Replace pkger with embed.FS compatibility

kyaml/fn/framework/example/main.go

@@ -4,29 +4,49 @@
 package main
 
 import (
+	"embed"
 	"fmt"
 	"os"
 
+	"github.com/spf13/cobra"
 	"sigs.k8s.io/kustomize/kyaml/fn/framework"
 	"sigs.k8s.io/kustomize/kyaml/fn/framework/command"
-	"sigs.k8s.io/kustomize/kyaml/yaml"
+	"sigs.k8s.io/kustomize/kyaml/fn/framework/parser"
 )
 
-func main() {
-	var value string
-	fn := func(rl *framework.ResourceList) error {
-		for i := range rl.Items {
-			// set the annotation on each resource item
-			if err := rl.Items[i].PipeE(yaml.SetAnnotation("value", value)); err != nil {
-				return err
-			}
-		}
-		return nil
-	}
-	cmd := command.Build(framework.ResourceListProcessorFunc(fn), command.StandaloneEnabled, false)
-	cmd.Flags().StringVar(&value, "value", "", "annotation value")
+//go:embed templates/*
+var templateFS embed.FS
 
-	if err := cmd.Execute(); err != nil {
+var annotationTemplate = `
+metadata:
+  annotations: 
+    value: {{ .Value }}
+`
+
+func buildProcessor(value *string) framework.ResourceListProcessor {
+	return framework.TemplateProcessor{
+		ResourceTemplates: []framework.ResourceTemplate{{
+			Templates: parser.TemplateFiles("templates").FromFS(templateFS),
+		}},
+		PatchTemplates: []framework.PatchTemplate{&framework.ResourcePatchTemplate{
+			Templates: parser.TemplateStrings(annotationTemplate),
+		}},
+		// This will be populated from the --value flag if provided,
+		// or the config file's `value` field if provided, with the latter taking precedence.
+		TemplateData: struct {
+			Value *string `yaml:"value"`
+		}{Value: value}}
+}
+
+func buildCmd() *cobra.Command {
+	var value string
+	cmd := command.Build(buildProcessor(&value), command.StandaloneEnabled, false)
+	cmd.Flags().StringVar(&value, "value", "", "annotation value")
+	return cmd
+}
+
+func main() {
+	if err := buildCmd().Execute(); err != nil {
 		fmt.Println(err)
 		os.Exit(1)
 	}