DummyLogger

Prints internal debug messages normally not shown to the user; mostly useful when debugging issues

Prints logging output which represents problems the user should care about

Prints miscellaneous logging output which isn't part of the main output a user is looking for, but useful to provide context on what Mill is doing

Global APIs that let the logger access the command line configuration and manipulate the global prompt, e.g. enabling or disabling it

Prints short-lived logging output where consecutive lines over-write each other; this shows up in the logger's prompt line in the multi-line prompt when Logger.withPromptLine is running.

Useful for information which is transient and disposable, e.g. progress indicators.

Prints logging output which represents warnings the user should care about

Whether the --debug flag was passed to Mill. Used to turn on additional logging to console and files on disk that you may not want to turn on by default due to verbosity or performance cost.

This Logger's versions of stdin, stdout, and stderr. Typically enabled thread-locally while the logger is being used via SystemStreamsUtils.withStreams, such that every println or System.err.println goes through the logger