Migrate git-init image off PipelineResourceResult

This commit makes introduces the generics of PipelineResourceResult
and TaskrunResult in termination package and migrates the git-init image
off from using PipelineResourceResult.

cmd/git-init/main.go

@@ -17,7 +17,6 @@ package main
 
 import (
 	"flag"
-	"os"
 
 	"github.com/tektoncd/pipeline/pkg/apis/pipeline/v1beta1"
 	"github.com/tektoncd/pipeline/pkg/git"
@@ -58,17 +57,18 @@ func main() {
 	if err != nil {
 		logger.Fatalf("Error parsing revision %s of git repository: %s", fetchSpec.Revision, err)
 	}
-	resourceName := os.Getenv("TEKTON_RESOURCE_NAME")
-	output := []v1beta1.PipelineResourceResult{
+	output := []v1beta1.TaskRunResult{
 		{
-			Key:          "commit",
-			Value:        commit,
-			ResourceName: resourceName,
+			Name: "commit",
+			Value: v1beta1.ParamValue{
+				StringVal: commit,
+			},
 		},
 		{
-			Key:          "url",
-			Value:        fetchSpec.URL,
-			ResourceName: resourceName,
+			Name: "url",
+			Value: v1beta1.ParamValue{
+				StringVal: fetchSpec.URL,
+			},
 		},
 	}
 

pkg/termination/write.go

@@ -29,13 +29,17 @@ const (
 	MaxContainerTerminationMessageLength = 1024 * 4
 )
 
+type iResult interface {
+	v1beta1.TaskRunResult | v1beta1.PipelineResourceResult
+}
+
 // WriteMessage writes the results to the termination message path.
-func WriteMessage(path string, pro []v1beta1.PipelineResourceResult) error {
+func WriteMessage[T v1beta1.TaskRunResult | v1beta1.PipelineResourceResult](path string, pro []T) error {
 	// if the file at path exists, concatenate the new values otherwise create it
 	// file at path already exists
 	fileContents, err := os.ReadFile(path)
 	if err == nil {
-		var existingEntries []v1beta1.PipelineResourceResult
+		var existingEntries []T
 		if err := json.Unmarshal(fileContents, &existingEntries); err == nil {
 			// append new entries to existing entries
 			pro = append(existingEntries, pro...)