375fd15fbf
Refactor `modules/indexer` to make it more maintainable. And it can be
easier to support more features. I'm trying to solve some of issue
searching, this is a precursor to making functional changes.
Current supported engines and the index versions:
| engines | issues | code |
| - | - | - |
| db | Just a wrapper for database queries, doesn't need version | - |
| bleve | The version of index is **2** | The version of index is **6**
|
| elasticsearch | The old index has no version, will be treated as
version **0** in this PR | The version of index is **1** |
| meilisearch | The old index has no version, will be treated as version
**0** in this PR | - |
## Changes
### Split
Splited it into mutiple packages
```text
indexer
├── internal
│ ├── bleve
│ ├── db
│ ├── elasticsearch
│ └── meilisearch
├── code
│ ├── bleve
│ ├── elasticsearch
│ └── internal
└── issues
├── bleve
├── db
├── elasticsearch
├── internal
└── meilisearch
```
- `indexer/interanal`: Internal shared package for indexer.
- `indexer/interanal/[engine]`: Internal shared package for each engine
(bleve/db/elasticsearch/meilisearch).
- `indexer/code`: Implementations for code indexer.
- `indexer/code/internal`: Internal shared package for code indexer.
- `indexer/code/[engine]`: Implementation via each engine for code
indexer.
- `indexer/issues`: Implementations for issues indexer.
### Deduplication
- Combine `Init/Ping/Close` for code indexer and issues indexer.
- ~Combine `issues.indexerHolder` and `code.wrappedIndexer` to
`internal.IndexHolder`.~ Remove it, use dummy indexer instead when the
indexer is not ready.
- Duplicate two copies of creating ES clients.
- Duplicate two copies of `indexerID()`.
### Enhancement
- [x] Support index version for elasticsearch issues indexer, the old
index without version will be treated as version 0.
- [x] Fix spell of `elastic_search/ElasticSearch`, it should be
`Elasticsearch`.
- [x] Improve versioning of ES index. We don't need `Aliases`:
- Gitea does't need aliases for "Zero Downtime" because it never delete
old indexes.
- The old code of issues indexer uses the orignal name to create issue
index, so it's tricky to convert it to an alias.
- [x] Support index version for meilisearch issues indexer, the old
index without version will be treated as version 0.
- [x] Do "ping" only when `Ping` has been called, don't ping
periodically and cache the status.
- [x] Support the context parameter whenever possible.
- [x] Fix outdated example config.
- [x] Give up the requeue logic of issues indexer: When indexing fails,
call Ping to check if it was caused by the engine being unavailable, and
only requeue the task if the engine is unavailable.
- It is fragile and tricky, could cause data losing (It did happen when
I was doing some tests for this PR). And it works for ES only.
- Just always requeue the failed task, if it caused by bad data, it's a
bug of Gitea which should be fixed.
---------
Co-authored-by: Giteabot <teabot@gitea.io>
90 lines
1.7 KiB
Go
90 lines
1.7 KiB
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package bleve
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import (
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"context"
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"testing"
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"code.gitea.io/gitea/modules/indexer/issues/internal"
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"github.com/stretchr/testify/assert"
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)
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func TestBleveIndexAndSearch(t *testing.T) {
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dir := t.TempDir()
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indexer := NewIndexer(dir)
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defer indexer.Close()
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if _, err := indexer.Init(context.Background()); err != nil {
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assert.Fail(t, "Unable to initialize bleve indexer: %v", err)
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return
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}
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err := indexer.Index(context.Background(), []*internal.IndexerData{
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{
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ID: 1,
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RepoID: 2,
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Title: "Issue search should support Chinese",
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Content: "As title",
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Comments: []string{
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"test1",
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"test2",
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},
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},
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{
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ID: 2,
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RepoID: 2,
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Title: "CJK support could be optional",
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Content: "Chinese Korean and Japanese should be supported but I would like it's not enabled by default",
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Comments: []string{
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"LGTM",
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"Good idea",
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},
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},
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})
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assert.NoError(t, err)
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keywords := []struct {
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Keyword string
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IDs []int64
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}{
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{
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Keyword: "search",
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IDs: []int64{1},
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},
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{
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Keyword: "test1",
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IDs: []int64{1},
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},
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{
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Keyword: "test2",
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IDs: []int64{1},
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},
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{
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Keyword: "support",
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IDs: []int64{1, 2},
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},
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{
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Keyword: "chinese",
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IDs: []int64{1, 2},
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},
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{
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Keyword: "help",
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IDs: []int64{},
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},
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}
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for _, kw := range keywords {
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res, err := indexer.Search(context.TODO(), kw.Keyword, []int64{2}, 10, 0)
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assert.NoError(t, err)
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ids := make([]int64, 0, len(res.Hits))
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for _, hit := range res.Hits {
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ids = append(ids, hit.ID)
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}
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assert.ElementsMatch(t, kw.IDs, ids)
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}
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}
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