Linter to ensure go-cmp/cmp is used ONLY in tests

Signed-off-by: Davanum Srinivas <davanum@gmail.com>
2025-07-31 15:25:57 +00:00 · 2025-01-24 17:03:29 -05:00 · 2025-01-24 17:03:29 -05:00 · 4e05bc20db
commit 4e05bc20db
parent c5c19a6487
31 changed files with 72 additions and 28 deletions
--- a/cmd/dependencyverifier/dependencyverifier.go
+++ b/cmd/dependencyverifier/dependencyverifier.go
@ -26,7 +26,7 @@ import (
 	"sort"
 	"strings"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 )

 type Unwanted struct {
--- a/hack/golangci-hints.yaml
+++ b/hack/golangci-hints.yaml
@ -91,6 +91,7 @@ issues:
 linters:
  disable-all: false
  enable: # please keep this alphabetized
+    - depguard
    - forbidigo
    - ginkgolinter
    - gocritic
@ -176,6 +177,16 @@ linters-settings: # please keep this alphabetized
          # this restriction. Whether we then do a global search/replace remains
          # to be decided.
          with-helpers .*
+  depguard:
+    rules:
+      main:
+        files:
+          - $all
+          - "!$test"
+          - "!**/test/**"
+        deny:
+          - pkg: "github.com/google/go-cmp/cmp"
+            desc: "cmp is allowed only in test files"
  forbidigo:
    analyze-types: true
    forbid:
--- a/hack/golangci-strict.yaml
+++ b/hack/golangci-strict.yaml
@ -135,6 +135,7 @@ issues:
 linters:
  disable-all: false
  enable: # please keep this alphabetized
+    - depguard
    - forbidigo
    - ginkgolinter
    - gocritic
@ -222,6 +223,16 @@ linters-settings: # please keep this alphabetized
          # this restriction. Whether we then do a global search/replace remains
          # to be decided.
          with-helpers .*
+  depguard:
+    rules:
+      main:
+        files:
+          - $all
+          - "!$test"
+          - "!**/test/**"
+        deny:
+          - pkg: "github.com/google/go-cmp/cmp"
+            desc: "cmp is allowed only in test files"
  forbidigo:
    analyze-types: true
    forbid:
--- a/hack/golangci.yaml
+++ b/hack/golangci.yaml
@ -141,6 +141,7 @@ issues:
 linters:
  disable-all: true
  enable: # please keep this alphabetized
+    - depguard
    - forbidigo
    - ginkgolinter
    - gocritic
@ -224,6 +225,16 @@ linters-settings: # please keep this alphabetized
          # this restriction. Whether we then do a global search/replace remains
          # to be decided.
          with-helpers .*
+  depguard:
+    rules:
+      main:
+        files:
+          - $all
+          - "!$test"
+          - "!**/test/**"
+        deny:
+          - pkg: "github.com/google/go-cmp/cmp"
+            desc: "cmp is allowed only in test files"
  forbidigo:
    analyze-types: true
    forbid:
--- a/hack/golangci.yaml.in
+++ b/hack/golangci.yaml.in
@ -147,6 +147,7 @@ issues:
 linters:
  disable-all: {{if .Base -}} true {{- else -}} false {{- end}}
  enable: # please keep this alphabetized
+    - depguard
    - forbidigo
    - ginkgolinter
    - gocritic
@ -180,6 +181,16 @@ linters-settings: # please keep this alphabetized
      settings:
        config: |
          {{include "hack/logcheck.conf" | indent 10 | trim}}
+  depguard:
+    rules:
+      main:
+        files:
+          - $all
+          - "!$test"
+          - "!**/test/**"
+        deny:
+          - pkg: "github.com/google/go-cmp/cmp"
+            desc: "cmp is allowed only in test files"
  forbidigo:
    analyze-types: true
    forbid:
--- a/pkg/api/pod/util.go
+++ b/pkg/api/pod/util.go
@ -19,7 +19,7 @@ package pod
 import (
 	"strings"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	metavalidation "k8s.io/apimachinery/pkg/apis/meta/v1/validation"
 	"k8s.io/apimachinery/pkg/util/sets"
--- a/pkg/apis/certificates/validation/validation.go
+++ b/pkg/apis/certificates/validation/validation.go
@ -22,7 +22,7 @@ import (
 	"encoding/pem"
 	"fmt"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	v1 "k8s.io/api/core/v1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	"k8s.io/apimachinery/pkg/util/sets"
--- a/pkg/apis/core/validation/validation.go
+++ b/pkg/apis/core/validation/validation.go
@ -30,7 +30,7 @@ import (
 	"unicode"
 	"unicode/utf8"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	netutils "k8s.io/utils/net"

 	v1 "k8s.io/api/core/v1"
--- a/pkg/controller/volume/persistentvolume/testing/testing.go
+++ b/pkg/controller/volume/persistentvolume/testing/testing.go
@ -24,7 +24,7 @@ import (
 	"strconv"
 	"sync"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	"k8s.io/klog/v2"

 	v1 "k8s.io/api/core/v1"
--- a/pkg/kubelet/status/status_manager.go
+++ b/pkg/kubelet/status/status_manager.go
@ -25,7 +25,7 @@ import (
 	"sync"
 	"time"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	clientset "k8s.io/client-go/kubernetes"

 	v1 "k8s.io/api/core/v1"
--- a/pkg/registry/flowcontrol/ensurer/strategy.go
+++ b/pkg/registry/flowcontrol/ensurer/strategy.go
@ -21,7 +21,7 @@ import (
 	"fmt"
 	"strconv"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	flowcontrolv1 "k8s.io/api/flowcontrol/v1"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
--- a/pkg/scheduler/framework/interface.go
+++ b/pkg/scheduler/framework/interface.go
@ -26,8 +26,8 @@ import (
 	"sync"
 	"time"

-	"github.com/google/go-cmp/cmp"
-	"github.com/google/go-cmp/cmp/cmpopts"
+	"github.com/google/go-cmp/cmp"         //nolint:depguard
+	"github.com/google/go-cmp/cmp/cmpopts" //nolint:depguard

 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
--- a/pkg/scheduler/framework/plugins/dynamicresources/dynamicresources.go
+++ b/pkg/scheduler/framework/plugins/dynamicresources/dynamicresources.go
@ -23,7 +23,7 @@ import (
 	"slices"
 	"sync"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard

 	v1 "k8s.io/api/core/v1"
 	resourceapi "k8s.io/api/resource/v1beta1"
--- a/pkg/scheduler/framework/plugins/noderesources/fit.go
+++ b/pkg/scheduler/framework/plugins/noderesources/fit.go
@ -21,7 +21,7 @@ import (
 	"fmt"
 	"strings"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard

 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
--- a/pkg/scheduler/framework/plugins/noderesources/test_util.go
+++ b/pkg/scheduler/framework/plugins/noderesources/test_util.go
@ -17,7 +17,7 @@ limitations under the License.
 package noderesources

 import (
-	"github.com/google/go-cmp/cmp/cmpopts"
+	"github.com/google/go-cmp/cmp/cmpopts" //nolint:depguard

 	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
--- a/pkg/scheduler/profile/profile.go
+++ b/pkg/scheduler/profile/profile.go
@ -22,7 +22,7 @@ import (
 	"errors"
 	"fmt"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard

 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/client-go/kubernetes/scheme"
--- a/plugin/pkg/admission/noderestriction/admission.go
+++ b/plugin/pkg/admission/noderestriction/admission.go
@ -23,7 +23,7 @@ import (
 	"io"
 	"strings"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard

 	v1 "k8s.io/api/core/v1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
--- a/staging/src/k8s.io/apimachinery/pkg/api/apitesting/roundtrip/compatibility.go
+++ b/staging/src/k8s.io/apimachinery/pkg/api/apitesting/roundtrip/compatibility.go
@ -28,7 +28,7 @@ import (
 	"strings"
 	"testing"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard

 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	"k8s.io/apimachinery/pkg/runtime"
--- a/staging/src/k8s.io/apimachinery/pkg/api/apitesting/roundtrip/roundtrip.go
+++ b/staging/src/k8s.io/apimachinery/pkg/api/apitesting/roundtrip/roundtrip.go
@ -24,7 +24,7 @@ import (
 	"strings"
 	"testing"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	fuzz "github.com/google/gofuzz"
 	flag "github.com/spf13/pflag"

--- a/staging/src/k8s.io/apimachinery/pkg/api/apitesting/roundtrip/unstructured.go
+++ b/staging/src/k8s.io/apimachinery/pkg/api/apitesting/roundtrip/unstructured.go
@ -37,7 +37,7 @@ import (
 	jsonserializer "k8s.io/apimachinery/pkg/runtime/serializer/json"
 	"k8s.io/apimachinery/pkg/util/sets"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 )

 // RoundtripToUnstructured verifies the roundtrip faithfulness of all external types in a scheme
--- a/staging/src/k8s.io/apimachinery/pkg/util/diff/diff.go
+++ b/staging/src/k8s.io/apimachinery/pkg/util/diff/diff.go
@ -23,7 +23,7 @@ import (
 	"strings"
 	"text/tabwriter"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	"k8s.io/apimachinery/pkg/util/dump"
 )

--- a/staging/src/k8s.io/apiserver/pkg/admission/testing/helpers.go
+++ b/staging/src/k8s.io/apiserver/pkg/admission/testing/helpers.go
@ -21,7 +21,7 @@ import (
 	"reflect"
 	"testing"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apiserver/pkg/admission"
--- a/staging/src/k8s.io/apiserver/pkg/endpoints/discovery/aggregated/fake.go
+++ b/staging/src/k8s.io/apiserver/pkg/endpoints/discovery/aggregated/fake.go
@ -25,7 +25,7 @@ import (
 	"time"

 	"github.com/emicklei/go-restful/v3"
-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	apidiscoveryv2 "k8s.io/api/apidiscovery/v2"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/wait"
--- a/staging/src/k8s.io/apiserver/pkg/storage/testing/store_tests.go
+++ b/staging/src/k8s.io/apiserver/pkg/storage/testing/store_tests.go
@ -28,7 +28,7 @@ import (
 	"sync"
 	"testing"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/fields"
--- a/staging/src/k8s.io/apiserver/pkg/storage/testing/utils.go
+++ b/staging/src/k8s.io/apiserver/pkg/storage/testing/utils.go
@ -27,7 +27,7 @@ import (
 	"testing"
 	"time"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	"k8s.io/apimachinery/pkg/api/meta"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/fields"
--- a/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_controller.go
+++ b/staging/src/k8s.io/apiserver/pkg/util/flowcontrol/apf_controller.go
@ -28,7 +28,7 @@ import (
 	"sync"
 	"time"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
--- a/staging/src/k8s.io/client-go/util/consistencydetector/data_consistency_detector.go
+++ b/staging/src/k8s.io/client-go/util/consistencydetector/data_consistency_detector.go
@ -22,7 +22,7 @@ import (
 	"sort"
 	"time"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard

 	"k8s.io/apimachinery/pkg/api/meta"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
--- a/staging/src/k8s.io/component-base/config/testing/helpers.go
+++ b/staging/src/k8s.io/component-base/config/testing/helpers.go
@ -23,7 +23,7 @@ import (
 	"path/filepath"
 	"testing"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/runtime/serializer"
--- a/staging/src/k8s.io/component-base/config/testing/roundtrip.go
+++ b/staging/src/k8s.io/component-base/config/testing/roundtrip.go
@ -22,7 +22,7 @@ import (
 	"path/filepath"
 	"testing"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
--- a/staging/src/k8s.io/component-base/logs/api/v1/options.go
+++ b/staging/src/k8s.io/component-base/logs/api/v1/options.go
@ -27,7 +27,7 @@ import (
 	"sync/atomic"
 	"time"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard
 	"github.com/spf13/pflag"

 	"k8s.io/klog/v2"
--- a/staging/src/k8s.io/dynamic-resource-allocation/resourceslice/resourceslicecontroller.go
+++ b/staging/src/k8s.io/dynamic-resource-allocation/resourceslice/resourceslicecontroller.go
@ -24,7 +24,7 @@ import (
 	"sync/atomic"
 	"time"

-	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp" //nolint:depguard

 	v1 "k8s.io/api/core/v1"
 	resourceapi "k8s.io/api/resource/v1beta1"