update: readme.md; mv flag to env

env.go

@@ -0,0 +1,25 @@
+package upp
+
+import (
+	"time"
+
+	"github.com/alexflint/go-arg"
+	"github.com/loveuer/upp/pkg/tool"
+)
+
+type _env struct {
+	Debug      bool   `arg:"env:DEBUG"`
+	ListenHttp string `arg:"env:LISTEN_HTTP"`
+}
+
+var env = &_env{}
+
+func init() {
+	time.Local = time.FixedZone("CST", 8*3600)
+
+	arg.MustParse(env)
+
+	if env.Debug {
+		tool.TablePrinter(env)
+	}
+}

flag.go

@@ -1,24 +0,0 @@
-package upp
-
-import (
-	"flag"
-	"time"
-)
-
-type __flag struct {
-	debug  bool
-	listen struct {
-		http string
-	}
-}
-
-var _flag = &__flag{}
-
-func init() {
-	time.Local = time.FixedZone("CST", 8*3600)
-
-	flag.BoolVar(&_flag.debug, "debug", false, "debug mode")
-	flag.StringVar(&_flag.listen.http, "listen.http", "localhost:8080", "")
-
-	flag.Parse()
-}

go.mod

@@ -23,6 +23,8 @@ require (
 
 require (
 	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/alexflint/go-arg v1.5.1 // indirect
+	github.com/alexflint/go-scalar v1.2.0 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect

go.sum

@@ -2,11 +2,16 @@ filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 gitea.com/loveuer/gredis v1.0.0 h1:fbRS8YZObcp1KV1KGj8pDpIj1WrI0W8pwU9Ny/2fJys=
 gitea.com/loveuer/gredis v1.0.0/go.mod h1:TQlubgDiyNTRXqASd/XIUrqPBLj9NZRR2DmV3V2ZyMY=
+github.com/alexflint/go-arg v1.5.1 h1:nBuWUCpuRy0snAG+uIJ6N0UvYxpxA0/ghA/AaHxlT8Y=
+github.com/alexflint/go-arg v1.5.1/go.mod h1:A7vTJzvjoaSTypg4biM5uYNTkJ27SkNTArtYXnlqVO8=
+github.com/alexflint/go-scalar v1.2.0 h1:WR7JPKkeNpnYIOfHRa7ivM21aWAdHD0gEWHCx+WQBRw=
+github.com/alexflint/go-scalar v1.2.0/go.mod h1:LoFvNMqS1CPrMVltza4LvnGKhaSpc3oyLEBUZVhhS2o=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
 github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 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=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
@@ -80,6 +85,7 @@ github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3k
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=

readme.md

@@ -13,6 +13,18 @@ app.Run(ctx)
 
 > simple example
 ```go
+var config = struct {
+	ES string
+}{}
+
+func init() {
+	flag.StringVar(&config.ES, "es", "http://es.dev:9200", "")
+
+	flag.Parse()
+
+	tool.TablePrinter(config)
+}
+
 type Record struct {
 	Id        uint64 `json:"id" gorm:"primaryKey;column:id"`
 	CreatedAt int64  `json:"created_at" gorm:"column:created_at;autoCreateTime:milli"`
@@ -20,14 +32,19 @@ type Record struct {
 }
 
 func main() {
-	app := upp.New()
+	app := upp.New(upp.Config{Debug: false})
 
 	app.With(upp.InitDB("sqlite://data.db", &Record{}))
 	app.With(upp.InitApi(api.New()))
 
+	app.With(upp.InitFn(func(u interfaces.Upp) {
+		u.UseLogger().Debug("[init] create init record")
+		u.UseDB().Create(&Record{Name: "init"})
+	}))
+
 	app.GET("/hello/:name", func(c *api.Ctx) error {
 		name := c.Param("name")
-		c.UseLogger().Info("[hello] got name = %s", name)
+		c.UseLogger().Debug("[hello] got name = %s", name)
 		record := &Record{Name: name}
 		err := c.UseDB().Create(record).Error
 		return c.JSON(map[string]any{"record": record, "err": err})
@@ -36,8 +53,11 @@ func main() {
 	app.RunSignal()
 }
 
+
 ```
-> run with flags
+> run with env
 ```sh
-go run . --debug --listen.http '0.0.0.0:8080'
+DEBUG=true go run . 
+
+DEBUG=true LISTEN_HTTP=0.0.0.0:8080 go run .
 ```

run.go

@@ -10,7 +10,7 @@ import (
 )
 
 func (u *upp) StartAPI(ctx context.Context) {
-	address := _flag.listen.http
+	address := env.ListenHttp
 	if address == "" {
 		address = u.api.config.Address
 	}

upp.go

@@ -42,13 +42,13 @@ func New(configs ...Config) *upp {
 		config = configs[0]
 	}
 
-	if config.Debug || _flag.debug {
-		log.SetLogLevel(log.LogLevelDebug)
-	}
-
 	app := &upp{
 		logger: upp_logger_pool,
-		debug:  config.Debug,
+	}
+
+	if config.Debug || env.Debug {
+		log.SetLogLevel(log.LogLevelDebug)
+		app.debug = true
 	}
 
 	return app