Update source-watcher.md with minor changes

- Remove deprecated io/outil function calls
- Update documented Reconcile function with minor changes

Signed-off-by: Sven Nebel <nebel.sven@gmail.com>

content/en/flux/gitops-toolkit/source-watcher.md

@@ -138,8 +138,9 @@ type GitRepositoryWatcher struct {
 
 // +kubebuilder:rbac:groups=source.toolkit.fluxcd.io,resources=gitrepositories,verbs=get;list;watch
 // +kubebuilder:rbac:groups=source.toolkit.fluxcd.io,resources=gitrepositories/status,verbs=get
+
 func (r *GitRepositoryWatcher) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
-	log := logr.FromContext(ctx)
+	log := ctrl.LoggerFrom(ctx)
 
 	// get source object
 	var repository sourcev1.GitRepository
@@ -150,7 +151,7 @@ func (r *GitRepositoryWatcher) Reconcile(ctx context.Context, req ctrl.Request)
 	log.Info("New revision detected", "revision", repository.Status.Artifact.Revision)
 
 	// create tmp dir
-	tmpDir, err := ioutil.TempDir("", repository.Name)
+	tmpDir, err := os.MkdirTemp("", repository.Name)
 	if err != nil {
 		return ctrl.Result{}, fmt.Errorf("failed to create temp dir, error: %w", err)
 	}
@@ -165,7 +166,7 @@ func (r *GitRepositoryWatcher) Reconcile(ctx context.Context, req ctrl.Request)
 	log.Info(summary)
 
 	// list artifact content
-	files, err := ioutil.ReadDir(tmpDir)
+	files, err := os.ReadDir(tmpDir)
 	if err != nil {
 		return ctrl.Result{}, fmt.Errorf("failed to list files, error: %w", err)
 	}