Run wasm default option

[pinkforest]

• If subcommand is not found it is assumed it is lunatic run <wasm> without having to say run
• Allows backwards compatibility to 0.12
• Ergonomics: Less pain migrating to 0.13

[bkolobara]

Great work on figuring this out! There is also this part when running tests that now needs to receive an optional run: https://github.com/lunatic-solutions/lunatic/blob/main/src/mode/cargo_test.rs#L15-L18

Can this also be made optional?

[pinkforest]

I found a better way - let me know if you liked the old better - now it handles --flags proper w/ the power of regex :)

Now it's

$ lunatic --bench

Usage: lunatic run --bench <PATH> [WASM_ARGS]...

$ lunatic --bench target/wasm32-wasi/debug/yaws.wasm

Listening on addr: 127.0.0.1:9999

$ lunatic --dir . target/wasm32-wasi/debug/yaws.wasm

Listening on addr: 127.0.0.1:9999

$ lunatic target/wasm32-wasi/debug/yaws.wasm

Listening on addr: 127.0.0.1:9999

$ lunatic errororor

error: The subcommand 'errororor' wasn't recognized

Usage: lunatic-runtime <COMMAND>

For more information, try '--help'.

$ lunatic --fff errororor

error: unexpected argument '--fff' found

Usage: lunatic <COMMAND>

For more information, try '--help'.

$ lunatic run target/wasm32-wasi/debug/yaws.wasm

Listening on addr: 127.0.0.1:9999

[pinkforest]

Can this also be made optional?

I adjusted the detection that was out there and now it works in both under cargo test and lunatic run :tada:

[bkolobara]

This looks good to me. My only worry is that we will need to remember to extend the regex every time we add an additional argument to run, but this shouldn't be a big issue and I'm going to merge this as is.

[pinkforest]

remember to extend the regex every time we add an additional argument to run

Could always have a regex with ^- then as no subcommand start with a dash