func (x *cmdRollback) doRollback() error {
pkg := x.Positional.PackageName
version := x.Positional.Version
if pkg == "" {
return errNeedPackageName
}
nowVersion, err := snappy.Rollback(pkg, version, progress.MakeProgressBar())
if err != nil {
return err
}
// TRANSLATORS: the first %s is a pkgname, the second %s is the new version
fmt.Printf(i18n.G("Setting %s to version %s\n"), pkg, nowVersion)
m := snappy.NewMetaRepository()
installed, err := m.Installed()
if err != nil {
return err
}
parts := snappy.FindSnapsByNameAndVersion(pkg, nowVersion, installed)
showVerboseList(parts, os.Stdout)
return nil
}
func (inst *snapInstruction) rollback() interface{} {
_, err := snappy.Rollback(inst.pkg, "", inst)
return err
}
func (inst *packageInstruction) rollback() interface{} {
_, err := snappy.Rollback(inst.pkg, "", inst.prog)
return err
}