✨ Make the edit command to be a plugin.

cmd/main.go

@@ -35,7 +35,6 @@ func main() {
 			&pluginv2.Plugin{},
 		),
 		cli.WithExtraCommands(
-			newEditCmd(),
 			newCompletionCmd(),
 			version.NewCmd(),
 		),

pkg/cli/api.go

@@ -54,6 +54,7 @@ func (c cli) newAPIContext() plugin.Context {
 	return ctx
 }
 
+// nolint:dupl
 func (c cli) bindCreateAPI(ctx plugin.Context, cmd *cobra.Command) {
 	var getter plugin.CreateAPIPluginGetter
 	for _, p := range c.resolvedPlugins {

pkg/cli/cli.go

@@ -354,6 +354,8 @@ func (c cli) buildRootCmd() *cobra.Command {
 		rootCmd.AddCommand(createCmd)
 	}
 
+	// kubebuilder edit
+	rootCmd.AddCommand(c.newEditCmd())
 	// kubebuilder init
 	rootCmd.AddCommand(c.newInitCmd())
 

pkg/cli/edit.go

@@ -0,0 +1,92 @@
+/*
+Copyright 2020 The Kubernetes Authors.
+
+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 cli
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+
+	"sigs.k8s.io/kubebuilder/internal/config"
+	"sigs.k8s.io/kubebuilder/pkg/plugin"
+)
+
+func (c *cli) newEditCmd() *cobra.Command {
+	ctx := c.newEditContext()
+	cmd := &cobra.Command{
+		Use:     "edit",
+		Short:   "This command will edit the project configuration",
+		Long:    ctx.Description,
+		Example: ctx.Examples,
+		RunE: errCmdFunc(
+			fmt.Errorf("project must be initialized"),
+		),
+	}
+
+	// Lookup the plugin for projectVersion and bind it to the command.
+	c.bindEdit(ctx, cmd)
+	return cmd
+
+}
+
+func (c *cli) newEditContext() plugin.Context {
+	ctx := plugin.Context{
+		CommandName: c.commandName,
+		Description: `This command will edit the project configuration. You can have single or multi group project.`,
+	}
+
+	return ctx
+}
+
+// nolint:dupl
+func (c *cli) bindEdit(ctx plugin.Context, cmd *cobra.Command) {
+	var getter plugin.EditPluginGetter
+	for _, p := range c.resolvedPlugins {
+		tmpGetter, isGetter := p.(plugin.EditPluginGetter)
+		if isGetter {
+			if getter != nil {
+				err := fmt.Errorf("duplicate edit project plugins for project version %q (%s, %s), "+
+					"use a more specific plugin key", c.projectVersion, plugin.KeyFor(getter), plugin.KeyFor(p))
+				cmdErr(cmd, err)
+				return
+			}
+			getter = tmpGetter
+		}
+	}
+
+	cfg, err := config.LoadInitialized()
+	if err != nil {
+		cmdErr(cmd, err)
+		return
+	}
+
+	if getter == nil {
+		err := fmt.Errorf("layout plugin %q does not support a edit project plugin", cfg.Layout)
+		cmdErr(cmd, err)
+		return
+	}
+
+	editProject := getter.GetEditPlugin()
+	editProject.InjectConfig(&cfg.Config)
+	editProject.BindFlags(cmd.Flags())
+	editProject.UpdateContext(&ctx)
+	cmd.Long = ctx.Description
+	cmd.Example = ctx.Examples
+	cmd.RunE = runECmdFunc(cfg, editProject,
+		fmt.Sprintf("failed to edit project with version %q", c.projectVersion))
+
+}

pkg/cli/webhook.go

@@ -54,6 +54,7 @@ func (c cli) newWebhookContext() plugin.Context {
 	return ctx
 }
 
+// nolint:dupl
 func (c cli) bindCreateWebhook(ctx plugin.Context, cmd *cobra.Command) {
 	var getter plugin.CreateWebhookPluginGetter
 	for _, p := range c.resolvedPlugins {

pkg/plugin/interfaces.go

@@ -105,3 +105,15 @@ type CreateWebhookPluginGetter interface {
 type CreateWebhook interface {
 	GenericSubcommand
 }
+
+// EditPluginGetter is an interface that defines gets an Edit plugin
+type EditPluginGetter interface {
+	Base
+	// GetEditPlugin returns the underlying Edit interface.
+	GetEditPlugin() Edit
+}
+
+// Edit is an interface that represents an `edit` command
+type Edit interface {
+	GenericSubcommand
+}

pkg/plugin/v2/edit.go

@@ -0,0 +1,82 @@
+/*
+Copyright 2020 The Kubernetes Authors.
+
+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 v2
+
+import (
+	"fmt"
+
+	"github.com/spf13/pflag"
+	"sigs.k8s.io/kubebuilder/internal/cmdutil"
+	"sigs.k8s.io/kubebuilder/pkg/model/config"
+	"sigs.k8s.io/kubebuilder/pkg/plugin"
+	"sigs.k8s.io/kubebuilder/pkg/plugin/scaffold"
+	"sigs.k8s.io/kubebuilder/pkg/plugin/v2/scaffolds"
+)
+
+type editPlugin struct {
+	config *config.Config
+	// For help text
+	commandName string
+
+	multigroup bool
+}
+
+var (
+	_ plugin.Edit        = &editPlugin{}
+	_ cmdutil.RunOptions = &editPlugin{}
+)
+
+func (p *editPlugin) UpdateContext(ctx *plugin.Context) {
+	ctx.Description = `This command will edit the project configuration. You can have single or multi group project.`
+
+	ctx.Examples = fmt.Sprintf(`# Enable the multigroup layout
+        %s edit --multigroup
+
+        # Disable the multigroup layout
+        %s edit --multigroup=false
+	`, ctx.CommandName, ctx.CommandName)
+
+	p.commandName = ctx.CommandName
+}
+
+func (p *editPlugin) BindFlags(fs *pflag.FlagSet) {
+	fs.BoolVar(&p.multigroup, "multigroup", false, "enable or disable multigroup layout")
+}
+
+func (p *editPlugin) InjectConfig(c *config.Config) {
+	// v3 project configs get a 'layout' value.
+	if c.IsV3() {
+		c.Layout = plugin.KeyFor(Plugin{})
+	}
+	p.config = c
+}
+
+func (p *editPlugin) Run() error {
+	return cmdutil.Run(p)
+}
+
+func (p *editPlugin) Validate() error {
+	return nil
+}
+
+func (p *editPlugin) GetScaffolder() (scaffold.Scaffolder, error) {
+	return scaffolds.NewEditScaffolder(p.config, p.multigroup), nil
+}
+
+func (p *editPlugin) PostScaffold() error {
+	return nil
+}

pkg/plugin/v2/plugin.go

@@ -33,13 +33,15 @@ var (
 	_ plugin.InitPluginGetter          = Plugin{}
 	_ plugin.CreateAPIPluginGetter     = Plugin{}
 	_ plugin.CreateWebhookPluginGetter = Plugin{}
+	_ plugin.EditPluginGetter          = Plugin{}
 )
 
 // Plugin defines the plugins operations for the v2 plugin version.
 type Plugin struct {
 	initPlugin
 	createAPIPlugin
 	createWebhookPlugin
+	editPlugin
 }
 
 // Name returns the name of the plugin for the v2 which is in this case `go.kubebuilder.io`
@@ -61,3 +63,6 @@ func (p Plugin) GetCreateAPIPlugin() plugin.CreateAPI { return &p.createAPIPlugi
 
 // GetCreateWebhookPlugin will return the plugin for v2 which is responsible for scaffold webhooks for the project
 func (p Plugin) GetCreateWebhookPlugin() plugin.CreateWebhook { return &p.createWebhookPlugin }
+
+// GetEditPlugin will return the plugin for v2 which is responsible for editing the scaffold of the project
+func (p Plugin) GetEditPlugin() plugin.Edit { return &p.editPlugin }