Update linter config (#1675)

Co-authored-by: Raúl Barroso <[email protected]>

.golangci.yml

@@ -1,10 +1,5 @@
 run:
   timeout: 3m
-  exclude-dirs-use-default: false
-  exclude-dirs:
-    - ^examples/
-    - ^ui/
-    - ^pkg/plugin/processor/builtin/internal/diff # external code
 
 linters-settings:
   depguard:
@@ -42,6 +37,12 @@ linters-settings:
         disabled: true
 
 issues:
+  exclude-dirs-use-default: false
+  exclude-dirs:
+    - ^examples/
+    - ^ui/
+    - ^pkg/plugin/processor/builtin/internal/diff # external code
+
   exclude-rules:
     - path: 'pkg/plugin/processor/builtin/impl'
       linters:

pkg/plugin/processor/builtin/impl/avro/schemaregistry/avro/extractor.go

@@ -91,8 +91,7 @@ func (e extractor) extract(path []string, v reflect.Value, t reflect.Type) (avro
 	case reflect.Map:
 		return e.extractMap(path, v, t)
 	case reflect.Struct:
-		switch t {
-		case timeType:
+		if t == timeType {
 			return avro.NewPrimitiveSchema(
 				avro.Long,
 				avro.NewPrimitiveLogicalSchema(avro.TimestampMicros),

pkg/plugin/processor/builtin/impl/avro/schemaregistry/avro/union.go

@@ -46,17 +46,18 @@ func NewUnionResolver(schema avro.Schema) UnionResolver {
 	// traverse the schema and extract paths to all maps and arrays with a union
 	// as the value type
 	traverseSchema(schema, func(p path) {
-		if isMapUnion(p[len(p)-1].schema) {
+		switch {
+		case isMapUnion(p[len(p)-1].schema):
 			// path points to a map with a union type, copy and store it
 			pCopy := make(path, len(p))
 			copy(pCopy, p)
 			mapUnionPaths = append(mapUnionPaths, pCopy)
-		} else if isArrayUnion(p[len(p)-1].schema) {
+		case isArrayUnion(p[len(p)-1].schema):
 			// path points to an array with a union type, copy and store it
 			pCopy := make(path, len(p))
 			copy(pCopy, p)
 			arrayUnionPaths = append(arrayUnionPaths, pCopy)
-		} else if isNullUnion(p[len(p)-1].schema) {
+		case isNullUnion(p[len(p)-1].schema):
 			// path points to a null union, copy and store it
 			pCopy := make(path, len(p)-1)
 			copy(pCopy, p[:len(p)-1])

pkg/plugin/processor/builtin/impl/webhook/http.go

@@ -81,7 +81,7 @@ func (c *httpConfig) parseHeaders() error {
 	}
 
 	var isContentTypeSet bool
-	for name, _ := range c.Headers {
+	for name := range c.Headers {
 		if strings.ToLower(name) == "content-type" {
 			isContentTypeSet = true
 			break