[ADD]first commit

pkg/logging/file.go

@@ -0,0 +1,44 @@
+package logging
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"time"
+)
+
+var (
+	LogSavePath = "runtime/logs/"
+	LogSaveName = "log"
+	LogFileExt = "log"
+	TimeFormat = "20060102"
+)
+func getLogFilePath() string {
+	return fmt.Sprintf("%s", LogSavePath)
+}
+func getLogFileFullPath() string {
+	prefixPath := getLogFilePath()
+	suffixPath := fmt.Sprintf("%s%s.%s", LogSaveName, time.Now().Format(TimeFormat), LogFileExt)
+	return fmt.Sprintf("%s%s", prefixPath, suffixPath)
+}
+func openLogFile(filePath string) *os.File {
+	_, err := os.Stat(filePath)
+	switch {
+	case os.IsNotExist(err):
+		mkDir()
+	case os.IsPermission(err):
+		log.Fatalf("Permission :%v", err)
+	}
+	handle, err := os.OpenFile(filePath, os.O_APPEND | os.O_CREATE | os.O_WRONLY, 0644)
+	if err != nil {
+		log.Fatalf("Fail to OpenFile :%v", err)
+	}
+	return handle
+}
+func mkDir() {
+	dir, _ := os.Getwd()
+	err := os.MkdirAll(dir + "/" + getLogFilePath(), os.ModePerm)
+	if err != nil {
+		panic(err)
+	}
+}

pkg/logging/log.go

@@ -0,0 +1,63 @@
+package logging
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"runtime"
+)
+
+type Level int
+
+var (
+	F                  *os.File
+	DefaultPrefix      = ""
+	DefaultCallerDepth = 2
+	logger             *log.Logger
+	logPrefix          = ""
+	levelFlags         = []string{"DEBUG", "INFO", "WARN", "ERROR", "FATAL"}
+)
+
+const (
+	DEBUG Level = iota
+	INFO
+	WARNING
+	ERROR
+	FATAL
+)
+
+func init() {
+	filePath := getLogFileFullPath()
+	F = openLogFile(filePath)
+	logger = log.New(F, DefaultPrefix, log.LstdFlags)
+}
+func Debug(v ...interface{}) {
+	setPrefix(DEBUG)
+	logger.Println(v)
+}
+func Info(v ...interface{}) {
+	setPrefix(INFO)
+	logger.Println(v)
+}
+func Warn(v ...interface{}) {
+	setPrefix(WARNING)
+	logger.Println(v)
+}
+func Error(v ...interface{}) {
+	setPrefix(ERROR)
+	logger.Println(v)
+}
+func Fatal(v ...interface{}) {
+	setPrefix(FATAL)
+	logger.Fatalln(v)
+}
+func setPrefix(level Level) {
+	_, file, line, ok := runtime.Caller(DefaultCallerDepth)
+	if ok {
+		logPrefix = fmt.Sprintf("[%s][%s:%d]", levelFlags[level], filepath.Base(file), line)
+	} else {
+		logPrefix = fmt.Sprintf("[%s]", levelFlags[level])
+	}
+	logger.SetPrefix(logPrefix)
+}