neo-go/pkg/config/config.go
2020-08-12 16:26:41 +03:00

58 lines
1.4 KiB
Go

package config
import (
"fmt"
"io/ioutil"
"os"
"github.com/pkg/errors"
"gopkg.in/yaml.v2"
)
const userAgentFormat = "/NEO-GO:%s/"
// Version the version of the node, set at build time.
var Version string
// Config top level struct representing the config
// for the node.
type Config struct {
ProtocolConfiguration ProtocolConfiguration `yaml:"ProtocolConfiguration"`
ApplicationConfiguration ApplicationConfiguration `yaml:"ApplicationConfiguration"`
}
// GenerateUserAgent creates user agent string based on build time environment.
func (c Config) GenerateUserAgent() string {
return fmt.Sprintf(userAgentFormat, Version)
}
// Load attempts to load the config from the given
// path for the given netMode.
func Load(path string, netMode NetMode) (Config, error) {
configPath := fmt.Sprintf("%s/protocol.%s.yml", path, netMode)
if _, err := os.Stat(configPath); os.IsNotExist(err) {
return Config{}, errors.Wrap(err, "Unable to load config")
}
configData, err := ioutil.ReadFile(configPath)
if err != nil {
return Config{}, errors.Wrap(err, "Unable to read config")
}
config := Config{
ProtocolConfiguration: ProtocolConfiguration{
SystemFee: SystemFee{},
},
ApplicationConfiguration: ApplicationConfiguration{
PingInterval: 30,
PingTimeout: 90,
},
}
err = yaml.Unmarshal(configData, &config)
if err != nil {
return Config{}, errors.Wrap(err, "Problem unmarshaling config json data")
}
return config, nil
}