File Logging

[ThreeHrSleep]

Issue Addressed

#208
file logging should work now
still need to work on getting libp2p & discv5 logs though
edit1: (removed the stuff from here,will handle them in separate PR)
edit2: added libp2p & discv5 stuff back in here as the fix was small enough

[dknopik]

Few notes from my side:

• We should use a default log directory if none were set, e.g. /logs
• I added --debug-level debug but see only INFO for some reason
• Differing levels for console and file would be nice if possible, so that the user (console) only sees info, but we have debug in the file for troubleshooting. I think it's done this way in LH as well

[macladson]

Just giving this a quick review, but I didn't test anything so was just looking over the code. Hopefully this is helpful

[ThreeHrSleep]

Thanks for the review(s)!
i think all the suggestions should be covered now : )

[macladson]

Didn't get a chance to do a very thorough review but just had some more code structure comments for you

[ThreeHrSleep]

Thanks again @macladson !! : )
Could you please take one last look to confirm if we're good to go(or if anything needs fixing😅) ?

[dknopik]

Tried this out on interop, there seem to be a few issues. Will dig into it more later.

[dknopik]

There seems to be a bug as libp2p_gossipsub and discv5 logs show up in the anchor.log file.

EDIT: actually, all three log files seem to contain all logs.

[dknopik]

Without this branch, cargo run -- node -t not_existing_dir returns

    Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.92s
     Running `target/debug/anchor node -t not_existing_dir`
2025-04-22T13:18:37.668948Z ERROR anchor: Unable to initialize configuration e="Unable to read \"not_existing_dir/ssv_contract_address.txt\": No such file or directory (os error 2)"

With this branch, it returns

    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.62s
     Running `target/debug/anchor node -t not_existing_dir`

so apparently, the error is suppressed.

[ThreeHrSleep]

Thanks for catching all the issues ! (& apologies for not testing the changes properly myself)
all of these should fixed now(hopefully),

please lmk if i broke anything else this time : )

[dknopik]

small nitpick

Otherwise, LGTM, seems to work well on interop. Can someone else take an additional look before merging?