130 lines
2.7 KiB
Go
130 lines
2.7 KiB
Go
package uzone
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import (
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"fmt"
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"github.com/spf13/cast"
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"gopkg.in/yaml.v3"
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"os"
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"reflect"
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"time"
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"github.com/loveuer/uzone/pkg/tool"
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)
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type _property struct {
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Debug bool `yaml:"debug" json:"debug" env:"UZONE.DEBUG"`
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Listen struct {
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Http string `yaml:"http" json:"http" env:"UZONE.LISTEN.HTTP"`
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} `yaml:"listen" json:"listen"`
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DB struct {
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URI string `json:"uri" env:"UZONE.DB.URI"`
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} `yaml:"db" json:"db"`
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Cache struct {
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URI string `json:"uri" env:"UZONE.CACHE.URI"`
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} `yaml:"cache" json:"cache"`
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Elasticsearch struct {
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URI string `yaml:"uri" json:"uri" env:"UZONE.ELASTICSEARCH.URI"`
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} `yaml:"elasticsearch" json:"elasticsearch"`
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}
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var property = &_property{}
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func init() {
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time.Local = time.FixedZone("CST", 8*3600)
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var (
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err error
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bs []byte
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configFn = func(path string) error {
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if bs, err = os.ReadFile(path); err != nil {
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uzone_logger_pool.Get().(*uzone_logger).Debug("[%30s] read %s err, err = %s", "init", path, err.Error())
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return err
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}
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if err = yaml.Unmarshal(bs, property); err != nil {
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uzone_logger_pool.Get().(*uzone_logger).Debug("[%30s] unmarshal %s err, err = %s", "init", path, err.Error())
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return err
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}
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return nil
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}
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)
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if err = configFn("etc/config.yaml"); err == nil {
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goto BindEnv
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}
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if err = configFn("etc/config.yml"); err == nil {
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goto BindEnv
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}
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_ = configFn("etc/config.json")
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BindEnv:
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_ = bindEnv(property)
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if property.Debug {
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tool.TablePrinter(property)
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}
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}
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func bindEnv(data any) error {
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rv := reflect.ValueOf(data)
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if rv.Type().Kind() != reflect.Pointer {
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return fmt.Errorf("can only bind ptr")
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}
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rv = rv.Elem()
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return bindStruct(rv)
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}
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func bindStruct(rv reflect.Value) error {
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if rv.Type().Kind() != reflect.Struct {
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return fmt.Errorf("can only bind struct ptr")
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}
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for i := 0; i < rv.NumField(); i++ {
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f := rv.Field(i)
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if f.Type().Kind() == reflect.Pointer {
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f = f.Elem()
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}
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if f.Type().Kind() == reflect.Struct {
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return bindStruct(f)
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}
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if !f.CanSet() {
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continue
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}
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tag := rv.Type().Field(i).Tag.Get("env")
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if tag == "" || tag == "-" {
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continue
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}
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bv := os.Getenv(tag)
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if bv == "" {
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continue
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}
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switch f.Type().Kind() {
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case reflect.String:
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f.SetString(bv)
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case reflect.Bool:
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f.SetBool(cast.ToBool(bv))
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case reflect.Int64, reflect.Int, reflect.Uint64, reflect.Uint, reflect.Int32, reflect.Uint32, reflect.Int16, reflect.Uint16, reflect.Int8, reflect.Uint8:
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f.SetInt(cast.ToInt64(bv))
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case reflect.Float64, reflect.Float32:
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f.SetFloat(cast.ToFloat64(bv))
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default:
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uzone_logger_pool.Get().(*uzone_logger).Warn("[%30s] unsupported env binding, type = %s, value = %s", "init", f.Type().Kind().String(), bv)
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}
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}
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return nil
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}
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