Adapt the local sim scripts to use the new run-time presets

beacon_chain/beacon_node.nim

@@ -14,8 +14,11 @@ import
   chronos, confutils, metrics, json_rpc/[rpcserver, jsonmarshal],
   chronicles,
   json_serialization/std/[options, sets, net], serialization/errors,
-  eth/db/kvstore, eth/db/kvstore_sqlite3,
-  eth/p2p/enode, eth/[keys, async_utils], eth/p2p/discoveryv5/[protocol, enr],
+
+  eth/[keys, async_utils],
+  eth/common/eth_types_json_serialization,
+  eth/db/[kvstore, kvstore_sqlite3],
+  eth/p2p/enode, eth/p2p/discoveryv5/[protocol, enr],
 
   # Local modules
   spec/[datatypes, digest, crypto, beaconstate, helpers, network, presets],
@@ -168,7 +171,8 @@ proc init*(
         conf.runtimePreset,
         web3Provider(conf.web3Url),
         conf.depositContractAddress.get,
-        Eth1Data(block_hash: conf.depositContractDeployedAt.get, deposit_count: 0))
+        Eth1Data(block_hash: conf.depositContractDeployedAt.get.asEth2Digest,
+                 deposit_count: 0))
       mainchainMonitor.start()
 
       genesisState = await mainchainMonitor.waitGenesis()
@@ -1160,11 +1164,20 @@ programMain:
           altonaMetadata
         else:
           if fileExists(networkName):
+            try:
               Json.loadFile(networkName, Eth2NetworkMetadata)
+            except SerializationError as err:
+              echo err.formatMsg(networkName)
+              quit 1
           else:
             fatal "Unrecognized network name", networkName
             quit 1
 
+    if metadata.incompatible:
+      fatal "The selected network is not compatible with the current build",
+             reason = metadata.incompatibilityDesc
+      quit 1
+
     config.runtimePreset = metadata.runtimePreset
 
     if config.cmd == noCommand:

beacon_chain/conf.nim

@@ -62,7 +62,7 @@ type
 
     depositContractDeployedAt* {.
       desc: "The Eth1 block hash where the deposit contract has been deployed"
-      name: "deposit-contract-block" }: Option[Eth2Digest]
+      name: "deposit-contract-block" }: Option[Eth1BlockHash]
 
     nonInteractive* {.
       desc: "Do not display interative prompts. Quit on missing configuration"
@@ -419,11 +419,11 @@ func parseCmdArg*(T: type Eth1Address, input: TaintedString): T
 func completeCmdArg*(T: type Eth1Address, input: TaintedString): seq[string] =
   return @[]
 
-func parseCmdArg*(T: type Eth2Digest, input: TaintedString): T
+func parseCmdArg*(T: type Eth1BlockHash, input: TaintedString): T
                  {.raises: [ValueError, Defect].} =
   fromHex(T, string input)
 
-func completeCmdArg*(T: type Eth2Digest, input: TaintedString): seq[string] =
+func completeCmdArg*(T: type Eth1BlockHash, input: TaintedString): seq[string] =
   return @[]
 
 func parseCmdArg*(T: type WalletName, input: TaintedString): T

beacon_chain/keystore_management.nim

@@ -2,7 +2,8 @@ import
   os, strutils, terminal,
   stew/byteutils, chronicles, chronos, web3, stint, json_serialization,
   serialization, blscurve, eth/common/eth_types, eth/keys, confutils, bearssl,
-  spec/[datatypes, digest, crypto, keystore], conf, ssz/merkleization, merkle_minimal
+  spec/[datatypes, digest, crypto, keystore],
+  conf, ssz/merkleization, merkle_minimal, network_metadata
 
 export
   keystore
@@ -15,7 +16,6 @@ const
   depositFileName* = "deposit.json"
 
 type
-  Eth1Address* = eth_types.EthAddress
   DelayGenerator* = proc(): chronos.Duration {.closure, gcsafe.}
 
 {.push raises: [Defect].}

beacon_chain/mainchain_monitor.nim

@@ -3,7 +3,7 @@ import
   chronos, web3, web3/ethtypes as web3Types, json, chronicles,
   eth/common/eth_types, eth/async_utils,
   spec/[datatypes, digest, crypto, beaconstate, helpers],
-  merkle_minimal
+  network_metadata, merkle_minimal
 
 from times import epochTime
 
@@ -29,7 +29,6 @@ contract(DepositContract):
 # Exceptions being reported from Chronos's asyncfutures2.
 
 type
-  Eth1Address = eth_types.EthAddress
   Eth1BlockNumber* = uint64
   Eth1BlockTimestamp* = uint64
   Eth1BlockHeader = web3Types.BlockHeader

beacon_chain/network_metadata.nim

@@ -1,7 +1,7 @@
 import
-  tables, strutils, os,
-  stew/byteutils, stew/shims/macros, nimcrypto/hash,
-  eth/common/[eth_types, eth_types_json_serialization],
+  tables, strutils, os, options,
+  stew/shims/macros, nimcrypto/hash,
+  web3/[ethtypes, conversions],
   spec/presets
 
 # ATTENTION! This file will produce a large C file, because we are inlining
@@ -15,25 +15,23 @@ import
 {.push raises: [Defect].}
 
 export
-  eth_types_json_serialization, RuntimePreset
+  ethtypes, conversions, RuntimePreset
 
 type
-  Eth1Address* = eth_types.EthAddress
-  Eth1BlockHash* = eth_types.Hash256
+  Eth1Address* = ethtypes.Address
+  Eth1BlockHash* = ethtypes.BlockHash
 
   Eth1Network* = enum
     mainnet
     rinkeby
     goerli
 
-  Eth2Network* = enum
-    customEth2Network
-    altona
-
   PresetIncompatible* = object of CatchableError
 
   Eth2NetworkMetadata* = object
-    eth1Network*: Eth1Network
+    case incompatible*: bool
+    of false:
+      eth1Network*: Option[Eth1Network]
       runtimePreset*: RuntimePreset
 
       # Parsing `enr.Records` is still not possible at compile-time
@@ -55,6 +53,8 @@ type
       # `genesisData` will have `len == 0` for networks with a still
       # unknown genesis state.
       genesisData*: string
+    else:
+      incompatibilityDesc*: string
 
 const presetValueLoaders = genExpr(nnkBracket):
   for constName in PresetValue:
@@ -92,23 +92,30 @@ proc extractRuntimePreset*(configPath: string, configData: PresetFile): RuntimeP
 
 proc loadEth2NetworkMetadata*(path: string): Eth2NetworkMetadata
                              {.raises: [CatchableError, Defect].} =
+  try:
     let
       genesisPath = path / "genesis.ssz"
       configPath = path / "config.yaml"
       runtimePreset = extractRuntimePreset(configPath, readPresetFile(configPath))
 
     Eth2NetworkMetadata(
-    eth1Network: goerli,
+      incompatible: false,
+      eth1Network: some goerli,
       runtimePreset: runtimePreset,
       bootstrapNodes: readFile(path / "bootstrap_nodes.txt").split("\n"),
       depositContractAddress: Eth1Address.fromHex readFile(path / "deposit_contract.txt").strip,
       depositContractDeployedAt: Eth1BlockHash.fromHex readFile(path / "deposit_contract_block.txt").strip,
       genesisData: if fileExists(genesisPath): readFile(genesisPath) else: "")
+  except PresetIncompatible as err:
+    Eth2NetworkMetadata(incompatible: true,
+                        incompatibilityDesc: err.msg)
 
 when const_preset == "mainnet":
   const
     mainnetMetadata* = Eth2NetworkMetadata(
-      eth1Network: mainnet,
+      incompatible: false, # TODO: This can be more accurate if we verify
+                           # that there are no constant overrides
+      eth1Network: some mainnet,
       runtimePreset: mainnetRuntimePreset,
       # TODO The values below are just placeholders for now
       bootstrapNodes: @[],

scripts/launch_local_testnet.sh

@@ -146,9 +146,11 @@ $MAKE LOG_LEVEL="${LOG_LEVEL}" NIMFLAGS="-d:insecure -d:testnet_servers_image ${
 
 PIDS=""
 WEB3_ARG=""
-DEPOSIT_CONTRACT_ARG=""
 STATE_SNAPSHOT_ARG=""
 BOOTSTRAP_TIMEOUT=10 # in seconds
+DEPOSIT_CONTRACT_ADDRESS="0x0000000000000000000000000000000000000000"
+DEPOSIT_CONTRACT_BLOCK="0x0000000000000000000000000000000000000000000000000000000000000000"
+NETWORK_METADATA_FILE="${DATA_DIR}/network.json"
 
 ./build/beacon_node deposits create \
 	--count=${TOTAL_VALIDATORS} \
@@ -179,10 +181,16 @@ else
 	ganache-cli --blockTime 17 --gasLimit 100000000 -e 100000 --verbose > "${DATA_DIR}/log_ganache.txt" 2>&1 &
 	PIDS="${PIDS},$!"
 
-	echo "Deploying deposit contract"
 	WEB3_ARG="--web3-url=ws://localhost:8545"
-	DEPOSIT_CONTRACT_ADDRESS=$(./build/deposit_contract deploy $WEB3_ARG)
-	DEPOSIT_CONTRACT_ARG="--deposit-contract=$DEPOSIT_CONTRACT_ADDRESS"
+
+	echo "Deploying deposit contract"
+	DEPLOY_CMD_OUTPUT=$(./build/deposit_contract deploy $WEB3_ARG)
+	# https://stackoverflow.com/questions/918886/how-do-i-split-a-string-on-a-delimiter-in-bash
+	OUTPUT_PIECES=(${DEPLOY_CMD_OUTPUT//;/ })
+	DEPOSIT_CONTRACT_ADDRESS=${OUTPUT_PIECES[0]}
+	DEPOSIT_CONTRACT_BLOCK=${OUTPUT_PIECES[1]}
+
+	echo Contract deployed at $DEPOSIT_CONTRACT_ADDRESS:$DEPOSIT_CONTRACT_BLOCK
 
 	MIN_DELAY=1
 	MAX_DELAY=5
@@ -194,7 +202,7 @@ else
 		--deposits-dir="${DEPOSITS_DIR}" \
 		--min-delay=$MIN_DELAY --max-delay=$MAX_DELAY \
 		$WEB3_ARG \
-		$DEPOSIT_CONTRACT_ARG > "${DATA_DIR}/log_deposit_maker.txt" 2>&1 &
+		--deposit-contract=${DEPOSIT_CONTRACT_ADDRESS} > "${DATA_DIR}/log_deposit_maker.txt" 2>&1 &
 
 	PIDS="${PIDS},$!"
 fi
@@ -205,6 +213,20 @@ fi
 		--config-file "${DATA_DIR}/prometheus.yml" || true # TODO: this currently fails on macOS,
 																											 # but it can be considered non-critical
 
+echo Wrote $NETWORK_METADATA_FILE:
+tee "$NETWORK_METADATA_FILE" <<EOF
+{
+  "runtimePreset": {
+    "MIN_GENESIS_ACTIVE_VALIDATOR_COUNT": ${TOTAL_VALIDATORS},
+    "MIN_GENESIS_TIME": 0,
+    "GENESIS_DELAY": 10,
+    "GENESIS_FORK_VERSION": "0x00000000"
+  },
+  "depositContractAddress": "${DEPOSIT_CONTRACT_ADDRESS}",
+  "depositContractDeployedAt": "${DEPOSIT_CONTRACT_BLOCK}"
+}
+EOF
+
 # Kill child processes on Ctrl-C/SIGTERM/exit, passing the PID of this shell
 # instance as the parent and the target process name as a pattern to the
 # "pkill" command.
@@ -264,6 +286,7 @@ for NUM_NODE in $(seq $BOOTSTRAP_NODE -1 0); do
 	./build/beacon_node \
 		--non-interactive \
 		--nat:extip:127.0.0.1 \
+		--network="${NETWORK_METADATA_FILE}" \
 		--log-level="${LOG_LEVEL}" \
 		--tcp-port=$(( BASE_PORT + NUM_NODE )) \
 		--udp-port=$(( BASE_PORT + NUM_NODE )) \
@@ -271,7 +294,6 @@ for NUM_NODE in $(seq $BOOTSTRAP_NODE -1 0); do
 		${BOOTSTRAP_ARG} \
 		${STATE_SNAPSHOT_ARG} \
 		${WEB3_ARG} \
-		${DEPOSIT_CONTRACT_ARG} \
 		--metrics \
 		--metrics-address="127.0.0.1" \
 		--metrics-port="$(( BASE_METRICS_PORT + NUM_NODE ))" \

tests/simulation/run_node.sh

@@ -81,18 +81,12 @@ if [ -f "${SNAPSHOT_FILE}" ]; then
   SNAPSHOT_ARG="--state-snapshot=${SNAPSHOT_FILE}"
 fi
 
-DEPOSIT_CONTRACT_ARGS=""
-if [ -f "${DEPOSIT_CONTRACT_FILE}" ]; then
-  DEPOSIT_CONTRACT_ARGS="$WEB3_ARG \
-    --deposit-contract=$(cat $DEPOSIT_CONTRACT_FILE) \
-    --deposit-contract-block=$(cat $DEPOSIT_CONTRACT_BLOCK_FILE)"
-fi
-
 cd "$NODE_DATA_DIR"
 
 $BEACON_NODE_BIN \
   --log-level=${LOG_LEVEL:-DEBUG} \
   $BOOTSTRAP_ARG \
+  --network=$NETWORK_METADATA_FILE \
   --data-dir=$NODE_DATA_DIR \
   --secrets-dir=$NODE_SECRETS_DIR \
   --node-name=$NODE_ID \
@@ -100,7 +94,7 @@ $BEACON_NODE_BIN \
   --udp-port=$PORT \
   $SNAPSHOT_ARG \
   $NAT_ARG \
-  $DEPOSIT_CONTRACT_ARGS \
+  $WEB3_ARG \
   --rpc \
   --rpc-address="127.0.0.1" \
   --rpc-port="$(( $BASE_RPC_PORT + $NODE_ID ))" \

tests/simulation/start.sh

@@ -54,10 +54,7 @@ GANACHE_BLOCK_TIME=5
 
 # Run with "SLOTS_PER_EPOCH=8 ./start.sh" to change these
 DEFS=""
-DEFS+="-d:MIN_GENESIS_ACTIVE_VALIDATOR_COUNT=${NUM_VALIDATORS} \
-       -d:MIN_GENESIS_TIME=0 \
-       -d:GENESIS_DELAY=10 \
-       -d:SECONDS_PER_ETH1_BLOCK=$GANACHE_BLOCK_TIME \
+DEFS+="-d:SECONDS_PER_ETH1_BLOCK=$GANACHE_BLOCK_TIME \
        -d:ETH1_FOLLOW_DISTANCE=1 "
 DEFS+="-d:MAX_COMMITTEES_PER_SLOT=${MAX_COMMITTEES_PER_SLOT:-1} "      # Spec default: 64
 DEFS+="-d:SLOTS_PER_EPOCH=${SLOTS_PER_EPOCH:-6} "   # Spec default: 32
@@ -163,6 +160,9 @@ function run_cmd {
   fi
 }
 
+DEPOSIT_CONTRACT_ADDRESS="0x0000000000000000000000000000000000000000"
+DEPOSIT_CONTRACT_BLOCK="0x0000000000000000000000000000000000000000000000000000000000000000"
+
 if [ "$USE_GANACHE" != "no" ]; then
   make deposit_contract
   echo Deploying the validator deposit contract...
@@ -174,8 +174,6 @@ if [ "$USE_GANACHE" != "no" ]; then
   DEPOSIT_CONTRACT_BLOCK=${OUTPUT_PIECES[1]}
 
   echo Contract deployed at $DEPOSIT_CONTRACT_ADDRESS:$DEPOSIT_CONTRACT_BLOCK
-  echo $DEPOSIT_CONTRACT_ADDRESS > $DEPOSIT_CONTRACT_FILE
-  echo $DEPOSIT_CONTRACT_BLOCK > $DEPOSIT_CONTRACT_BLOCK_FILE
 
   if [[ "$WAIT_GENESIS" == "yes" ]]; then
     run_cmd "(deposit maker)" "$BEACON_NODE_BIN deposits send \
@@ -187,6 +185,20 @@ if [ "$USE_GANACHE" != "no" ]; then
   fi
 fi
 
+echo Wrote $NETWORK_METADATA_FILE:
+tee "$NETWORK_METADATA_FILE" <<EOF
+{
+  "runtimePreset": {
+    "MIN_GENESIS_ACTIVE_VALIDATOR_COUNT": ${NUM_VALIDATORS},
+    "MIN_GENESIS_TIME": 0,
+    "GENESIS_DELAY": 10,
+    "GENESIS_FORK_VERSION": "0x00000000"
+  },
+  "depositContractAddress": "${DEPOSIT_CONTRACT_ADDRESS}",
+  "depositContractDeployedAt": "${DEPOSIT_CONTRACT_BLOCK}"
+}
+EOF
+
 if [[ "$USE_TMUX" == "yes" ]]; then
   $TMUX_CMD select-window -t "${TMUX_SESSION_NAME}:sim"
 fi

tests/simulation/vars.sh

@@ -31,14 +31,17 @@ VALIDATORS_DIR="${SIM_ROOT}/validators"
 SECRETS_DIR="${SIM_ROOT}/secrets"
 SNAPSHOT_FILE="${SIMULATION_DIR}/state_snapshot.ssz"
 NETWORK_BOOTSTRAP_FILE="${SIMULATION_DIR}/bootstrap_nodes.txt"
-DEPOSIT_CONTRACT_FILE="${SIMULATION_DIR}/deposit_contract.txt"
-DEPOSIT_CONTRACT_BLOCK_FILE="${SIMULATION_DIR}/deposit_contract_block.txt"
 BEACON_NODE_BIN="${GIT_ROOT}/build/beacon_node"
 VALIDATOR_CLIENT_BIN="${GIT_ROOT}/build/validator_client"
 DEPLOY_DEPOSIT_CONTRACT_BIN="${GIT_ROOT}/build/deposit_contract"
 BOOTSTRAP_ENR_FILE="${SIMULATION_DIR}/node-${BOOTSTRAP_NODE}/beacon_node.enr"
+NETWORK_METADATA_FILE="${SIMULATION_DIR}/network.json"
 
-WEB3_ARG="--web3-url=ws://localhost:8545"
+if [[ "$USE_GANACHE" == "yes" ]]; then
+  WEB3_ARG="--web3-url=ws://localhost:8545"
+else
+  WEB3_ARG=""
+fi
 
 BASE_P2P_PORT=30000
 BASE_RPC_PORT=7000

vendor/nim-web3

@@ -1 +1 @@
-Subproject commit dd132ba024fd8784aab7b5c306c4ec61c86e8613
+Subproject commit 04be808890ced3f47e9bb93267992f07c25acfbc