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Why: * Multi format (html,plain) logger with color labels Solution: * Added mult fuctional logging formatter Task link: * NA Validtion steps: * NA Author: * Luigi Zuccarelli Date: * 02/04/2021 16:55
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‎Makefile

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.PHONY: all test build clean
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all: test build
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build:
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mkdir -p build
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go build -o build ./...
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build-dev:
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mkdir -p build
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GOOS=linux go build -ldflags="-s -w" -o build ./...
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test:
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go test -v -coverprofile=tests/results/cover.out ./...
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cover:
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go tool cover -html=tests/results/cover.out -o tests/results/cover.html
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clean:
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rm -rf build/*
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go clean ./...

‎README.md

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# multi.Logger
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really ? - a versatile logger that can format and print with color, in plain or html outputs

‎build/example

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‎cmd/example/main.go

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package main
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import (
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"fmt"
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"github.com/microlib/logger/pkg/multi"
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"github.com/microlib/simple"
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)
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// main - needs no explanation :)
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func main() {
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// older version
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var log = &simple.Logger{Level: "trace"}
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fmt.Println("Test")
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log.Info("Test")
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// initial new mutli functional logger
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var logger = multi.NewLogger(multi.COLOR, multi.TRACE)
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logger.Error("This is an error message")
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logger.Info("This is an info message")
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logger.Debug("This is a debug message")
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logger.Warn("This is a warn message")
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logger.Trace("This is a trace message")
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logger.Errorf("This is an error message %s", "hello reedge")
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logger.Infof("This is an info message %s", "hello reedge")
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logger.Debugf("This is a debug message %s", "hello reedge")
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logger.Warnf("This is a warn message %s", "hello reedge")
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logger.Tracef("This is a trace message %s", "hello reedge")
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logger = multi.NewLogger(multi.PLAIN, multi.TRACE)
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logger.Error("This is an error message")
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logger.Info("This is an info message")
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logger.Debug("This is a debug message")
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logger.Warn("This is a warn message")
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logger.Trace("This is a trace message")
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logger.Errorf("This is an error message %s", "hello reedge")
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logger.Infof("This is an info message %s", "hello reedge")
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logger.Debugf("This is a debug message %s", "hello reedge")
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logger.Warnf("This is a warn message %s", "hello reedge")
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logger.Tracef("This is a trace message %s", "hello reedge")
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logger = multi.NewLogger(multi.HTML, multi.TRACE)
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logger.Error("This is an error message")
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logger.Info("This is an info message")
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logger.Debug("This is a debug message")
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logger.Warn("This is a warn message")
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logger.Trace("This is a trace message")
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logger.Errorf("This is an error message %s", "hello reedge")
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logger.Infof("This is an info message %s", "hello reedge")
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logger.Debugf("This is a debug message %s", "hello reedge")
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logger.Warnf("This is a warn message %s", "hello reedge")
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logger.Tracef("This is a trace message %s", "hello reedge")
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}

‎go.mod

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module github.com/microlib/logger
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go 1.16
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require github.com/microlib/simple v1.0.1

‎go.sum

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github.com/microlib/simple v1.0.1 h1:hkJjfQg0PejJUJ6XiNG/1hxJa6dDsf3EPSh9ZbWDLjc=
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github.com/microlib/simple v1.0.1/go.mod h1:AIAkCaaQxDOkppDihi2iI0xOHak5dJjGtzGS35H8lcQ=

‎html/example.html

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2021/04/02 16:21:55 <span style="color:#eb4034">&nbsp;[ERROR]</span>&nbsp;:&nbsp;This is an error message</br>
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2021/04/02 16:21:55 <span style="color:#3498eb">&nbsp;[INFO]</span>&nbsp;:&nbsp;This is an info message</br>
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2021/04/02 16:21:55 <span style="color:#34eb40">&nbsp;[DEBUG]</span>&nbsp;:&nbsp;This is a debug message</br>
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2021/04/02 16:21:55 <span style="color:#eba434">&nbsp;[WARN]</span>&nbsp;:&nbsp;This is a warn message</br>
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2021/04/02 16:21:55 <span style="color:#d234eb">&nbsp;[TRACE]</span>&nbsp;:&nbsp;This is a trace message</br>
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2021/04/02 16:21:55 <span style="color:#eb4034">&nbsp;[ERROR]</span>&nbsp;:&nbsp;This is an error message hello reedge</br>
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2021/04/02 16:21:55 <span style="color:#3498eb">&nbsp;[INFO]</span>&nbsp;:&nbsp;This is an info message hello reedge</br>
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2021/04/02 16:21:55 <span style="color:#34eb40">&nbsp;[DEBUG]</span>&nbsp;:&nbsp;This is a debug message hello reedge</br>
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2021/04/02 16:21:55 <span style="color:#eba434">&nbsp;[WARN]</span>&nbsp;:&nbsp;This is a warn message hello reedge</br>
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2021/04/02 16:21:55 <span style="color:#d234eb">&nbsp;[TRACE]</span>&nbsp;:&nbsp;This is a trace message hello reedge</br>

‎pkg/multi/logger.go

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package multi
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import (
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"fmt"
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"log"
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)
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const (
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INFO = "info"
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DEBUG = "debug"
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WARN = "warn"
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ERROR = "error"
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TRACE = "trace"
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PLAIN = "plain"
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HTML = "html"
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COLOR = "color"
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)
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type colorRegistry struct {
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Red string
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Green string
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Blue string
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Yellow string
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Magento string
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}
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func NewLogger(mode, level string) *Logger {
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var cr *colorRegistry
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switch mode {
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case "color":
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cr = &colorRegistry{
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Red: "\x1b[1;31m [%s] \x1b[0m\t: %s",
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Green: "\x1b[1;36m [%s] \x1b[0m\t: %s",
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Blue: "\x1b[1;32m [%s] \x1b[0m\t: %s",
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Yellow: "\x1b[1;33m [%s] \x1b[0m\t: %s",
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Magento: "\x1b[1;35m [%s] \x1b[0m\t: %s",
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}
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break
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case "html":
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cr = &colorRegistry{
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Red: "<span style=\"color:#eb4034\">&nbsp;[%s]</span>&nbsp;:&nbsp;%s</br>",
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Green: "<span style=\"color:#34eb40\">&nbsp;[%s]</span>&nbsp;:&nbsp;%s</br>",
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Blue: "<span style=\"color:#3498eb\">&nbsp;[%s]</span>&nbsp;:&nbsp;%s</br>",
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Yellow: "<span style=\"color:#eba434\">&nbsp;[%s]</span>&nbsp;:&nbsp;%s</br>",
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Magento: "<span style=\"color:#d234eb\">&nbsp;[%s]</span>&nbsp;:&nbsp;%s</br>",
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}
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break
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case "plain":
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cr = &colorRegistry{
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Red: " [%s]\t: %s",
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Green: " [%s]\t: %s",
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Blue: " [%s]\t: %s",
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Yellow: " [%s]\t: %s",
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Magento: " [%s]\t: %s",
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}
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break
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}
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return &Logger{Level: level, Colors: cr}
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}
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type Logger struct {
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Level string
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Colors *colorRegistry
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}
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func (logger Logger) Debug(message string) {
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if logger.Level == DEBUG || logger.Level == TRACE {
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log.Printf(logger.Colors.Green, "DEBUG", message)
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}
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}
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func (logger Logger) Error(message string) {
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log.Printf(logger.Colors.Red, "ERROR", message)
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}
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func (logger Logger) Warn(message string) {
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if logger.Level == WARN || logger.Level == DEBUG || logger.Level == INFO || logger.Level == TRACE {
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log.Printf(logger.Colors.Yellow, "WARN", message)
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}
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}
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func (logger Logger) Trace(message string) {
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if logger.Level == TRACE {
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log.Printf(logger.Colors.Magento, "TRACE", message)
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}
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}
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func (logger Logger) Info(message string) {
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if logger.Level == INFO || logger.Level == DEBUG || logger.Level == TRACE {
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log.Printf(logger.Colors.Blue, "INFO", message)
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}
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}
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func (logger Logger) Errorf(msg string, val ...interface{}) {
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logger.Error(fmt.Sprintf(msg, val...))
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}
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func (logger Logger) Debugf(msg string, val ...interface{}) {
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logger.Debug(fmt.Sprintf(msg, val...))
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}
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func (logger Logger) Warnf(msg string, val ...interface{}) {
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logger.Warn(fmt.Sprintf(msg, val...))
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}
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func (logger Logger) Tracef(msg string, val ...interface{}) {
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logger.Trace(fmt.Sprintf(msg, val...))
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}
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func (logger Logger) Infof(msg string, val ...interface{}) {
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logger.Info(fmt.Sprintf(msg, val...))
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}

‎pkg/multi/logger_test.go

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package multi
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import (
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"testing"
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"github.com/microlib/simple"
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)
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func TestAll(t *testing.T) {
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var log = &simple.Logger{Level: "debug"}
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t.Run("Logging : should pass", func(t *testing.T) {
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log.Info("Testing new logger - this is the old version")
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// plainno color
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l := NewLogger(PLAIN, TRACE)
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l.Info("This is the new version")
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l.Info("Log Info")
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l.Debug("Log Debug")
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l.Trace("Log Trace")
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l.Error("Log Error")
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l.Infof("Log Info %s", "test")
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l.Debugf("Log Debug %s", "test")
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l.Tracef("Log Trace %s", "test")
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l.Errorf("Log Error %s", "test")
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// with terminal color
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l = NewLogger(COLOR, TRACE)
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l.Info("Log Info")
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l.Debug("Log Debug")
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l.Trace("Log Trace")
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l.Error("Log Error")
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l.Infof("Log Info %s", "test")
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l.Debugf("Log Debug %s", "test")
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l.Tracef("Log Trace %s", "test")
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l.Errorf("Log Error %s", "test")
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// with html decoration
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l = NewLogger(HTML, TRACE)
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l.Info("Log Info")
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l.Debug("Log Debug")
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l.Trace("Log Trace")
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l.Error("Log Error")
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l.Infof("Log Info %s", "test")
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l.Debugf("Log Debug %s", "test")
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l.Tracef("Log Trace %s", "test")
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l.Errorf("Log Error %s", "test")
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})
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}

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