feat: add kusion release show command

pkg/cmd/release/release.go

@@ -23,7 +23,7 @@ func NewCmdRel(streams genericiooptions.IOStreams) *cobra.Command {
 		Run:                   cmdutil.DefaultSubCommandRun(streams.ErrOut),
 	}
 
-	cmd.AddCommand(NewCmdUnlock(streams), NewCmdList(streams))
+	cmd.AddCommand(NewCmdUnlock(streams), NewCmdList(streams), NewCmdShow(streams))
 
 	return cmd
 }

pkg/cmd/release/show.go

@@ -0,0 +1,232 @@
+package rel
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"gopkg.in/yaml.v3"
+
+	v1 "kusionstack.io/kusion/pkg/apis/api.kusion.io/v1"
+
+	"k8s.io/cli-runtime/pkg/genericiooptions"
+
+	"k8s.io/kubectl/pkg/util/templates"
+
+	"kusionstack.io/kusion/pkg/backend"
+	"kusionstack.io/kusion/pkg/engine/release"
+	"kusionstack.io/kusion/pkg/project"
+	"kusionstack.io/kusion/pkg/util/i18n"
+
+	cmdutil "kusionstack.io/kusion/pkg/cmd/util"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	showShort = i18n.T("Show details of a release of the current or specified stack")
+
+	showLong = i18n.T(`
+	Show details of a release of the current or specified stack.
+
+	This command displays detailed information about a release of the current project in the current or a specified workspace
+	`)
+
+	showExample = i18n.T(`
+	# Show details of the latest release of the current project in the current workspace
+	kusion release show
+
+	# Show details of a specific release of the current project in the current workspace
+	kusion release show --revision=1
+
+	# Show details of a specific release of the specified project in the specified workspace
+	kusion release show --revision=1 --project=hoangndst --workspace=dev
+
+	# Show details of the latest release with specified backend
+	kusion release show --backend=local
+
+	# Show details of the latest release with specified output format
+	kusion release show --output=json
+	`)
+)
+
+const jsonOutput = "json"
+
+// ShowFlags reflects the information that CLI is gathering via flags,
+// which will be converted into ShowOptions.
+type ShowFlags struct {
+	Revision  *uint64
+	Project   *string
+	Workspace *string
+	Backend   *string
+	Output    string
+}
+
+// ShowOptions defines the configuration parameters for the `kusion release show` command.
+type ShowOptions struct {
+	Revision       *uint64
+	Project        *string
+	Workspace      *string
+	ReleaseStorage release.Storage
+	Output         string
+}
+
+// NewShowFlags returns a default ShowFlags.
+func NewShowFlags(_ genericiooptions.IOStreams) *ShowFlags {
+	revision := uint64(0)
+	workspace := ""
+	projectName := ""
+	backendName := ""
+	output := ""
+	return &ShowFlags{
+		Revision:  &revision,
+		Project:   &projectName,
+		Workspace: &workspace,
+		Backend:   &backendName,
+		Output:    output,
+	}
+}
+
+// NewCmdShow creates the `kusion release show` command.
+func NewCmdShow(streams genericiooptions.IOStreams) *cobra.Command {
+	flags := NewShowFlags(streams)
+
+	cmd := &cobra.Command{
+		Use:     "show",
+		Short:   showShort,
+		Long:    templates.LongDesc(showLong),
+		Example: templates.Examples(showExample),
+		RunE: func(cmd *cobra.Command, args []string) (err error) {
+			o, err := flags.ToOptions()
+			defer cmdutil.RecoverErr(&err)
+			cmdutil.CheckErr(err)
+			cmdutil.CheckErr(o.Validate(cmd, args))
+			cmdutil.CheckErr(o.Run())
+
+			return
+		},
+	}
+
+	flags.AddFlags(cmd)
+
+	return cmd
+}
+
+// AddFlags adds flags for a ShowOptions struct to the specified command.
+func (f *ShowFlags) AddFlags(cmd *cobra.Command) {
+	if f.Revision != nil {
+		cmd.Flags().Uint64VarP(f.Revision, "revision", "", 0, i18n.T("The revision number of the release"))
+	}
+	if f.Project != nil {
+		cmd.Flags().StringVarP(f.Project, "project", "", "", i18n.T("The project name"))
+	}
+	if f.Workspace != nil {
+		cmd.Flags().StringVarP(f.Workspace, "workspace", "", "", i18n.T("The workspace name"))
+	}
+	if f.Backend != nil {
+		cmd.Flags().StringVarP(f.Backend, "backend", "", "", i18n.T("The backend to use, supports 'local', 'oss' and 's3'"))
+	}
+	cmd.Flags().StringVarP(&f.Output, "output", "o", f.Output, i18n.T("Specify the output format"))
+}
+
+// ToOptions converts ShowFlags to ShowOptions.
+func (f *ShowFlags) ToOptions() (*ShowOptions, error) {
+	var storageBackend backend.Backend
+	var err error
+	if f.Backend != nil && *f.Backend != "" {
+		storageBackend, err = backend.NewBackend(*f.Backend)
+		if err != nil {
+			return nil, err
+		}
+	} else {
+		storageBackend, err = backend.NewBackend("")
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	workspaceName := ""
+	projectName := ""
+
+	workspaceStorage, err := storageBackend.WorkspaceStorage()
+	if err != nil {
+		return nil, err
+	}
+	if f.Workspace != nil && *f.Workspace != "" {
+		refWorkspace, err := workspaceStorage.Get(*f.Workspace)
+		if err != nil {
+			return nil, err
+		}
+		workspaceName = refWorkspace.Name
+	} else {
+		currentWorkspace, err := workspaceStorage.GetCurrent()
+		if err != nil {
+			return nil, err
+		}
+		workspaceName = currentWorkspace
+	}
+
+	if f.Project != nil && *f.Project != "" {
+		projectName = *f.Project
+	} else {
+		currentProject, _, err := project.DetectProjectAndStacks()
+		if err != nil {
+			return nil, err
+		}
+		projectName = currentProject.Name
+	}
+	storage, err := storageBackend.ReleaseStorage(projectName, workspaceName)
+	if err != nil {
+		return nil, err
+	}
+
+	return &ShowOptions{
+		Revision:       f.Revision,
+		Output:         f.Output,
+		Project:        &projectName,
+		Workspace:      &workspaceName,
+		ReleaseStorage: storage,
+	}, nil
+}
+
+// Validate checks the provided options for the `kusion release show` command.
+func (o *ShowOptions) Validate(cmd *cobra.Command, args []string) error {
+	if len(args) != 0 {
+		return cmdutil.UsageErrorf(cmd, "Unexpected args: %v", args)
+	}
+
+	return nil
+}
+
+// Run executes the `kusion release show` command.
+func (o *ShowOptions) Run() (err error) {
+	var rel *v1.Release
+	if o.Revision != nil && *o.Revision != 0 {
+		rel, err = o.ReleaseStorage.Get(*o.Revision)
+		if err != nil {
+			fmt.Printf("No release found for revision %d of project: %s, workspace: %s\n",
+				*o.Revision, *o.Project, *o.Workspace)
+			return err
+		}
+	} else {
+		rel, err = o.ReleaseStorage.Get(o.ReleaseStorage.GetLatestRevision())
+		if err != nil {
+			fmt.Printf("No release found for project: %s, workspace: %s\n",
+				*o.Project, *o.Workspace)
+			return err
+		}
+	}
+	if o.Output == jsonOutput {
+		data, err := json.MarshalIndent(rel, "", "    ")
+		if err != nil {
+			return err
+		}
+		fmt.Println(string(data))
+	} else {
+		data, err := yaml.Marshal(rel)
+		if err != nil {
+			return err
+		}
+		fmt.Println(string(data))
+	}
+	return nil
+}

pkg/cmd/release/show_test.go

@@ -0,0 +1,132 @@
+package rel
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/bytedance/mockey"
+	"github.com/stretchr/testify/assert"
+	"k8s.io/cli-runtime/pkg/genericiooptions"
+	v1 "kusionstack.io/kusion/pkg/apis/api.kusion.io/v1"
+	"kusionstack.io/kusion/pkg/backend"
+	"kusionstack.io/kusion/pkg/engine/release"
+	"kusionstack.io/kusion/pkg/project"
+	"kusionstack.io/kusion/pkg/workspace"
+)
+
+func TestShowFlags_ToOptions(t *testing.T) {
+	streams := genericiooptions.IOStreams{}
+
+	f := NewShowFlags(streams)
+
+	t.Run("Successful Option Creation", func(t *testing.T) {
+		mockey.PatchConvey("mock detect project and stack", t, func() {
+			mockey.Mock(project.DetectProjectAndStackFrom).Return(&v1.Project{
+				Name: "mock-project",
+			}, &v1.Stack{
+				Name: "mock-stack",
+			}, nil).Build()
+			_, err := f.ToOptions()
+			assert.NoError(t, err)
+		})
+	})
+
+	t.Run("Failed Option Creation Due to Invalid Backend", func(t *testing.T) {
+		s := "invalid-backend"
+		f.Backend = &s
+		_, err := f.ToOptions()
+		assert.Error(t, err)
+	})
+}
+
+func TestShowOptions_Validate(t *testing.T) {
+	opts := &ShowOptions{}
+	streams := genericiooptions.IOStreams{}
+	cmd := NewCmdShow(streams)
+
+	t.Run("Valid Args", func(t *testing.T) {
+		err := opts.Validate(cmd, []string{})
+		assert.NoError(t, err)
+	})
+
+	t.Run("Invalid Args", func(t *testing.T) {
+		err := opts.Validate(cmd, []string{"invalid-args"})
+		assert.Error(t, err)
+	})
+}
+
+func TestShowOptions_Run(t *testing.T) {
+	revisions := uint64(1)
+	projectName := "mock-project"
+	workspaceName := "mock-workspace"
+	opts := &ShowOptions{
+		Revision:       &revisions,
+		Project:        &projectName,
+		Workspace:      &workspaceName,
+		ReleaseStorage: &fakeStorageShow{},
+	}
+
+	t.Run("Successfully show the latest release", func(t *testing.T) {
+		mockey.PatchConvey("mock release getter", t, func() {
+			mockey.Mock((*fakeStorageShow).Get).
+				Return(&v1.Release{
+					Project:   "mock-project",
+					Workspace: "mock-workspace",
+					Revision:  1,
+				}, nil).Build()
+
+			err := opts.Run()
+			assert.NoError(t, err)
+		})
+	})
+
+	t.Run("Failed to show the latest release", func(t *testing.T) {
+		mockey.PatchConvey("mock release getter", t, func() {
+			mockey.Mock((*fakeStorageShow).Get).
+				Return(nil, fmt.Errorf("release does not exist")).Build()
+
+			err := opts.Run()
+			assert.ErrorContains(t, err, "release does not exist")
+		})
+	})
+}
+
+var _ backend.Backend = (*fakeBackendShow)(nil)
+
+type fakeBackendShow struct{}
+
+func (f *fakeBackendShow) WorkspaceStorage() (workspace.Storage, error) {
+	return nil, nil
+}
+
+func (f *fakeBackendShow) ReleaseStorage(_, _ string) (release.Storage, error) {
+	return nil, nil
+}
+
+var _ release.Storage = (*fakeStorageShow)(nil)
+
+type fakeStorageShow struct{}
+
+func (f *fakeStorageShow) Get(_ uint64) (*v1.Release, error) {
+	return nil, nil
+}
+
+func (f *fakeStorageShow) GetRevisions() []uint64 {
+	return nil
+}
+
+func (f *fakeStorageShow) GetStackBoundRevisions(_ string) []uint64 {
+	return nil
+}
+
+func (f *fakeStorageShow) GetLatestRevision() uint64 {
+	return 0
+}
+
+func (f *fakeStorageShow) Create(_ *v1.Release) error {
+	return nil
+}
+
+func (f *fakeStorageShow) Update(_ *v1.Release) error {
+	return nil
+}