s\nProject type: %s", selected.Language, selected.ProjectType)
+			msg := fmt.Sprintf("Based on the files in the current directory odo detected\nSupported architectures: %s\nLanguage: %s\nProject type: %s",
+				archList(detected.Architectures), detected.Type.Language, detected.Type.ProjectType)
 
 			appPorts, err := o.alizerClient.DetectPorts(dir)
 			if err != nil {
@@ -68,15 +77,15 @@ func (o *AlizerBackend) SelectDevfile(ctx context.Context, flags map[string]stri
 			}
 
 			fmt.Println(msg)
-			fmt.Printf("The devfile \"%s:%s\" from the registry %q will be downloaded.\n", selected.Name, defaultVersion, registry.Name)
+			fmt.Printf("The devfile \"%s:%s\" from the registry %q will be downloaded.\n", detected.Type.Name, detected.DefaultVersion, detected.Registry.Name)
 			confirm, err := o.askerClient.AskCorrect()
 			if err != nil {
 				return nil, err
 			}
 			if !confirm {
 				return nil, nil
 			}
-			return alizer.NewDetectionResult(selected, registry, appPorts, defaultVersion, ""), nil
+			return alizer.NewDetectionResult(detected.Type, detected.Registry, appPorts, detected.DefaultVersion, ""), nil
 		}()
 		resultChan <- result{
 			location: location,