package transform import ( "fmt" "reflect" "strconv" "strings" json "github.com/ghodss/yaml" "gopkg.in/yaml.v2" ) // argsToEnv uses reflection to convert a map[string]interface to a list // of environment variables. func argsToEnv(from map[string]interface{}, to map[string]string) error { for k, v := range from { t := reflect.TypeOf(v) vv := reflect.ValueOf(v) k = "PLUGIN_" + strings.ToUpper(k) switch t.Kind() { case reflect.Bool: to[k] = strconv.FormatBool(vv.Bool()) case reflect.String: to[k] = vv.String() case reflect.Int, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int8: to[k] = fmt.Sprintf("%v", vv.Int()) case reflect.Float32, reflect.Float64: to[k] = fmt.Sprintf("%v", vv.Float()) case reflect.Map: yml, _ := yaml.Marshal(vv.Interface()) out, _ := json.YAMLToJSON(yml) to[k] = string(out) case reflect.Slice: out, err := yaml.Marshal(vv.Interface()) if err != nil { return err } in := []string{} err = yaml.Unmarshal(out, &in) if err == nil { to[k] = strings.Join(in, ",") } else { out, err = json.YAMLToJSON(out) if err != nil { return err } to[k] = string(out) } } } return nil }