migrate golangci-lint config to v2 format (#3354)

* migrate golangci-lint config to v2 format

* chore: skip CI on migration [skip ci]

* Bump golangci version

* Address several golangci-lint/staticcheck warnings

* change staticchecks settings

.github/workflows/golangci-lint.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v6.5.2
+        uses: golangci/golangci-lint-action@v7.0.0
         with:
-          verify: false # disable verifying the configuration since golangci is currently introducing breaking changes in the configuration 
+          verify: true 
 

.golangci.yml

@@ -1,3 +1,34 @@
+version: "2"
 run:
   timeout: 5m
   tests: false
+linters:
+  settings:
+    staticcheck:
+      checks:
+        - all
+        # Incorrect or missing package comment.
+        # https://staticcheck.dev/docs/checks/#ST1000
+        - -ST1000
+        # Omit embedded fields from selector expression.
+        # https://staticcheck.dev/docs/checks/#QF1008
+        - -QF1008
+        - -ST1003
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

command.go

@@ -1412,7 +1412,8 @@ func (cmd *MapStringSliceInterfaceCmd) readReply(rd *proto.Reader) (err error) {
 
 	cmd.val = make(map[string][]interface{})
 
-	if readType == proto.RespMap {
+	switch readType {
+	case proto.RespMap:
 		n, err := rd.ReadMapLen()
 		if err != nil {
 			return err
@@ -1435,7 +1436,7 @@ func (cmd *MapStringSliceInterfaceCmd) readReply(rd *proto.Reader) (err error) {
 				cmd.val[k][j] = value
 			}
 		}
-	} else if readType == proto.RespArray {
+	case proto.RespArray:
 		// RESP2 response
 		n, err := rd.ReadArrayLen()
 		if err != nil {

extra/rediscensus/go.mod

@@ -19,6 +19,6 @@ require (
 )
 
 retract (
-	v9.5.3 // This version was accidentally released.
 	v9.7.2 // This version was accidentally released.
+	v9.5.3 // This version was accidentally released.
 )

extra/rediscmd/go.mod

@@ -16,6 +16,6 @@ require (
 )
 
 retract (
-	v9.5.3 // This version was accidentally released.
 	v9.7.2 // This version was accidentally released.
+	v9.5.3 // This version was accidentally released.
 )

extra/redisotel/go.mod

@@ -24,6 +24,6 @@ require (
 )
 
 retract (
-	v9.5.3 // This version was accidentally released.
 	v9.7.2 // This version was accidentally released.
+	v9.5.3 // This version was accidentally released.
 )

extra/redisprometheus/go.mod

@@ -23,6 +23,6 @@ require (
 )
 
 retract (
-	v9.5.3 // This version was accidentally released.
 	v9.7.2 // This version was accidentally released.
+	v9.5.3 // This version was accidentally released.
 )

options.go

@@ -214,9 +214,10 @@ func (opt *Options) init() {
 		opt.ConnMaxIdleTime = 30 * time.Minute
 	}
 
-	if opt.MaxRetries == -1 {
+	switch opt.MaxRetries {
+	case -1:
 		opt.MaxRetries = 0
-	} else if opt.MaxRetries == 0 {
+	case 0:
 		opt.MaxRetries = 3
 	}
 	switch opt.MinRetryBackoff {

osscluster.go

@@ -111,9 +111,10 @@ type ClusterOptions struct {
 }
 
 func (opt *ClusterOptions) init() {
-	if opt.MaxRedirects == -1 {
+	switch opt.MaxRedirects {
+	case -1:
 		opt.MaxRedirects = 0
-	} else if opt.MaxRedirects == 0 {
+	case 0:
 		opt.MaxRedirects = 3
 	}
 

ring.go

@@ -128,9 +128,10 @@ func (opt *RingOptions) init() {
 		opt.NewConsistentHash = newRendezvous
 	}
 
-	if opt.MaxRetries == -1 {
+	switch opt.MaxRetries {
+	case -1:
 		opt.MaxRetries = 0
-	} else if opt.MaxRetries == 0 {
+	case 0:
 		opt.MaxRetries = 3
 	}
 	switch opt.MinRetryBackoff {

sentinel_test.go

@@ -41,7 +41,7 @@ var _ = Describe("Sentinel resolution", func() {
 		client := redis.NewFailoverClient(&redis.FailoverOptions{
 			MasterName:    sentinelName,
 			SentinelAddrs: sentinelAddrs,
-			MaxRetries: -1,
+			MaxRetries:    -1,
 		})
 
 		err := client.Ping(shortCtx).Err()

universal.go

@@ -259,13 +259,13 @@ var (
 // NewUniversalClient returns a new multi client. The type of the returned client depends
 // on the following conditions:
 //
-// 1. If the MasterName option is specified with RouteByLatency, RouteRandomly or IsClusterMode,
+//  1. If the MasterName option is specified with RouteByLatency, RouteRandomly or IsClusterMode,
-//    a FailoverClusterClient is returned.
+//     a FailoverClusterClient is returned.
-// 2. If the MasterName option is specified without RouteByLatency, RouteRandomly or IsClusterMode,
+//  2. If the MasterName option is specified without RouteByLatency, RouteRandomly or IsClusterMode,
-//    a sentinel-backed FailoverClient is returned.
+//     a sentinel-backed FailoverClient is returned.
-// 3. If the number of Addrs is two or more, or IsClusterMode option is specified,
+//  3. If the number of Addrs is two or more, or IsClusterMode option is specified,
-//    a ClusterClient is returned.
+//     a ClusterClient is returned.
-// 4. Otherwise, a single-node Client is returned.
+//  4. Otherwise, a single-node Client is returned.
 func NewUniversalClient(opts *UniversalOptions) UniversalClient {
 	switch {
 	case opts.MasterName != "" && (opts.RouteByLatency || opts.RouteRandomly || opts.IsClusterMode):