Fix deploying packages w/ no component tarballs (#1973)

## Related Issue

Fixes #1963 

## Type of change

- [x] Bug fix (non-breaking change which fixes an issue)

---------

Signed-off-by: razzle <harry@razzle.cloud>
Co-authored-by: Wayne Starr <Racer159@users.noreply.github.com>

src/pkg/packager/common.go

@@ -339,11 +339,11 @@ func (p *Packager) loadZarfPkg() error {
 	}
 
 	// Get a list of paths for the components of the package
-	components, err := os.ReadDir(p.tmp.Components)
-	if err != nil {
+	componentTarballs, err := os.ReadDir(p.tmp.Components)
+	if err != nil && !utils.InvalidPath(p.tmp.Components) {
 		return fmt.Errorf("unable to get a list of components... %w", err)
 	}
-	for _, path := range components {
+	for _, path := range componentTarballs {
 		// If the components are tarballs, extract them!
 		componentPath := filepath.Join(p.tmp.Components, path.Name())
 		if !path.IsDir() && strings.HasSuffix(path.Name(), ".tar") {
@@ -357,8 +357,7 @@ func (p *Packager) loadZarfPkg() error {
 	}
 
 	// If a SBOM tar file exist, temporarily place them in the deploy directory
-	_, tarErr := os.Stat(p.tmp.SbomTar)
-	if tarErr == nil {
+	if !utils.InvalidPath(p.tmp.SbomTar) {
 		if err = archiver.Unarchive(p.tmp.SbomTar, p.tmp.Sboms); err != nil {
 			return fmt.Errorf("unable to extract the sbom data from the component: %w", err)
 		}

src/test/e2e/50_oci_package_test.go

@@ -10,11 +10,13 @@ import (
 	"path/filepath"
 	"strings"
 	"testing"
+	"time"
 
 	"github.com/defenseunicorns/zarf/src/pkg/oci"
 	"github.com/stretchr/testify/require"
 	"github.com/stretchr/testify/suite"
 	"oras.land/oras-go/v2/registry"
+	"oras.land/oras-go/v2/registry/remote"
 )
 
 type RegistryClientTestSuite struct {
@@ -163,6 +165,20 @@ func (suite *RegistryClientTestSuite) Test_5_Copy() {
 	dst.WithInsecureConnection(true)
 	dst.WithContext(ctx)
 
+	reg, err := remote.NewRegistry(strings.Split(dstRef, "/")[0])
+	suite.NoError(err)
+	reg.PlainHTTP = true
+	attempt := 0
+	for attempt <= 5 {
+		err = reg.Ping(ctx)
+		if err == nil {
+			break
+		}
+		attempt++
+		time.Sleep(2 * time.Second)
+	}
+	require.Less(t, attempt, 5, "failed to ping registry")
+
 	err = oci.CopyPackage(ctx, src, dst, nil, 5)
 	suite.NoError(err)