Merge pull request #65 from utilitywarehouse/as-metrics

clear metrics when repo is removed

Author: asiyani

repository/metrics.go

@@ -95,3 +95,23 @@ func updateMirrorLatency(repo string, start time.Time) {
 	}
 	mirrorLatency.WithLabelValues(repo).Observe(time.Since(start).Seconds())
 }
+
+// deleteMetrics will remove all metrics corresponding to given repository
+func deleteMetrics(repo string) {
+	// if metrics not enabled return
+	if lastMirrorTimestamp == nil || mirrorCount == nil || mirrorLatency == nil {
+		return
+	}
+	lastMirrorTimestamp.Delete(prometheus.Labels{
+		"repo": repo,
+	})
+	mirrorCount.Delete(prometheus.Labels{
+		"repo": repo, "success": "true",
+	})
+	mirrorCount.Delete(prometheus.Labels{
+		"repo": repo, "success": "false",
+	})
+	mirrorLatency.Delete(prometheus.Labels{
+		"repo": repo,
+	})
+}

repository/repository.go

@@ -489,6 +489,7 @@ func (r *Repository) QueueMirrorRun() {
 func (r *Repository) StopLoop() {
 	r.stop <- true
 	<-r.stopped
+	deleteMetrics(r.gitURL.Repo)
 	r.log.Info("repository mirror loop stopped")
 }