5ef08f60ae
It's not needed any more with Go 1.13 as we have wrapping/unwrapping in base packages. All errors.Wrap calls are replaced with fmt.Errorf, some strings are improved along the way.
60 lines
1.5 KiB
Go
60 lines
1.5 KiB
Go
package config
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import (
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"fmt"
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"io/ioutil"
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"os"
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"github.com/go-yaml/yaml"
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"github.com/nspcc-dev/neo-go/pkg/config/netmode"
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)
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const userAgentFormat = "/NEO-GO:%s/"
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// Version the version of the node, set at build time.
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var Version string
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// Config top level struct representing the config
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// for the node.
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type Config struct {
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ProtocolConfiguration ProtocolConfiguration `yaml:"ProtocolConfiguration"`
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ApplicationConfiguration ApplicationConfiguration `yaml:"ApplicationConfiguration"`
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}
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// GenerateUserAgent creates user agent string based on build time environment.
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func (c Config) GenerateUserAgent() string {
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return fmt.Sprintf(userAgentFormat, Version)
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}
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// Load attempts to load the config from the given
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// path for the given netMode.
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func Load(path string, netMode netmode.Magic) (Config, error) {
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configPath := fmt.Sprintf("%s/protocol.%s.yml", path, netMode)
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return LoadFile(configPath)
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}
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// LoadFile loads config from the provided path.
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func LoadFile(configPath string) (Config, error) {
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if _, err := os.Stat(configPath); os.IsNotExist(err) {
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return Config{}, fmt.Errorf("config '%s' doesn't exist", configPath)
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}
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configData, err := ioutil.ReadFile(configPath)
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if err != nil {
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return Config{}, fmt.Errorf("unable to read config: %w", err)
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}
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config := Config{
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ApplicationConfiguration: ApplicationConfiguration{
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PingInterval: 30,
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PingTimeout: 90,
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},
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}
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err = yaml.Unmarshal(configData, &config)
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if err != nil {
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return Config{}, fmt.Errorf("failed to unmarshal config YAML: %w", err)
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}
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return config, nil
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}
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