diff --git a/flag/flag.go b/flag/flag.go
new file mode 100644
index 0000000..ec1cdc6
--- /dev/null
+++ b/flag/flag.go
@@ -0,0 +1,44 @@
+package flag
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/urfave/cli/v2"
+)
+
+var (
+	app     = cli.NewApp()
+	actions []cli.ActionFunc
+)
+
+func init() {
+	app.Name = filepath.Base(os.Args[0])
+	app.HideHelp = true
+	app.Action = action
+}
+
+func action(ctx *cli.Context) error {
+	if ctx.Bool("help") {
+		cli.ShowAppHelpAndExit(ctx, 0)
+	}
+
+	for _, fn := range actions {
+		if err := fn(ctx); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func Add(flag cli.Flag, fn cli.ActionFunc) {
+	app.Flags = append(app.Flags, flag)
+	if fn != nil {
+		actions = append(actions, fn)
+	}
+}
+
+func Run() error {
+	app.Flags = append(app.Flags, cli.HelpFlag)
+	return app.Run(os.Args)
+}
diff --git a/go.mod b/go.mod
index 252b68d..28035c1 100644
--- a/go.mod
+++ b/go.mod
@@ -16,6 +16,7 @@ require (
 	github.com/shopspring/decimal v1.2.0
 	github.com/stretchr/testify v1.6.1
 	github.com/tidwall/gjson v1.6.1
+	github.com/urfave/cli/v2 v2.2.0
 	golang.org/x/net v0.0.0-20200923182212-328152dc79b1
 	xorm.io/xorm v1.0.5
 )
diff --git a/go.sum b/go.sum
index 924568d..1930854 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,7 @@
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 gitea.com/xorm/sqlfiddle v0.0.0-20180821085327-62ce714f951a h1:lSA0F4e9A2NcQSqGqTOXqu2aRi/XEQxDCBwM8yJtE6s=
 gitea.com/xorm/sqlfiddle v0.0.0-20180821085327-62ce714f951a/go.mod h1:EXuID2Zs0pAQhH8yz+DNjUbjppKQzKFAn28TMYPB6IU=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/DATA-DOG/go-sqlmock v1.3.3 h1:CWUqKXe0s8A2z6qCgkP4Kru7wC11YoAnoupUKFDnH08=
 github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
@@ -10,6 +11,8 @@ github.com/bsm/redislock v0.6.0 h1:eAzUAcN8EN1cbJAwSRTUvORfaEe9o8GFwNkNXMecegY=
 github.com/bsm/redislock v0.6.0/go.mod h1:3Kgu+cXw0JrkZ5pmY/JbcFpixGZ5M9v9G2PGWYqku+k=
 github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d h1:U+s90UTSYgptZMwQh2aRr3LuazLJIa+Pg3Kc1ylSYVY=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -97,8 +100,12 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/robfig/cron/v3 v3.0.1 h1:WdRxkvbJztn8LMz/QEvLN5sBU+xKpSqwwUO1Pjr4qDs=
 github.com/robfig/cron/v3 v3.0.1/go.mod h1:eQICP3HwyT7UooqI/z+Ov+PtYAWygg1TEWWzGIFLtro=
+github.com/russross/blackfriday/v2 v2.0.1 h1:lPqVAte+HuHNfhJ/0LC98ESWRz8afy9tM/0RK8m9o+Q=
+github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/shopspring/decimal v1.2.0 h1:abSATXmQEYyShuxI4/vyW3tV1MrKAJzCZ/0zLUXYbsQ=
 github.com/shopspring/decimal v1.2.0/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
+github.com/shurcooL/sanitized_anchor_name v1.0.0 h1:PdmoCO6wvbs+7yrJyMORt4/BmY5IYyJwS/kOiWx8mHo=
+github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
@@ -113,6 +120,8 @@ github.com/tidwall/match v1.0.1 h1:PnKP62LPNxHKTwvHHZZzdOAOCtsJTjo6dZLCwpKm5xc=
 github.com/tidwall/match v1.0.1/go.mod h1:LujAq0jyVjBy028G1WhWfIzbpQfMO8bBZ6Tyb0+pL9E=
 github.com/tidwall/pretty v1.0.2 h1:Z7S3cePv9Jwm1KwS0513MRaoUe3S01WPbLNV40pwWZU=
 github.com/tidwall/pretty v1.0.2/go.mod h1:XNkn88O1ChpSDQmQeStsy+sBenx6DDtFZJxhVysOjyk=
+github.com/urfave/cli/v2 v2.2.0 h1:JTTnM6wKzdA0Jqodd966MVj4vWbbquZykeX1sKbe2C4=
+github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
 github.com/ziutek/mymysql v1.5.4/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0=
 go.opentelemetry.io/otel v0.11.0 h1:IN2tzQa9Gc4ZVKnTaMbPVcHjvzOdg5n9QfnmlqiET7E=
 go.opentelemetry.io/otel v0.11.0/go.mod h1:G8UCk+KooF2HLkgo8RHX9epABH/aRGYET7gQOqBVdB0=
diff --git a/log/log.go b/log/log.go
index 3fe5b77..ddb593c 100644
--- a/log/log.go
+++ b/log/log.go
@@ -5,9 +5,11 @@ import (
 	"os"
 	"path/filepath"
 
+	"github.com/gxxgle/go-utils/flag"
 	"github.com/gxxgle/go-utils/path"
 
 	"github.com/phuslu/log"
+	"github.com/urfave/cli/v2"
 )
 
 var (
@@ -19,6 +21,44 @@ func init() {
 	log.DefaultLogger.Caller = 1
 }
 
+func InitFromFlag() {
+	flag.Add(&cli.StringFlag{
+		Name:    "log_level",
+		Usage:   "set log level. (debug, info, error)",
+		EnvVars: []string{"LOG_LEVEL"},
+		Value:   "info",
+	}, func(ctx *cli.Context) error {
+		lvl := log.ParseLevel(ctx.String("log_level"))
+		if lvl >= log.TraceLevel && lvl <= log.PanicLevel {
+			log.DefaultLogger.SetLevel(lvl)
+		}
+		return nil
+	})
+
+	flag.Add(&cli.StringFlag{
+		Name:    "log_type",
+		Usage:   "set log type. (json, console, color_console)",
+		EnvVars: []string{"LOG_TYPE"},
+		Value:   "json",
+	}, func(ctx *cli.Context) error {
+		switch ctx.String("log_type") {
+		case "console":
+			Console()
+		case "color_console":
+			ColorConsole()
+		}
+		return nil
+	})
+}
+
+func Console() {
+	log.DefaultLogger.Writer = &log.ConsoleWriter{
+		ColorOutput:    false,
+		QuoteString:    false,
+		EndWithMessage: false,
+	}
+}
+
 func ColorConsole() {
 	log.DefaultLogger.Writer = &log.ConsoleWriter{
 		ColorOutput:    true,