Clean up queries, part 1

cmd/basecli/commands/query.go

@@ -1,10 +1,6 @@
 package commands
 
 import (
-	"encoding/hex"
-	"fmt"
-
-	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
 
 	wire "github.com/tendermint/go-wire"
@@ -12,44 +8,36 @@ import (
 	proofcmd "github.com/tendermint/light-client/commands/proofs"
 	"github.com/tendermint/light-client/proofs"
 
-	bccmd "github.com/tendermint/basecoin/cmd/commands"
 	btypes "github.com/tendermint/basecoin/types"
 )
 
-func init() {
-	//first modify the full node account query command for the light client
-	bccmd.AccountCmd.RunE = accountCmd
-	proofcmd.RootCmd.AddCommand(bccmd.AccountCmd)
+var AccountQueryCmd = &cobra.Command{
+	Use:   "account [address]",
+	Short: "Get details of an account, with proof",
+	RunE:  doAccountQuery,
 }
 
-func accountCmd(cmd *cobra.Command, args []string) error {
-	if len(args) != 1 {
-		return fmt.Errorf("account command requires an argument ([address])") //never stack trace
-	}
-
-	addrHex := StripHex(args[0])
-
-	// convert destination address to bytes
-	addr, err := hex.DecodeString(addrHex)
+func doAccountQuery(cmd *cobra.Command, args []string) error {
+	height := proofcmd.GetHeight()
+	addr, err := proofcmd.ParseHexKey(args, "address")
 	if err != nil {
-		return errors.Errorf("Account address (%v) is invalid hex: %v\n", addrHex, err)
+		return err
 	}
+	key := btypes.AccountKey(addr)
 
 	// get the proof -> this will be used by all prover commands
-	height := proofcmd.GetHeight()
 	node := commands.GetNode()
 	prover := proofs.NewAppProver(node)
-	key := btypes.AccountKey(addr)
 	proof, err := proofcmd.GetProof(node, prover, key, height)
 	if err != nil {
 		return err
 	}
 
-	var acc *btypes.Account
+	acc := new(btypes.Account)
 	err = wire.ReadBinaryBytes(proof.Data(), &acc)
 	if err != nil {
 		return err
 	}
 
-	return proofcmd.OutputProof(&acc, proof.BlockHeight())
+	return proofcmd.OutputProof(acc, proof.BlockHeight())
 }