[#1030] adm: Add command `morph ape list-targets`

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

cmd/frostfs-adm/internal/modules/morph/ape/ape.go

@@ -82,6 +82,15 @@ var (
 		},
 		Run: getAdmin,
 	}
+
+	listTargetsCmd = &cobra.Command{
+		Use:   "list-targets",
+		Short: "List targets",
+		PreRun: func(cmd *cobra.Command, _ []string) {
+			_ = viper.BindPFlag(commonflags.EndpointFlag, cmd.Flags().Lookup(commonflags.EndpointFlag))
+		},
+		Run: listTargets,
+	}
 )
 
 func initAddRuleChainCmd() {
@@ -146,6 +155,14 @@ func initGetAdminCmd() {
 	getAdminCmd.Flags().StringP(commonflags.EndpointFlag, commonflags.EndpointFlagShort, "", commonflags.EndpointFlagDesc)
 }
 
+func initListTargetsCmd() {
+	Cmd.AddCommand(listTargetsCmd)
+
+	listTargetsCmd.Flags().StringP(commonflags.EndpointFlag, commonflags.EndpointFlagShort, "", commonflags.EndpointFlagDesc)
+	listTargetsCmd.Flags().StringP(targetTypeFlag, "t", "", targetTypeDesc)
+	_ = listTargetsCmd.MarkFlagRequired(targetTypeFlag)
+}
+
 func addRuleChain(cmd *cobra.Command, _ []string) {
 	chain := parseChain(cmd)
 	target := parseTarget(cmd)
@@ -215,6 +232,29 @@ func getAdmin(cmd *cobra.Command, _ []string) {
 	cmd.Println(addr.StringLE())
 }
 
+func listTargets(cmd *cobra.Command, _ []string) {
+	typ, err := parseTargetType(cmd)
+	commonCmd.ExitOnErr(cmd, "parse target type error: %w", err)
+	pci, inv := newPolicyContractReaderInterface(cmd)
+
+	sid, it, err := pci.ListTargetsIterator(typ)
+	commonCmd.ExitOnErr(cmd, "list targets error: %w", err)
+	items, err := inv.TraverseIterator(sid, &it, 0)
+	for err == nil && len(items) != 0 {
+		for _, item := range items {
+			bts, err := item.TryBytes()
+			commonCmd.ExitOnErr(cmd, "list targets error: %w", err)
+			if len(bts) == 0 {
+				cmd.Println("(no name)")
+			} else {
+				cmd.Println(string(bts))
+			}
+		}
+		items, err = inv.TraverseIterator(sid, &it, 0)
+		commonCmd.ExitOnErr(cmd, "unable to list targets: %w", err)
+	}
+}
+
 func prettyJSONFormat(cmd *cobra.Command, chains []*apechain.Chain) {
 	wr := bytes.NewBufferString("")
 	data, err := json.Marshal(chains)

cmd/frostfs-adm/internal/modules/morph/ape/ape_util.go

@@ -36,24 +36,27 @@ var (
 )
 
 func parseTarget(cmd *cobra.Command) policyengine.Target {
-	var targetType policyengine.TargetType
-	typ, _ := cmd.Flags().GetString(targetTypeFlag)
-	switch typ {
-	case namespaceTarget:
-		targetType = policyengine.Namespace
-	case containerTarget:
-		targetType = policyengine.Container
-	default:
-		commonCmd.ExitOnErr(cmd, "read target type error: %w", errUnknownTargetType)
-	}
 	name, _ := cmd.Flags().GetString(targetNameFlag)
+	typ, err := parseTargetType(cmd)
+	commonCmd.ExitOnErr(cmd, "read target type error: %w", err)
 
 	return policyengine.Target{
 		Name: name,
-		Type: targetType,
+		Type: typ,
 	}
 }
 
+func parseTargetType(cmd *cobra.Command) (policyengine.TargetType, error) {
+	typ, _ := cmd.Flags().GetString(targetTypeFlag)
+	switch typ {
+	case namespaceTarget:
+		return policyengine.Namespace, nil
+	case containerTarget:
+		return policyengine.Container, nil
+	}
+	return -1, errUnknownTargetType
+}
+
 func parseChainID(cmd *cobra.Command) apechain.ID {
 	chainID, _ := cmd.Flags().GetString(chainIDFlag)
 	if chainID == "" {

cmd/frostfs-adm/internal/modules/morph/ape/root.go

@@ -13,4 +13,5 @@ func init() {
 	initListRuleChainsCmd()
 	initSetAdminCmd()
 	initGetAdminCmd()
+	initListTargetsCmd()
 }