feat: add vm.getChain(chainAlias)

[redtrama]

Early pr to get feedback.
Closes #10198

Solution

I've tried to implement the same way StdCheats handles getChain by alias by:

• Consulting chainId by their alias(string)
• if it's not defined on our foundry.toml should return a default rpc
• Default rpcs are defined into a hashMap

Once the approach is confirmed i can add getChain(chainId)

PR Checklist

• Added Tests
• Added Documentation
• Breaking changes

[grandizzy]

thank you. please make use of alloy-chains https://github.com/alloy-rs/chains instead declaring chains again

[mattsse]

I think we can do without these changes, because maybe this is just alloy_chains::Chain::from_str

[redtrama]

When returning rpcUrl in Chain struct, as StdChain does we want to:

1. return configured rpcUrl in foundry.toml
2. if it's not existent on foundry.toml return a default rpcUrl

I couldn't find a feature like this in alloy-rs/chains. should i find another way or just skip this feature and just return configured rpc in env?

sorry for the delay

[grandizzy]

hey @redtrama returning configured rpc sounds good, thanks

[grandizzy]

thank you, makes sense! @mattsse mind to have a quick look too?

[mattsse]

lgtm

[mattsse]

ah I see, we're actually missing a helper function for this on the chaintype, so this is a workaround