Refactor EvmGetInfoCmd

cli/evm.go

@@ -40,23 +40,11 @@ var EvmCmd = &cli.Command{
 var EvmGetInfoCmd = &cli.Command{
 	Name:      "stat",
 	Usage:     "Print eth/filecoin addrs and code cid",
-	Flags: []cli.Flag{
-		&cli.StringFlag{
-			Name:  "filAddr",
-			Usage: "Filecoin address",
-		},
-		&cli.StringFlag{
-			Name:  "ethAddr",
-			Usage: "Ethereum address",
-		},
-	},
+	ArgsUsage: "address",
 	Action: func(cctx *cli.Context) error {
-
-		filAddr := cctx.String("filAddr")
-		ethAddr := cctx.String("ethAddr")
-
-		var faddr address.Address
-		var eaddr ethtypes.EthAddress
+		if cctx.NArg() != 1 {
+			return IncorrectNumArgs(cctx)
+		}
 
 		api, closer, err := GetFullNodeAPI(cctx)
 		if err != nil {
@@ -65,26 +53,25 @@ var EvmGetInfoCmd = &cli.Command{
 		defer closer()
 		ctx := ReqContext(cctx)
 
-		if filAddr != "" {
-			addr, err := address.NewFromString(filAddr)
-			if err != nil {
-				return err
-			}
-			eaddr, faddr, err = ethAddrFromFilecoinAddress(ctx, addr, api)
-			if err != nil {
-				return err
-			}
-		} else if ethAddr != "" {
-			eaddr, err = ethtypes.ParseEthAddress(ethAddr)
-			if err != nil {
-				return err
+		addrString := cctx.Args().Get(0)
+
+		var faddr address.Address
+		var eaddr ethtypes.EthAddress
+		addr, err := address.NewFromString(addrString)
+		if err != nil { // This isn't a filecoin address
+			eaddr, err = ethtypes.ParseEthAddress(addrString)
+			if err != nil { // This isn't an Eth address either
+				return xerrors.Errorf("address is not a filecoin or eth address")
 			}
 			faddr, err = eaddr.ToFilecoinAddress()
 			if err != nil {
 				return err
 			}
 		} else {
-			return xerrors.Errorf("Neither filAddr nor ethAddr specified")
+			eaddr, faddr, err = ethAddrFromFilecoinAddress(ctx, addr, api)
+			if err != nil {
+				return err
+			}
 		}
 
 		actor, err := api.StateGetActor(ctx, faddr, types.EmptyTSK)
@@ -97,7 +84,6 @@ var EvmGetInfoCmd = &cli.Command{
 		fmt.Println("Code cid: ", actor.Code.String())
 
 		return nil
-
 	},
 }
 

documentation/en/cli-lotus.md

@@ -2596,11 +2596,10 @@ NAME:
    lotus evm stat - Print eth/filecoin addrs and code cid
 
 USAGE:
-   lotus evm stat [command options] [arguments...]
+   lotus evm stat [command options] address
 
 OPTIONS:
-   --ethAddr value  Ethereum address
-   --filAddr value  Filecoin address
+   --help, -h  show help (default: false)
    
 ```