Upgrade to Badger v4

go.mod

@@ -7,7 +7,7 @@ replace github.com/fluxcd/image-reflector-controller/api => ./api
 require (
 	github.com/AdaLogics/go-fuzz-headers v0.0.0-20240806141605-e8a1dd7889d6
 	github.com/Masterminds/semver/v3 v3.4.0
-	github.com/dgraph-io/badger/v3 v3.2103.5
+	github.com/dgraph-io/badger/v4 v4.8.0
 	github.com/elazarl/goproxy v1.7.2
 	github.com/fluxcd/image-reflector-controller/api v0.35.2
 	github.com/fluxcd/pkg/apis/acl v0.9.0
@@ -62,12 +62,11 @@ require (
 	github.com/aws/smithy-go v1.23.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/blang/semver/v4 v4.0.0 // indirect
-	github.com/cespare/xxhash v1.1.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/chai2010/gettext-go v1.0.3 // indirect
 	github.com/containerd/stargz-snapshotter/estargz v0.16.3 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/dgraph-io/ristretto v0.2.0 // indirect
+	github.com/dgraph-io/ristretto/v2 v2.2.0 // indirect
 	github.com/docker/cli v28.2.2+incompatible // indirect
 	github.com/docker/distribution v2.8.3+incompatible // indirect
 	github.com/docker/docker-credential-helpers v0.9.3 // indirect
@@ -88,9 +87,6 @@ require (
 	github.com/go-openapi/swag v0.23.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang-jwt/jwt/v5 v5.3.0 // indirect
-	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/golang/snappy v1.0.0 // indirect
 	github.com/google/btree v1.1.3 // indirect
 	github.com/google/flatbuffers v25.2.10+incompatible // indirect
 	github.com/google/gnostic-models v0.7.0 // indirect
@@ -138,7 +134,6 @@ require (
 	github.com/vbatts/tar-split v0.12.1 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/xlab/treeprint v1.2.0 // indirect
-	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0 // indirect
 	go.opentelemetry.io/otel v1.38.0 // indirect

internal/controller/controllers_fuzzer_test.go

@@ -35,7 +35,7 @@ import (
 
 	"go.uber.org/zap/zapcore"
 
-	"github.com/dgraph-io/badger/v3"
+	"github.com/dgraph-io/badger/v4"
 	. "github.com/onsi/ginkgo"
 
 	"k8s.io/apimachinery/pkg/types"

internal/controller/suite_test.go

@@ -24,7 +24,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/dgraph-io/badger/v3"
+	"github.com/dgraph-io/badger/v4"
 	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
 	"k8s.io/client-go/kubernetes/scheme"
 	"k8s.io/client-go/tools/record"

internal/database/badger.go

@@ -20,7 +20,7 @@ import (
 	"fmt"
 	"hash/adler32"
 
-	"github.com/dgraph-io/badger/v3"
+	"github.com/dgraph-io/badger/v4"
 )
 
 const tagsPrefix = "tags"

internal/database/badger_gc.go

@@ -20,7 +20,7 @@ import (
 	"errors"
 	"time"
 
-	"github.com/dgraph-io/badger/v3"
+	"github.com/dgraph-io/badger/v4"
 	"github.com/go-logr/logr"
 	ctrl "sigs.k8s.io/controller-runtime"
 )

internal/database/badger_gc_test.go

@@ -21,7 +21,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/dgraph-io/badger/v3"
+	"github.com/dgraph-io/badger/v4"
 	"github.com/go-logr/logr"
 	"github.com/go-logr/logr/testr"
 )

internal/database/badger_test.go

@@ -21,7 +21,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/dgraph-io/badger/v3"
+	"github.com/dgraph-io/badger/v4"
 )
 
 const testRepo = "testing/testing"

main.go

@@ -21,7 +21,7 @@ import (
 	"os"
 	"time"
 
-	"github.com/dgraph-io/badger/v3"
+	"github.com/dgraph-io/badger/v4"
 	flag "github.com/spf13/pflag"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -233,7 +233,11 @@ func main() {
 	}
 
 	if badgerGC != nil {
-		mgr.Add(badgerGC)
+		err := mgr.Add(badgerGC)
+		if err != nil {
+			setupLog.Error(err, "unable to add GC to manager")
+			os.Exit(1)
+		}
 	}
 
 	probes.SetupChecks(mgr, setupLog)