Add Windows exclusion

Author: craigloewen-msft

cmd/nerdctl/container/container_export_test.go

@@ -21,6 +21,7 @@ import (
 	"io"
 	"os"
 	"path/filepath"
+	"runtime"
 	"testing"
 
 	"gotest.tools/v3/assert"
@@ -66,6 +67,10 @@ func validateExportedTar(outFile string) test.Comparator {
 }
 
 func TestExportStoppedContainer(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("export is not supported on Windows")
+	}
+
 	testCase := nerdtest.Setup()
 	testCase.Setup = func(data test.Data, helpers test.Helpers) {
 		identifier := data.Identifier("container")
@@ -108,6 +113,10 @@ func TestExportStoppedContainer(t *testing.T) {
 }
 
 func TestExportRunningContainer(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("export is not supported on Windows")
+	}
+
 	testCase := nerdtest.Setup()
 	testCase.Setup = func(data test.Data, helpers test.Helpers) {
 		identifier := data.Identifier("container")
@@ -149,6 +158,10 @@ func TestExportRunningContainer(t *testing.T) {
 }
 
 func TestExportNonexistentContainer(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("export is not supported on Windows")
+	}
+
 	testCase := nerdtest.Setup()
 	testCase.Command = test.Command("export", "nonexistent-container")
 	testCase.Expected = test.Expects(1, nil, nil)

pkg/cmd/container/export.go

@@ -20,6 +20,7 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"runtime"
 
 	containerd "github.com/containerd/containerd/v2/client"
 	"github.com/containerd/containerd/v2/core/mount"
@@ -32,6 +33,10 @@ import (
 
 // Export exports a container's filesystem as a tar archive
 func Export(ctx context.Context, client *containerd.Client, containerReq string, options types.ContainerExportOptions) error {
+	if runtime.GOOS == "windows" {
+		return fmt.Errorf("Nerdctl export command is not supported on Windows")
+	}
+
 	walker := &containerwalker.ContainerWalker{
 		Client: client,
 		OnFound: func(ctx context.Context, found containerwalker.Found) error {