feat: extend wasi_logging plugin to support log file

[apepkuss]

Summary

The latest version of wasi_logging plugin provides support for "dumping" log data to stdout and stderr. There is also a solid requirement for saving log data to a log file.

Details

It would be great if the following requirements can be satisfied:

1. Dump log data to a file with the extension .log.
2. It would be better to allow user to specify the filename.
3. Use an environment variable, for example WASM_LOG, to specify the log level.

Appendix

No response

[q82419]

@apepkuss ,

1. Where's the example (rust) using this plugin?
2. I think the context ("stderr" or "stdout") will be the filename or console to logging.
3. It's not necessary. The logging level is in the function parameter already.

[hydai]

https://github.com/WasmEdge/WasmEdge/tree/master/examples/plugin/wasi-logging

[apepkuss]

@q82419 For some scenarios, it's required to log the running data to a file instead of stderr and stdout. For example, dump the log info to common.log file so that another app or program analyzes the log info further.

[q82419]

@q82419 For some scenarios, it's required to log the running data to a file instead of stderr and stdout. For example, dump the log info to common.log file so that another app or program analyzes the log info further.

Of course but I didn't challenge about that.

[q82419]

Implemented in #3416