[#1381] neofs-cli: Move control command to a separate module

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

cmd/neofs-cli/modules/control/snapshot.go

@@ -0,0 +1,73 @@
+package control
+
+import (
+	"github.com/mr-tron/base58"
+	rawclient "github.com/nspcc-dev/neofs-api-go/v2/rpc/client"
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/common"
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
+	"github.com/nspcc-dev/neofs-node/pkg/services/control"
+	"github.com/spf13/cobra"
+)
+
+const (
+	netmapSnapshotJSONFlag = "json"
+)
+
+var snapshotCmd = &cobra.Command{
+	Use:   "netmap-snapshot",
+	Short: "Get network map snapshot",
+	Long:  "Get network map snapshot",
+	Run: func(cmd *cobra.Command, args []string) {
+		pk := getKey(cmd)
+
+		req := new(control.NetmapSnapshotRequest)
+		req.SetBody(new(control.NetmapSnapshotRequest_Body))
+
+		signRequest(cmd, pk, req)
+
+		cli := getClient(cmd, pk)
+
+		var resp *control.NetmapSnapshotResponse
+		var err error
+		err = cli.ExecRaw(func(client *rawclient.Client) error {
+			resp, err = control.NetmapSnapshot(client, req)
+			return err
+		})
+		common.ExitOnErr(cmd, "rpc error: %w", err)
+
+		verifyResponse(cmd, resp.GetSignature(), resp.GetBody())
+
+		isJSON, _ := cmd.Flags().GetBool(netmapSnapshotJSONFlag)
+		prettyPrintNetmap(cmd, resp.GetBody().GetNetmap(), isJSON)
+	},
+}
+
+func initControlSnapshotCmd() {
+	commonflags.InitWithoutRPC(snapshotCmd)
+
+	flags := snapshotCmd.Flags()
+
+	flags.String(controlRPC, controlRPCDefault, controlRPCUsage)
+	flags.Bool(netmapSnapshotJSONFlag, false, "print netmap structure in JSON format")
+}
+
+func prettyPrintNetmap(cmd *cobra.Command, nm *control.Netmap, jsonEncoding bool) {
+	if jsonEncoding {
+		common.PrettyPrintJSON(cmd, nm, "netmap")
+		return
+	}
+
+	cmd.Println("Epoch:", nm.GetEpoch())
+
+	for i, node := range nm.GetNodes() {
+		cmd.Printf("Node %d: %s %s %v\n", i+1,
+			base58.Encode(node.GetPublicKey()),
+			node.GetState(),
+			node.GetAddresses(),
+		)
+
+		for _, attr := range node.GetAttributes() {
+			cmd.Printf("\t%s: %s\n", attr.GetKey(), attr.GetValue())
+		}
+	}
+}