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Copy pathlog.go
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192 lines (158 loc) · 4.38 KB
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package log
import (
"fmt"
"io"
"linkshortener/lib/tool"
"linkshortener/setting"
"log/slog"
"os"
"strings"
"time"
"github.com/fatih/color"
)
var (
Stdout *os.File
NullOut *os.File
logWriter io.Writer
)
type SlogToCustomLogger struct{}
func (w *SlogToCustomLogger) Write(p []byte) (n int, err error) {
msg := strings.ReplaceAll(string(p), "\n", " ")
extractedMsg, extractedErr := extractLogParts(msg)
if extractedMsg != "" || extractedErr != "" {
if extractedErr != "" {
InfoPrint("3-Party: %s %s", extractedMsg, extractedErr)
} else {
InfoPrint("3-Party: %s", extractedMsg)
}
return len(p), nil
}
msg = strings.Join(strings.Fields(msg), " ")
if len(msg) > 100 {
msg = msg[:100] + "..."
}
InfoPrint("3-Party: %s", msg)
return len(p), nil
}
func extractLogParts(msg string) (string, string) {
prefixes := []string{"time=", "level=", "msg=", "err=", "ERROR", "INFO", "WARN"}
extractedMsg := ""
extractedErr := ""
for _, prefix := range prefixes {
startIdx := 0
for {
idx := strings.Index(msg[startIdx:], prefix)
if idx == -1 {
break
}
idx += startIdx
afterPrefix := msg[idx+len(prefix):]
if strings.HasPrefix(afterPrefix, "\"") {
if endQuote := strings.Index(afterPrefix[1:], "\""); endQuote != -1 {
content := afterPrefix[1 : endQuote+1]
if len(content) > 0 && content != " " {
if prefix == "err=" {
extractedErr = content
} else if prefix == "msg=" {
extractedMsg = content + extractedMsg
} else {
extractedMsg += " " + content
}
}
}
}
startIdx = idx + len(prefix)
}
}
return strings.TrimSpace(extractedMsg), extractedErr
}
func IsDebug() bool {
return setting.Cfg.LOG.Debug
}
func InitLog() {
var err error
timeStr := tool.Now()
Stdout = os.Stdout
NullOut, _ = os.OpenFile(os.DevNull, os.O_WRONLY, 0600)
color.Set(color.FgMagenta)
defer color.Unset()
path := "./logs/"
_ = tool.Mkdir(path)
logWriter, err = os.OpenFile(path+tool.NowDay()+".log", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
if err != nil {
_, _ = fmt.Fprintf(Stdout, "[PANIC] ["+timeStr+"] Error opening log file: %s\n", err)
_, _ = fmt.Fprintf(Stdout, "[PANIC] ["+timeStr+"] Program Exit after 5 Second\n")
time.Sleep(5 * time.Second)
os.Exit(0)
}
if setting.Cfg.RunMode != "dev" {
os.Stdout = NullOut
os.Stderr = NullOut
}
customWriter := &SlogToCustomLogger{}
customHandler := slog.NewTextHandler(customWriter, nil)
slog.SetDefault(slog.New(customHandler))
}
func Close() {
if logWriter != nil {
if closer, ok := logWriter.(io.Closer); ok {
_ = closer.Close()
}
logWriter = nil
}
}
func DebugPrint(format string, values ...interface{}) {
if IsDebug() {
if !strings.HasSuffix(format, "\n") {
format += "\n"
}
timeStr := tool.Now()
_, _ = fmt.Fprintf(logWriter, "[DEBUG] ["+timeStr+"] "+format, values...)
_, _ = fmt.Fprintf(Stdout, "[DEBUG] ["+timeStr+"] "+format, values...)
}
}
func InfoPrint(format string, values ...interface{}) {
if !strings.HasSuffix(format, "\n") {
format += "\n"
}
timeStr := tool.Now()
_, _ = fmt.Fprintf(logWriter, "[INFO] ["+timeStr+"] "+format, values...)
_, _ = fmt.Fprintf(Stdout, "[INFO] ["+timeStr+"] "+format, values...)
}
func WarnPrint(format string, values ...interface{}) {
if !strings.HasSuffix(format, "\n") {
format += "\n"
}
timeStr := tool.Now()
color.Set(color.FgYellow)
defer color.Unset()
_, _ = fmt.Fprintf(logWriter, "[WARN] ["+timeStr+"] "+format, values...)
_, _ = fmt.Fprintf(Stdout, "[WARN] ["+timeStr+"] "+format, values...)
}
func ErrorPrint(format string, values ...interface{}) {
if !strings.HasSuffix(format, "\n") {
format += "\n"
}
timeStr := tool.Now()
color.Set(color.FgRed)
defer color.Unset()
_, _ = fmt.Fprintf(logWriter, "[ERROR] ["+timeStr+"] "+format, values...)
_, _ = fmt.Fprintf(Stdout, "[ERROR] ["+timeStr+"] "+format, values...)
}
func PanicPrint(format string, values ...interface{}) {
if !strings.HasSuffix(format, "\n") {
format += "\n"
}
timeStr := tool.Now()
color.Set(color.FgMagenta)
defer color.Unset()
_, _ = fmt.Fprintf(logWriter, "[PANIC] ["+timeStr+"] "+format, values...)
_, _ = fmt.Fprintf(Stdout, "[PANIC] ["+timeStr+"] "+format, values...)
WarnPrint("Program Exit after 5 Second")
time.Sleep(5 * time.Second)
os.Exit(0)
}
func Errorf(format string, values ...interface{}) error {
ErrorPrint(format, values...)
return fmt.Errorf(format, values...)
}