[#1384] neofs-cli: move storagegroup command to a separate package

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

cmd/neofs-cli/modules/storagegroup/get.go

@@ -0,0 +1,82 @@
+package storagegroup
+
+import (
+	"bytes"
+
+	internalclient "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/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/cmd/neofs-cli/internal/key"
+	objectCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/object"
+	sessionCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/session"
+	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
+	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
+	storagegroupAPI "github.com/nspcc-dev/neofs-sdk-go/storagegroup"
+	"github.com/spf13/cobra"
+)
+
+const (
+	sgIDFlag  = "id"
+	sgRawFlag = "raw"
+)
+
+var sgID string
+
+var sgGetCmd = &cobra.Command{
+	Use:   "get",
+	Short: "Get storage group from NeoFS",
+	Long:  "Get storage group from NeoFS",
+	Run:   getSG,
+}
+
+func initSGGetCmd() {
+	commonflags.Init(sgGetCmd)
+
+	flags := sgGetCmd.Flags()
+
+	flags.String("cid", "", "Container ID")
+	_ = sgGetCmd.MarkFlagRequired("cid")
+
+	flags.StringVarP(&sgID, sgIDFlag, "", "", "storage group identifier")
+	_ = sgGetCmd.MarkFlagRequired(sgIDFlag)
+
+	flags.Bool(sgRawFlag, false, "Set raw request option")
+}
+
+func getSG(cmd *cobra.Command, _ []string) {
+	var cnr cid.ID
+	var obj oid.ID
+
+	addr := readObjectAddress(cmd, &cnr, &obj)
+	pk := key.GetOrGenerate(cmd)
+	buf := bytes.NewBuffer(nil)
+
+	var prm internalclient.GetObjectPrm
+	sessionCli.Prepare(cmd, cnr, &obj, pk, &prm)
+	objectCli.Prepare(cmd, &prm)
+
+	raw, _ := cmd.Flags().GetBool(sgRawFlag)
+	prm.SetRawFlag(raw)
+	prm.SetAddress(addr)
+	prm.SetPayloadWriter(buf)
+
+	_, err := internalclient.GetObject(prm)
+	common.ExitOnErr(cmd, "rpc error: %w", err)
+
+	var sg storagegroupAPI.StorageGroup
+
+	err = sg.Unmarshal(buf.Bytes())
+	common.ExitOnErr(cmd, "could not unmarshal storage group: %w", err)
+
+	cmd.Printf("Expiration epoch: %d\n", sg.ExpirationEpoch())
+	cmd.Printf("Group size: %d\n", sg.ValidationDataSize())
+	common.PrintChecksum(cmd, "Group hash", sg.ValidationDataHash)
+
+	if members := sg.Members(); len(members) > 0 {
+		cmd.Println("Members:")
+
+		for i := range members {
+			cmd.Printf("\t%s\n", members[i].String())
+		}
+	}
+}