From 9b527a80337845133052c6208aaa6b134935069d Mon Sep 17 00:00:00 2001
From: protolambda <proto@protolambda.com>
Date: Thu, 8 Aug 2024 16:55:54 -0600
Subject: [PATCH] eth/tracers/live: update supply tracer to track deposits

---
 eth/tracers/live/supply.go | 3 +++
 fork.yaml                  | 7 +++++++
 2 files changed, 10 insertions(+)

diff --git a/eth/tracers/live/supply.go b/eth/tracers/live/supply.go
index 96f7059454..cfa4843bfe 100644
--- a/eth/tracers/live/supply.go
+++ b/eth/tracers/live/supply.go
@@ -188,6 +188,9 @@ func (s *supply) OnBalanceChange(a common.Address, prevBalance, newBalance *big.
 		// BalanceDecreaseSelfdestructBurn is non-reversible as it happens
 		// at the end of the transaction.
 		s.delta.Burn.Misc.Sub(s.delta.Burn.Misc, diff)
+	// Technically an OP-Stack deposit mint is a "withdrawal" from L1, taking funds into L2.
+	case tracing.BalanceMint:
+		s.delta.Issuance.Withdrawals.Add(s.delta.Issuance.Withdrawals, diff)
 	default:
 		return
 	}
diff --git a/fork.yaml b/fork.yaml
index 67253fcf18..63801ca37f 100644
--- a/fork.yaml
+++ b/fork.yaml
@@ -259,6 +259,13 @@ def:
           globs:
             - "accounts/abi/bind/backends/simulated.go"
             - "ethclient/simulated/backend.go"
+        - title: Live tracer update
+          description: |
+            Track L1-deposited native currency that is coming into the L2 supply.
+            The balance delta is considered to be a "withdrawal" from L1,
+            similar to a withdrawal of the Beacon-chain into the Ethereum L1 execution chain.
+          globs:
+            - "eth/tracers/live/supply.go"
     - title: "Hardware wallet support"
       description: Extend Ledger wallet support for newer devices on Macos
       sub: