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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2020 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package boot
import (
"errors"
"fmt"
)
// trySnapError is an error that only applies to the try snaps where multiple
// snaps are returned, this is mainly and primarily used in revisions().
type trySnapError string
func (sre trySnapError) Error() string {
return string(sre)
}
func newTrySnapErrorf(format string, args ...any) error {
return trySnapError(fmt.Sprintf(format, args...))
}
// isTrySnapError returns true if the given error is an error resulting from
// accessing information about the try snap or the trying status.
func isTrySnapError(err error) bool {
switch err.(type) {
case trySnapError:
return true
}
return false
}
var errTrySnapFallback = errors.New("fallback to original snap")
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