refactor(simdv2): allow non-comet server components

This renames NewRootCmd to NewCometBFTRootCmd, to make it clear that it
uses CometBFT for the consensus layer. Callers who want to use a
different consensus-providing server component can instead call
NewRootCmdWithConsensusComponent, passing in a callback to be evaluated
with a client context in order to produce the component.

This pattern is working for Gordian-Cosmos integration.

I'm not especially tied to the new function names. I'm also open to more
clear naming for "consensus component" which occurs a few times.

simapp/v2/simdv2/cmd/commands.go

@@ -17,7 +17,6 @@ import (
 	"cosmossdk.io/server/v2/api/grpc"
 	"cosmossdk.io/server/v2/api/rest"
 	"cosmossdk.io/server/v2/api/telemetry"
-	"cosmossdk.io/server/v2/cometbft"
 	serverstore "cosmossdk.io/server/v2/store"
 	"cosmossdk.io/simapp/v2"
 	confixcmd "cosmossdk.io/tools/confix/cmd"
@@ -43,8 +42,8 @@ func newApp[T transaction.Tx](logger log.Logger, viper *viper.Viper) serverv2.Ap
 
 func initRootCmd[T transaction.Tx](
 	rootCmd *cobra.Command,
-	txConfig client.TxConfig,
 	moduleManager *runtimev2.MM[T],
+	consensusComponent serverv2.ServerComponent[T],
 ) {
 	cfg := sdk.GetConfig()
 	cfg.Seal()
@@ -70,11 +69,7 @@ func initRootCmd[T transaction.Tx](
 		rootCmd,
 		newApp,
 		initServerConfig(),
-		cometbft.New(
-			&genericTxDecoder[T]{txConfig},
-			initCometOptions[T](),
-			initCometConfig(),
-		),
+		consensusComponent,
 		grpc.New[T](),
 		serverstore.New[T](),
 		telemetry.New[T](),

simapp/v2/simdv2/cmd/root_di.go

@@ -13,6 +13,8 @@ import (
 	"cosmossdk.io/depinject"
 	"cosmossdk.io/log"
 	"cosmossdk.io/runtime/v2"
+	serverv2 "cosmossdk.io/server/v2"
+	"cosmossdk.io/server/v2/cometbft"
 	"cosmossdk.io/simapp/v2"
 	basedepinject "cosmossdk.io/x/accounts/defaults/base/depinject"
 	lockupdepinject "cosmossdk.io/x/accounts/defaults/lockup/depinject"
@@ -28,8 +30,25 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 )
 
-// NewRootCmd creates a new root command for simd. It is called once in the main function.
-func NewRootCmd[T transaction.Tx]() *cobra.Command {
+// NewCometBFTRootCmd creates a new root command for simd,
+// using the CometBFT server component for consensus.
+// It is called once in the main function.
+func NewCometBFTRootCmd[T transaction.Tx]() *cobra.Command {
+	return NewRootCmdWithConsensusComponent(func(cc client.Context) serverv2.ServerComponent[T] {
+		return cometbft.New[T](
+			&genericTxDecoder[T]{cc.TxConfig},
+			initCometOptions[T](),
+			initCometConfig(),
+		)
+	})
+}
+
+// NewRootCmdWithConsensusComponent returns a new root command,
+// using the provided callback to instantiate the server component for the consensus layer.
+// Callers who want to use CometBFT should call [NewCometBFTRootCmd] directly.
+func NewRootCmdWithConsensusComponent[T transaction.Tx](
+	makeConsensusComponent func(cc client.Context) serverv2.ServerComponent[T],
+) *cobra.Command {
 	var (
 		autoCliOpts   autocli.AppOptions
 		moduleManager *runtime.MM[T]
@@ -82,12 +101,12 @@ func NewRootCmd[T transaction.Tx]() *cobra.Command {
 		},
 	}
 
-	initRootCmd(rootCmd, clientCtx.TxConfig, moduleManager)
+	consensusComponent := makeConsensusComponent(clientCtx)
+	initRootCmd(rootCmd, moduleManager, consensusComponent)
 
 	nodeCmds := nodeservice.NewNodeCommands()
 	autoCliOpts.ModuleOptions = make(map[string]*autocliv1.ModuleOptions)
 	autoCliOpts.ModuleOptions[nodeCmds.Name()] = nodeCmds.AutoCLIOptions()
-
 	if err := autoCliOpts.EnhanceRootCommand(rootCmd); err != nil {
 		panic(err)
 	}

simapp/v2/simdv2/cmd/root_test.go

@@ -16,7 +16,7 @@ import (
 )
 
 func TestInitCmd(t *testing.T) {
-	rootCmd := cmd.NewRootCmd[transaction.Tx]()
+	rootCmd := cmd.NewCometBFTRootCmd[transaction.Tx]()
 	rootCmd.SetArgs([]string{
 		"init",        // Test the init cmd
 		"simapp-test", // Moniker
@@ -29,7 +29,7 @@ func TestInitCmd(t *testing.T) {
 func TestHomeFlagRegistration(t *testing.T) {
 	homeDir := "/tmp/foo"
 
-	rootCmd := cmd.NewRootCmd[transaction.Tx]()
+	rootCmd := cmd.NewCometBFTRootCmd[transaction.Tx]()
 	rootCmd.SetArgs([]string{
 		"query",
 		fmt.Sprintf("--%s", flags.FlagHome),

simapp/v2/simdv2/cmd/testnet_test.go

@@ -16,7 +16,7 @@ import (
 )
 
 func TestInitTestFilesCmd(t *testing.T) {
-	rootCmd := cmd.NewRootCmd[transaction.Tx]()
+	rootCmd := cmd.NewCometBFTRootCmd[transaction.Tx]()
 	rootCmd.SetArgs([]string{
 		"testnet", // Test the testnet init-files command
 		"init-files",

simapp/v2/simdv2/main.go

@@ -12,7 +12,7 @@ import (
 )
 
 func main() {
-	rootCmd := cmd.NewRootCmd[transaction.Tx]()
+	rootCmd := cmd.NewCometBFTRootCmd[transaction.Tx]()
 	if err := serverv2.Execute(rootCmd, clientv2helpers.EnvPrefix, simapp.DefaultNodeHome); err != nil {
 		fmt.Fprintln(rootCmd.OutOrStderr(), err)
 		os.Exit(1)