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

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
experimental
Evgenii Stratonikov 2022-06-02 15:07:30 +03:00 committed by fyrchik
parent a219e3a667
commit fd48b96082
8 changed files with 381 additions and 343 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
cmd/neofs-cli/modules/root.go
View File

@ -16,6 +16,7 @@ import (
netmapCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/netmap"
objectCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/object"
sessionCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/session"
sgCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/storagegroup"
utilCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/util"
"github.com/nspcc-dev/neofs-node/misc"
"github.com/nspcc-dev/neofs-node/pkg/util/gendoc"
@ -80,6 +81,7 @@ func init() {
rootCmd.AddCommand(utilCli.Cmd)
rootCmd.AddCommand(netmapCli.Cmd)
rootCmd.AddCommand(objectCli.Cmd)
rootCmd.AddCommand(sgCli.Cmd)
rootCmd.AddCommand(gendoc.Command(rootCmd))
}

343
cmd/neofs-cli/modules/storagegroup.go
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@ -1,343 +0,0 @@
package cmd
import (
"bytes"
"crypto/ecdsa"
"errors"
"fmt"
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"
"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/storagegroup"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
"github.com/nspcc-dev/neofs-sdk-go/object"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
storagegroupAPI "github.com/nspcc-dev/neofs-sdk-go/storagegroup"
"github.com/nspcc-dev/neofs-sdk-go/user"
"github.com/spf13/cobra"
)
// storagegroupCmd represents the storagegroup command
var storagegroupCmd = &cobra.Command{
Use: "storagegroup",
Short: "Operations with Storage Groups",
Long: `Operations with Storage Groups`,
PersistentPreRun: func(cmd *cobra.Command, args []string) {
// bind exactly that cmd's flags to
// the viper before execution
commonflags.Bind(cmd)
commonflags.BindAPI(cmd)
},
}
var sgPutCmd = &cobra.Command{
Use: "put",
Short: "Put storage group to NeoFS",
Long: "Put storage group to NeoFS",
Run: putSG,
}
var sgGetCmd = &cobra.Command{
Use: "get",
Short: "Get storage group from NeoFS",
Long: "Get storage group from NeoFS",
Run: getSG,
}
var sgListCmd = &cobra.Command{
Use: "list",
Short: "List storage groups in NeoFS container",
Long: "List storage groups in NeoFS container",
Run: listSG,
}
var sgDelCmd = &cobra.Command{
Use: "delete",
Short: "Delete storage group from NeoFS",
Long: "Delete storage group from NeoFS",
Run: delSG,
}
const (
sgMembersFlag = "members"
sgIDFlag = "id"
sgRawFlag = "raw"
)
var (
sgMembers []string
sgID string
)
func initSGPutCmd() {
commonflags.Init(sgPutCmd)
flags := sgPutCmd.Flags()
flags.String("cid", "", "Container ID")
_ = sgPutCmd.MarkFlagRequired("cid")
flags.StringSliceVarP(&sgMembers, sgMembersFlag, "m", nil, "ID list of storage group members")
_ = sgPutCmd.MarkFlagRequired(sgMembersFlag)
}
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 initSGListCmd() {
commonflags.Init(sgListCmd)
sgListCmd.Flags().String("cid", "", "Container ID")
_ = sgListCmd.MarkFlagRequired("cid")
}
func initSGDeleteCmd() {
commonflags.Init(sgDelCmd)
flags := sgDelCmd.Flags()
flags.String("cid", "", "Container ID")
_ = sgDelCmd.MarkFlagRequired("cid")
flags.StringVarP(&sgID, sgIDFlag, "", "", "storage group identifier")
_ = sgDelCmd.MarkFlagRequired(sgIDFlag)
}
func init() {
storageGroupChildCommands := []*cobra.Command{
sgPutCmd,
sgGetCmd,
sgListCmd,
sgDelCmd,
}
rootCmd.AddCommand(storagegroupCmd)
storagegroupCmd.AddCommand(storageGroupChildCommands...)
for _, sgCommand := range storageGroupChildCommands {
objectCli.InitBearer(sgCommand)
commonflags.InitAPI(sgCommand)
}
initSGPutCmd()
initSGGetCmd()
initSGListCmd()
initSGDeleteCmd()
}
type sgHeadReceiver struct {
cmd *cobra.Command
key *ecdsa.PrivateKey
ownerID user.ID
prm internalclient.HeadObjectPrm
}
func (c sgHeadReceiver) Head(addr oid.Address) (interface{}, error) {
obj := addr.Object()
sessionCli.Prepare(c.cmd, addr.Container(), &obj, c.key, &c.prm)
c.prm.SetAddress(addr)
res, err := internalclient.HeadObject(c.prm)
var errSplitInfo *object.SplitInfoError
switch {
default:
return nil, err
case err == nil:
return res.Header(), nil
case errors.As(err, &errSplitInfo):
return errSplitInfo.SplitInfo(), nil
}
}
func putSG(cmd *cobra.Command, _ []string) {
pk := key.GetOrGenerate(cmd)
var ownerID user.ID
user.IDFromKey(&ownerID, pk.PublicKey)
var cnr cid.ID
err := readCID(cmd, &cnr)
common.ExitOnErr(cmd, "", err)
members := make([]oid.ID, len(sgMembers))
for i := range sgMembers {
err = members[i].DecodeString(sgMembers[i])
common.ExitOnErr(cmd, "could not parse object ID: %w", err)
}
var (
headPrm internalclient.HeadObjectPrm
putPrm internalclient.PutObjectPrm
)
sessionCli.Prepare(cmd, cnr, nil, pk, &putPrm)
objectCli.Prepare(cmd, &headPrm, &putPrm)
headPrm.SetRawFlag(true)
sg, err := storagegroup.CollectMembers(sgHeadReceiver{
cmd: cmd,
key: pk,
ownerID: ownerID,
prm: headPrm,
}, cnr, members)
common.ExitOnErr(cmd, "could not collect storage group members: %w", err)
sgContent, err := sg.Marshal()
common.ExitOnErr(cmd, "could not marshal storage group: %w", err)
obj := object.New()
obj.SetContainerID(cnr)
obj.SetOwnerID(&ownerID)
obj.SetType(object.TypeStorageGroup)
putPrm.SetHeader(obj)
putPrm.SetPayloadReader(bytes.NewReader(sgContent))
res, err := internalclient.PutObject(putPrm)
common.ExitOnErr(cmd, "rpc error: %w", err)
cmd.Println("Storage group successfully stored")
cmd.Printf(" ID: %s\n CID: %s\n", res.ID(), cnr)
}
func getSGID() (*oid.ID, error) {
var obj oid.ID
err := obj.DecodeString(sgID)
if err != nil {
return nil, fmt.Errorf("could not parse storage group ID: %w", err)
}
return &obj, nil
}
func getSG(cmd *cobra.Command, _ []string) {
var cnr cid.ID
err := readCID(cmd, &cnr)
common.ExitOnErr(cmd, "", err)
id, err := getSGID()
common.ExitOnErr(cmd, "", err)
var addr oid.Address
addr.SetContainer(cnr)
addr.SetObject(*id)
buf := bytes.NewBuffer(nil)
pk := key.GetOrGenerate(cmd)
var prm internalclient.GetObjectPrm
sessionCli.Prepare(cmd, cnr, id, 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])
}
}
}
func listSG(cmd *cobra.Command, _ []string) {
var cnr cid.ID
err := readCID(cmd, &cnr)
common.ExitOnErr(cmd, "", err)
pk := key.GetOrGenerate(cmd)
var prm internalclient.SearchObjectsPrm
sessionCli.Prepare(cmd, cnr, nil, pk, &prm)
objectCli.Prepare(cmd, &prm)
prm.SetContainerID(cnr)
prm.SetFilters(storagegroup.SearchQuery())
res, err := internalclient.SearchObjects(prm)
common.ExitOnErr(cmd, "rpc error: %w", err)
ids := res.IDList()
cmd.Printf("Found %d storage groups.\n", len(ids))
for i := range ids {
cmd.Println(ids[i])
}
}
func delSG(cmd *cobra.Command, _ []string) {
var cnr cid.ID
err := readCID(cmd, &cnr)
common.ExitOnErr(cmd, "", err)
id, err := getSGID()
common.ExitOnErr(cmd, "", err)
var addr oid.Address
addr.SetContainer(cnr)
addr.SetObject(*id)
var prm internalclient.DeleteObjectPrm
pk := key.GetOrGenerate(cmd)
sessionCli.Prepare(cmd, cnr, id, pk, &prm)
objectCli.Prepare(cmd, &prm)
prm.SetAddress(addr)
res, err := internalclient.DeleteObject(prm)
common.ExitOnErr(cmd, "rpc error: %w", err)
tomb := res.Tombstone()
cmd.Println("Storage group removed successfully.")
cmd.Printf(" Tombstone: %s\n", tomb)
}
func readCID(cmd *cobra.Command, cnr *cid.ID) error {
err := cnr.DecodeString(cmd.Flag("cid").Value.String())
if err != nil {
return fmt.Errorf("decode container ID string: %w", err)
}
return nil
}

54
cmd/neofs-cli/modules/storagegroup/delete.go 100644
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@ -0,0 +1,54 @@
package storagegroup
import (
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"
"github.com/spf13/cobra"
)
var sgDelCmd = &cobra.Command{
Use: "delete",
Short: "Delete storage group from NeoFS",
Long: "Delete storage group from NeoFS",
Run: delSG,
}
func initSGDeleteCmd() {
commonflags.Init(sgDelCmd)
flags := sgDelCmd.Flags()
flags.String("cid", "", "Container ID")
_ = sgDelCmd.MarkFlagRequired("cid")
flags.StringVarP(&sgID, sgIDFlag, "", "", "storage group identifier")
_ = sgDelCmd.MarkFlagRequired(sgIDFlag)
}
func delSG(cmd *cobra.Command, _ []string) {
pk := key.GetOrGenerate(cmd)
var cnr cid.ID
var obj oid.ID
addr := readObjectAddress(cmd, &cnr, &obj)
var prm internalclient.DeleteObjectPrm
sessionCli.Prepare(cmd, cnr, &obj, pk, &prm)
objectCli.Prepare(cmd, &prm)
prm.SetAddress(addr)
res, err := internalclient.DeleteObject(prm)
common.ExitOnErr(cmd, "rpc error: %w", err)
tombstone := res.Tombstone()
cmd.Println("Storage group removed successfully.")
cmd.Printf(" Tombstone: %s\n", tombstone)
}

82
cmd/neofs-cli/modules/storagegroup/get.go 100644
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@ -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())
}
}
}

51
cmd/neofs-cli/modules/storagegroup/list.go 100644
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@ -0,0 +1,51 @@
package storagegroup
import (
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"
"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/storagegroup"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
"github.com/spf13/cobra"
)
var sgListCmd = &cobra.Command{
Use: "list",
Short: "List storage groups in NeoFS container",
Long: "List storage groups in NeoFS container",
Run: listSG,
}
func initSGListCmd() {
commonflags.Init(sgListCmd)
sgListCmd.Flags().String("cid", "", "Container ID")
_ = sgListCmd.MarkFlagRequired("cid")
}
func listSG(cmd *cobra.Command, _ []string) {
var cnr cid.ID
readCID(cmd, &cnr)
pk := key.GetOrGenerate(cmd)
var prm internalclient.SearchObjectsPrm
sessionCli.Prepare(cmd, cnr, nil, pk, &prm)
objectCli.Prepare(cmd, &prm)
prm.SetContainerID(cnr)
prm.SetFilters(storagegroup.SearchQuery())
res, err := internalclient.SearchObjects(prm)
common.ExitOnErr(cmd, "rpc error: %w", err)
ids := res.IDList()
cmd.Printf("Found %d storage groups.\n", len(ids))
for i := range ids {
cmd.Println(ids[i].String())
}
}

123
cmd/neofs-cli/modules/storagegroup/put.go 100644
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@ -0,0 +1,123 @@
package storagegroup
import (
"bytes"
"crypto/ecdsa"
"errors"
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"
"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/storagegroup"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
"github.com/nspcc-dev/neofs-sdk-go/object"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
oidSDK "github.com/nspcc-dev/neofs-sdk-go/object/id"
"github.com/nspcc-dev/neofs-sdk-go/user"
"github.com/spf13/cobra"
)
const sgMembersFlag = "members"
var sgMembers []string
var sgPutCmd = &cobra.Command{
Use: "put",
Short: "Put storage group to NeoFS",
Long: "Put storage group to NeoFS",
Run: putSG,
}
func initSGPutCmd() {
commonflags.Init(sgPutCmd)
flags := sgPutCmd.Flags()
flags.String("cid", "", "Container ID")
_ = sgPutCmd.MarkFlagRequired("cid")
flags.StringSliceVarP(&sgMembers, sgMembersFlag, "m", nil, "ID list of storage group members")
_ = sgPutCmd.MarkFlagRequired(sgMembersFlag)
}
func putSG(cmd *cobra.Command, _ []string) {
pk := key.GetOrGenerate(cmd)
var ownerID user.ID
user.IDFromKey(&ownerID, pk.PublicKey)
var cnr cid.ID
readCID(cmd, &cnr)
members := make([]oidSDK.ID, len(sgMembers))
for i := range sgMembers {
err := members[i].DecodeString(sgMembers[i])
common.ExitOnErr(cmd, "could not parse object ID: %w", err)
}
var (
headPrm internalclient.HeadObjectPrm
putPrm internalclient.PutObjectPrm
)
sessionCli.Prepare(cmd, cnr, nil, pk, &putPrm)
objectCli.Prepare(cmd, &headPrm, &putPrm)
headPrm.SetRawFlag(true)
sg, err := storagegroup.CollectMembers(sgHeadReceiver{
cmd: cmd,
key: pk,
ownerID: &ownerID,
prm: headPrm,
}, cnr, members)
common.ExitOnErr(cmd, "could not collect storage group members: %w", err)
sgContent, err := sg.Marshal()
common.ExitOnErr(cmd, "could not marshal storage group: %w", err)
obj := object.New()
obj.SetContainerID(cnr)
obj.SetOwnerID(&ownerID)
obj.SetType(object.TypeStorageGroup)
putPrm.SetHeader(obj)
putPrm.SetPayloadReader(bytes.NewReader(sgContent))
res, err := internalclient.PutObject(putPrm)
common.ExitOnErr(cmd, "rpc error: %w", err)
cmd.Println("Storage group successfully stored")
cmd.Printf(" ID: %s\n CID: %s\n", res.ID(), cnr)
}
type sgHeadReceiver struct {
cmd *cobra.Command
key *ecdsa.PrivateKey
ownerID *user.ID
prm internalclient.HeadObjectPrm
}
func (c sgHeadReceiver) Head(addr oid.Address) (interface{}, error) {
obj := addr.Object()
sessionCli.Prepare(c.cmd, addr.Container(), &obj, c.key, &c.prm)
c.prm.SetAddress(addr)
res, err := internalclient.HeadObject(c.prm)
var errSplitInfo *object.SplitInfoError
switch {
default:
return nil, err
case err == nil:
return res.Header(), nil
case errors.As(err, &errSplitInfo):
return errSplitInfo.SplitInfo(), nil
}
}

41
cmd/neofs-cli/modules/storagegroup/root.go 100644
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@ -0,0 +1,41 @@
package storagegroup
import (
"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
objectCli "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/modules/object"
"github.com/spf13/cobra"
)
// Cmd represents the storagegroup command
var Cmd = &cobra.Command{
Use: "storagegroup",
Short: "Operations with Storage Groups",
Long: `Operations with Storage Groups`,
PersistentPreRun: func(cmd *cobra.Command, args []string) {
// bind exactly that cmd's flags to
// the viper before execution
commonflags.Bind(cmd)
commonflags.BindAPI(cmd)
},
}
func init() {
storageGroupChildCommands := []*cobra.Command{
sgPutCmd,
sgGetCmd,
sgListCmd,
sgDelCmd,
}
Cmd.AddCommand(storageGroupChildCommands...)
for _, sgCommand := range storageGroupChildCommands {
objectCli.InitBearer(sgCommand)
commonflags.InitAPI(sgCommand)
}
initSGPutCmd()
initSGGetCmd()
initSGListCmd()
initSGDeleteCmd()
}

28
cmd/neofs-cli/modules/storagegroup/util.go 100644
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@ -0,0 +1,28 @@
package storagegroup
import (
"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/common"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
"github.com/spf13/cobra"
)
func readObjectAddress(cmd *cobra.Command, cnr *cid.ID, obj *oid.ID) oid.Address {
readCID(cmd, cnr)
readSGID(cmd, obj)
var addr oid.Address
addr.SetContainer(*cnr)
addr.SetObject(*obj)
return addr
}
func readCID(cmd *cobra.Command, id *cid.ID) {
err := id.DecodeString(cmd.Flag("cid").Value.String())
common.ExitOnErr(cmd, "decode container ID string: %w", err)
}
func readSGID(cmd *cobra.Command, id *oid.ID) {
err := id.DecodeString(cmd.Flag("oid").Value.String())
common.ExitOnErr(cmd, "decode storage group ID string: %w", err)
}