evm: Add verify script

Author: bruce-riley

evm/sh/verify.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+
+# Sample usage:
+#   Sepolia: sh/verify.sh -r https://1rpc.io/sepolia 0x130e32c0B5B9c9823AAc21d7c53c753240Fd71e2
+#   Base Sepolia: sh/verify.sh -r https://sepolia.base.org 0xb583a345f609bAbbB69ef96925BA13dea5152e34
+#   Avalanche Fuji: sh/verify.sh -r https://rpc.ankr.com/avalanche_fuji 0xecabED02d566a6865Feb0C575375208d02D6bDf2
+
+function usage() {
+cat <<EOF >&2
+Usage:
+
+  $(basename "$0") [-h][-r rpc] <contract address> -- Verify that the deployed on-chain bytecode matches the local build artifact
+
+  where:
+      -h  show this help text
+      -r  rpc url
+EOF
+exit 1
+}
+
+while getopts ':hn:r:c:' option; do
+  case "$option" in
+    h) usage
+       ;;
+    c) chain=$OPTARG
+       ;;
+    n) network=$OPTARG
+       ;;
+    r) rpc=$OPTARG
+       ;;
+    :) printf "missing argument for -%s\n" "$OPTARG" >&2
+       usage
+       ;;
+   \?) printf "illegal option: -%s\n" "$OPTARG" >&2
+       usage
+       ;;
+  esac
+done
+shift $((OPTIND - 1))
+[ $# -ne 1 ] && usage
+
+json_file=out/Executor.sol/Executor.json
+contract_addr=$1
+
+set -euo pipefail
+
+# We'll write the bytecodes to temporary files
+deployed=$(mktemp)
+local=$(mktemp)
+
+cat "$json_file" | jq -r .deployedBytecode | jq -r .object > "$local" 
+
+ret=0
+# Grab bytecode from the JSON RPC using the eth_getCode method.
+
+curl "$rpc" \
+  -X POST \
+  -H "Content-Type: application/json" \
+  --data "{\"method\":\"eth_getCode\",\"params\":[\"$contract_addr\",\"latest\"],\"id\":1,\"jsonrpc\":\"2.0\"}" --silent | jq -r .result > "$deployed" || ret=$?
+
+if [ $ret -gt 0 ]; then
+  printf "\033[0;31mFailed to query eth RPC '%s' while verifying %s on %s\033[0m\n" "$rpc" "$contract_addr" 
+  exit 1
+fi
+
+echo "Deployed: " `cat $deployed`
+echo "Local:    " `cat $local`
+
+# hash, then see if they match up
+hash1=$(sha256sum "$deployed" | cut -f1 -d' ')
+hash2=$(sha256sum "$local" | cut -f1 -d' ')
+
+if [ "$hash1" == "$hash2" ]; then
+  printf "\033[0;32mDeployed bytecode of %s on %s matches %s\033[0m\n" "$contract_addr"  "$json_file";
+  exit 0;
+else
+  printf "\033[0;31mDeployed bytecode of %s on %s doesn't match %s\033[0m\n" "$contract_addr"  "$json_file";
+  echo "deployed hash:"
+  echo "$hash1"
+  echo "$json_file hash:"
+  echo "$hash2"
+  exit 1;
+fi