Commits on Jul 23, 2024

1. Add Safe to L2 Setup Contract (#759) …

   This PR introduces a setup contract that can be called from the `Safe`
   setup function in order to automatically promote a Safe at setup time if
   the code is executing on an L2. Namely, this allows the Safe Proxy
   factory to use a single singleton and initializer for all chains, but
   end up with different `singleton`s depending on the chain ID.
   
   The expected use of this contract is to use the standard proxy factory:
   
   ```solidity
   Safe l1Singleton;
   SafeL2 l2Singleton;
   SafeToL2Setup l2Setup;
   
   proxyFactory.createProxyWithNonce(
       address(l1Singleton),
       abi.encodeCall(
           l1Singleton.setup,
           (
               owners,
               threshold,
               address(l2Setup),
               abi.encodeCall(l2Setup.setupToL2, address(l2Singleton)),
               fallbackHandler,
               paymentToken,
               payment,
               paymentReceiver
           )
       ),
       saltNonce
   )
   ```
   
   On L1 (i.e. Ethereum Mainnet where `chainId == 1`), you would end up
   with a Safe where `safe.singleton == l1Singleton` and on any other
   chains, you would end up with `safe.singleton == l2Singleton`. This
   would happen _before_ the first transaction.
   
   ---------
   
   Co-authored-by: Mikhail <16622558+mmv08@users.noreply.github.com>

   

   nlordell and mmv08 committed Jul 23, 2024
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2. Adjust the tests for ethers v5

   

   mmv08 committed Jul 23, 2024
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