make gen and lint

cli/eth.go

@@ -4,12 +4,15 @@ import (
 	"context"
 	"encoding/hex"
 	"fmt"
+
+	"github.com/urfave/cli/v2"
+	"golang.org/x/xerrors"
+
 	"github.com/filecoin-project/go-address"
+
 	"github.com/filecoin-project/lotus/api/v0api"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/chain/types/ethtypes"
-	"github.com/urfave/cli/v2"
-	"golang.org/x/xerrors"
 )
 
 var EthCmd = &cli.Command{
@@ -28,6 +31,9 @@ func ethAddrFromFilecoinAddress(ctx context.Context, addr address.Address, fnapi
 	switch addr.Protocol() {
 	case address.BLS, address.SECP256K1:
 		faddr, err = fnapi.StateLookupID(ctx, addr, types.EmptyTSK)
+		if err != nil {
+			return ethtypes.EthAddress{}, addr, err
+		}
 	case address.Actor, address.ID:
 		f0addr, err := fnapi.StateLookupID(ctx, addr, types.EmptyTSK)
 		if err != nil {
@@ -91,6 +97,9 @@ var EthGetAddressCmd = &cli.Command{
 				return err
 			}
 			eaddr, faddr, err = ethAddrFromFilecoinAddress(ctx, addr, api)
+			if err != nil {
+				return err
+			}
 		} else if ethaddr != "" {
 			addr, err := hex.DecodeString(ethaddr)
 			if err != nil {

documentation/en/cli-lotus.md

@@ -31,6 +31,7 @@ COMMANDS:
      log           Manage logging
      wait-api      Wait for lotus api to come online
      fetch-params  Fetch proving parameters
+     eth           Query eth contract state
    NETWORK:
      net   Manage P2P Network
      sync  Inspect or interact with the chain syncer
@@ -2569,6 +2570,51 @@ OPTIONS:
    
 ```
 
+## lotus eth
+```
+NAME:
+   lotus eth - Query eth contract state
+
+USAGE:
+   lotus eth command [command options] [arguments...]
+
+COMMANDS:
+     stat     Print eth/filecoin addrs and code cid
+     call     Simulate an eth contract call
+     help, h  Shows a list of commands or help for one command
+
+OPTIONS:
+   --help, -h  show help (default: false)
+   
+```
+
+### lotus eth stat
+```
+NAME:
+   lotus eth stat - Print eth/filecoin addrs and code cid
+
+USAGE:
+   lotus eth stat [command options] [faddr]
+
+OPTIONS:
+   --ethaddr value  Ethereum address
+   --filaddr value  Filecoin address
+   
+```
+
+### lotus eth call
+```
+NAME:
+   lotus eth call - Simulate an eth contract call
+
+USAGE:
+   lotus eth call [command options] [from] [to] [params]
+
+OPTIONS:
+   --help, -h  show help (default: false)
+   
+```
+
 ## lotus net
 ```
 NAME: