fix: dublication bug in logs

examples/example.go

@@ -7,10 +7,11 @@ import (
 func main() {
 	// Set logging configuration
 	logify.UseColors = true
-	logify.MaxLevel = logify.Silent
+
 
 	// Example logging
 	logify.Infof("This is an %s message", "info")
+	logify.Infof("This is new info msg")
 	logify.Warningf("This is a %s message", "warning")
 	logify.Errorf("This is an %s message", "error")
 	logify.Debugf("This is a %s message", "debug")

logger.go

@@ -5,12 +5,16 @@ import (
 	"os"
 	"strings"
 	"sync"
+	"time"
 )
 
 var (
-	UseColors = true
-	MaxLevel  = Info
-	mutex     = &sync.Mutex{}
+	UseColors      = true
+	MaxLevel       = Info
+	mutex          = &sync.Mutex{}
+	lastLogMessage string
+	lastLogTime    time.Time
+	duplicationGap = 100 * time.Millisecond // time gap to allow between duplicate logs
 )
 
 // log logs the actual message to the screen
@@ -19,22 +23,37 @@ func log(level Level, label string, format string, args ...interface{}) {
 		return
 	}
 
+	// Lock immediately to prevent concurrent calls
+	mutex.Lock()
+	defer mutex.Unlock()
+
 	sb := stringBuilderPool.Get().(*strings.Builder)
-	defer stringBuilderPool.Put(sb)
+	defer func() {
+		sb.Reset()
+		stringBuilderPool.Put(sb)
+	}()
 
+	// Build the message
 	getLabel(level, label, sb)
-
 	message := fmt.Sprintf(format, args...)
 	sb.WriteString(message)
 	if !strings.HasSuffix(message, "\n") {
 		sb.WriteString("\n")
 	}
 
-	mutex.Lock()
-	defer mutex.Unlock()
+	finalMessage := sb.String()
+
+	// Deduplicate consecutive identical log entries within a short time window
+	if finalMessage == lastLogMessage && time.Since(lastLogTime) < duplicationGap {
+		return
+	}
+	lastLogMessage = finalMessage
+	lastLogTime = time.Now()
+
+	// Output to appropriate stream
 	if level == Silent {
-		fmt.Fprint(os.Stdout, sb.String())
+		fmt.Fprint(os.Stdout, finalMessage)
 	} else {
-		fmt.Fprint(os.Stderr, sb.String())
+		fmt.Fprint(os.Stderr, finalMessage)
 	}
 }