log

It is a logger for golang, which has met many of my needs. It cat set different formatter with the same appender. Also it can set multi-appender for a logger instance.

All the new logger inherited the global logger. If the new logger is not set the formatter or appender, it will inherited the global logger's formatter and appender.

Level

This logger has 6 log-level.

FATAL
ERROR
INFO
WARN
DEBUG
TRACE

We can use the SetLevel or Logger.SetLevel to chang the log-level for each logger instance.

Fomatter

We can set a format layout to the each level for the logger instance. The global logger default format layout is %F %T [%l] %m. The pattern is:

    %m => the log message and its arguments formatted with `fmt.Sprintf` or `fmt.Sprint`
    %l => the log-level string
    %C => the caller with full file path
    %c => the caller with short file path
    %L => the line number of caller
    %% => '%'
    %n => '\n'
    %F => the date formatted like "2006-01-02"
    %D => the date formatted like "01/02/06"
    %T => the time formatted like 24h style "15:04:05"
    %a => the short name of weekday like "Mon"
    %A => the full name of weekday like "Monday"
    %b => the short name of month like "Jan"
    %B => the full name of month like "January"
    %d => the datetime formatted like RFC3339 "2006-01-02T15:04:05Z07:00"

Install

go get -u github.com/lrita/log