go-skeletor/config/provider.go

39 lines
758 B
Go

package config
import (
"arno/skeletor/service"
"github.com/pkg/errors"
)
const ServiceName service.Name = "config"
func ServiceProvider(config *Config) service.Provider {
return func(ctn *service.Container) (interface{}, error) {
return config, nil
}
}
func From(container *service.Container) (*Config, error) {
service, err := container.Service(ServiceName)
if err != nil {
return nil, errors.Wrapf(err, "error while retrieving '%s' service", ServiceName)
}
srv, ok := service.(*Config)
if !ok {
return nil, errors.Errorf("retrieved service is not a valid '%s' service", ServiceName)
}
return srv, nil
}
func Must(container *service.Container) *Config {
srv, err := From(container)
if err != nil {
panic(err)
}
return srv
}