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package rpc
import (
"github.com/roadrunner-server/errors"
"github.com/spf13/viper"
)
const (
versionKey string = "version"
includeKey string = "include"
defaultConfigVersion string = "3"
prevConfigVersion string = "2.7"
)
func getConfiguration(path string) (map[string]any, string, error) {
v := viper.New()
v.SetConfigFile(path)
err := v.ReadInConfig()
if err != nil {
return nil, "", err
}
// get configuration version
ver := v.Get(versionKey)
if ver == nil {
return nil, "", errors.Str("rr configuration file should contain a version e.g: version: 2.7")
}
if _, ok := ver.(string); !ok {
return nil, "", errors.Errorf("type of version should be string, actual: %T", ver)
}
// automatically inject ENV variables using ${ENV} pattern
expandEnvViper(v)
return v.AllSettings(), ver.(string), nil
}
func handleInclude(rootVersion string, v *viper.Viper) error {
// automatically inject ENV variables using ${ENV} pattern
// root config
expandEnvViper(v)
ifiles := v.GetStringSlice(includeKey)
if ifiles == nil {
return nil
}
for _, file := range ifiles {
config, version, err := getConfiguration(file)
if err != nil {
return err
}
if version != rootVersion {
return errors.Str("version in included file must be the same as in root")
}
// overriding configuration
for key, val := range config {
v.Set(key, val)
}
}
return nil
}
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