Add is_view or similar "simulate-only" flag for deploy commands

[Row-Bear]

What problem does your feature solve?

When user is about to deploy a contract to main-net, the (estimated) fee for the upload and install is unknown.

What would you like to see?

soroban contract deploy --wasm xx --network xx --is_view (or other named flag) to allow a simulation against the actual network
In the same way soroban contract invoke has the --is_view flag to only simulate a call.

What alternatives are there?

As far as I know, an approximate calculation could be made if the wasm size and network settings are know, but it's non-trivial.

[leighmcculloch]

+1 I think we should make the --is-view a command that is present on all commands that submit a tx.

Separate to this I think we should also rename --is-view to --simulate-only, because reading your suggestions above in the title, simulate only is much easier to understand. Is view assumes an EVM/Solidity background and understanding.

[janewang]

This ticket tracks separatingsimulate, sign, and send and provides simulate. I'd like to close this in favor of #1265

[leighmcculloch]

This ticket tracks separatingsimulate, sign, and send and provides simulate. I'd like to close this in favor of #1265

I think this makes sense as one way to go. To be clear the way that you would emulate this behaviour is with the following:

soroban contract deploy ... --build-only | soroban tx simulate

Although @willemneal was also exploring adding a --sim-only option alongside --build-only, which I think is also fine, and is basically what this issue is proposing. If others are okay with that, then we keep this issue, and mark the following pull request as resolving it:

• feat: add no-build option for fee::Args #1267