mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-04 14:46:57 -05:00
117 lines
2.8 KiB
Go
Vendored
117 lines
2.8 KiB
Go
Vendored
// Copyright (c) 2014 Couchbase, Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package bleve
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"github.com/blevesearch/bleve/v2/index/upsidedown"
|
|
index "github.com/blevesearch/bleve_index_api"
|
|
)
|
|
|
|
const metaFilename = "index_meta.json"
|
|
|
|
type indexMeta struct {
|
|
Storage string `json:"storage"`
|
|
IndexType string `json:"index_type"`
|
|
Config map[string]interface{} `json:"config,omitempty"`
|
|
}
|
|
|
|
func newIndexMeta(indexType string, storage string, config map[string]interface{}) *indexMeta {
|
|
return &indexMeta{
|
|
IndexType: indexType,
|
|
Storage: storage,
|
|
Config: config,
|
|
}
|
|
}
|
|
|
|
func openIndexMeta(path string) (*indexMeta, error) {
|
|
if _, err := os.Stat(path); os.IsNotExist(err) {
|
|
return nil, ErrorIndexPathDoesNotExist
|
|
}
|
|
indexMetaPath := indexMetaPath(path)
|
|
metaBytes, err := ioutil.ReadFile(indexMetaPath)
|
|
if err != nil {
|
|
return nil, ErrorIndexMetaMissing
|
|
}
|
|
var im indexMeta
|
|
err = json.Unmarshal(metaBytes, &im)
|
|
if err != nil {
|
|
return nil, ErrorIndexMetaCorrupt
|
|
}
|
|
if im.IndexType == "" {
|
|
im.IndexType = upsidedown.Name
|
|
}
|
|
return &im, nil
|
|
}
|
|
|
|
func (i *indexMeta) Save(path string) (err error) {
|
|
indexMetaPath := indexMetaPath(path)
|
|
// ensure any necessary parent directories exist
|
|
err = os.MkdirAll(path, 0700)
|
|
if err != nil {
|
|
if os.IsExist(err) {
|
|
return ErrorIndexPathExists
|
|
}
|
|
return err
|
|
}
|
|
metaBytes, err := json.Marshal(i)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
indexMetaFile, err := os.OpenFile(indexMetaPath, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
|
|
if err != nil {
|
|
if os.IsExist(err) {
|
|
return ErrorIndexPathExists
|
|
}
|
|
return err
|
|
}
|
|
defer func() {
|
|
if ierr := indexMetaFile.Close(); err == nil && ierr != nil {
|
|
err = ierr
|
|
}
|
|
}()
|
|
_, err = indexMetaFile.Write(metaBytes)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (i *indexMeta) CopyTo(d index.Directory) (err error) {
|
|
metaBytes, err := json.Marshal(i)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
w, err := d.GetWriter(metaFilename)
|
|
if w == nil || err != nil {
|
|
return fmt.Errorf("invalid writer for file: %s, err: %v",
|
|
metaFilename, err)
|
|
}
|
|
defer w.Close()
|
|
|
|
_, err = w.Write(metaBytes)
|
|
return err
|
|
}
|
|
|
|
func indexMetaPath(path string) string {
|
|
return filepath.Join(path, metaFilename)
|
|
}
|