Add build summary to output of build command

[leighmcculloch]

What

Add build summary displaying file location, hash, and exported functions, to the stellar contract build command.

$ stellar contract build
ℹ️ CARGO_BUILD_RUSTFLAGS=--remap-path-prefix=/Users/leighmcculloch/.cargo/registry/src= cargo rustc --manifest-path=Cargo.toml --crate-type=cdylib --target=wasm32-unknown-unknown --release
    Finished `release` profile [optimized] target(s) in 0.08s
ℹ️ Build Summary:
   Wasm File: target/wasm32-unknown-unknown/release/soroban_increment_contract.wasm
   Wasm Hash: 8153ca452b10ed4edaefeb5235145b9938786c8c6a626e060e3dce85752c0cc3
   Exported Functions: 2 found
     • _
     • increment
✅ Build Complete

Why

I think it could be helpful to output the wasm hash in the logs of builds.

It also outputs the exported functions because I was recently thinking more about the following issue, and pondering ways we could make it more obvious to folks when a build contains unexpected functions. This doesn't adequately solve that problem though, I wouldn't consider it a solution for that problem, so we should hold it as a why very loosely.

• Prevent importing contracts into each other or make it safe rs-soroban-sdk#1439

@fnando This was something that was more me experimenting with. I think it looks good, but I am not attached to it and can close it if you don't.

[leighmcculloch]

I'd like to make a tweak to this, to hide the function list unless verbose is passed.

[fnando]

I'd like to make a tweak to this, to hide the function list unless verbose is passed.

@leighmcculloch you don't think showing the list every time is useful?

[leighmcculloch]

@Ifropc I've changed how the command output works slightly, could you take another look?

[leighmcculloch]

@leighmcculloch you don't think showing the list every time is useful?

Hmm, maybe it is. I'm happy to wind back the verbose change. Winding it back now.

[leighmcculloch]

Reverted. Merging as is without verbose.

[leighmcculloch]

@Ifropc I think it needs reapproving.

[Ifropc]

@leighmcculloch can we hold merging it before the 22.5.0 release? I'd like to release before the EOD ideally

[leighmcculloch]

@leighmcculloch can we hold merging it before the 22.5.0 release?

Apologies, it auto merged. If necessary we can revert, but this is a small change so it's probably fine to go as is.