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versions.go
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versions.go
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/*
* Copyright (c) 2019-2021. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
package config
import (
"fmt"
"strconv"
"time"
"github.com/pydio/cells/x/configx"
"github.com/pydio/cells/x/filex"
)
type versionStore struct {
filex.VersionsStore
store Store
}
// NewVersionStore based on a file Version Store and a store
func NewVersionStore(vs filex.VersionsStore, store Store) Store {
return &versionStore{
vs,
store,
}
}
// RegisterVersionStore sets the default version store
func RegisterVersionStore(store filex.VersionsStore) {
VersionsStore = store
}
// Val of the path
func (v *versionStore) Val(path ...string) configx.Values {
return v.store.Val(path...)
}
// Get access to the underlying structure at a certain path
func (v *versionStore) Get() configx.Value {
return v.store.Get()
}
// Set new value
func (v *versionStore) Set(data interface{}) error {
return v.store.Set(data)
}
// Del version store
func (v *versionStore) Del() error {
return v.store.Del()
}
// Watch config changes under a path
func (v *versionStore) Watch(path ...string) (configx.Receiver, error) {
watcher, ok := v.store.(configx.Watcher)
if !ok {
return nil, fmt.Errorf("no watchers")
}
return watcher.Watch(path...)
}
// Save the config in the underlying storage
func (v *versionStore) Save(ctxUser string, ctxMessage string) error {
data := v.store.Val().Map()
if err := VersionsStore.Put(&filex.Version{
Date: time.Now(),
User: ctxUser,
Log: ctxMessage,
Data: data,
}); err != nil {
return err
}
return v.store.Save(ctxUser, ctxMessage)
}
type configStore struct {
store Store
}
func NewConfigStore(values Store) (filex.VersionsStore, error) {
return &configStore{
values,
}, nil
}
// Put stores version in Bolt
func (s *configStore) Put(version *filex.Version) error {
var versions []*filex.Version
v := s.store.Val()
if err := v.Scan(&versions); err != nil {
return err
}
version.Id = uint64(len(versions))
versions = append(versions, version)
return s.store.Set(versions)
}
// List all version starting at a given id
func (s *configStore) List(offset uint64, limit uint64) (result []*filex.Version, err error) {
var versions []*filex.Version
if err := s.store.Val().Scan(&versions); err != nil {
return nil, err
}
return versions, nil
}
// Retrieve loads data from db by version ID
func (s *configStore) Retrieve(id uint64) (*filex.Version, error) {
var version *filex.Version
if err := s.store.Val(strconv.Itoa(int(id))).Scan(&version); err != nil {
return nil, err
}
return version, nil
}