feat: add l2 teardown script

.env.example

@@ -5,6 +5,7 @@ L1_EXPLORER_URL=https://sepolia.etherscan.io/
 L1_CHAIN_ID=11155111
 L1_CHAIN_NAME=Sepolia
 L1_BLOCK_TIME=12
+L1_FUNDED_ADDRESS=<DEPLOYER_ADDRESS>
 L1_FUNDED_PRIVATE_KEY=<DEPLOYER_PRIVATE_KEY>
 # Amount to fund the ADMIN, BATCHER and PROPOSER addresses
 # Specified as a string with a unit type. e.g. 1ether, 10gwei, 0.01ether

scripts/l2/l2-teardown.sh

@@ -0,0 +1,62 @@
+#!/bin/bash
+set -euo pipefail
+
+# Path to the .env file
+ENV_FILE="$(pwd)/.env"
+
+# Source the .env file
+source "$ENV_FILE"
+
+# Function to send out funds from an address
+drain_address() {
+    local address=$1
+    local private_key=$2
+
+    # Get existing balance
+    balance=$(cast balance --rpc-url "$L2_RPC_URL" "$address")
+    echo "Existing balance: $balance"
+
+    if [[ "$balance" == "0" ]]; then
+        echo "Balance is 0, skipping..."
+        return
+    fi
+
+    # Estimate gas
+    gas_cost=$(cast estimate --rpc-url "$L2_RPC_URL" \
+        --from "$address" \
+        --value "$balance" \
+        "$L1_FUNDED_ADDRESS" | \
+        xargs cast --to-eth --pad 18)
+
+    # Add 20% buffer
+    gas_cost_with_buffer=$(echo "$gas_cost * 1.2" | bc)
+    amount=$(echo "$balance - $gas_cost_with_buffer" | bc)
+
+    # Send out funds if amount is greater than 0
+    if [[ "$amount" -gt 0 ]]; then
+        echo "Sending out $amount to $L1_FUNDED_ADDRESS"
+        cast send --private-key "$private_key" --rpc-url "$L2_RPC_URL" \
+            --value "$amount" "$L1_FUNDED_ADDRESS"
+    else
+        echo "Gas cost exceeds balance, skipping..."
+    fi
+}
+
+# Fund the generated addresses
+for role in ADMIN BATCHER PROPOSER; do
+    address_var="GS_${role}_ADDRESS"
+    private_key_var="GS_${role}_PRIVATE_KEY"
+    address="${!address_var}"
+    private_key="${!private_key_var}"
+
+    if [[ -n "$address" ]]; then
+        echo "Draining $role address: $address"
+        drain_address "$address" "$private_key"
+        echo
+    else
+        echo "Warning: $role address not found in .env file"
+        echo
+    fi
+done
+
+echo "Draining complete."