func separateChange(zones map[string]*dns.ManagedZone, change *dns.Change) map[string]*dns.Change {
	changes := make(map[string]*dns.Change)
	zoneNameIDMapper := zoneIDName{}
	for _, z := range zones {
		zoneNameIDMapper[z.Name] = z.DnsName
		changes[z.Name] = &dns.Change{
			Additions: []*dns.ResourceRecordSet{},
			Deletions: []*dns.ResourceRecordSet{},
		}
	}
	for _, a := range change.Additions {
		if zoneName, _ := zoneNameIDMapper.FindZone(ensureTrailingDot(a.Name)); zoneName != "" {
			changes[zoneName].Additions = append(changes[zoneName].Additions, a)
		} else {
			log.Warnf("No matching zone for record addition: %s %s %s %d", a.Name, a.Type, a.Rrdatas, a.Ttl)
		}
	}

	for _, d := range change.Deletions {
		if zoneName, _ := zoneNameIDMapper.FindZone(ensureTrailingDot(d.Name)); zoneName != "" {
			changes[zoneName].Deletions = append(changes[zoneName].Deletions, d)
		} else {
			log.Warnf("No matching zone for record deletion: %s %s %s %d", d.Name, d.Type, d.Rrdatas, d.Ttl)
		}
	}

	// separating a change could lead to empty sub changes, remove them here.
	for zone, change := range changes {
		if len(change.Additions) == 0 && len(change.Deletions) == 0 {
			delete(changes, zone)
		}
	}

	return changes
}
func separateChange(zones map[string]*dns.ManagedZone, change *dns.Change) map[string]*dns.Change {
	changes := make(map[string]*dns.Change)
	zoneNameIDMapper := zoneIDName{}
	for _, z := range zones {
		zoneNameIDMapper[z.Name] = z.DnsName
		changes[z.Name] = &dns.Change{
			Additions: []*dns.ResourceRecordSet{},
			Deletions: []*dns.ResourceRecordSet{},
		}
	}
	for _, a := range change.Additions {
		if zoneName, _ := zoneNameIDMapper.FindZone(ensureTrailingDot(a.Name)); zoneName != "" {
			changes[zoneName].Additions = append(changes[zoneName].Additions, a)
		} else {
			log.Warnf("No matching zone for record addition: %s %s %s %d", a.Name, a.Type, a.Rrdatas, a.Ttl)
		}
	}

	for _, d := range change.Deletions {
		if zoneName, _ := zoneNameIDMapper.FindZone(ensureTrailingDot(d.Name)); zoneName != "" {
			changes[zoneName].Deletions = append(changes[zoneName].Deletions, d)
		} else {
			log.Warnf("No matching zone for record deletion: %s %s %s %d", d.Name, d.Type, d.Rrdatas, d.Ttl)
		}
	}

	
	for zone, change := range changes {
		if len(change.Additions) == 0 && len(change.Deletions) == 0 {
			delete(changes, zone)
		}
	}

	return changes
}
func separateChange ( zones map [ string ] * dns . ManagedZone , change * dns . Change ) map [ string ] * dns . Change { changes := make ( map [ string ] * dns . Change ) zoneNameIDMapper := zoneIDName { } for _ , z := range zones { zoneNameIDMapper [ z . Name ] = z . DnsName changes [ z . Name ] = & dns . Change { Additions : [ ] * dns . ResourceRecordSet { } , Deletions : [ ] * dns . ResourceRecordSet { } , } } for _ , a := range change . Additions { if zoneName , _ := zoneNameIDMapper . FindZone ( ensureTrailingDot ( a . Name ) ) ; zoneName != " " { changes [ zoneName ] . Additions = append ( changes [ zoneName ] . Additions , a ) } else { log . Warnf ( " " , a . Name , a . Type , a . Rrdatas , a . Ttl ) } } for _ , d := range change . Deletions { if zoneName , _ := zoneNameIDMapper . FindZone ( ensureTrailingDot ( d . Name ) ) ; zoneName != " " { changes [ zoneName ] . Deletions = append ( changes [ zoneName ] . Deletions , d ) } else { log . Warnf ( " " , d . Name , d . Type , d . Rrdatas , d . Ttl ) } } // separating a change could lead to empty sub changes, remove them here. for zone , change := range changes { if len ( change . Additions ) == 0 && len ( change . Deletions ) == 0 { delete ( changes , zone ) } } return changes }
// separateChange separates a multi-zone change into a single change per zone.
separateChange separates a multi - zone change into a single change per zone .