Request: Synchronous logging interface

[matanlurey]

Forked from #759.

I'd like to see a simplified logging interface that better matches user intention, and is synchronous (unlike package:logging), which will make many things more trivial and understandable, especially around testing and failing on severe.

abstract class BuildLogger {
  void info(String message, [...]);
  void warn(String message, [Object exception, StackTrace trace]);
  void error(String message, [...]);
}

Other ideas:

• Do we need something like .debug or .fine?
• Should we add performance tracing here too (.trace and .traceAsync?)

[natebosch]

.trace could tie in with #823

Is there value in designing something that can be used outside of the build ecosystem as well?

[matanlurey]

Probably, but personally I'd rather slow our roll of trying to fix everything.

(There isn't much importance for CLI-based logging outside of the Dart team itself)

[jakemac53]

@matanlurey I did update it so that we synchronously capture severe logs (just wrapping the logger). Do you think that is enough or is there still value in this from your perspective?

[matanlurey]

Value? Yes. Priority? No.