chore: ensure we return zeroed value when returning errors (#2988)

Signed-off-by: Kit Patella <kit@defenseunicorns.com>

src/cmd/tools/helm/load_plugins.go

@@ -318,11 +318,14 @@ func loadFile(path string) (*pluginCommand, error) {
 	cmds := new(pluginCommand)
 	b, err := os.ReadFile(path)
 	if err != nil {
-		return cmds, fmt.Errorf("file (%s) not provided by plugin. No plugin auto-completion possible", path)
+		return nil, fmt.Errorf("file (%s) not provided by plugin. No plugin auto-completion possible", path)
 	}
 
 	err = yaml.Unmarshal(b, cmds)
-	return cmds, err
+	if err != nil {
+		return nil, err
+	}
+	return cmds, nil
 }
 
 // pluginDynamicComp call the plugin.complete script of the plugin (if available)

src/pkg/cluster/pvc.go

@@ -10,6 +10,8 @@ import (
 )
 
 // UpdateGiteaPVC updates the existing Gitea persistent volume claim and tells Gitea whether to create or not.
+// TODO(mkcp): We return both string true/false and errors here so our callers get a string. This should be returning an
+// empty val if we error, but we'll have to refactor upstream beforehand.
 func (c *Cluster) UpdateGiteaPVC(ctx context.Context, pvcName string, shouldRollBack bool) (string, error) {
 	if shouldRollBack {
 		pvc, err := c.Clientset.CoreV1().PersistentVolumeClaims(ZarfNamespaceName).Get(ctx, pvcName, metav1.GetOptions{})

src/pkg/cluster/tunnel.go

@@ -83,7 +83,6 @@ func (c *Cluster) ListConnections(ctx context.Context) (types.ConnectStrings, er
 
 // NewTargetTunnelInfo returns a new TunnelInfo object for the specified target.
 func (c *Cluster) NewTargetTunnelInfo(ctx context.Context, target string) (TunnelInfo, error) {
-	var err error
 	zt := TunnelInfo{
 		Namespace:    ZarfNamespaceName,
 		ResourceType: SvcResource,
@@ -102,9 +101,11 @@ func (c *Cluster) NewTargetTunnelInfo(ctx context.Context, target string) (Tunne
 		zt.RemotePort = ZarfInjectorPort
 	default:
 		if target != "" {
-			if zt, err = c.checkForZarfConnectLabel(ctx, target); err != nil {
+			ztNew, err := c.checkForZarfConnectLabel(ctx, target)
+			if err != nil {
 				return TunnelInfo{}, fmt.Errorf("problem looking for a zarf connect label in the cluster: %s", err.Error())
 			}
+			zt = ztNew
 		}
 		if zt.ResourceName == "" {
 			return TunnelInfo{}, fmt.Errorf("missing resource name")
@@ -113,7 +114,7 @@ func (c *Cluster) NewTargetTunnelInfo(ctx context.Context, target string) (Tunne
 			return TunnelInfo{}, fmt.Errorf("missing remote port")
 		}
 	}
-	return zt, err
+	return zt, nil
 }
 
 // Connect will establish a tunnel to the specified target.

src/pkg/cluster/zarf.go

@@ -52,7 +52,11 @@ func (c *Cluster) GetDeployedZarfPackages(ctx context.Context) ([]types.Deployed
 		deployedPackages = append(deployedPackages, deployedPackage)
 	}
 
-	return deployedPackages, errors.Join(errs...)
+	err = errors.Join(errs...)
+	if err != nil {
+		return nil, err
+	}
+	return deployedPackages, nil
 }
 
 // GetDeployedPackage gets the metadata information about the package name provided (if it exists in the cluster).
@@ -325,7 +329,10 @@ func (c *Cluster) UpdateInternalArtifactServerToken(ctx context.Context, oldGitS
 		}
 		return nil
 	})
-	return newToken, err
+	if err != nil {
+		return "", err
+	}
+	return newToken, nil
 }
 
 // UpdateInternalGitServerSecret updates the internal gitea server secrets with the new git server info

src/pkg/transform/artifact.go

@@ -87,16 +87,16 @@ func GenTransformURL(targetBaseURL string, sourceURL string) (*url.URL, error) {
 	// Rebuild the generic URL
 	transformedURL := fmt.Sprintf("%s/generic/%s/%s/%s", targetBaseURL, packageNameGlobal, version, fileName)
 
-	url, err := url.Parse(transformedURL)
+	parsedURL, err := url.Parse(transformedURL)
 	if err != nil {
-		return url, err
+		return &url.URL{}, err
 	}
 
 	// Drop the RawQuery and Fragment to avoid them being interpreted for generic packages
-	url.RawQuery = ""
-	url.Fragment = ""
+	parsedURL.RawQuery = ""
+	parsedURL.Fragment = ""
 
-	return url, err
+	return parsedURL, nil
 }
 
 // transformRegistryPath transforms a given request path using a new base URL and regex.

src/pkg/utils/io.go

@@ -40,15 +40,18 @@ func GetFinalExecutablePath() (string, error) {
 
 	// In case the binary is symlinked somewhere else, get the final destination
 	linkedPath, err := filepath.EvalSymlinks(binaryPath)
-	return linkedPath, err
+	if err != nil {
+		return "", err
+	}
+	return linkedPath, nil
 }
 
 // GetFinalExecutableCommand returns the final path to the Zarf executable including and library prefixes and overrides.
 func GetFinalExecutableCommand() (string, error) {
 	// In case the binary is symlinked somewhere else, get the final destination
 	zarfCommand, err := GetFinalExecutablePath()
 	if err != nil {
-		return zarfCommand, err
+		return "", err
 	}
 
 	if config.ActionsCommandZarfPrefix != "" {
@@ -60,5 +63,5 @@ func GetFinalExecutableCommand() (string, error) {
 		zarfCommand = "zarf"
 	}
 
-	return zarfCommand, err
+	return zarfCommand, nil
 }

src/pkg/utils/yaml.go

@@ -192,12 +192,12 @@ func SplitYAML(yamlData []byte) ([]*unstructured.Unstructured, error) {
 	var objs []*unstructured.Unstructured
 	ymls, err := SplitYAMLToString(yamlData)
 	if err != nil {
-		return nil, err
+		return []*unstructured.Unstructured{}, err
 	}
 	for _, yml := range ymls {
 		u := &unstructured.Unstructured{}
 		if err := k8syaml.Unmarshal([]byte(yml), u); err != nil {
-			return objs, fmt.Errorf("failed to unmarshal manifest: %w", err)
+			return []*unstructured.Unstructured{}, fmt.Errorf("failed to unmarshal manifest: %w", err)
 		}
 		objs = append(objs, u)
 	}
@@ -220,7 +220,7 @@ func SplitYAMLToString(yamlData []byte) ([]string, error) {
 			if errors.Is(err, io.EOF) {
 				break
 			}
-			return objs, fmt.Errorf("failed to unmarshal manifest: %w", err)
+			return []string{}, fmt.Errorf("failed to unmarshal manifest: %w", err)
 		}
 		ext.Raw = bytes.TrimSpace(ext.Raw)
 		if len(ext.Raw) == 0 || bytes.Equal(ext.Raw, []byte("null")) {

src/pkg/zoci/pull.go

@@ -70,7 +70,10 @@ func (r *Remote) PullPackage(ctx context.Context, destinationDir string, concurr
 	err = r.CopyToTarget(ctx, layersToPull, dst, copyOpts)
 	doneSaving <- err
 	<-doneSaving
-	return layersToPull, err
+	if err != nil {
+		return nil, err
+	}
+	return layersToPull, nil
 }
 
 // LayersFromRequestedComponents returns the descriptors for the given components from the root manifest.