cmd,eth,les: replace Cancun override flag with Prague (ethereum#31341)

It's that time of the cycle, should have this ready to go for mainnet
Prague release.

Author: lightclient

cmd/geth/chaincmd.go

@@ -50,7 +50,7 @@ var (
 		ArgsUsage: "<genesisPath>",
 		Flags: slices.Concat([]cli.Flag{
 			utils.CachePreimagesFlag,
-			utils.OverrideCancun,
+			utils.OverridePrague,
 			utils.OverrideVerkle,
 		}, utils.DatabaseFlags),
 		Description: `
@@ -212,9 +212,9 @@ func initGenesis(ctx *cli.Context) error {
 	defer stack.Close()
 
 	var overrides core.ChainOverrides
-	if ctx.IsSet(utils.OverrideCancun.Name) {
-		v := ctx.Uint64(utils.OverrideCancun.Name)
-		overrides.OverrideCancun = &v
+	if ctx.IsSet(utils.OverridePrague.Name) {
+		v := ctx.Uint64(utils.OverridePrague.Name)
+		overrides.OverridePrague = &v
 	}
 	if ctx.IsSet(utils.OverrideVerkle.Name) {
 		v := ctx.Uint64(utils.OverrideVerkle.Name)

cmd/geth/config.go

@@ -183,9 +183,9 @@ func makeConfigNode(ctx *cli.Context) (*node.Node, gethConfig) {
 // makeFullNode loads geth configuration and creates the Ethereum backend.
 func makeFullNode(ctx *cli.Context) *node.Node {
 	stack, cfg := makeConfigNode(ctx)
-	if ctx.IsSet(utils.OverrideCancun.Name) {
-		v := ctx.Uint64(utils.OverrideCancun.Name)
-		cfg.Eth.OverrideCancun = &v
+	if ctx.IsSet(utils.OverridePrague.Name) {
+		v := ctx.Uint64(utils.OverridePrague.Name)
+		cfg.Eth.OverridePrague = &v
 	}
 	if ctx.IsSet(utils.OverrideVerkle.Name) {
 		v := ctx.Uint64(utils.OverrideVerkle.Name)

cmd/geth/main.go

@@ -62,7 +62,7 @@ var (
 		utils.NoUSBFlag, // deprecated
 		utils.USBFlag,
 		utils.SmartCardDaemonPathFlag,
-		utils.OverrideCancun,
+		utils.OverridePrague,
 		utils.OverrideVerkle,
 		utils.EnablePersonal, // deprecated
 		utils.TxPoolLocalsFlag,

cmd/utils/flags.go

@@ -233,9 +233,9 @@ var (
 		Value:    2048,
 		Category: flags.EthCategory,
 	}
-	OverrideCancun = &cli.Uint64Flag{
-		Name:     "override.cancun",
-		Usage:    "Manually specify the Cancun fork timestamp, overriding the bundled setting",
+	OverridePrague = &cli.Uint64Flag{
+		Name:     "override.prague",
+		Usage:    "Manually specify the Prague fork timestamp, overriding the bundled setting",
 		Category: flags.EthCategory,
 	}
 	OverrideVerkle = &cli.Uint64Flag{

core/genesis.go

@@ -256,7 +256,7 @@ func (e *GenesisMismatchError) Error() string {
 
 // ChainOverrides contains the changes to chain config.
 type ChainOverrides struct {
-	OverrideCancun *uint64
+	OverridePrague *uint64
 	OverrideVerkle *uint64
 }
 
@@ -265,8 +265,8 @@ func (o *ChainOverrides) apply(cfg *params.ChainConfig) error {
 	if o == nil || cfg == nil {
 		return nil
 	}
-	if o.OverrideCancun != nil {
-		cfg.CancunTime = o.OverrideCancun
+	if o.OverridePrague != nil {
+		cfg.PragueTime = o.OverridePrague
 	}
 	if o.OverrideVerkle != nil {
 		cfg.VerkleTime = o.OverrideVerkle

eth/backend.go

@@ -214,8 +214,8 @@ func New(stack *node.Node, config *ethconfig.Config) (*Ethereum, error) {
 	}
 	// Override the chain config with provided settings.
 	var overrides core.ChainOverrides
-	if config.OverrideCancun != nil {
-		overrides.OverrideCancun = config.OverrideCancun
+	if config.OverridePrague != nil {
+		overrides.OverridePrague = config.OverridePrague
 	}
 	if config.OverrideVerkle != nil {
 		overrides.OverrideVerkle = config.OverrideVerkle

eth/ethconfig/config.go

@@ -148,8 +148,8 @@ type Config struct {
 	// send-transaction variants. The unit is ether.
 	RPCTxFeeCap float64
 
-	// OverrideCancun (TODO: remove after the fork)
-	OverrideCancun *uint64 `toml:",omitempty"`
+	// OverridePrague (TODO: remove after the fork)
+	OverridePrague *uint64 `toml:",omitempty"`
 
 	// OverrideVerkle (TODO: remove after the fork)
 	OverrideVerkle *uint64 `toml:",omitempty"`