AppOut returns an io.Writer to write app output to, like logs.

CLIFlags creates flag definitions for the logging utils.

DefaultCLIConfig creates a default log configuration.

NewLogger creates a new configured logger.

NewLogHandler creates a new configured handler, compatible as LvlSetter for log-level changes during runtime.

SetGlobalLogHandler sets the log handles as the handler of the global default logger.

DynamicLogHandler allow runtime-configuration of the log handler.

FormatFlagValue is a value type for cli.GenericFlag to parse and validate log-formatting-type values.

FormatType defines a type of log format.

LvlFlagValue is a value type for cli.GenericFlag to parse and validate log-level values.