cmd/utils: allow configurating blob pool from flags (#30203)

Currently, we have 3 flags to configure blob pool. However, we don't
read these flags and set the blob pool configuration in eth config
accordingly. This commit adds a function to check if these flags are
provided and set blob pool configuration based on them.

cmd/utils/flags.go

@@ -42,6 +42,7 @@ import (
 	"github.com/ethereum/go-ethereum/common/fdlimit"
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/rawdb"
+	"github.com/ethereum/go-ethereum/core/txpool/blobpool"
 	"github.com/ethereum/go-ethereum/core/txpool/legacypool"
 	"github.com/ethereum/go-ethereum/core/vm"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -1550,6 +1551,18 @@ func setTxPool(ctx *cli.Context, cfg *legacypool.Config) {
 	}
 }
 
+func setBlobPool(ctx *cli.Context, cfg *blobpool.Config) {
+	if ctx.IsSet(BlobPoolDataDirFlag.Name) {
+		cfg.Datadir = ctx.String(BlobPoolDataDirFlag.Name)
+	}
+	if ctx.IsSet(BlobPoolDataCapFlag.Name) {
+		cfg.Datacap = ctx.Uint64(BlobPoolDataCapFlag.Name)
+	}
+	if ctx.IsSet(BlobPoolPriceBumpFlag.Name) {
+		cfg.PriceBump = ctx.Uint64(BlobPoolPriceBumpFlag.Name)
+	}
+}
+
 func setMiner(ctx *cli.Context, cfg *miner.Config) {
 	if ctx.Bool(MiningEnabledFlag.Name) {
 		log.Warn("The flag --mine is deprecated and will be removed")
@@ -1651,6 +1664,7 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *ethconfig.Config) {
 	setEtherbase(ctx, cfg)
 	setGPO(ctx, &cfg.GPO)
 	setTxPool(ctx, &cfg.TxPool)
+	setBlobPool(ctx, &cfg.BlobPool)
 	setMiner(ctx, &cfg.Miner)
 	setRequiredBlocks(ctx, cfg)
 	setLes(ctx, cfg)