add log test

go.mod

@@ -3,9 +3,6 @@ module github.com/ehlxr/log
 go 1.13
 
 require (
-	github.com/ehlxr/logger v0.0.0-20191105075740-0235eee42e0f
-	github.com/lestrrat-go/file-rotatelogs v2.2.0+incompatible
-	github.com/lestrrat-go/strftime v0.0.0-20190725011945-5c849dd2c51d // indirect
 	github.com/pkg/errors v0.8.1
 	go.uber.org/zap v1.12.0
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0

log.go

@@ -220,6 +220,7 @@ func trimCallerFilePath(ec zapcore.EntryCaller) string {
 }
 
 func fileWriteSyncer(name string) zapcore.WriteSyncer {
+	// go get github.com/lestrrat-go/file-rotatelogs
 	// writer, err := rotatelogs.New(
 	// 	name+".%Y%m%d",
 	// 	rotatelogs.WithLinkName(name),             // 生成软链，指向最新日志文件
@@ -245,7 +246,8 @@ func fileWriteSyncer(name string) zapcore.WriteSyncer {
 func writeCrashLog(file string) {
 	err := os.MkdirAll(path.Dir(file), os.ModePerm)
 	if err != nil {
-		log.Fatalf("make crash log dir error. %v", errors.WithStack(err))
+		log.Fatalf("make crash log dir error. %v",
+			errors.WithStack(err))
 	}
 
 	crash.NewCrashLog(file)