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https://github.com/status-im/nimbus-eth2.git
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f19a497eec
* 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
Introduction
ncli is a set of low level / debugging tools to interact with the nimbus beacon chain specification implementation, simliar to zcli. With it, you explore SSZ, make state transitions and compute hash tree roots.
Tools
- transition: Perform state transition given a pre-state and a block to apply (both in SSZ format)
- hash_tree_root: Print tree root of an SSZ object
- pretty: Pretty-print SSZ object as JSON
Building
Follow the instructions from nimbus-eth2
git clone https://github.com/status-im/nimbus-eth2.git
cd nimbus-eth2
make
Usage
# Build with minimal config
../env.sh nim c -d:const_preset=minimal ncli_transition
# Build with mainnet config
../env.sh nim c -d:const_preset=mainnet ncli_transition
# Run..
./ncli_transition --help