contracts-bedrock: better logging in deposit task

This task is ran in CI and it started failing recently
for unknown reasons. This increases the logging so
that it is easier to understand what is going on
in the script. It detects the case where the deposit
goes through but is undetected by client side hash
computation. It also periodically logs the block number
and hash of the latest block so it can be known if there
has been a reorg.

packages/contracts-bedrock/tasks/deposits.ts

@@ -66,6 +66,10 @@ task('deposit', 'Deposits funds onto L2.')
     const amountWei = utils.parseEther(amountEth)
     const value = amountWei.add(utils.parseEther('0.01'))
     console.log(`Depositing ${amountEth} ETH to ${to}`)
+
+    const preL2Balance = await l2Provider.getBalance(to)
+    console.log(`${to} has ${utils.formatEther(preL2Balance)} ETH on L2`)
+
     // Below adds 0.01 ETH to account for gas.
     const tx = await OptimismPortal.depositTransaction(
       to,
@@ -77,26 +81,39 @@ task('deposit', 'Deposits funds onto L2.')
     )
     console.log(`Got TX hash ${tx.hash}. Waiting...`)
     const receipt = await tx.wait()
-    console.log(
-      `Included in block ${receipt.blockHash} with index ${receipt.logIndex}`
-    )
+    console.log(`Included in block ${receipt.blockHash}`)
 
     // find the transaction deposited event and derive
     // the deposit transaction from it
     const event = receipt.events.find(
       (e: Event) => e.event === 'TransactionDeposited'
     )
-    const l2tx = DepositTx.fromL1Event(event)
     console.log(`Deposit has log index ${event.logIndex}`)
+    const l2tx = DepositTx.fromL1Event(event)
     const hash = l2tx.hash()
     console.log(`Waiting for L2 TX hash ${hash}`)
 
+    let i = 0
     while (true) {
       const expected = await l2Provider.send('eth_getTransactionByHash', [hash])
       if (expected) {
         console.log('Deposit success')
+        console.log(JSON.stringify(expected, null, 2))
         break
       }
+      const postL2Balance = await l2Provider.getBalance(to)
+      if (postL2Balance.gt(preL2Balance)) {
+        console.log(
+          `Unexpected balance increase without detecting deposit transaction`
+        )
+      }
+
+      if (i % 100 === 0) {
+        const block = await l2Provider.getBlock('latest')
+        console.log(`latest block ${block.number}:${block.hash}`)
+      }
+
       await sleep(500)
+      i++
     }
   })