feat: avoid importing kubectl deps when using ApplysetApplier

Author: yuwenma

dev/test

@@ -35,7 +35,12 @@ pushd applylib
 CGO_ENABLED=0 go test -count=1 -v ./...
 popd
 
+# default, test direct kubectl applier
 CGO_ENABLED=0 go test -count=1 -v ./...
+# test applyset applier, without kubectl direct and exec dependencies
+CGO_ENABLED=0 go test -tags without_exec_applier,without_direct_applier -count=1 -v ./...
+# test exec kubectl applier, without direct_applier dependencies
+CGO_ENABLED=0 go test -tags without_direct_applier -count=1 -v ./...
 
 pushd examples/guestbook-operator
 CGO_ENABLED=0 go test -count=1 -v ./...

pkg/patterns/declarative/metrics_test.go

@@ -543,9 +543,7 @@ func TestAddIfNotPresent(t *testing.T) {
 						t.Fatalf("failed to get restmapping for parent: %v", err)
 					}
 					options.ParentRef = applyset.NewParentRef(parent, "kdp-test", "default", restmapping)
-					applier := applier.NewApplySetApplier(
-						metav1.PatchOptions{FieldManager: "kdp-test"}, metav1.DeleteOptions{}, applier.ApplysetOptions{})
-
+					applier := applier.DefaultApplier
 					if err := applier.Apply(ctx, options); err != nil {
 						t.Fatalf("failed to apply objects: %v", err)
 					}

pkg/patterns/declarative/pkg/applier/direct.go

@@ -1,3 +1,6 @@
+//go:build !without_exec_applier || !without_direct_applier
+// +build !without_exec_applier !without_direct_applier
+
 package applier
 
 import (
@@ -6,8 +9,6 @@ import (
 	"os"
 	"strings"
 
-	"k8s.io/kubectl/pkg/util/prune"
-
 	"k8s.io/apimachinery/pkg/api/meta"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	utilerrors "k8s.io/apimachinery/pkg/util/errors"
@@ -20,6 +21,7 @@ import (
 	"k8s.io/kubectl/pkg/cmd/apply"
 	cmdDelete "k8s.io/kubectl/pkg/cmd/delete"
 	cmdutil "k8s.io/kubectl/pkg/cmd/util"
+	"k8s.io/kubectl/pkg/util/prune"
 	"sigs.k8s.io/kubebuilder-declarative-pattern/pkg/patterns/declarative/pkg/manifest"
 )
 

pkg/patterns/declarative/pkg/applier/direct_test.go

@@ -1,3 +1,6 @@
+//go:build !without_exec_applier || !without_direct_applier
+// +build !without_exec_applier !without_direct_applier
+
 /*
 Copyright 2022 The Kubernetes Authors.
 

pkg/patterns/declarative/pkg/applier/exec.go

@@ -1,3 +1,6 @@
+//go:build !without_exec_applier
+// +build !without_exec_applier
+
 /*
 Copyright 2018 The Kubernetes Authors.
 

pkg/patterns/declarative/pkg/applier/exec_test.go

@@ -1,3 +1,6 @@
+//go:build !without_exec_applier
+// +build !without_exec_applier
+
 /*
 Copyright 2019 The Kubernetes Authors.
 

pkg/patterns/declarative/pkg/applier/global.go

@@ -0,0 +1,6 @@
+//go:build !without_exec_applier || !without_direct_applier
+// +build !without_exec_applier !without_direct_applier
+
+package applier
+
+var DefaultApplier = NewDirectApplier()

pkg/patterns/declarative/pkg/applier/global_without_kubectl.go

@@ -0,0 +1,10 @@
+//go:build without_exec_applier && without_direct_applier
+// +build without_exec_applier,without_direct_applier
+
+package applier
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+var DefaultApplier = NewApplySetApplier(metav1.PatchOptions{}, metav1.DeleteOptions{}, ApplysetOptions{})

pkg/patterns/declarative/reconciler.go

@@ -95,7 +95,7 @@ func (e *ErrorResult) Error() string {
 }
 
 // For mocking
-var defaultApplier = applier.NewDirectApplier()
+var defaultApplier = applier.DefaultApplier
 
 func (r *Reconciler) Init(mgr manager.Manager, prototype DeclarativeObject, opts ...ReconcilerOption) error {
 	r.prototype = prototype

pkg/test/testreconciler/simpletest/controller_test.go

@@ -4,11 +4,9 @@ import (
 	"context"
 	"net/http"
 	"path/filepath"
-	"testing"
 	"time"
 
 	"k8s.io/apimachinery/pkg/api/meta"
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/client-go/rest"
@@ -19,7 +17,6 @@ import (
 
 	"sigs.k8s.io/kubebuilder-declarative-pattern/mockkubeapiserver"
 	"sigs.k8s.io/kubebuilder-declarative-pattern/pkg/patterns/addon/pkg/loaders"
-	"sigs.k8s.io/kubebuilder-declarative-pattern/pkg/patterns/addon/pkg/status"
 	"sigs.k8s.io/kubebuilder-declarative-pattern/pkg/patterns/declarative"
 	"sigs.k8s.io/kubebuilder-declarative-pattern/pkg/patterns/declarative/pkg/applier"
 	"sigs.k8s.io/kubebuilder-declarative-pattern/pkg/test/httprecorder"
@@ -28,33 +25,6 @@ import (
 	api "sigs.k8s.io/kubebuilder-declarative-pattern/pkg/test/testreconciler/simpletest/v1alpha1"
 )
 
-func TestSimpleReconciler(t *testing.T) {
-	appliers := []struct {
-		Key     string
-		Applier applier.Applier
-		Status  declarative.Status
-	}{
-		{
-			Key:     "direct",
-			Applier: applier.NewDirectApplier(),
-			Status:  status.NewBasic(nil),
-		},
-		{
-			Key: "ssa",
-			Applier: applier.NewApplySetApplier(
-				metav1.PatchOptions{FieldManager: "kdp-test"}, metav1.DeleteOptions{}, applier.ApplysetOptions{}),
-			Status: status.NewKstatusCheck(nil, nil),
-		},
-	}
-	for _, applier := range appliers {
-		t.Run(applier.Key, func(t *testing.T) {
-			testharness.RunGoldenTests(t, "testdata/reconcile/"+applier.Key+"/", func(h *testharness.Harness, testdir string) {
-				testSimpleReconciler(h, testdir, applier.Applier, applier.Status)
-			})
-		})
-	}
-}
-
 func testSimpleReconciler(h *testharness.Harness, testdir string, applier applier.Applier, status declarative.Status) {
 	ctx := context.Background()