feat: Add golangci-lint linters - imports

.golangci.yaml

@@ -0,0 +1,126 @@
+# Documentation reference https://github.com/golangci/golangci-lint/blob/v1.55.2/.golangci.reference.yml
+run:
+  skip-dirs-use-default: false
+  modules-download-mode: readonly
+  allow-parallel-runners: false
+
+output:
+  format: colored-line-number
+  print-issued-lines: true
+  print-linter-name: true
+  uniq-by-line: true
+  sort-results: true
+
+linters-settings:
+  dogsled:
+    max-blank-identifiers: 2
+  errcheck:
+    check-type-assertions: true
+    check-blank: true
+  gci:
+    sections:
+      - standard
+      - default
+      - prefix(github.com/openshift/oadp-operator)
+  goconst:
+    min-len: 3
+    min-occurrences: 5
+  gofmt:
+    simplify: true
+  goheader:
+    # copy from ./hack/boilerplate.go.txt
+    template: |-
+      Copyright 2021.
+
+      Licensed under the Apache License, Version 2.0 (the "License");
+      you may not use this file except in compliance with the License.
+      You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+      Unless required by applicable law or agreed to in writing, software
+      distributed under the License is distributed on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+      See the License for the specific language governing permissions and
+      limitations under the License.
+  govet:
+    enable-all: true
+  misspell:
+    locale: US
+  nakedret:
+    max-func-lines: 30
+  nolintlint:
+    allow-unused: false
+    allow-no-explanation: []
+    require-explanation: true
+    require-specific: true
+  revive:
+    # TODO enable!
+    # enable-all-rules: true
+    rules:
+      - name: line-length-limit
+        disabled: true
+      # TODO delete after
+      - name: blank-imports
+      - name: dot-imports
+      - name: duplicated-imports
+      - name: import-alias-naming
+      - name: import-shadowing
+      - name: redundant-import-alias
+  unparam:
+    check-exported: true
+
+linters:
+  disable-all: true
+  # TODO enable commented ones
+  enable:
+    - asasalint
+    - asciicheck
+    - bidichk
+    # - bodyclose
+    - dogsled
+    # - dupword
+    # - durationcheck
+    # - errcheck
+    - errchkjson
+    - exportloopref
+    - gci
+    # - ginkgolinter
+    # - goconst
+    - gofmt
+    # - goheader
+    - goprintffuncname
+    # - gosec
+    # - gosimple
+    # - govet
+    # - ineffassign
+    # - misspell
+    - nakedret
+    # - nilerr
+    # - noctx
+    - nolintlint
+    - nosprintfhostport
+    - revive
+    # - staticcheck
+    # - stylecheck
+    # - unconvert
+    # - unparam
+    # - unused
+    - usestdlibvars
+  fast: false
+
+issues:
+  exclude-use-default: false
+  exclude-rules:
+    - linters:
+        - revive
+      text: "^struct-tag: unknown option 'inline' in JSON tag$"
+    - linters:
+        - stylecheck
+      text: "ST1000:|ST1020:|ST1021:|ST1022:"
+  max-issues-per-linter: 0
+  max-same-issues: 0
+
+severity:
+  default-severity: error
+  case-sensitive: false

Makefile

@@ -181,18 +181,12 @@ envtest: $(ENVTEST)
 # to login to registry cluster follow https://docs.ci.openshift.org/docs/how-tos/use-registries-in-build-farm/#how-do-i-log-in-to-pull-images-that-require-authentication
 # If bin/ contains binaries of different arch, you may remove them so the container can install their arch.
 .PHONY: test
-test: vet envtest ## Run Go linter and unit tests and check Go code format and if api and bundle folders are up to date.
+test: vet envtest ## Run unit tests; run Go linters checks; and check if api and bundle folders are up to date
 	KUBEBUILDER_ASSETS="$(ENVTESTPATH)" go test -mod=mod $(shell go list -mod=mod ./... | grep -v /tests/e2e) -coverprofile cover.out
-	@make fmt-isupdated
+	@make lint
 	@make api-isupdated
 	@make bundle-isupdated
 
-.PHONY: fmt-isupdated
-fmt-isupdated: TEMP:= $(shell mktemp -d)
-fmt-isupdated:
-	@cp -r ./ $(TEMP) && cd $(TEMP) && make fmt && cd - && diff -ruN . $(TEMP)/ && echo "Go code is formatted" || (echo "Go code is not formatted, run 'make fmt' to format" && exit 1)
-	@chmod -R 777 $(TEMP) && rm -rf $(TEMP)
-
 .PHONY: api-isupdated
 api-isupdated: TEMP:= $(shell mktemp -d)
 api-isupdated:
@@ -536,3 +530,17 @@ test-e2e-cleanup: login-required
 	$(OC_CLI) delete restore -n $(OADP_TEST_NAMESPACE) --all --wait=false
 	for restore_name in $(shell $(OC_CLI) get restore -n $(OADP_TEST_NAMESPACE) -o name);do $(OC_CLI) patch "$$restore_name" -n $(OADP_TEST_NAMESPACE) -p '{"metadata":{"finalizers":null}}' --type=merge;done
 	rm -rf $(SETTINGS_TMP)
+
+GOLANGCI_LINT = $(shell pwd)/bin/golangci-lint
+
+.PHONY: golangci-lint
+golangci-lint: ## Download golangci-lint locally if necessary.
+	$(call go-install-tool,$(GOLANGCI_LINT),github.com/golangci/golangci-lint/cmd/[email protected])
+
+.PHONY: lint
+lint: golangci-lint ## Run Go linters checks against all project's Go files.
+	$(GOLANGCI_LINT) run
+
+.PHONY: lint-fix
+lint-fix: golangci-lint ## Fix Go linters issues.
+	$(GOLANGCI_LINT) run --fix

api/v1alpha1/oadp_types.go

@@ -19,11 +19,12 @@ package v1alpha1
 import (
 	"time"
 
-	"github.com/openshift/oadp-operator/pkg/common"
-	"github.com/openshift/oadp-operator/pkg/velero/server"
 	velero "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+
+	"github.com/openshift/oadp-operator/pkg/common"
+	"github.com/openshift/oadp-operator/pkg/velero/server"
 )
 
 // Conditions

controllers/bsl.go

@@ -5,14 +5,15 @@ import (
 	"fmt"
 
 	"github.com/go-logr/logr"
-	oadpv1alpha1 "github.com/openshift/oadp-operator/api/v1alpha1"
-	"github.com/openshift/oadp-operator/pkg/common"
-	"github.com/openshift/oadp-operator/pkg/storage/aws"
 	velerov1 "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
+
+	oadpv1alpha1 "github.com/openshift/oadp-operator/api/v1alpha1"
+	"github.com/openshift/oadp-operator/pkg/common"
+	"github.com/openshift/oadp-operator/pkg/storage/aws"
 )
 
 func (r *DPAReconciler) ValidateBackupStorageLocations(dpa oadpv1alpha1.DataProtectionApplication) (bool, error) {

controllers/bsl_test.go

@@ -6,13 +6,10 @@ import (
 	"reflect"
 	"testing"
 
-	corev1 "k8s.io/api/core/v1"
-	v1 "k8s.io/api/core/v1"
-
 	"github.com/go-logr/logr"
 	"github.com/google/go-cmp/cmp"
-	oadpv1alpha1 "github.com/openshift/oadp-operator/api/v1alpha1"
 	velerov1 "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
+	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/types"
@@ -21,6 +18,8 @@ import (
 	"k8s.io/utils/pointer"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/client/fake"
+
+	oadpv1alpha1 "github.com/openshift/oadp-operator/api/v1alpha1"
 )
 
 // A bucket that region can be automatically discovered
@@ -1636,7 +1635,7 @@ func TestDPAReconciler_ensureBackupLocationHasVeleroOrCloudStorage(t *testing.T)
 								Provider: "aws",
 							},
 							CloudStorage: &oadpv1alpha1.CloudStorageLocation{
-								CloudStorageRef: v1.LocalObjectReference{
+								CloudStorageRef: corev1.LocalObjectReference{
 									Name: "foo",
 								},
 							},
@@ -1903,8 +1902,8 @@ func TestDPAReconciler_ReconcileBackupStorageLocations(t *testing.T) {
 			Namespace: "test-ns",
 		},
 		Spec: oadpv1alpha1.CloudStorageSpec{
-			CreationSecret: v1.SecretKeySelector{
-				LocalObjectReference: v1.LocalObjectReference{
+			CreationSecret: corev1.SecretKeySelector{
+				LocalObjectReference: corev1.LocalObjectReference{
 					Name: "cloud-credentials",
 				},
 				Key: "credentials",
@@ -1955,11 +1954,11 @@ func TestDPAReconciler_ReconcileBackupStorageLocations(t *testing.T) {
 					BackupLocations: []oadpv1alpha1.BackupLocation{
 						{
 							CloudStorage: &oadpv1alpha1.CloudStorageLocation{
-								CloudStorageRef: v1.LocalObjectReference{
+								CloudStorageRef: corev1.LocalObjectReference{
 									Name: "test-cs",
 								},
-								Credential: &v1.SecretKeySelector{
-									LocalObjectReference: v1.LocalObjectReference{
+								Credential: &corev1.SecretKeySelector{
+									LocalObjectReference: corev1.LocalObjectReference{
 										Name: "cloud-credentials",
 									},
 									Key: "credentials",
@@ -2054,8 +2053,8 @@ func TestDPAReconciler_ReconcileBackupStorageLocations(t *testing.T) {
 											Prefix: "test-prefix",
 										},
 									},
-									Credential: &v1.SecretKeySelector{
-										LocalObjectReference: v1.LocalObjectReference{
+									Credential: &corev1.SecretKeySelector{
+										LocalObjectReference: corev1.LocalObjectReference{
 											Name: "cloud-credentials",
 										},
 										Key: "credentials",
@@ -2087,8 +2086,8 @@ func TestDPAReconciler_ReconcileBackupStorageLocations(t *testing.T) {
 							Prefix: "test-prefix",
 						},
 					},
-					Credential: &v1.SecretKeySelector{
-						LocalObjectReference: v1.LocalObjectReference{
+					Credential: &corev1.SecretKeySelector{
+						LocalObjectReference: corev1.LocalObjectReference{
 							Name: "cloud-credentials",
 						},
 						Key: "credentials",
@@ -2108,11 +2107,11 @@ func TestDPAReconciler_ReconcileBackupStorageLocations(t *testing.T) {
 						BackupLocations: []oadpv1alpha1.BackupLocation{
 							{
 								CloudStorage: &oadpv1alpha1.CloudStorageLocation{
-									CloudStorageRef: v1.LocalObjectReference{
+									CloudStorageRef: corev1.LocalObjectReference{
 										Name: "test-cs",
 									},
-									Credential: &v1.SecretKeySelector{
-										LocalObjectReference: v1.LocalObjectReference{
+									Credential: &corev1.SecretKeySelector{
+										LocalObjectReference: corev1.LocalObjectReference{
 											Name: "cloud-credentials",
 										},
 										Key: "credentials",
@@ -2137,8 +2136,8 @@ func TestDPAReconciler_ReconcileBackupStorageLocations(t *testing.T) {
 					},
 					Spec: oadpv1alpha1.CloudStorageSpec{
 						Provider: "aws",
-						CreationSecret: v1.SecretKeySelector{
-							LocalObjectReference: v1.LocalObjectReference{
+						CreationSecret: corev1.SecretKeySelector{
+							LocalObjectReference: corev1.LocalObjectReference{
 								Name: "cloud-credentials",
 							},
 							Key: "credentials",
@@ -2245,11 +2244,11 @@ func TestDPAReconciler_ReconcileBackupStorageLocations(t *testing.T) {
 						BackupLocations: []oadpv1alpha1.BackupLocation{
 							{
 								CloudStorage: &oadpv1alpha1.CloudStorageLocation{
-									CloudStorageRef: v1.LocalObjectReference{
+									CloudStorageRef: corev1.LocalObjectReference{
 										Name: "test-cs",
 									},
-									Credential: &v1.SecretKeySelector{
-										LocalObjectReference: v1.LocalObjectReference{
+									Credential: &corev1.SecretKeySelector{
+										LocalObjectReference: corev1.LocalObjectReference{
 											Name: "cloud-credentials",
 										},
 										Key: "credentials",
@@ -2275,8 +2274,8 @@ func TestDPAReconciler_ReconcileBackupStorageLocations(t *testing.T) {
 					},
 					Spec: oadpv1alpha1.CloudStorageSpec{
 						Provider: "aws",
-						CreationSecret: v1.SecretKeySelector{
-							LocalObjectReference: v1.LocalObjectReference{
+						CreationSecret: corev1.SecretKeySelector{
+							LocalObjectReference: corev1.LocalObjectReference{
 								Name: "cloud-credentials",
 							},
 							Key: "credentials",