Update logging configuration to fix jade about loggers --test

[leslieyip02]

When running commands with --log=debug or any log level (e.g. jade --log=debug decompile *.class .), the logs of the corresponding levels aren't printed. When running jade about loggers --test, there are no logs printed for any of the loggers:

This was caused because the logger name parsing logic incorrectly interpolated level instead of name:

jade/src/main/kotlin/org/ucombinator/jade/main/Main.kt

Lines 140 to 149 in 2dc48dd

	for ((name, level) in log) {
	// TODO: warn if log exists
	// TODO: warn if no such class or package (and suggest qualifications)
	val parsedName = when {
	name.startsWith(".") -> name.substring(1)
	name == "" -> ""
	else -> "org.ucombinator.jade.${level}" // TODO: autodetect or take from BuildInfo
	}
	Log.getLog(parsedName).setLevel(level)
	}

This has been fixed:

val parsedName = when {
  name.startsWith(".") -> name.substring(1)
  name == "" -> ""
  else -> "$logRoot.${name}"
}

Furthermore, instead of printing all available loggers, jade about loggers now only prints the loggers created by Jade. This is because external dependencies also had their own loggers, which adds noise to the output. Listing the loggers of external dependencies may or may not be useful, so this functionality has been gated behind the --alll flag.

I also added an option --log-to-file so that it logs to the logs/ directory when the flag is set.

Additionally, some TODOs were tackled too:

• Use BuildInformation.group instead of hardcoding org.ucombinator.jade.
• Set DynamicCallerConverter's depth config fields to private.
• Add KDoc for Log.

The default log level was also set to INFO so that debug logs from external dependencies aren't logged on every command:

[leslieyip02]

Removed the old logic to scan the Jade JAR.

org.ucombinator
org.ucombinator.jade
org.ucombinator.jade.maven
org.ucombinator.jade.maven.JadeMetadataResolver
org.ucombinator.jade.maven.Maven
org.ucombinator.jade.util
org.ucombinator.jade.util.Log

The older JAR scanning logic detected 2 extra loggers:

org.ucombinator.jade.util
org.ucombinator.jade.util.Log

But this is because I took out log from Log, so there are no differences in the loggers detected.

Added a TODO for this limitation.