[#716] adm: Add dump policy

Signed-off-by: Alexander Chuprov <a.chuprov@yadro.com>

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

@@ -1,11 +1,15 @@
 package morph
 
 import (
+	"bytes"
 	"fmt"
 	"strconv"
 	"strings"
+	"text/tabwriter"
 
+	commonCmd "git.frostfs.info/TrueCloudLab/frostfs-node/cmd/internal/common"
 	"github.com/nspcc-dev/neo-go/pkg/io"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient/invoker"
 	"github.com/nspcc-dev/neo-go/pkg/rpcclient/policy"
 	"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
 	"github.com/nspcc-dev/neo-go/pkg/vm/emit"
@@ -52,3 +56,32 @@ func setPolicyCmd(cmd *cobra.Command, args []string) error {
 
 	return wCtx.awaitTx()
 }
+
+func dumpPolicyCmd(cmd *cobra.Command, _ []string) error {
+	c, err := getN3Client(viper.GetViper())
+	commonCmd.ExitOnErr(cmd, "can't create N3 client:", err)
+
+	inv := invoker.New(c, nil)
+	policyContract := policy.NewReader(inv)
+
+	execFee, err := policyContract.GetExecFeeFactor()
+	commonCmd.ExitOnErr(cmd, "can't get execution fee factor:", err)
+
+	feePerByte, err := policyContract.GetFeePerByte()
+	commonCmd.ExitOnErr(cmd, "can't get fee per byte:", err)
+
+	storagePrice, err := policyContract.GetStoragePrice()
+	commonCmd.ExitOnErr(cmd, "can't get storage price:", err)
+
+	buf := bytes.NewBuffer(nil)
+	tw := tabwriter.NewWriter(buf, 0, 2, 2, ' ', 0)
+
+	_, _ = tw.Write([]byte(fmt.Sprintf("Execution Fee Factor:\t%d (int)\n", execFee)))
+	_, _ = tw.Write([]byte(fmt.Sprintf("Fee Per Byte:\t%d (int)\n", feePerByte)))
+	_, _ = tw.Write([]byte(fmt.Sprintf("Storage Price:\t%d (int)\n", storagePrice)))
+
+	_ = tw.Flush()
+	cmd.Print(buf.String())
+
+	return nil
+}

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

@@ -146,6 +146,15 @@ var (
 		},
 	}
 
+	dumpPolicy = &cobra.Command{
+		Use:   "dump-policy",
+		Short: "Dump FrostFS policy",
+		PreRun: func(cmd *cobra.Command, _ []string) {
+			_ = viper.BindPFlag(endpointFlag, cmd.Flags().Lookup(endpointFlag))
+		},
+		RunE: dumpPolicyCmd,
+	}
+
 	dumpContractHashesCmd = &cobra.Command{
 		Use:   "dump-hashes",
 		Short: "Dump deployed contract hashes",
@@ -239,6 +248,7 @@ func init() {
 	initForceNewEpochCmd()
 	initRemoveNodesCmd()
 	initSetPolicyCmd()
+	initDumpPolicyCmd()
 	initDumpContractHashesCmd()
 	initDumpNetworkConfigCmd()
 	initSetConfigCmd()
@@ -341,6 +351,11 @@ func initSetPolicyCmd() {
 	setPolicy.Flags().String(localDumpFlag, "", "Path to the blocks dump file")
 }
 
+func initDumpPolicyCmd() {
+	RootCmd.AddCommand(dumpPolicy)
+	dumpPolicy.Flags().StringP(endpointFlag, "r", "", "N3 RPC node endpoint")
+}
+
 func initRemoveNodesCmd() {
 	RootCmd.AddCommand(removeNodes)
 	removeNodes.Flags().String(alphabetWalletsFlag, "", "Path to alphabet wallets dir")