cmd/evm, cmd/clef, cmd/bootnode: fix / unify logging (#28696)

This change fixes a problem with our non-core binaries: evm, clef, bootnode.

First of all, they failed to convert from legacy loglevels 1 to 5, to the new slog loglevels -4 to 4.

Secondly, the logging was actually setup in the init phase, and then overridden in the main. This is not needed for evm, since it used the same flag name as the main geth verbosity. Better to let the flags/internal handle the logging init.

cmd/bootnode/main.go

@@ -32,7 +32,6 @@ import (
 	"github.com/ethereum/go-ethereum/p2p/enode"
 	"github.com/ethereum/go-ethereum/p2p/nat"
 	"github.com/ethereum/go-ethereum/p2p/netutil"
-	"golang.org/x/exp/slog"
 )
 
 func main() {
@@ -45,7 +44,7 @@ func main() {
 		natdesc     = flag.String("nat", "none", "port mapping mechanism (any|none|upnp|pmp|pmp:<IP>|extip:<IP>)")
 		netrestrict = flag.String("netrestrict", "", "restrict network communication to the given IP networks (CIDR masks)")
 		runv5       = flag.Bool("v5", false, "run a v5 topic discovery bootnode")
-		verbosity   = flag.Int("verbosity", int(log.LvlInfo), "log verbosity (0-5)")
+		verbosity   = flag.Int("verbosity", 3, "log verbosity (0-5)")
 		vmodule     = flag.String("vmodule", "", "log verbosity pattern")
 
 		nodeKey *ecdsa.PrivateKey
@@ -54,7 +53,8 @@ func main() {
 	flag.Parse()
 
 	glogger := log.NewGlogHandler(log.NewTerminalHandler(os.Stderr, false))
-	glogger.Verbosity(slog.Level(*verbosity))
+	slogVerbosity := log.FromLegacyLevel(*verbosity)
+	glogger.Verbosity(slogVerbosity)
 	glogger.Vmodule(*vmodule)
 	log.SetDefault(log.NewLogger(glogger))
 

cmd/clef/main.go

@@ -57,7 +57,6 @@ import (
 	"github.com/mattn/go-colorable"
 	"github.com/mattn/go-isatty"
 	"github.com/urfave/cli/v2"
-	"golang.org/x/exp/slog"
 )
 
 const legalWarning = `
@@ -493,7 +492,8 @@ func initialize(c *cli.Context) error {
 	if usecolor {
 		output = colorable.NewColorable(logOutput)
 	}
-	log.SetDefault(log.NewLogger(log.NewTerminalHandlerWithLevel(output, slog.Level(c.Int(logLevelFlag.Name)), usecolor)))
+	verbosity := log.FromLegacyLevel(c.Int(logLevelFlag.Name))
+	log.SetDefault(log.NewLogger(log.NewTerminalHandlerWithLevel(output, verbosity, usecolor)))
 
 	return nil
 }

cmd/evm/internal/t8ntool/block.go

@@ -30,10 +30,8 @@ import (
 	"github.com/ethereum/go-ethereum/consensus/clique"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/urfave/cli/v2"
-	"golang.org/x/exp/slog"
 )
 
 //go:generate go run github.com/fjl/gencodec -type header -field-override headerMarshaling -out gen_header.go
@@ -216,11 +214,6 @@ func (i *bbInput) sealClique(block *types.Block) (*types.Block, error) {
 
 // BuildBlock constructs a block from the given inputs.
 func BuildBlock(ctx *cli.Context) error {
-	// Configure the go-ethereum logger
-	glogger := log.NewGlogHandler(log.NewTerminalHandler(os.Stderr, false))
-	glogger.Verbosity(slog.Level(ctx.Int(VerbosityFlag.Name)))
-	log.SetDefault(log.NewLogger(glogger))
-
 	baseDir, err := createBasedir(ctx)
 	if err != nil {
 		return NewError(ErrorIO, fmt.Errorf("failed creating output basedir: %v", err))

cmd/evm/internal/t8ntool/transaction.go

@@ -28,12 +28,10 @@ import (
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/log"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/tests"
 	"github.com/urfave/cli/v2"
-	"golang.org/x/exp/slog"
 )
 
 type result struct {
@@ -66,11 +64,6 @@ func (r *result) MarshalJSON() ([]byte, error) {
 }
 
 func Transaction(ctx *cli.Context) error {
-	// Configure the go-ethereum logger
-	glogger := log.NewGlogHandler(log.NewTerminalHandler(os.Stderr, false))
-	glogger.Verbosity(slog.Level(ctx.Int(VerbosityFlag.Name)))
-	log.SetDefault(log.NewLogger(glogger))
-
 	var (
 		err error
 	)

cmd/evm/internal/t8ntool/transition.go

@@ -24,8 +24,6 @@ import (
 	"os"
 	"path"
 
-	"golang.org/x/exp/slog"
-
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/common/hexutil"
 	"github.com/ethereum/go-ethereum/consensus/misc/eip1559"
@@ -82,11 +80,6 @@ type input struct {
 }
 
 func Transition(ctx *cli.Context) error {
-	// Configure the go-ethereum logger
-	glogger := log.NewGlogHandler(log.NewTerminalHandler(os.Stderr, false))
-	glogger.Verbosity(slog.Level(ctx.Int(VerbosityFlag.Name)))
-	log.SetDefault(log.NewLogger(glogger))
-
 	var (
 		err    error
 		tracer vm.EVMLogger

cmd/evm/main.go

@@ -158,7 +158,6 @@ var stateTransitionCommand = &cli.Command{
 		t8ntool.ForknameFlag,
 		t8ntool.ChainIDFlag,
 		t8ntool.RewardFlag,
-		t8ntool.VerbosityFlag,
 	},
 }
 
@@ -171,7 +170,6 @@ var transactionCommand = &cli.Command{
 		t8ntool.InputTxsFlag,
 		t8ntool.ChainIDFlag,
 		t8ntool.ForknameFlag,
-		t8ntool.VerbosityFlag,
 	},
 }
 
@@ -188,7 +186,6 @@ var blockBuilderCommand = &cli.Command{
 		t8ntool.InputWithdrawalsFlag,
 		t8ntool.InputTxsRlpFlag,
 		t8ntool.SealCliqueFlag,
-		t8ntool.VerbosityFlag,
 	},
 }