Jacek Sieka f19a497eec
ncli_db: add putState, putBlock (#3096)
* ncli_db: add putState, putBlock

These tools allow modifying an existing nimbus database for the purpose
of recovery or reorg, moving the head, tail and genesis to arbitrary
points.

* remove potentially expensive `putState` in `BeaconStateDB`
* introduce `latest_block_root` which computes the root of the latest
applied block from the `latest_block_header` field (instead of passing
it in separately)
* avoid some unnecessary BeaconState copies during init
* discover https://github.com/nim-lang/Nim/issues/19094
* prefer `HashedBeaconState` in a few places to avoid recomputing state
root
* fetch latest block root from state when creating blocks
* harden `get_beacon_proposer_index` against invalid slots and document
* move random spec function tests to `test_spec.nim`
* avoid unnecessary state root computation before block proposal
2021-11-18 13:02:43 +01:00

49 lines
1.8 KiB
Nim

# beacon_chain
# Copyright (c) 2018-2021 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [Defect].}
import
std/[os, strformat],
chronicles,
./spec/[beaconstate, eth2_ssz_serialization, eth2_merkleization, forks],
./spec/datatypes/[phase0, altair, merge]
export
beaconstate, eth2_ssz_serialization, eth2_merkleization, forks
# Dump errors are generally not fatal where used currently - the code calling
# these functions, like most code, is not exception safe
template logErrors(body: untyped) =
try:
body
except CatchableError as err:
notice "Failed to write SSZ", dir, msg = err.msg
proc dump*(dir: string, v: AttestationData, validator: ValidatorPubKey) =
logErrors:
SSZ.saveFile(dir / &"att-{v.slot}-{v.index}-{shortLog(validator)}.ssz", v)
proc dump*(dir: string, v: ForkyTrustedSignedBeaconBlock) =
logErrors:
SSZ.saveFile(dir / &"block-{v.message.slot}-{shortLog(v.root)}.ssz", v)
proc dump*(dir: string, v: ForkySignedBeaconBlock) =
logErrors:
SSZ.saveFile(dir / &"block-{v.message.slot}-{shortLog(v.root)}.ssz", v)
proc dump*(dir: string, v: ForkyHashedBeaconState) =
mixin saveFile
logErrors:
SSZ.saveFile(
dir / &"state-{v.data.slot}-{shortLog(v.latest_block_root)}-{shortLog(v.root)}.ssz",
v.data)
proc dump*(dir: string, v: SyncCommitteeMessage, validator: ValidatorPubKey) =
logErrors:
SSZ.saveFile(dir / &"sync-committee-msg-{v.slot}-{shortLog(validator)}.ssz", v)