constellation/cli/internal/cmd/configmigrate.go

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/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package cmd
import (
"fmt"
"github.com/edgelesssys/constellation/v2/internal/config"
"github.com/edgelesssys/constellation/v2/internal/config/migration"
"github.com/edgelesssys/constellation/v2/internal/file"
"github.com/spf13/afero"
"github.com/spf13/cobra"
)
func newConfigMigrateCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "migrate",
Short: "Migrate a configuration file to a new version",
Long: "Migrate a configuration file to a new version.",
Args: cobra.NoArgs,
RunE: runConfigMigrate,
}
return cmd
}
func runConfigMigrate(cmd *cobra.Command, _ []string) error {
handler := file.NewHandler(afero.NewOsFs())
configPath, err := cmd.Flags().GetString("config")
if err != nil {
return fmt.Errorf("parsing config path flag: %w", err)
}
return configMigrate(cmd, configPath, handler)
}
func configMigrate(cmd *cobra.Command, configPath string, handler file.Handler) error {
// Make sure we are reading a v2 config
var cfgVersion struct {
Version string `yaml:"version"`
}
if err := handler.ReadYAML(configPath, &cfgVersion); err != nil {
return err
}
switch cfgVersion.Version {
case config.Version3:
cmd.Printf("Config already at version %s, nothing to do\n", config.Version3)
return nil
case migration.Version2:
if err := migration.V2ToV3(configPath, handler); err != nil {
return fmt.Errorf("migrating config: %w", err)
}
cmd.Printf("Successfully migrated config to %s\n", config.Version3)
return nil
default:
return fmt.Errorf("cannot convert config version %s to %s", cfgVersion.Version, config.Version3)
}
}