fix: always disable Ryuk

internal/testutil/localstack.go

@@ -3,13 +3,19 @@ package testutil
 import (
 	"context"
 	"fmt"
+	"os"
 
 	dockercontainer "github.com/docker/docker/api/types/container"
 	"github.com/testcontainers/testcontainers-go"
 	"github.com/testcontainers/testcontainers-go/modules/localstack"
 )
 
 func SetupLocalStack(ctx context.Context, version string) (*localstack.LocalStackContainer, string, error) {
+
+	if err := os.Setenv("TESTCONTAINERS_RYUK_DISABLED", "true"); err != nil {
+		return nil, "", err
+	}
+
 	container, err := localstack.RunContainer(ctx, testcontainers.CustomizeRequest(
 		testcontainers.GenericContainerRequest{
 			ContainerRequest: testcontainers.ContainerRequest{

magefiles/terraformplan.go

@@ -26,11 +26,6 @@ const (
 )
 
 func fixtureTerraformPlanSnapshots(ctx context.Context) error {
-
-	if err := os.Setenv("TESTCONTAINERS_RYUK_DISABLED", "true"); err != nil {
-		return err
-	}
-
 	localstackC, addr, err := testutil.SetupLocalStack(ctx, "3.1.0")
 	if err != nil {
 		return err
@@ -100,7 +95,6 @@ func fixtureTerraformPlanSnapshots(ctx context.Context) error {
 	}
 
 	return g.Wait()
-
 }
 
 func generatePlan(ctx context.Context, execPath, workingDir string) error {

pkg/x/io/io.go

@@ -41,19 +41,14 @@ func NewReadSeekerAtWithSize(r io.Reader) (ReadSeekerAt, int64, error) {
 		return rsa, br.Size(), nil
 	}
 
-	size, err := getSize(r)
+	size, err := getSeekerSize(rsa)
 	if err != nil {
 		return nil, 0, xerrors.Errorf("get size error: %w", err)
 	}
 	return rsa, size, nil
 }
 
-func getSize(r io.Reader) (int64, error) {
-	s, ok := r.(io.Seeker)
-	if !ok {
-		return 0, xerrors.New("reader does not support seeking for size")
-	}
-
+func getSeekerSize(s io.Seeker) (int64, error) {
 	size, err := s.Seek(0, io.SeekEnd)
 	if err != nil {
 		return 0, xerrors.Errorf("seek error: %w", err)