logex

func Filter ¶

func Filter(filter *regexp.Regexp, matches *log.Logger) *log.Logger

pipes Logger's output (io.Writer) into another Logger, but only if entry matches regex

func NonNil ¶

func NonNil(ref *log.Logger) *log.Logger

helper for libraries in getting an alwas non-nil logger. if a logger given to you was nil, you get a Discard logger back, which you can call safely - it doesn't write anywhere

func OutputToAnotherLog ¶

func OutputToAnotherLog(another *log.Logger) io.Writer

pipes Logger's output (io.Writer) into another Logger

func Prefix ¶

func Prefix(prefix string, parent *log.Logger) *log.Logger

Prefix() creates a new Logger whose output is piped to parent logger with a prefix

func RedirectGlobalStdLog ¶

func RedirectGlobalStdLog(to *log.Logger)

func StandardLogger ¶

func StandardLogger() *log.Logger

centralized place for creating "standard" stderr logger in a way that supports suppressing log timestamps if a mechanism around it (Docker/systemd) would add one anyway

func StandardLoggerTo ¶

func StandardLoggerTo(sink io.Writer) *log.Logger

same as StandardLogger() but with explicit sink