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utils.go
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utils.go
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// Copyright (c) 2022 Lukasz Janyst <lukasz@jany.st>
//
// This file is part of Peroxide.
//
// Peroxide 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.
//
// Peroxide 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 Peroxide. If not, see <https://www.gnu.org/licenses/>.
package store
import (
"encoding/json"
"io/ioutil"
"os"
"path/filepath"
"github.com/ljanyst/peroxide/pkg/files"
)
const Version = "c11"
type StoreInfo struct {
StoreVersion string
}
func recreateStore(storeDir, storeInfoPath string) error {
if err := files.Remove(storeDir).Do(); err != nil {
return err
}
if err := os.MkdirAll(storeDir, 0700); err != nil {
return err
}
f, err := os.Create(storeInfoPath)
if err != nil {
return err
}
defer f.Close()
return json.NewEncoder(f).Encode(StoreInfo{Version})
}
func ClearIncompatibleStore(storeDir string) error {
storeInfoPath := filepath.Join(storeDir, "store_info.json")
data, err := ioutil.ReadFile(storeInfoPath)
if err != nil {
return recreateStore(storeDir, storeInfoPath)
}
var info StoreInfo
if err := json.Unmarshal(data, &info); err != nil {
// Nuke the store if we can't unmarshal the info
return recreateStore(storeDir, storeInfoPath)
}
if info.StoreVersion != Version {
return recreateStore(storeDir, storeInfoPath)
}
return nil
}