helmrepo: Make NewArtifact event human friendly

Inform index size and repo instead of a revision.

Signed-off-by: Sunny <darkowlzz@protonmail.com>

controllers/helmrepository_controller.go

@@ -24,6 +24,7 @@ import (
 	"os"
 	"time"
 
+	"github.com/docker/go-units"
 	helmgetter "helm.sh/helm/v3/pkg/getter"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -425,10 +426,20 @@ func (r *HelmRepositoryReconciler) reconcileArtifact(ctx context.Context, obj *s
 		}
 	}
 
+	// Calculate the artifact size to be included in the NewArtifact event.
+	fi, err := os.Stat(chartRepo.CachePath)
+	if err != nil {
+		return sreconcile.ResultEmpty, &serror.Event{
+			Err:    fmt.Errorf("unable to read the artifact: %w", err),
+			Reason: sourcev1.StorageOperationFailedReason,
+		}
+	}
+	size := units.HumanSize(float64(fi.Size()))
+
 	r.AnnotatedEventf(obj, map[string]string{
 		"revision": artifact.Revision,
 		"checksum": artifact.Checksum,
-	}, corev1.EventTypeNormal, "NewArtifact", "stored artifact for revision '%s'", artifact.Revision)
+	}, corev1.EventTypeNormal, "NewArtifact", "fetched index of size %s from '%s'", size, chartRepo.URL)
 
 	// Record it on the object.
 	obj.Status.Artifact = artifact.DeepCopy()

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/ProtonMail/go-crypto v0.0.0-20210428141323-04723f9f07d7
 	github.com/cyphar/filepath-securejoin v0.2.2
 	github.com/darkowlzz/controller-check v0.0.0-20220119215126-648356cef22c
+	github.com/docker/go-units v0.4.0
 	github.com/elazarl/goproxy v0.0.0-20211114080932-d06c3be7c11b
 	github.com/fluxcd/pkg/apis/meta v0.12.0
 	github.com/fluxcd/pkg/gittestserver v0.5.0
@@ -72,7 +73,6 @@ require (
 	github.com/docker/docker-credential-helpers v0.6.3 // indirect
 	github.com/docker/go-connections v0.4.0 // indirect
 	github.com/docker/go-metrics v0.0.1 // indirect
-	github.com/docker/go-units v0.4.0 // indirect
 	github.com/docker/libtrust v0.0.0-20160708172513-aabc10ec26b7 // indirect
 	github.com/dustin/go-humanize v1.0.0 // indirect
 	github.com/emirpasic/gods v1.12.0 // indirect