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Log

CI Go Report Card GoDoc

Log is a flexible logger for Golang applications. Inspired by xfxdev/xlog.

NOTICE Neither Fatal(f) nor Panic(f) functions exit the running code.

Installation

go get github.com/nszilard/log

Features

• Level logging

Support 7 different log levels, with an additional one having no level set. This makes it super easy to migrate from the built-in "log" package.

const (
	PanicLevel Level = iota
	FatalLevel
	ErrorLevel
	WarnLevel
	NoLevel
	InfoLevel
	TraceLevel
	DebugLevel
)

• Custom Log Layout

The layout can be modified according to the following table (you can use any combination):

Key Maps to Example
%y Year
%M Month
%d Day
%h Hours
%m Minutes
%s Seconds
%l Log message
%L Log level
%F File path /a/b/c/d.go
%f File name d.go
%i Line in file
%D %y/%M/%d
%T %h:%m:%s

NOTICE: If you doesn't call 'SetLayout', it will use %D %T %L (%f:%i) ▶ %l by default.

• Thread safety

Log is protected by a mutex, so you can output logs in multiple goroutines.