chore: linter: staticcheck

Signed-off-by: Jakob Borg <jakob@kastelo.net>

.golangci.yml

@@ -70,6 +70,12 @@ linters:
       # Rollback errors can be ignored
       - linters: [errcheck]
         source: Rollback
+      # Embedded fields named in selectors may add clarity
+      - linters: [staticcheck]
+        text: QF1008
+      # Don't necessarily rewrite !(foo || bar) to !foo && !bar
+      - linters: [staticcheck]
+        text: QF1001
   settings:
     sloglint:
       context: "scope"

cmd/syncthing/main.go

@@ -659,13 +659,14 @@ func auditWriter(auditFile string) io.Writer {
 	var auditDest string
 	var auditFlags int
 
-	if auditFile == "-" {
+	switch auditFile {
+	case "-":
 		fd = os.Stdout
 		auditDest = "stdout"
-	} else if auditFile == "--" {
+	case "--":
 		fd = os.Stderr
 		auditDest = "stderr"
-	} else {
+	default:
 		if auditFile == "" {
 			auditFile = locations.GetTimestamped(locations.AuditLog)
 			auditFlags = os.O_WRONLY | os.O_CREATE | os.O_EXCL

lib/config/migrations.go

@@ -428,11 +428,12 @@ func migrateToConfigV12(cfg *Configuration) {
 	var newDiscoServers []string
 	var useDefault bool
 	for _, addr := range cfg.Options.RawGlobalAnnServers {
-		if addr == "udp4://announce.syncthing.net:22026" {
+		switch addr {
+		case "udp4://announce.syncthing.net:22026":
 			useDefault = true
-		} else if addr == "udp6://announce-v6.syncthing.net:22026" {
+		case "udp6://announce-v6.syncthing.net:22026":
 			useDefault = true
-		} else {
+		default:
 			newDiscoServers = append(newDiscoServers, addr)
 		}
 	}

lib/connections/tcp_listen.go

@@ -81,11 +81,12 @@ func (t *tcpListener) serve(ctx context.Context) error {
 	defer slog.InfoContext(ctx, "TCP listener shutting down", slogutil.Address(tcaddr))
 
 	var ipVersion nat.IPVersion
-	if t.uri.Scheme == "tcp4" {
+	switch t.uri.Scheme {
+	case "tcp4":
 		ipVersion = nat.IPv4Only
-	} else if t.uri.Scheme == "tcp6" {
+	case "tcp6":
 		ipVersion = nat.IPv6Only
-	} else {
+	default:
 		ipVersion = nat.IPvAny
 	}
 	mapping := t.natService.NewMapping(nat.TCP, ipVersion, tcaddr.IP, tcaddr.Port)

lib/fs/filesystem.go

@@ -140,12 +140,12 @@ func (evType EventType) Merge(other EventType) EventType {
 }
 
 func (evType EventType) String() string {
-	switch {
+	switch evType {
-	case evType == NonRemove:
+	case NonRemove:
 		return "non-remove"
-	case evType == Remove:
+	case Remove:
 		return "remove"
-	case evType == Mixed:
+	case Mixed:
 		return "mixed"
 	default:
 		panic("bug: Unknown event type")

lib/upnp/igd_service.go

@@ -132,11 +132,12 @@ func (s *IGDService) AddPinhole(ctx context.Context, protocol nat.Protocol, intA
 
 func (s *IGDService) tryAddPinholeForIP6(ctx context.Context, protocol nat.Protocol, port int, duration time.Duration, ip net.IP) error {
 	var protoNumber int
-	if protocol == nat.TCP {
+	switch protocol {
+	case nat.TCP:
 		protoNumber = 6
-	} else if protocol == nat.UDP {
+	case nat.UDP:
 		protoNumber = 17
-	} else {
+	default:
 		return errors.New("protocol not supported")
 	}
 
@@ -258,11 +259,12 @@ func (s *IGDService) GetLocalIPv4Address() net.IP {
 // SupportsIPVersion checks whether this is a WANIPv6FirewallControl device,
 // in which case pinholing instead of port mapping should be done
 func (s *IGDService) SupportsIPVersion(version nat.IPVersion) bool {
-	if version == nat.IPvAny {
+	switch version {
+	case nat.IPvAny:
 		return true
-	} else if version == nat.IPv6Only {
+	case nat.IPv6Only:
 		return s.URN == urnWANIPv6FirewallControlV1
-	} else if version == nat.IPv4Only {
+	case nat.IPv4Only:
 		return s.URN != urnWANIPv6FirewallControlV1
 	}
 

lib/watchaggregator/aggregator.go

@@ -449,10 +449,11 @@ func (a *aggregator) updateConfig(folderCfg config.FolderConfiguration) {
 }
 
 func updateInProgressSet(event events.Event, inProgress map[string]struct{}) {
-	if event.Type == events.ItemStarted {
+	switch event.Type {
+	case events.ItemStarted:
 		path := event.Data.(map[string]string)["item"]
 		inProgress[path] = struct{}{}
-	} else if event.Type == events.ItemFinished {
+	case events.ItemFinished:
 		path := event.Data.(map[string]interface{})["item"].(string)
 		delete(inProgress, path)
 	}