Style Guide / Contributing

[ryanolson]

Topics that have come up in MRs:

• use of log vs. tracing for events
• using inline {variable} vs "{}", variable in format

Let's form a list, define a policy and then apply that policy across the code.

          I just like typing `log`.  Feels right for what it's doing at that moment. 

Let's standardize on this in the style guide.

Originally posted by @ryanolson in #181 (comment)

[alec-flowers]

To get rust logs in python in the wheel and through the c/rust API in vLLM I added the tracing-subscriber package.

This lets you do something like RUST_LOG=info python3 ... and will allow you to see the logging in rust as well as python. @ryanolson I noticed you also have something that allows you to do this with TRD_LOG. I think we should also standardize here as well.