Feat: Add calldata flag to seer evm generator

[karacurt]

No description provided.

[zomglings]

@karacurt : I have an issue with the current implementation.

Suppose I set --calldata on a transaction-sending command. Then it shouldn't require me to specify:

1. --rpc
2. --contract
3. --keystore

It should just produce the same output as abi encoding the method selector with the arguments.

You can see how the current implementation doesn't satisfy this property using ownable-erc-721:

% ./ownable-erc-721 deploy --calldata
Error: --keystore not specified (this should be a path to an Ethereum account keystore file)
Usage:
  ownable-erc-721 deploy [flags]

Flags:
      --calldata                          Set this flag if want to return the calldata instead of sending the transaction
      --gas-limit uint                    Gas limit for the transaction
      --gas-price string                  Gas price to use for the transaction
  -h, --help                              help for deploy
      --keyfile string                    Path to the keystore file to use for the transaction
      --max-fee-per-gas string            Maximum fee per gas to use for the (EIP-1559) transaction
      --max-priority-fee-per-gas string   Maximum priority fee per gas to use for the (EIP-1559) transaction
      --name-0 string                     name-0 argument
      --nonce string                      Nonce to use for the transaction
      --owner string                      owner argument (common.Address)
      --password string                   Password to use to unlock the keystore (if not specified, you will be prompted for the password when the command executes)
      --rpc string                        URL of the JSONRPC API to use
      --safe string                       Address of the Safe contract
      --safe-api string                   Safe API for the Safe Transaction Service (optional)
      --safe-create-call string           Address of the CreateCall contract (optional)
      --safe-nonce string                 Safe nonce overrider for the transaction (optional)
      --safe-operation uint8              Safe operation type: 0 (Call) or 1 (DelegateCall) - default is 1 (default 1)
      --safe-predict-address              Predict the deployment address (only works for Safe transactions)
      --safe-salt string                  Salt to use for the Safe transaction
      --simulate                          Simulate the transaction without sending it
      --symbol string                     symbol argument
      --timeout uint                      Timeout (in seconds) for interactions with the JSONRPC API (default 60)
      --value string                      Value to send with the transaction

--keystore not specified (this should be a path to an Ethereum account keystore file)

Or

% ./ownable-erc-721 approve --calldata --to-0 0xe49a94044c101bC1fD1158B1Ae8D6893E99465D1 --token-id 5  
Error: --contract not specified
Usage:
  ownable-erc-721 approve [flags]

Flags:
      --calldata                          Set this flag if want to return the calldata instead of sending the transaction
      --contract string                   Address of the contract to interact with
      --gas-limit uint                    Gas limit for the transaction
      --gas-price string                  Gas price to use for the transaction
  -h, --help                              help for approve
      --keyfile string                    Path to the keystore file to use for the transaction
      --max-fee-per-gas string            Maximum fee per gas to use for the (EIP-1559) transaction
      --max-priority-fee-per-gas string   Maximum priority fee per gas to use for the (EIP-1559) transaction
      --nonce string                      Nonce to use for the transaction
      --password string                   Password to use to unlock the keystore (if not specified, you will be prompted for the password when the command executes)
      --rpc string                        URL of the JSONRPC API to use
      --safe string                       Address of the Safe contract
      --safe-api string                   Safe API for the Safe Transaction Service (optional)
      --safe-function string              Safe function overrider to use for the transaction (optional)
      --safe-nonce string                 Safe nonce overrider for the transaction (optional)
      --safe-operation uint8              Safe operation type: 0 (Call) or 1 (DelegateCall)
      --simulate                          Simulate the transaction without sending it
      --timeout uint                      Timeout (in seconds) for interactions with the JSONRPC API (default 60)
      --to-0 string                       to-0 argument (common.Address)
      --token-id string                   token-id argument
      --value string                      Value to send with the transaction

--contract not specified

[zomglings]

Looks good in general, just two small changes remaining: cmd.Printf -> cmd.Println.

[zomglings]

Use cmd.Println instead of cmd.Printf - you want to have the newline at the end of the print output as it makes the output more usable in a terminal window.

[karacurt]

Fixed!

[zomglings]

Also here, use cmd.Println instead of cmd.Printf. Just to clarify, this puts a newline at the end of the output and makes it easier to work with in a terminal.

[karacurt]

Fixed!

[zomglings]

lgtm

great work @karacurt