go-ethereum/params/forks/forks.go
lightclient 13b157a461
core,params: add fork readiness indicator in logs (#31340)
closes #31310 

This has been requested a few times in the past and I think it is a nice
quality-of-life improvement for users. At a predetermined interval,
there will now be a "Fork ready" log when a future fork is scheduled,
but not yet active.

It can only possibly print after block import, which kinda avoids the
scenario where the client isn't progressing or is syncing and the user
thinks it's "ready" because it sees a ready log.

New output:

```console
INFO [03-08|21:32:57.472] Imported new potential chain segment     number=7 hash=aa24ee..f09e62 blocks=1 txs=0 mgas=0.000 elapsed="874.916µs" mgasps=0.000 snapdiffs=973.00B triediffs=7.05KiB triedirty=0.00B
INFO [03-08|21:32:57.473] Ready for fork activation                fork=Prague date="18 Mar 25 19:29 CET" remaining=237h57m0s timestamp=1,742,322,597
INFO [03-08|21:32:57.475] Chain head was updated                   number=7 hash=aa24ee..f09e62 root=19b0de..8d32f2 elapsed="129.125µs"
```

Easiest way to verify this behavior is to apply this patch and run `geth
--dev --dev.period=12`

```patch
diff --git a/params/config.go b/params/config.go
index 9c7719d901..030c4f80e7 100644
--- a/params/config.go
+++ b/params/config.go
@@ -174,7 +174,7 @@ var (
                ShanghaiTime:            newUint64(0),
                CancunTime:              newUint64(0),
                TerminalTotalDifficulty: big.NewInt(0),
-               PragueTime:              newUint64(0),
+               PragueTime:              newUint64(uint64(time.Now().Add(time.Hour * 300).Unix())),
                BlobScheduleConfig: &BlobScheduleConfig{
                        Cancun: DefaultCancunBlobConfig,
                        Prague: DefaultPragueBlobConfig,
```
2025-04-17 10:46:47 +02:00

75 lines
2 KiB
Go

// Copyright 2023 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package forks
// Fork is a numerical identifier of specific network upgrades (forks).
type Fork int
const (
Frontier Fork = iota
FrontierThawing
Homestead
DAO
TangerineWhistle // a.k.a. the EIP150 fork
SpuriousDragon // a.k.a. the EIP155 fork
Byzantium
Constantinople
Petersburg
Istanbul
MuirGlacier
Berlin
London
ArrowGlacier
GrayGlacier
Paris
Shanghai
Cancun
Prague
Osaka
)
// String implements fmt.Stringer.
func (f Fork) String() string {
s, ok := forkToString[f]
if !ok {
return "Unknown fork"
}
return s
}
var forkToString = map[Fork]string{
Frontier: "Frontier",
FrontierThawing: "Frontier Thawing",
Homestead: "Homestead",
DAO: "DAO",
TangerineWhistle: "Tangerine Whistle",
SpuriousDragon: "Spurious Dragon",
Byzantium: "Byzantium",
Constantinople: "Constantinople",
Petersburg: "Petersburg",
Istanbul: "Istanbul",
MuirGlacier: "Muir Glacier",
Berlin: "Berlin",
London: "London",
ArrowGlacier: "Arrow Glacier",
GrayGlacier: "Gray Glacier",
Paris: "Paris",
Shanghai: "Shanghai",
Cancun: "Cancun",
Prague: "Prague",
Osaka: "Osaka",
}