if len(toMerge) == 0 {
		return policy.Policy{}, errNoSuchPolicy
	}
	return policy.MergePolicies(toMerge...), nil
}

// GetPolicyDoc - gets the policy doc which has the policy and some metadata.
// Exactly one policy must be specified here.
func (store *IAMStoreSys) GetPolicyDoc(name string) (r PolicyDoc, err error) {
	name = strings.TrimSpace(name)
	if name == "" {
		return r, errInvalidArgument
	}

func (sys *IAMSys) InfoPolicy(policyName string) (*madmin.PolicyInfo, error) {
	if !sys.Initialized() {
		return nil, errServerNotInitialized
	}

	d, err := sys.store.GetPolicyDoc(policyName)
	if err != nil {
		return nil, err
	}

	pdata, err := json.Marshal(d.Policy)
	if err != nil {
		return nil, err
	}

	return &madmin.PolicyInfo{
		PolicyName: policyName,

	var err error
	// skip overwrite of local update if peer sent stale info
	if !updatedAt.IsZero() {
		if p, err := globalIAMSys.store.GetPolicyDoc(policyName); err == nil && p.UpdateDate.After(updatedAt) {
			return nil
		}
	}
	if p == nil {
		err = globalIAMSys.DeletePolicy(ctx, policyName, true)
	} else {