constellation/cli/internal/cmd/readconfig.go

51 lines
1.0 KiB
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package cmd
import (
"errors"
"fmt"
"io"
"github.com/edgelesssys/constellation/internal/config"
"github.com/edgelesssys/constellation/internal/file"
)
func readConfig(out io.Writer, fileHandler file.Handler, name string) (*config.Config, error) {
if name == "" {
return config.Default(), nil
}
cnf, err := config.FromFile(fileHandler, name)
if err != nil {
return nil, err
}
if err := validateConfig(out, cnf); err != nil {
return nil, err
}
return cnf, nil
}
func validateConfig(out io.Writer, cnf *config.Config) error {
msgs, err := cnf.Validate()
if err != nil {
return fmt.Errorf("performing config validation: %w", err)
}
if len(msgs) > 0 {
fmt.Fprintln(out, "Invalid fields in config file:")
for _, m := range msgs {
fmt.Fprintln(out, "\t"+m)
}
fmt.Fprintln(out, "Fix the invalid entries or generate a new configuration using `constellation config generate`")
return errors.New("invalid configuration")
}
return nil
}