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Running the Eth2 spec
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| > git clone https://github.com/ethereum/consensus-specs.git | |
| > python3 -m venv consensus-specs/ | |
| > cd consensus-specs/ | |
| > source bin/activate | |
| > python --version | |
| Python 3.8.10 | |
| > python setup.py install | |
| ... tons of output ... | |
| > make install_test | |
| ... some failures, then it installs cytoolz and sorts itself out ... | |
| > python setup.py pyspecdev | |
| > cd tests/core/pyspec/ | |
| > # You need to copy sizes.py to here | |
| > python sizes.py | jq |
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| { | |
| "AggregateAndProof": { | |
| "min_size": 337, | |
| "max_size": 593 | |
| }, | |
| "Attestation": { | |
| "min_size": 229, | |
| "max_size": 485 | |
| }, | |
| "AttestationData": { | |
| "size": 128 | |
| }, | |
| "AttesterSlashing": { | |
| "min_size": 464, | |
| "max_size": 33232 | |
| }, | |
| "BeaconBlock": { | |
| "min_size": 464, | |
| "max_size": 157816 | |
| }, | |
| "BeaconBlockBody": { | |
| "min_size": 380, | |
| "max_size": 157732 | |
| }, | |
| "BeaconBlockHeader": { | |
| "size": 112 | |
| }, | |
| "BeaconState": { | |
| "min_size": 2736629, | |
| "max_size": 152832656015861 | |
| }, | |
| "Checkpoint": { | |
| "size": 40 | |
| }, | |
| "ContributionAndProof": { | |
| "size": 264 | |
| }, | |
| "Deposit": { | |
| "size": 1240 | |
| }, | |
| "DepositData": { | |
| "size": 184 | |
| }, | |
| "DepositMessage": { | |
| "size": 88 | |
| }, | |
| "Eth1Block": { | |
| "size": 48 | |
| }, | |
| "Eth1Data": { | |
| "size": 72 | |
| }, | |
| "Fork": { | |
| "size": 16 | |
| }, | |
| "ForkData": { | |
| "size": 36 | |
| }, | |
| "HistoricalBatch": { | |
| "size": 524288 | |
| }, | |
| "IndexedAttestation": { | |
| "min_size": 228, | |
| "max_size": 16612 | |
| }, | |
| "LightClientUpdate": { | |
| "size": 25364 | |
| }, | |
| "PendingAttestation": { | |
| "min_size": 149, | |
| "max_size": 405 | |
| }, | |
| "ProposerSlashing": { | |
| "size": 416 | |
| }, | |
| "SignedAggregateAndProof": { | |
| "min_size": 437, | |
| "max_size": 693 | |
| }, | |
| "SignedBeaconBlock": { | |
| "min_size": 564, | |
| "max_size": 157916 | |
| }, | |
| "SignedBeaconBlockHeader": { | |
| "size": 208 | |
| }, | |
| "SignedContributionAndProof": { | |
| "size": 360 | |
| }, | |
| "SignedVoluntaryExit": { | |
| "size": 112 | |
| }, | |
| "SigningData": { | |
| "size": 64 | |
| }, | |
| "SyncAggregate": { | |
| "size": 160 | |
| }, | |
| "SyncAggregatorSelectionData": { | |
| "size": 16 | |
| }, | |
| "SyncCommittee": { | |
| "size": 24624 | |
| }, | |
| "SyncCommitteeContribution": { | |
| "size": 160 | |
| }, | |
| "SyncCommitteeMessage": { | |
| "size": 144 | |
| }, | |
| "Validator": { | |
| "size": 121 | |
| }, | |
| "VoluntaryExit": { | |
| "size": 16 | |
| }, | |
| "MetaData": { | |
| "size": 16 | |
| }, | |
| "Status": { | |
| "size": 84 | |
| }, | |
| "Goodbye": { | |
| "size": 8 | |
| }, | |
| "BeaconBlocksByRange": { | |
| "size": 24 | |
| } | |
| } |
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| # From https://gist.github.com/protolambda/db75c7faa1e94f2464787a480e5d613e with minor modifications | |
| from inspect import getmembers, isclass | |
| from eth2spec.utils.ssz.ssz_typing import Container, uint64, Bitvector | |
| from eth2spec.altair import mainnet | |
| from eth2spec.altair.mainnet import ForkDigest, Root, Slot, Epoch | |
| ATTESTATION_SUBNET_COUNT = 64 | |
| class MetaData(Container): | |
| seq_number: uint64 | |
| attnets: Bitvector[ATTESTATION_SUBNET_COUNT] | |
| class Status(Container): | |
| fork_digest: ForkDigest | |
| finalized_root: Root | |
| finalized_epoch: Epoch | |
| head_root: Root | |
| head_slot: Slot | |
| class Goodbye(uint64): | |
| pass | |
| class BeaconBlocksByRange(Container): | |
| start_slot: Slot | |
| count: uint64 | |
| step: uint64 | |
| def get_spec_ssz_types(): | |
| return [ | |
| value for (_, value) in getmembers(mainnet, isclass) | |
| if issubclass(value, Container) and value != Container # only the subclasses, not the imported base class | |
| ] + [MetaData, Status, Goodbye, BeaconBlocksByRange] | |
| type_bounds = { | |
| value.__name__: ({ | |
| 'size': value.type_byte_length() | |
| } if value.is_fixed_byte_length() else { | |
| 'min_size': value.min_byte_length(), | |
| 'max_size': value.max_byte_length(), | |
| }) for value in get_spec_ssz_types() | |
| } | |
| import json | |
| print(json.dumps(type_bounds)) |
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