[#1331] tree: Add order flag to tree get-subtree

Added `--ordered` flag to sort output by ascending FileName.

Signed-off-by: Ekaterina Lebedeva <ekaterina.lebedeva@yadro.com>

cmd/frostfs-cli/modules/container/list.go

@@ -86,8 +86,6 @@ var listContainersCmd = &cobra.Command{
 			if flagVarListPrintAttr {
 				cnr.IterateAttributes(func(key, val string) {
 					if !strings.HasPrefix(key, container.SysAttributePrefix) && !strings.HasPrefix(key, container.SysAttributePrefixNeoFS) {
-						// FIXME(@cthulhu-rider): https://git.frostfs.info/TrueCloudLab/frostfs-sdk-go/issues/97
-						//	Use dedicated method to skip system attributes.
 						cmd.Printf("  %s: %s\n", key, val)
 					}
 				})

cmd/frostfs-cli/modules/tree/root.go

@@ -49,6 +49,7 @@ const (
 	heightFlagKey = "height"
 	countFlagKey  = "count"
 	depthFlagKey  = "depth"
+	orderFlagKey  = "ordered"
 )
 
 func initCTID(cmd *cobra.Command) {

cmd/frostfs-cli/modules/tree/subtree.go

@@ -30,6 +30,7 @@ func initGetSubtreeCmd() {
 	ff := getSubtreeCmd.Flags()
 	ff.Uint64(rootIDFlagKey, 0, "Root ID to traverse from.")
 	ff.Uint32(depthFlagKey, 10, "Traversal depth.")
+	ff.Bool(orderFlagKey, false, "Sort output by ascending FileName.")
 
 	_ = getSubtreeCmd.MarkFlagRequired(commonflags.CIDFlag)
 	_ = getSubtreeCmd.MarkFlagRequired(treeIDFlagKey)
@@ -59,6 +60,13 @@ func getSubTree(cmd *cobra.Command, _ []string) {
 
 	depth, _ := cmd.Flags().GetUint32(depthFlagKey)
 
+	order, _ := cmd.Flags().GetBool(orderFlagKey)
+
+	bodyOrder := tree.GetSubTreeRequest_Body_Order_None
+	if order {
+		bodyOrder = tree.GetSubTreeRequest_Body_Order_Asc
+	}
+
 	var bt []byte
 	if t := common.ReadBearerToken(cmd, bearerFlagKey); t != nil {
 		bt = t.Marshal()
@@ -71,6 +79,9 @@ func getSubTree(cmd *cobra.Command, _ []string) {
 			RootId:      []uint64{rid},
 			Depth:       depth,
 			BearerToken: bt,
+			OrderBy: &tree.GetSubTreeRequest_Body_Order{
+				Direction: bodyOrder,
+			},
 		},
 	}