Fix QF1003: could use tagged switch" staticcheck warning

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

libpod/container_internal.go

@@ -1182,9 +1182,10 @@ func (c *Container) cleanupRuntime(ctx context.Context) error {
 	// If we were Stopped, we are now Exited, as we've removed ourself
 	// from the runtime.
 	// If we were Created, we are now Configured.
-	if c.state.State == define.ContainerStateStopped {
+	switch c.state.State {
+	case define.ContainerStateStopped:
 		c.state.State = define.ContainerStateExited
-	} else if c.state.State == define.ContainerStateCreated {
+	case define.ContainerStateCreated:
 		c.state.State = define.ContainerStateConfigured
 	}
 
@@ -1219,10 +1220,11 @@ func (c *Container) reinit(ctx context.Context, retainRetries bool) error {
 // Performs all necessary steps to start a container that is not running
 // Does not lock or check validity, requires to run on the same thread that holds the lock for the container.
 func (c *Container) initAndStart(ctx context.Context) (retErr error) {
-	// If we are ContainerStateUnknown, throw an error
-	if c.state.State == define.ContainerStateUnknown {
+	// If we are ContainerState{Unknown,Removing}, throw an error.
+	switch c.state.State {
+	case define.ContainerStateUnknown:
 		return fmt.Errorf("container %s is in an unknown state: %w", c.ID(), define.ErrCtrStateInvalid)
-	} else if c.state.State == define.ContainerStateRemoving {
+	case define.ContainerStateRemoving:
 		return fmt.Errorf("cannot start container %s as it is being removed: %w", c.ID(), define.ErrCtrStateInvalid)
 	}
 
@@ -1688,14 +1690,14 @@ func (c *Container) restartWithTimeout(ctx context.Context, timeout uint) (retEr
 		return err
 	}
 
-	if c.state.State == define.ContainerStateStopped {
-		// Reinitialize the container if we need to
+	switch c.state.State {
+	case define.ContainerStateStopped:
+		// Reinitialize the container if we need to.
 		if err := c.reinit(ctx, false); err != nil {
 			return err
 		}
-	} else if c.state.State == define.ContainerStateConfigured ||
-		c.state.State == define.ContainerStateExited {
-		// Initialize the container
+	case define.ContainerStateConfigured, define.ContainerStateExited:
+		// Initialize the container.
 		if err := c.init(ctx, false); err != nil {
 			return err
 		}

pkg/bindings/containers/attach.go

@@ -229,26 +229,26 @@ func Attach(ctx context.Context, nameOrID string, stdin io.Reader, stdout io.Wri
 				return err
 			}
 
-			switch {
-			case fd == 0:
+			switch fd {
+			case 0:
 				if isSet.stdout {
 					if _, err := stdout.Write(frame[0:l]); err != nil {
 						return err
 					}
 				}
-			case fd == 1:
+			case 1:
 				if isSet.stdout {
 					if _, err := stdout.Write(frame[0:l]); err != nil {
 						return err
 					}
 				}
-			case fd == 2:
+			case 2:
 				if isSet.stderr {
 					if _, err := stderr.Write(frame[0:l]); err != nil {
 						return err
 					}
 				}
-			case fd == 3:
+			case 3:
 				return fmt.Errorf("from service from stream: %s", frame)
 			default:
 				return fmt.Errorf("unrecognized channel '%d' in header, 0-3 supported", fd)
@@ -558,8 +558,8 @@ func ExecStartAndAttach(ctx context.Context, sessionID string, options *ExecStar
 				return err
 			}
 
-			switch {
-			case fd == 0:
+			switch fd {
+			case 0:
 				if options.GetAttachInput() {
 					// Write STDIN to STDOUT (echoing characters
 					// typed by another attach session)
@@ -567,19 +567,19 @@ func ExecStartAndAttach(ctx context.Context, sessionID string, options *ExecStar
 						return err
 					}
 				}
-			case fd == 1:
+			case 1:
 				if options.GetAttachOutput() {
 					if _, err := options.GetOutputStream().Write(frame[0:l]); err != nil {
 						return err
 					}
 				}
-			case fd == 2:
+			case 2:
 				if options.GetAttachError() {
 					if _, err := options.GetErrorStream().Write(frame[0:l]); err != nil {
 						return err
 					}
 				}
-			case fd == 3:
+			case 3:
 				return fmt.Errorf("from service from stream: %s", frame)
 			default:
 				return fmt.Errorf("unrecognized channel '%d' in header, 0-3 supported", fd)

pkg/domain/filters/containers.go

@@ -73,9 +73,10 @@ func GenerateContainerFilterFuncs(filter string, filterValues []string, r *libpo
 				return false
 			}
 			state := status.String()
-			if status == define.ContainerStateConfigured {
+			switch status {
+			case define.ContainerStateConfigured:
 				state = "created"
-			} else if status == define.ContainerStateStopped {
+			case define.ContainerStateStopped:
 				state = "exited"
 			}
 			for _, filterValue := range filterValues {

pkg/domain/filters/pods.go

@@ -75,9 +75,10 @@ func GeneratePodFilterFunc(filter string, filterValues []string, r *libpod.Runti
 			}
 			for _, ctrStatus := range ctrStatuses {
 				state := ctrStatus.String()
-				if ctrStatus == define.ContainerStateConfigured {
+				switch ctrStatus {
+				case define.ContainerStateConfigured:
 					state = "created"
-				} else if ctrStatus == define.ContainerStateStopped {
+				case define.ContainerStateStopped:
 					state = "exited"
 				}
 				for _, filterValue := range filterValues {

pkg/k8s.io/apimachinery/pkg/api/resource/quantity.go

@@ -347,9 +347,10 @@ func ParseQuantity(str string) (Quantity, error) {
 	}
 
 	// So that no one but us has to think about suffixes, remove it.
-	if base == 10 {
+	switch base {
+	case 10:
 		amount.SetScale(amount.Scale() + Scale(exponent).infScale())
-	} else if base == 2 {
+	case 2:
 		// numericSuffix = 2 ** exponent
 		numericSuffix := big.NewInt(1).Lsh(bigOne, uint(exponent))
 		ub := amount.UnscaledBig()

pkg/specgen/namespaces.go

@@ -288,11 +288,11 @@ func ParseCgroupNamespace(ns string) (Namespace, error) {
 // form.
 func ParseIPCNamespace(ns string) (Namespace, error) {
 	toReturn := Namespace{}
-	switch {
-	case ns == "shareable", ns == "":
+	switch ns {
+	case "shareable", "":
 		toReturn.NSMode = Shareable
 		return toReturn, nil
-	case ns == "none":
+	case "none":
 		toReturn.NSMode = None
 		return toReturn, nil
 	}

pkg/systemd/generate/containers.go

@@ -238,8 +238,8 @@ func setContainerNameForTemplate(startCommand []string, info *containerInfo) ([]
 			break
 		}
 	}
-	switch {
-	case nameIx == -1:
+	switch nameIx {
+	case -1:
 		// if not found, add --name argument in the command slice before the "run" argument.
 		// it's assumed that the command slice contains this argument.
 		runIx := -1

test/e2e/generate_kube_test.go

@@ -704,11 +704,12 @@ var _ = Describe("Podman kube generate", func() {
 				// have anything for protocol under the ports as tcp is the default
 				// for k8s
 				Expect(port.Protocol).To(BeEmpty())
-				if port.HostPort == 4008 {
+				switch port.HostPort {
+				case 4008:
 					foundPort400x++
-				} else if port.HostPort == 5008 {
+				case 5008:
 					foundPort500x++
-				} else {
+				default:
 					foundOtherPort++
 				}
 			}