Refactor component/extras into snapshotting

internal/component/extras/config.go

@@ -1,43 +0,0 @@
-package extras
-
-import (
-	"path/filepath"
-
-	"github.com/FAU-CDI/wisski-distillery/internal/component"
-)
-
-// Config implements backing up configuration
-type Config struct {
-	component.ComponentBase
-}
-
-func (Config) Name() string { return "config" }
-
-func (*Config) BackupName() string {
-	return "config"
-}
-
-func (control *Config) Backup(context component.StagingContext) error {
-	files := control.backupFiles()
-
-	return context.AddDirectory("", func() error {
-		for _, src := range files {
-			name := filepath.Base(src)
-			if err := context.CopyFile(name, src); err != nil {
-				return err
-			}
-		}
-		return nil
-	})
-}
-
-// backupfiles lists the files to be backed up.
-func (control *Config) backupFiles() []string {
-	return []string{
-		control.Config.ConfigPath,
-		control.Config.ExecutablePath(),
-		control.Config.SelfOverridesFile,
-		control.Config.SelfResolverBlockFile,
-		control.Config.GlobalAuthorizedKeysFile,
-	}
-}