Fix logging to use ISO standard date

config/config.go

@@ -30,10 +30,5 @@ func Configure(filename string) (gosimpleconf.ConfigMap, error) {
 	flagMap := gosimpleconf.SetupFlagOverrides(configMap)
 	configMap = gosimpleconf.ParseFlags(configMap, flagMap)
 
-	err = SetupLogging(configMap)
-	if err != nil {
-		return nil, err
-	}
-
 	return configMap, nil
 }

config/logging.go

@@ -1,31 +1,43 @@
 package config
 
 import (
+	"fmt"
 	"log"
 	"os"
-	"path/filepath"
+	"time"
-
-	"gitea.wisellama.rocks/Wisellama/gosimpleconf"
 )
 
-func SetupLogging(configMap gosimpleconf.ConfigMap) error {
+type logWriter struct {
-	writeToFile := gosimpleconf.Bool(configMap["log.writeToFile"])
+	writeToFile bool
+	logFile     *os.File
+}
 
+func (w *logWriter) Write(bytes []byte) (int, error) {
+	t := time.Now().UTC().Format(time.RFC3339)
+	return fmt.Fprintf(w.logFile, "%v %v", t, string(bytes))
+}
+
+func (w *logWriter) Cleanup() {
+	defer w.logFile.Close()
+}
+
+func SetupLogging(writeToFile bool, logFilename string) (*logWriter, error) {
+	var err error
+	log.SetFlags(0)
+
+	logFile := os.Stdout
 	if writeToFile {
-		logFile := configMap["log.file"]
+		logFile, err = os.OpenFile(logFilename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
-		filename, err := filepath.Abs(logFile)
 		if err != nil {
-			return err
+			return nil, err
 		}
-
-		file, err := os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
-		if err != nil {
-			return err
-		}
-
-		log.SetOutput(file)
 	}
 
-	log.Printf("=== START %v ===", configMap["game.title"])
+	writer := &logWriter{
-	return nil
+		writeToFile: writeToFile,
+		logFile:     logFile,
+	}
+	log.SetOutput(writer)
+
+	return writer, nil
 }

main.go

@@ -3,7 +3,6 @@ package main
 import (
 	"fmt"
 	"log"
-	"os"
 	"runtime"
 
 	"gitea.wisellama.rocks/Project-Ely/project-ely/config"
@@ -13,15 +12,27 @@ import (
 
 func main() {
 	var err error
+
+	// Read configuration
 	configMap, err := config.Configure("game.conf")
 	if err != nil {
-		log.Printf("error during configure: %v\n", err)
+		log.Fatalf("error during configure: %v\n", err)
-		os.Exit(1)
 	}
 
+	// Setup logging
+	writeToFile := gosimpleconf.Bool(configMap["log.writeToFile"])
+	logFilename := configMap["log.file"]
+	logWriter, err := config.SetupLogging(writeToFile, logFilename)
+	if err != nil {
+		log.Fatalf("error setting up logging: %v\n", err)
+	}
+	defer logWriter.Cleanup()
+
+	// Start everything
+	log.Printf("=== Starting %v", configMap["game.title"])
 	err = run(configMap)
 	if err != nil {
-		log.Fatal(err)
+		log.Fatalf("error running: %v\n", err)
 	}
 }