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forge-safe: Gnosis Safe batch builder

Forge Safe lets Forge users build Gnosis Safe batch transactions using Forge scripting in Solidity. Forge Safe builds a collection of encoded transactions, then sends them to the Gnosis Safe Transaction Service uses surl.

The goal of this tool is to allow users to quickly build, validate and version control complex Safe batches as code.

Inspired by ape-safe and Olymsig

Supported Chains

Only supports Mainnet, Goerli and Arbitrum currently. If you'd like more to be supported, please make a PR.

The only chains supported by Gnosis Safe API can be found here.

Installation

forge install ind-igo/forge-safe

Usage

Steps:

  1. In your .env file
    • Set CHAIN to the name of the chain your Safe is on
    • Set WALLET_TYPE with LOCAL or LEDGER depending on your wallet
  2. Import BatchScript.sol into your Forge script
  3. add isBatch({SAFE_ADDRESS}) modifier to function run()
  4. Call addToBatch() for each encoded call
  5. After all encoded txs have been added, call executeBatch() with your Safe address and whether to send the transaction
  6. Sign the batch data
  7. ???
  8. Profit
import {BatchScript} from "forge-safe/BatchScript.sol";

...
contract TestScript is BatchScript {
...
function run(bool send_) public isBatch(safe) {
        string memory gm = "gm";
        address greeter = 0x1111;

        bytes memory txn = abi.encodeWithSelector(
            Greeter.greet.selector,
            gm
        );
        addToBatch(greeter, 0, txn);

        executeBatch(send_);
}