From ed8431c736ab67dc825316b8ea35ca5c7f078563 Mon Sep 17 00:00:00 2001
From: Rahul Kothari <rahul.kothari.201@gmail.com>
Date: Fri, 13 Oct 2023 09:50:30 +0100
Subject: [PATCH] feat(docker-sandbox): allow forks in sandbox (#2831)

Currently you can't fork anvil on the sandbox. This PR enables this.
Instructions:

```
export FORK_BLOCK_NUMBER=17514288
export FORK_URL=<YOUR_RPC_URL e.g. https://mainnet.infura.io/v3/API_KEY>
```

Now run the sandbox!

Blocks #2726
---
 yarn-project/aztec-sandbox/docker-compose.yml | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/yarn-project/aztec-sandbox/docker-compose.yml b/yarn-project/aztec-sandbox/docker-compose.yml
index 5e66423bb29..24b74540038 100644
--- a/yarn-project/aztec-sandbox/docker-compose.yml
+++ b/yarn-project/aztec-sandbox/docker-compose.yml
@@ -2,7 +2,15 @@ version: '3'
 services:
   ethereum:
     image: ghcr.io/foundry-rs/foundry@sha256:29ba6e34379e79c342ec02d437beb7929c9e254261e8032b17e187be71a2609f
-    command: '"anvil --silent -p 8545 --host 0.0.0.0 --chain-id 31337"'
+    command: >
+      sh -c '
+      if [ -n "$FORK_BLOCK_NUMBER" ] && [ -n "$FORK_URL" ]; then
+        exec anvil -p 8545 --host 0.0.0.0 --chain-id 31337 --fork-url "$FORK_URL" --fork-block-number "$FORK_BLOCK_NUMBER"
+      elif [ -n "$FORK_URL" ]; then
+        exec anvil -p 8545 --host 0.0.0.0 --chain-id 31337 --fork-url "$FORK_URL" 
+      else
+        exec anvil -p 8545 --host 0.0.0.0 --chain-id 31337
+      fi'
     ports:
       - '${SANDBOX_ANVIL_PORT:-8545}:8545'