Fix linting issues

.golangci.yml

@@ -0,0 +1,61 @@
+run:
+  timeout: 10m
+  allow-parallel-runners: true
+
+issues:
+  # don't skip warning about doc comments
+  # don't exclude the default set of lint
+  exclude-use-default: false
+  # restore some of the defaults
+  # (fill in the rest as needed)
+  exclude-rules:
+    - path: "clientutils/*"
+      linters:
+        - lll
+    - path: "envtestutils/*"
+      linters:
+        - lll
+    - path: "unstructuredutils/*"
+      linters:
+        - lll
+    - path: "metautils/*"
+      linters:
+        - lll
+    - path: "kustomizeutils/*"
+      linters:
+        - lll
+    - path: "configutils/*"
+      linters:
+        - lll
+    - path: "conditionutils/*"
+      linters:
+        - lll
+    - path: "testutils/*"
+      linters:
+        - lll
+    - path: "cmdutils/*"
+      linters:
+        - dupl
+linters:
+  disable-all: true
+  enable:
+    - copyloopvar
+    - dupl
+    - errcheck
+    - goconst
+    - gocyclo
+    - gofmt
+    - goimports
+    - gosimple
+    - govet
+    - ineffassign
+    - ginkgolinter
+    - lll
+    - misspell
+    - nakedret
+    - prealloc
+    - staticcheck
+    - typecheck
+    - unconvert
+    - unparam
+    - unused

.reuse/dep5

@@ -9,7 +9,7 @@ Source: https://github.com/ironcore-dev/controller-utils
 Files:
   .github/*
   .gitignore
-  .golangci.yaml
+  .golangci.yml
   CODEOWNERS
   CODE_OF_CONDUCT.md
   CONTRIBUTING.md

clientutils/clientutils.go

@@ -488,10 +488,9 @@ func CreateOrUseAndPatch(
 	var (
 		base  = obj.DeepCopyObject().(client.Object)
 		best  client.Object
-		other []client.Object
+		other = make([]client.Object, 0, len(objects))
 	)
 	for _, object := range objects {
-		object := object
 		if err := setObject(obj, object); err != nil {
 			return controllerutil.OperationResultNone, nil, err
 		}

conditionutils/conditionutils.go

@@ -116,7 +116,7 @@ func getAndConvertField(v reflect.Value, name string, into interface{}) error {
 // Otherwise, it returns a pointer to that value.
 func direct(v reflect.Value) reflect.Value {
 	if v.IsZero() {
-		return reflect.New(reflect.PtrTo(v.Type())).Elem()
+		return reflect.New(reflect.PointerTo(v.Type())).Elem()
 	}
 
 	res := reflect.New(v.Type())

metautils/metautils.go

@@ -28,14 +28,13 @@ func ConvertAndSetList(scheme *runtime.Scheme, list runtime.Object, objs []runti
 		return err
 	}
 
-	var converted []runtime.Object
-	for _, obj := range objs {
+	converted := make([]runtime.Object, len(objs))
+	for i, obj := range objs {
 		into := reflect.New(elemType).Interface()
 		if err := scheme.Convert(obj, into, nil); err != nil {
 			return err
 		}
-
-		converted = append(converted, into.(runtime.Object))
+		converted[i] = into.(runtime.Object)
 	}
 	return meta.SetList(list, converted)
 }

modutils/modutils.go

@@ -99,7 +99,6 @@ func (e *Executor) GetE(name string) (*Module, error) {
 			continue
 		}
 
-		mod := mod
 		return &mod, nil
 	}
 	return nil, fmt.Errorf("module %q not found", name)

unstructuredutils/unstructuredutils.go

@@ -63,7 +63,7 @@ func Read(r io.Reader) ([]unstructured.Unstructured, error) {
 	for {
 		ext := runtime.RawExtension{}
 		if err := d.Decode(&ext); err != nil {
-			if !errors.Is(io.EOF, err) {
+			if !errors.Is(err, io.EOF) {
 				return nil, fmt.Errorf("error parsing: %w", err)
 			}
 			return objs, nil
@@ -107,7 +107,6 @@ func UnstructuredSliceToObjectSlice(unstructureds []unstructured.Unstructured) [
 	}
 	res := make([]client.Object, 0, len(unstructureds))
 	for _, u := range unstructureds {
-		u := u
 		res = append(res, &u)
 	}
 	return res