163 lines
2.9 KiB
Go
163 lines
2.9 KiB
Go
// Package log is a global internal logger
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package log
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import (
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"fmt"
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"os"
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"github.com/go-log/log"
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golog "github.com/go-log/log/log"
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)
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// level is a log level
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type Level int
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const (
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LevelFatal Level = iota
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LevelInfo
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LevelError
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LevelDebug
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LevelTrace
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)
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var (
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// the local logger
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logger log.Logger = golog.New()
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// default log level is info
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level = LevelInfo
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// prefix for all messages
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prefix string
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)
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func init() {
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switch os.Getenv("MICRO_LOG_LEVEL") {
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case "trace":
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level = LevelTrace
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case "debug":
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level = LevelDebug
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case "info":
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level = LevelInfo
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case "error":
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level = LevelError
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case "fatal":
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level = LevelFatal
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}
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}
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// Log makes use of github.com/go-log/log.Log
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func Log(v ...interface{}) {
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if len(prefix) > 0 {
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logger.Log(append([]interface{}{prefix, " "}, v...)...)
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return
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}
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logger.Log(v...)
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}
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// Logf makes use of github.com/go-log/log.Logf
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func Logf(format string, v ...interface{}) {
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if len(prefix) > 0 {
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format = prefix + " " + format
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}
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logger.Logf(format, v...)
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}
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// WithLevel logs with the level specified
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func WithLevel(l Level, v ...interface{}) {
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if l > level {
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return
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}
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Log(v...)
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}
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// WithLevel logs with the level specified
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func WithLevelf(l Level, format string, v ...interface{}) {
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if l > level {
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return
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}
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Logf(format, v...)
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}
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// Trace provides trace level logging
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func Trace(v ...interface{}) {
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WithLevel(LevelTrace, v...)
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}
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// Tracef provides trace level logging
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func Tracef(format string, v ...interface{}) {
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WithLevelf(LevelTrace, format, v...)
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}
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// Debug provides debug level logging
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func Debug(v ...interface{}) {
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WithLevel(LevelDebug, v...)
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}
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// Debugf provides debug level logging
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func Debugf(format string, v ...interface{}) {
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WithLevelf(LevelDebug, format, v...)
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}
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// Info provides info level logging
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func Info(v ...interface{}) {
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WithLevel(LevelInfo, v...)
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}
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// Infof provides info level logging
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func Infof(format string, v ...interface{}) {
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WithLevelf(LevelInfo, format, v...)
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}
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// Error provides warn level logging
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func Error(v ...interface{}) {
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WithLevel(LevelError, v...)
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}
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// Errorf provides warn level logging
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func Errorf(format string, v ...interface{}) {
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WithLevelf(LevelError, format, v...)
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}
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// Fatal logs with Log and then exits with os.Exit(1)
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func Fatal(v ...interface{}) {
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WithLevel(LevelFatal, v...)
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os.Exit(1)
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}
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// Fatalf logs with Logf and then exits with os.Exit(1)
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func Fatalf(format string, v ...interface{}) {
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WithLevelf(LevelFatal, format, v...)
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os.Exit(1)
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}
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// SetLogger sets the local logger
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func SetLogger(l log.Logger) {
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logger = l
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}
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// GetLogger returns the local logger
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func GetLogger() log.Logger {
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return logger
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}
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// SetLevel sets the log level
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func SetLevel(l Level) {
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level = l
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}
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// GetLevel returns the current level
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func GetLevel() Level {
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return level
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}
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// Set a prefix for the logger
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func SetPrefix(p string) {
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prefix = p
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}
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// Set service name
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func Name(name string) {
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prefix = fmt.Sprintf("[%s]", name)
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}
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