proton-bridge/internal/vault/migrate.go

48 lines
1.2 KiB
Go

// Copyright (c) 2022 Proton AG
//
// This file is part of Proton Mail Bridge.
//
// Proton Mail Bridge is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Proton Mail Bridge 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 Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
package vault
import "fmt"
type Version int
const (
v2_3_x Version = iota
v2_4_x
v2_5_x
Current = v2_5_x
)
// upgrade migrates the vault from the given version to the next version.
func upgrade(v Version, b []byte) ([]byte, error) {
switch v {
case v2_3_x:
return upgrade_2_3_x(b)
case v2_4_x:
return upgrade_2_4_x(b)
case Current:
return nil, fmt.Errorf("already at current version %d", Current)
default:
return nil, fmt.Errorf("unknown version %d", v)
}
}