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// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package bleve
import (
"errors"
"os"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
"github.com/blevesearch/bleve/v2"
"github.com/blevesearch/bleve/v2/index/upsidedown"
)
// openIndexer open the index at the specified path, checking for metadata
// updates and bleve version updates. If index needs to be created (or
// re-created), returns (nil, nil)
func openIndexer(path string, latestVersion int) (bleve.Index, int, error) {
_, err := os.Stat(path)
if err != nil && os.IsNotExist(err) {
return nil, 0, nil
} else if err != nil {
return nil, 0, err
}
metadata, err := readIndexMetadata(path)
if err != nil {
return nil, 0, err
}
if metadata.Version < latestVersion {
// the indexer is using a previous version, so we should delete it and
// re-populate
return nil, metadata.Version, util.RemoveAll(path)
}
index, err := bleve.Open(path)
if err != nil {
if errors.Is(err, upsidedown.IncompatibleVersion) {
log.Warn("Indexer was built with a previous version of bleve, deleting and rebuilding")
return nil, 0, util.RemoveAll(path)
}
return nil, 0, err
}
return index, 0, nil
}
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