feat(01-03): add make:plugin and plugin:add scaffolding

- Scaffold a compiling vendor.plugin module with go.mod, plugin.go and config/
- Register the module once in summer.yaml, go.work and the app go.mod
- Keep summer build on the same generate-and-compile path and print elapsed time

cmd/summer/main.go

@@ -10,7 +10,7 @@ import (
 )
 
 func main() {
-	root := bonfire.NewRoot("summer", []bonfire.Command{buildCommand()}, os.Stdout)
+	root := bonfire.NewRoot("summer", toolCommands(), os.Stdout)
 	root.SetArgs(os.Args[1:])
 	if err := root.Execute(); err != nil {
 		fmt.Fprintln(os.Stderr, err)
@@ -18,6 +18,14 @@ func main() {
 	}
 }
 
+func toolCommands() []bonfire.Command {
+	return []bonfire.Command{
+		buildCommand(),
+		makePluginCommand(),
+		addPluginCommand(),
+	}
+}
+
 func buildCommand() bonfire.Command {
 	return bonfire.Command{
 		Name:        "build",
@@ -31,3 +39,58 @@ func buildCommand() bonfire.Command {
 		},
 	}
 }
+
+func makePluginCommand() bonfire.Command {
+	return bonfire.Command{
+		Name:        "make:plugin",
+		Description: "Scaffold a compiling plugin module from a vendor.plugin id",
+		Args: []bonfire.Arg{{
+			Name:        "id",
+			Description: "Plugin ID in vendor.plugin form",
+			Required:    true,
+		}},
+		Run: func(ctx context.Context, in bonfire.Input, out bonfire.Output) error {
+			id, ok := in.Argument("id")
+			if !ok || id == "" {
+				return fmt.Errorf("make:plugin requires a vendor.plugin id")
+			}
+			dir, err := os.Getwd()
+			if err != nil {
+				return err
+			}
+			created, err := build.MakePlugin(ctx, dir, id)
+			if err != nil {
+				return err
+			}
+			out.Printf("created %s\n", created)
+			return nil
+		},
+	}
+}
+
+func addPluginCommand() bonfire.Command {
+	return bonfire.Command{
+		Name:        "plugin:add",
+		Description: "Register a local plugin module in the app manifest and workspace",
+		Args: []bonfire.Arg{{
+			Name:        "dir",
+			Description: "Local plugin directory",
+			Required:    true,
+		}},
+		Run: func(ctx context.Context, in bonfire.Input, out bonfire.Output) error {
+			pluginDir, ok := in.Argument("dir")
+			if !ok || pluginDir == "" {
+				return fmt.Errorf("plugin:add requires a local plugin directory")
+			}
+			dir, err := os.Getwd()
+			if err != nil {
+				return err
+			}
+			if err := build.AddPlugin(ctx, dir, pluginDir); err != nil {
+				return err
+			}
+			out.Printf("added %s\n", pluginDir)
+			return nil
+		},
+	}
+}