all: disable recording preimage of trie keys (#21402)

* cmd, core, eth, light, trie: disable recording preimage by default

* core, eth: fix unit tests

* core: fix import

* all: change to nopreimage

* cmd, core, eth, trie: use cache.preimages flag

* cmd: enable preimages for archive node

* cmd/utils, trie: simplify preimage tracking a bit

* core: fix linter

Co-authored-by: Péter Szilágyi <peterke@gmail.com>

cmd/utils/flags.go

@@ -383,6 +383,10 @@ var (
 		Name:  "cache.noprefetch",
 		Usage: "Disable heuristic state prefetch during block import (less CPU and disk IO, more time waiting for data)",
 	}
+	CachePreimagesFlag = cli.BoolTFlag{
+		Name:  "cache.preimages",
+		Usage: "Enable recording the SHA3/keccak preimages of trie keys (default: true)",
+	}
 	// Miner settings
 	MiningEnabledFlag = cli.BoolFlag{
 		Name:  "mine",
@@ -1526,6 +1530,12 @@ func SetEthConfig(ctx *cli.Context, stack *node.Node, cfg *eth.Config) {
 	if ctx.GlobalIsSet(CacheNoPrefetchFlag.Name) {
 		cfg.NoPrefetch = ctx.GlobalBool(CacheNoPrefetchFlag.Name)
 	}
+	// Read the value from the flag no matter if it's set or not.
+	cfg.Preimages = ctx.GlobalBool(CachePreimagesFlag.Name)
+	if cfg.NoPruning && !cfg.Preimages {
+		cfg.Preimages = true
+		log.Info("Enabling recording of key preimages since archive mode is used")
+	}
 	if ctx.GlobalIsSet(TxLookupLimitFlag.Name) {
 		cfg.TxLookupLimit = ctx.GlobalUint64(TxLookupLimitFlag.Name)
 	}
@@ -1835,6 +1845,11 @@ func MakeChain(ctx *cli.Context, stack *node.Node, readOnly bool) (chain *core.B
 		TrieDirtyDisabled:   ctx.GlobalString(GCModeFlag.Name) == "archive",
 		TrieTimeLimit:       eth.DefaultConfig.TrieTimeout,
 		SnapshotLimit:       eth.DefaultConfig.SnapshotCache,
+		Preimages:           ctx.GlobalBool(CachePreimagesFlag.Name),
+	}
+	if cache.TrieDirtyDisabled && !cache.Preimages {
+		cache.Preimages = true
+		log.Info("Enabling recording of key preimages since archive mode is used")
 	}
 	if !ctx.GlobalIsSet(SnapshotFlag.Name) {
 		cache.SnapshotLimit = 0 // Disabled