Handle verbose cast output in Anvil bootstrap scripts

Author: pathoam

packages/contracts/script/anvil-base-node.ts

@@ -17,13 +17,77 @@ console.log(chalk.blue('Running anvil base node'), {
   NEXT_PUBLIC_BASE_CHAIN_ID: $.env.NEXT_PUBLIC_BASE_CHAIN_ID,
 })
 
-const baseBaseFee = await $`cast base-fee --rpc-url $ANVIL_BASE_FORK_URL`
-const baseGasPrice = await $`cast gas-price --rpc-url $ANVIL_BASE_FORK_URL`
+const parseCastBigInt = (stdout: string, label: string): bigint => {
+  const tokens = stdout
+    .split(/\s+/)
+    .map((token) => token.replace(/[,;]+$/, ''))
+    .filter(Boolean)
+
+  for (let i = tokens.length - 1; i >= 0; i--) {
+    const candidate = tokens[i]
+    if (/^-?(?:0x)?[0-9a-fA-F]+$/.test(candidate)) {
+      try {
+        return BigInt(candidate)
+      } catch (error) {
+        console.warn(chalk.yellow(`Failed to parse ${label} token "${candidate}" as BigInt`), error)
+      }
+    }
+  }
+
+  throw new Error(
+    `Unable to parse numeric output for ${label} from cast command. Raw stdout: ${stdout}`
+  )
+}
+
+const runCastBigInt = async (
+  label: string,
+  fn: () => ProcessPromise<ProcessOutput>
+): Promise<bigint> => {
+  const maxAttempts = 3
+  let lastError: unknown
+
+  for (let attempt = 1; attempt <= maxAttempts; attempt++) {
+    try {
+      const result = await fn()
+      const stdout = result.stdout?.trim?.() ? result.stdout.trim() : `${result}`.trim()
+      if (!stdout) {
+        throw new Error(`cast returned empty stdout for ${label}`)
+      }
+      return parseCastBigInt(stdout, label)
+    } catch (error) {
+      lastError = error
+      console.warn(
+        chalk.yellow(`Attempt ${attempt}/${maxAttempts} to fetch ${label} failed. Retrying...`),
+        error
+      )
+      await new Promise((resolve) => setTimeout(resolve, attempt * 1000))
+    }
+  }
+
+  throw new Error(`Failed to resolve ${label} after ${maxAttempts} attempts`, {
+    cause: lastError,
+  })
+}
+
+const baseBaseFee = (
+  await runCastBigInt(
+    'base base fee',
+    () => $`cast base-fee --rpc-url ${$.env.ANVIL_BASE_FORK_URL}`
+  )
+).toString()
+const baseGasPrice = (
+  await runCastBigInt(
+    'base gas price',
+    () => $`cast gas-price --rpc-url ${$.env.ANVIL_BASE_FORK_URL}`
+  )
+).toString()
 
 // do not fork from the absolute latest block
-const blockHeight = await $`cast bn --rpc-url $ANVIL_BASE_FORK_URL`.then(
-  (r) => BigInt(r.stdout.trim()) - 30n
+const remoteBlockHeight = await runCastBigInt(
+  'latest block',
+  () => $`cast bn --rpc-url ${$.env.ANVIL_BASE_FORK_URL}`
 )
+const blockHeight = remoteBlockHeight > 30n ? remoteBlockHeight - 30n : remoteBlockHeight
 
 await $`docker rm -f sendapp-anvil-base`
 

packages/contracts/script/anvil-token-paymaster-deposit.ts

@@ -4,13 +4,52 @@ $.verbose = true
  * This script is used to deposit into the Entrypoint for TokenPaymaster
  */
 
+const stripControlCharacters = (value: string): string => {
+  let result = ''
+  for (const char of value) {
+    const code = char.charCodeAt(0)
+    if (
+      code === 0x0a || // \n
+      code === 0x0d || // \r
+      code === 0x09 || // \t
+      code >= 0x20
+    ) {
+      result += char
+    }
+  }
+  return result
+}
+
+const sanitizeCastBigInt = (stdout: string, label: string): string => {
+  const cleanOutput = stripControlCharacters(stdout)
+  const tokens = cleanOutput
+    .split(/\s+/)
+    .map((token) => token.replace(/[,;]+$/, ''))
+    .filter(Boolean)
+
+  for (let i = tokens.length - 1; i >= 0; i--) {
+    const candidate = tokens[i]
+    if (/^-?(?:0x)?[0-9a-fA-F]+$/.test(candidate)) {
+      try {
+        return BigInt(candidate).toString()
+      } catch (error) {
+        console.warn(chalk.yellow(`Failed to parse ${label} token "${candidate}" as BigInt`), error)
+      }
+    }
+  }
+
+  throw new Error(`Unable to parse numeric output for ${label}. Raw stdout: ${stdout}`)
+}
+
 void (async function main() {
   console.log(chalk.blue('Enable auto-mining...'))
   await $`cast rpc --rpc-url base-local evm_setAutomine true`
 
   // base mainnet fork
   $.env.PAYMASTER = '0x592e1224D203Be4214B15e205F6081FbbaCFcD2D'
-  $.env.DEPOSIT = await $`cast to-wei 100 ether`.then((r) => r.stdout.trim())
+  $.env.DEPOSIT = await $`cast to-wei 100 ether`.then((r) =>
+    sanitizeCastBigInt(r.stdout, 'deposit amount')
+  )
 
   console.log(chalk.blue('Adding deposit to paymaster...'), $.env.DEPOSIT)
   await $`forge script ./script/AddTokenPaymasterDeposit.s.sol:AddTokenPaymasterDepositScript \