args in script? about book HOT 1 OPEN

I also was looking for a way to do this. As far as I understand, now this can only be done using the --sig option.

-s, --sig <SIG>
        The signature of the function you want to call in the contract, or raw
        calldata

        [default: run()]

By default when you run a script, the run() function in this script is called. But you can specify any function you want using --sig option. To call a function with input parameters you need to use raw calldata.

To make it easier to obtain calldata, you can use another tool that comes with foundry - cast.

For example your deploy script has a function like this:

function run(uint256 arg1, bool arg2) external { ... }

To get calldata to run it, use the command:

cast calldata "run(uint256,bool)" 1 true

Now you can run your script like this:

forge script scripts/DeployFromDeployer.s.sol:Deploy \
    --fork-url ${RPC_URL}  --broadcast -vvvv \
    --sig 0x0a3395f500000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000001

Can be combined into oneliner:

forge script scripts/DeployFromDeployer.s.sol:Deploy \
    --fork-url ${RPC_URL}  --broadcast -vvvv \
    --sig $(cast calldata "run(uint256,bool)" 1 true)

from book.