func findCluster()

in pkg/gcp/gcp-kubeconfig.go [369:424]

• 52 lines of code
• 22 McCabe index (conditional complexity)

func findCluster(kr *k8s.K8S, cll []*Cluster, myRegion string, cl *Cluster) *Cluster {
	if kr.Mesh.ClusterName != "" {
		for _, c := range cll {
			if myRegion != "" && !strings.HasPrefix(c.ClusterLocation, myRegion) {
				continue
			}
			if c.ClusterName == kr.Mesh.ClusterName {
				cl = c
				break
			}
		}
		if cl == nil {
			for _, c := range cll {
				if c.ClusterName == kr.Mesh.ClusterName {
					cl = c
					break
				}
			}
		}
	}

	// First attempt to find a cluster in same region, with the name prefix istio (TODO: label or other way to identify
	// preferred config clusters)
	if cl == nil {
		for _, c := range cll {
			if myRegion != "" && !strings.HasPrefix(c.ClusterLocation, myRegion) {
				continue
			}
			if strings.HasPrefix(c.ClusterName, "istio") {
				cl = c
				break
			}
		}
	}
	if cl == nil {
		for _, c := range cll {
			if myRegion != "" && !strings.HasPrefix(c.ClusterLocation, myRegion) {
				continue
			}
			cl = c
			break
		}
	}
	if cl == nil {
		for _, c := range cll {
			if strings.HasPrefix(c.ClusterName, "istio") {
				cl = c
			}
		}
	}
	// Nothing in same region, pick the first
	if cl == nil {
		cl = cll[0]
	}
	return cl
}