83 lines
1.4 KiB
Go
83 lines
1.4 KiB
Go
package config
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import (
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"errors"
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"fmt"
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"strings"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/util/config"
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"github.com/spf13/viper"
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)
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const (
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Separator = "."
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// EnvSeparator is a section separator in ENV variables.
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EnvSeparator = "_"
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)
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var errProvideViperInOpts = errors.New("provide viper in opts")
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func CreateViper(opts ...Option) (*viper.Viper, error) {
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o := defaultOpts()
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for i := range opts {
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opts[i](o)
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}
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var v *viper.Viper
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if o.v != nil {
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v = o.v
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} else {
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v = viper.New()
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}
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if o.envPrefix != "" {
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v.SetEnvPrefix(o.envPrefix)
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v.AutomaticEnv()
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v.SetEnvKeyReplacer(strings.NewReplacer(Separator, EnvSeparator))
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}
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if o.path != "" {
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v.SetConfigFile(o.path)
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err := v.ReadInConfig()
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if err != nil {
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return nil, fmt.Errorf("failed to read config: %w", err)
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}
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}
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if o.configDir != "" {
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if err := config.ReadConfigDir(v, o.configDir); err != nil {
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return nil, fmt.Errorf("failed to read config dir: %w", err)
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}
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}
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return v, nil
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}
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func ReloadViper(opts ...Option) error {
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o := defaultOpts()
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for i := range opts {
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opts[i](o)
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}
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if o.v == nil {
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return errProvideViperInOpts
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}
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if o.path != "" {
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err := o.v.ReadInConfig()
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if err != nil {
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return fmt.Errorf("rereading configuration file: %w", err)
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}
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}
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if o.configDir != "" {
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if err := config.ReadConfigDir(o.v, o.configDir); err != nil {
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return fmt.Errorf("rereading configuration dir: %w", err)
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}
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}
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return nil
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}
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