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Refactor indexer (#25174) 

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>
This commit is contained in:
Jason Song 2023-06-23 20:37:56 +08:00 committed by GitHub
parent b0215c40cd
commit 375fd15fbf
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
43 changed files with 1374 additions and 1426 deletions
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6
custom/conf/app.example.ini
View File

@ -1334,10 +1334,10 @@ LEVEL = Info
;; Issue indexer storage path, available when ISSUE_INDEXER_TYPE is bleve
;ISSUE_INDEXER_PATH = indexers/issues.bleve ; Relative paths will be made absolute against _`AppWorkPath`_.
;;
;; Issue indexer connection string, available when ISSUE_INDEXER_TYPE is elasticsearch or meilisearch
;ISSUE_INDEXER_CONN_STR = http://elastic:changeme@localhost:9200
;; Issue indexer connection string, available when ISSUE_INDEXER_TYPE is elasticsearch (e.g. http://elastic:password@localhost:9200) or meilisearch (e.g. http://:apikey@localhost:7700)
;ISSUE_INDEXER_CONN_STR =
;;
;; Issue indexer name, available when ISSUE_INDEXER_TYPE is elasticsearch
;; Issue indexer name, available when ISSUE_INDEXER_TYPE is elasticsearch or meilisearch.
;ISSUE_INDEXER_NAME = gitea_issues
;;
;; Timeout the indexer if it takes longer than this to start.

6
docs/content/doc/administration/config-cheat-sheet.en-us.md
View File

@ -458,15 +458,15 @@ relation to port exhaustion.
## Indexer (`indexer`)
- `ISSUE_INDEXER_TYPE`: **bleve**: Issue indexer type, currently supported: `bleve`, `db`, `elasticsearch` or `meilisearch`.
- `ISSUE_INDEXER_CONN_STR`: ****: Issue indexer connection string, available when ISSUE_INDEXER_TYPE is elasticsearch, or meilisearch. i.e. http://elastic:changeme@localhost:9200
- `ISSUE_INDEXER_NAME`: **gitea_issues**: Issue indexer name, available when ISSUE_INDEXER_TYPE is elasticsearch
- `ISSUE_INDEXER_CONN_STR`: ****: Issue indexer connection string, available when ISSUE_INDEXER_TYPE is elasticsearch (e.g. http://elastic:password@localhost:9200) or meilisearch (e.g. http://:apikey@localhost:7700)
- `ISSUE_INDEXER_NAME`: **gitea_issues**: Issue indexer name, available when ISSUE_INDEXER_TYPE is elasticsearch or meilisearch.
- `ISSUE_INDEXER_PATH`: **indexers/issues.bleve**: Index file used for issue search; available when ISSUE_INDEXER_TYPE is bleve and elasticsearch. Relative paths will be made absolute against _`AppWorkPath`_.
- `REPO_INDEXER_ENABLED`: **false**: Enables code search (uses a lot of disk space, about 6 times more than the repository size).
- `REPO_INDEXER_REPO_TYPES`: **sources,forks,mirrors,templates**: Repo indexer units. The items to index could be `sources`, `forks`, `mirrors`, `templates` or any combination of them separated by a comma. If empty then it defaults to `sources` only, as if you'd like to disable fully please see `REPO_INDEXER_ENABLED`.
- `REPO_INDEXER_TYPE`: **bleve**: Code search engine type, could be `bleve` or `elasticsearch`.
- `REPO_INDEXER_PATH`: **indexers/repos.bleve**: Index file used for code search.
- `REPO_INDEXER_CONN_STR`: ****: Code indexer connection string, available when `REPO_INDEXER_TYPE` is elasticsearch. i.e. http://elastic:changeme@localhost:9200
- `REPO_INDEXER_CONN_STR`: ****: Code indexer connection string, available when `REPO_INDEXER_TYPE` is elasticsearch. i.e. http://elastic:password@localhost:9200
- `REPO_INDEXER_NAME`: **gitea_codes**: Code indexer name, available when `REPO_INDEXER_TYPE` is elasticsearch
- `REPO_INDEXER_INCLUDE`: **empty**: A comma separated list of glob patterns (see https://github.com/gobwas/glob) to **include** in the index. Use `**.txt` to match any files with .txt extension. An empty list means include all files.

2
modules/context/repo.go
View File

@ -593,7 +593,7 @@ func RepoAssignment(ctx *Context) (cancel context.CancelFunc) {
ctx.Data["RepoSearchEnabled"] = setting.Indexer.RepoIndexerEnabled
if setting.Indexer.RepoIndexerEnabled {
ctx.Data["CodeIndexerUnavailable"] = !code_indexer.IsAvailable()
ctx.Data["CodeIndexerUnavailable"] = !code_indexer.IsAvailable(ctx)
}
if ctx.IsSigned {

156
modules/indexer/code/bleve.go → modules/indexer/code/bleve/bleve.go
View File

@ -1,14 +1,13 @@
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package code
package bleve
import (
"bufio"
"context"
"fmt"
"io"
"os"
"strconv"
"strings"
"time"
@ -17,12 +16,13 @@ import (
"code.gitea.io/gitea/modules/analyze"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/git"
gitea_bleve "code.gitea.io/gitea/modules/indexer/bleve"
"code.gitea.io/gitea/modules/indexer/code/internal"
indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
inner_bleve "code.gitea.io/gitea/modules/indexer/internal/bleve"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/typesniffer"
"code.gitea.io/gitea/modules/util"
"github.com/blevesearch/bleve/v2"
analyzer_custom "github.com/blevesearch/bleve/v2/analysis/analyzer/custom"
@ -31,10 +31,8 @@ import (
"github.com/blevesearch/bleve/v2/analysis/token/lowercase"
"github.com/blevesearch/bleve/v2/analysis/token/unicodenorm"
"github.com/blevesearch/bleve/v2/analysis/tokenizer/unicode"
"github.com/blevesearch/bleve/v2/index/upsidedown"
"github.com/blevesearch/bleve/v2/mapping"
"github.com/blevesearch/bleve/v2/search/query"
"github.com/ethantkoenig/rupture"
"github.com/go-enry/go-enry/v2"
)
@ -59,38 +57,6 @@ func addUnicodeNormalizeTokenFilter(m *mapping.IndexMappingImpl) error {
})
}
// openBleveIndexer 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 openBleveIndexer(path string, latestVersion int) (bleve.Index, error) {
_, err := os.Stat(path)
if err != nil && os.IsNotExist(err) {
return nil, nil
} else if err != nil {
return nil, err
}
metadata, err := rupture.ReadIndexMetadata(path)
if err != nil {
return nil, err
}
if metadata.Version < latestVersion {
// the indexer is using a previous version, so we should delete it and
// re-populate
return nil, util.RemoveAll(path)
}
index, err := bleve.Open(path)
if err != nil && err == upsidedown.IncompatibleVersion {
// the indexer was built with a previous version of bleve, so we should
// delete it and re-populate
return nil, util.RemoveAll(path)
} else if err != nil {
return nil, err
}
return index, nil
}
// RepoIndexerData data stored in the repo indexer
type RepoIndexerData struct {
RepoID int64
@ -111,8 +77,8 @@ const (
repoIndexerLatestVersion = 6
)
// createBleveIndexer create a bleve repo indexer if one does not already exist
func createBleveIndexer(path string, latestVersion int) (bleve.Index, error) {
// generateBleveIndexMapping generates a bleve index mapping for the repo indexer
func generateBleveIndexMapping() (mapping.IndexMapping, error) {
docMapping := bleve.NewDocumentMapping()
numericFieldMapping := bleve.NewNumericFieldMapping()
numericFieldMapping.IncludeInAll = false
@ -147,42 +113,28 @@ func createBleveIndexer(path string, latestVersion int) (bleve.Index, error) {
mapping.AddDocumentMapping(repoIndexerDocType, docMapping)
mapping.AddDocumentMapping("_all", bleve.NewDocumentDisabledMapping())
indexer, err := bleve.New(path, mapping)
if err != nil {
return nil, err
}
if err = rupture.WriteIndexMetadata(path, &rupture.IndexMetadata{
Version: latestVersion,
}); err != nil {
return nil, err
}
return indexer, nil
return mapping, nil
}
var _ Indexer = &BleveIndexer{}
var _ internal.Indexer = &Indexer{}
// BleveIndexer represents a bleve indexer implementation
type BleveIndexer struct {
indexDir string
indexer bleve.Index
// Indexer represents a bleve indexer implementation
type Indexer struct {
inner *inner_bleve.Indexer
indexer_internal.Indexer // do not composite inner_bleve.Indexer directly to avoid exposing too much
}
// NewBleveIndexer creates a new bleve local indexer
func NewBleveIndexer(indexDir string) (*BleveIndexer, bool, error) {
indexer := &BleveIndexer{
indexDir: indexDir,
// NewIndexer creates a new bleve local indexer
func NewIndexer(indexDir string) *Indexer {
inner := inner_bleve.NewIndexer(indexDir, repoIndexerLatestVersion, generateBleveIndexMapping)
return &Indexer{
Indexer: inner,
inner: inner,
}
created, err := indexer.init()
if err != nil {
indexer.Close()
return nil, false, err
}
return indexer, created, err
}
func (b *BleveIndexer) addUpdate(ctx context.Context, batchWriter git.WriteCloserError, batchReader *bufio.Reader, commitSha string,
update fileUpdate, repo *repo_model.Repository, batch *gitea_bleve.FlushingBatch,
func (b *Indexer) addUpdate(ctx context.Context, batchWriter git.WriteCloserError, batchReader *bufio.Reader, commitSha string,
update internal.FileUpdate, repo *repo_model.Repository, batch *inner_bleve.FlushingBatch,
) error {
// Ignore vendored files in code search
if setting.Indexer.ExcludeVendored && analyze.IsVendor(update.Filename) {
@ -227,7 +179,7 @@ func (b *BleveIndexer) addUpdate(ctx context.Context, batchWriter git.WriteClose
if _, err = batchReader.Discard(1); err != nil {
return err
}
id := filenameIndexerID(repo.ID, update.Filename)
id := internal.FilenameIndexerID(repo.ID, update.Filename)
return batch.Index(id, &RepoIndexerData{
RepoID: repo.ID,
CommitID: commitSha,
@ -237,50 +189,14 @@ func (b *BleveIndexer) addUpdate(ctx context.Context, batchWriter git.WriteClose
})
}
func (b *BleveIndexer) addDelete(filename string, repo *repo_model.Repository, batch *gitea_bleve.FlushingBatch) error {
id := filenameIndexerID(repo.ID, filename)
func (b *Indexer) addDelete(filename string, repo *repo_model.Repository, batch *inner_bleve.FlushingBatch) error {
id := internal.FilenameIndexerID(repo.ID, filename)
return batch.Delete(id)
}
// init init the indexer
func (b *BleveIndexer) init() (bool, error) {
var err error
b.indexer, err = openBleveIndexer(b.indexDir, repoIndexerLatestVersion)
if err != nil {
return false, err
}
if b.indexer != nil {
return false, nil
}
b.indexer, err = createBleveIndexer(b.indexDir, repoIndexerLatestVersion)
if err != nil {
return false, err
}
return true, nil
}
// Close close the indexer
func (b *BleveIndexer) Close() {
log.Debug("Closing repo indexer")
if b.indexer != nil {
err := b.indexer.Close()
if err != nil {
log.Error("Error whilst closing the repository indexer: %v", err)
}
}
log.Info("PID: %d Repository Indexer closed", os.Getpid())
}
// Ping does nothing
func (b *BleveIndexer) Ping() bool {
return true
}
// Index indexes the data
func (b *BleveIndexer) Index(ctx context.Context, repo *repo_model.Repository, sha string, changes *repoChanges) error {
batch := gitea_bleve.NewFlushingBatch(b.indexer, maxBatchSize)
func (b *Indexer) Index(ctx context.Context, repo *repo_model.Repository, sha string, changes *internal.RepoChanges) error {
batch := inner_bleve.NewFlushingBatch(b.inner.Indexer, maxBatchSize)
if len(changes.Updates) > 0 {
// Now because of some insanity with git cat-file not immediately failing if not run in a valid git directory we need to run git rev-parse first!
@ -308,14 +224,14 @@ func (b *BleveIndexer) Index(ctx context.Context, repo *repo_model.Repository, s
}
// Delete deletes indexes by ids
func (b *BleveIndexer) Delete(repoID int64) error {
func (b *Indexer) Delete(_ context.Context, repoID int64) error {
query := numericEqualityQuery(repoID, "RepoID")
searchRequest := bleve.NewSearchRequestOptions(query, 2147483647, 0, false)
result, err := b.indexer.Search(searchRequest)
result, err := b.inner.Indexer.Search(searchRequest)
if err != nil {
return err
}
batch := gitea_bleve.NewFlushingBatch(b.indexer, maxBatchSize)
batch := inner_bleve.NewFlushingBatch(b.inner.Indexer, maxBatchSize)
for _, hit := range result.Hits {
if err = batch.Delete(hit.ID); err != nil {
return err
@ -326,7 +242,7 @@ func (b *BleveIndexer) Delete(repoID int64) error {
// Search searches for files in the specified repo.
// Returns the matching file-paths
func (b *BleveIndexer) Search(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int64, []*SearchResult, []*SearchResultLanguages, error) {
func (b *Indexer) Search(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int64, []*internal.SearchResult, []*internal.SearchResultLanguages, error) {
var (
indexerQuery query.Query
keywordQuery query.Query
@ -379,14 +295,14 @@ func (b *BleveIndexer) Search(ctx context.Context, repoIDs []int64, language, ke
searchRequest.AddFacet("languages", bleve.NewFacetRequest("Language", 10))
}
result, err := b.indexer.SearchInContext(ctx, searchRequest)
result, err := b.inner.Indexer.SearchInContext(ctx, searchRequest)
if err != nil {
return 0, nil, nil, err
}
total := int64(result.Total)
searchResults := make([]*SearchResult, len(result.Hits))
searchResults := make([]*internal.SearchResult, len(result.Hits))
for i, hit := range result.Hits {
startIndex, endIndex := -1, -1
for _, locations := range hit.Locations["Content"] {
@ -405,11 +321,11 @@ func (b *BleveIndexer) Search(ctx context.Context, repoIDs []int64, language, ke
if t, err := time.Parse(time.RFC3339, hit.Fields["UpdatedAt"].(string)); err == nil {
updatedUnix = timeutil.TimeStamp(t.Unix())
}
searchResults[i] = &SearchResult{
searchResults[i] = &internal.SearchResult{
RepoID: int64(hit.Fields["RepoID"].(float64)),
StartIndex: startIndex,
EndIndex: endIndex,
Filename: filenameOfIndexerID(hit.ID),
Filename: internal.FilenameOfIndexerID(hit.ID),
Content: hit.Fields["Content"].(string),
CommitID: hit.Fields["CommitID"].(string),
UpdatedUnix: updatedUnix,
@ -418,7 +334,7 @@ func (b *BleveIndexer) Search(ctx context.Context, repoIDs []int64, language, ke
}
}
searchResultLanguages := make([]*SearchResultLanguages, 0, 10)
searchResultLanguages := make([]*internal.SearchResultLanguages, 0, 10)
if len(language) > 0 {
// Use separate query to go get all language counts
facetRequest := bleve.NewSearchRequestOptions(facetQuery, 1, 0, false)
@ -426,7 +342,7 @@ func (b *BleveIndexer) Search(ctx context.Context, repoIDs []int64, language, ke
facetRequest.IncludeLocations = true
facetRequest.AddFacet("languages", bleve.NewFacetRequest("Language", 10))
if result, err = b.indexer.Search(facetRequest); err != nil {
if result, err = b.inner.Indexer.Search(facetRequest); err != nil {
return 0, nil, nil, err
}
@ -436,7 +352,7 @@ func (b *BleveIndexer) Search(ctx context.Context, repoIDs []int64, language, ke
if len(term.Term) == 0 {
continue
}
searchResultLanguages = append(searchResultLanguages, &SearchResultLanguages{
searchResultLanguages = append(searchResultLanguages, &internal.SearchResultLanguages{
Language: term.Term,
Color: enry.GetColor(term.Term),
Count: term.Count,

30
modules/indexer/code/bleve_test.go
View File

@ -1,30 +0,0 @@
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package code
import (
"testing"
"code.gitea.io/gitea/models/unittest"
"github.com/stretchr/testify/assert"
)
func TestBleveIndexAndSearch(t *testing.T) {
unittest.PrepareTestEnv(t)
dir := t.TempDir()
idx, _, err := NewBleveIndexer(dir)
if err != nil {
assert.Fail(t, "Unable to create bleve indexer Error: %v", err)
if idx != nil {
idx.Close()
}
return
}
defer idx.Close()
testIndexer("beleve", t, idx)
}

41
modules/indexer/code/elastic_search_test.go
View File

@ -1,41 +0,0 @@
// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package code
import (
"os"
"testing"
"code.gitea.io/gitea/models/unittest"
"github.com/stretchr/testify/assert"
)
func TestESIndexAndSearch(t *testing.T) {
unittest.PrepareTestEnv(t)
u := os.Getenv("TEST_INDEXER_CODE_ES_URL")
if u == "" {
t.SkipNow()
return
}
indexer, _, err := NewElasticSearchIndexer(u, "gitea_codes")
if err != nil {
assert.Fail(t, "Unable to create ES indexer Error: %v", err)
if indexer != nil {
indexer.Close()
}
return
}
defer indexer.Close()
testIndexer("elastic_search", t, indexer)
}
func TestIndexPos(t *testing.T) {
startIdx, endIdx := indexPos("test index start and end", "start", "end")
assert.EqualValues(t, 11, startIdx)
assert.EqualValues(t, 24, endIdx)
}

252
modules/indexer/code/elastic_search.go → modules/indexer/code/elasticsearch/elasticsearch.go
View File

@ -1,25 +1,23 @@
// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package code
package elasticsearch
import (
"bufio"
"context"
"errors"
"fmt"
"io"
"net"
"strconv"
"strings"
"sync"
"time"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/analyze"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/indexer/code/internal"
indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
inner_elasticsearch "code.gitea.io/gitea/modules/indexer/internal/elasticsearch"
"code.gitea.io/gitea/modules/json"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
@ -38,63 +36,22 @@ const (
esMultiMatchTypePhrasePrefix = "phrase_prefix"
)
var _ Indexer = &ElasticSearchIndexer{}
var _ internal.Indexer = &Indexer{}
// ElasticSearchIndexer implements Indexer interface
type ElasticSearchIndexer struct {
client *elastic.Client
indexerAliasName string
available bool
stopTimer chan struct{}
lock sync.RWMutex
// Indexer implements Indexer interface
type Indexer struct {
inner *inner_elasticsearch.Indexer
indexer_internal.Indexer // do not composite inner_elasticsearch.Indexer directly to avoid exposing too much
}
// NewElasticSearchIndexer creates a new elasticsearch indexer
func NewElasticSearchIndexer(url, indexerName string) (*ElasticSearchIndexer, bool, error) {
opts := []elastic.ClientOptionFunc{
elastic.SetURL(url),
elastic.SetSniff(false),
elastic.SetHealthcheckInterval(10 * time.Second),
elastic.SetGzip(false),
// NewIndexer creates a new elasticsearch indexer
func NewIndexer(url, indexerName string) *Indexer {
inner := inner_elasticsearch.NewIndexer(url, indexerName, esRepoIndexerLatestVersion, defaultMapping)
indexer := &Indexer{
inner: inner,
Indexer: inner,
}
logger := log.GetLogger(log.DEFAULT)
opts = append(opts, elastic.SetTraceLog(&log.PrintfLogger{Logf: logger.Trace}))
opts = append(opts, elastic.SetInfoLog(&log.PrintfLogger{Logf: logger.Info}))
opts = append(opts, elastic.SetErrorLog(&log.PrintfLogger{Logf: logger.Error}))
client, err := elastic.NewClient(opts...)
if err != nil {
return nil, false, err
}
indexer := &ElasticSearchIndexer{
client: client,
indexerAliasName: indexerName,
available: true,
stopTimer: make(chan struct{}),
}
ticker := time.NewTicker(10 * time.Second)
go func() {
for {
select {
case <-ticker.C:
indexer.checkAvailability()
case <-indexer.stopTimer:
ticker.Stop()
return
}
}
}()
exists, err := indexer.init()
if err != nil {
indexer.Close()
return nil, false, err
}
return indexer, !exists, err
return indexer
}
const (
@ -127,72 +84,7 @@ const (
}`
)
func (b *ElasticSearchIndexer) realIndexerName() string {
return fmt.Sprintf("%s.v%d", b.indexerAliasName, esRepoIndexerLatestVersion)
}
// Init will initialize the indexer
func (b *ElasticSearchIndexer) init() (bool, error) {
ctx := graceful.GetManager().HammerContext()
exists, err := b.client.IndexExists(b.realIndexerName()).Do(ctx)
if err != nil {
return false, b.checkError(err)
}
if !exists {
mapping := defaultMapping
createIndex, err := b.client.CreateIndex(b.realIndexerName()).BodyString(mapping).Do(ctx)
if err != nil {
return false, b.checkError(err)
}
if !createIndex.Acknowledged {
return false, fmt.Errorf("create index %s with %s failed", b.realIndexerName(), mapping)
}
}
// check version
r, err := b.client.Aliases().Do(ctx)
if err != nil {
return false, b.checkError(err)
}
realIndexerNames := r.IndicesByAlias(b.indexerAliasName)
if len(realIndexerNames) < 1 {
res, err := b.client.Alias().
Add(b.realIndexerName(), b.indexerAliasName).
Do(ctx)
if err != nil {
return false, b.checkError(err)
}
if !res.Acknowledged {
return false, fmt.Errorf("create alias %s to index %s failed", b.indexerAliasName, b.realIndexerName())
}
} else if len(realIndexerNames) >= 1 && realIndexerNames[0] < b.realIndexerName() {
log.Warn("Found older gitea indexer named %s, but we will create a new one %s and keep the old NOT DELETED. You can delete the old version after the upgrade succeed.",
realIndexerNames[0], b.realIndexerName())
res, err := b.client.Alias().
Remove(realIndexerNames[0], b.indexerAliasName).
Add(b.realIndexerName(), b.indexerAliasName).
Do(ctx)
if err != nil {
return false, b.checkError(err)
}
if !res.Acknowledged {
return false, fmt.Errorf("change alias %s to index %s failed", b.indexerAliasName, b.realIndexerName())
}
}
return exists, nil
}
// Ping checks if elastic is available
func (b *ElasticSearchIndexer) Ping() bool {
b.lock.RLock()
defer b.lock.RUnlock()
return b.available
}
func (b *ElasticSearchIndexer) addUpdate(ctx context.Context, batchWriter git.WriteCloserError, batchReader *bufio.Reader, sha string, update fileUpdate, repo *repo_model.Repository) ([]elastic.BulkableRequest, error) {
func (b *Indexer) addUpdate(ctx context.Context, batchWriter git.WriteCloserError, batchReader *bufio.Reader, sha string, update internal.FileUpdate, repo *repo_model.Repository) ([]elastic.BulkableRequest, error) {
// Ignore vendored files in code search
if setting.Indexer.ExcludeVendored && analyze.IsVendor(update.Filename) {
return nil, nil
@ -235,11 +127,11 @@ func (b *ElasticSearchIndexer) addUpdate(ctx context.Context, batchWriter git.Wr
if _, err = batchReader.Discard(1); err != nil {
return nil, err
}
id := filenameIndexerID(repo.ID, update.Filename)
id := internal.FilenameIndexerID(repo.ID, update.Filename)
return []elastic.BulkableRequest{
elastic.NewBulkIndexRequest().
Index(b.indexerAliasName).
Index(b.inner.VersionedIndexName()).
Id(id).
Doc(map[string]interface{}{
"repo_id": repo.ID,
@ -251,15 +143,15 @@ func (b *ElasticSearchIndexer) addUpdate(ctx context.Context, batchWriter git.Wr
}, nil
}
func (b *ElasticSearchIndexer) addDelete(filename string, repo *repo_model.Repository) elastic.BulkableRequest {
id := filenameIndexerID(repo.ID, filename)
func (b *Indexer) addDelete(filename string, repo *repo_model.Repository) elastic.BulkableRequest {
id := internal.FilenameIndexerID(repo.ID, filename)
return elastic.NewBulkDeleteRequest().
Index(b.indexerAliasName).
Index(b.inner.VersionedIndexName()).
Id(id)
}
// Index will save the index data
func (b *ElasticSearchIndexer) Index(ctx context.Context, repo *repo_model.Repository, sha string, changes *repoChanges) error {
func (b *Indexer) Index(ctx context.Context, repo *repo_model.Repository, sha string, changes *internal.RepoChanges) error {
reqs := make([]elastic.BulkableRequest, 0)
if len(changes.Updates) > 0 {
// Now because of some insanity with git cat-file not immediately failing if not run in a valid git directory we need to run git rev-parse first!
@ -288,21 +180,21 @@ func (b *ElasticSearchIndexer) Index(ctx context.Context, repo *repo_model.Repos
}
if len(reqs) > 0 {
_, err := b.client.Bulk().
Index(b.indexerAliasName).
_, err := b.inner.Client.Bulk().
Index(b.inner.VersionedIndexName()).
Add(reqs...).
Do(ctx)
return b.checkError(err)
return err
}
return nil
}
// Delete deletes indexes by ids
func (b *ElasticSearchIndexer) Delete(repoID int64) error {
_, err := b.client.DeleteByQuery(b.indexerAliasName).
func (b *Indexer) Delete(ctx context.Context, repoID int64) error {
_, err := b.inner.Client.DeleteByQuery(b.inner.VersionedIndexName()).
Query(elastic.NewTermsQuery("repo_id", repoID)).
Do(graceful.GetManager().HammerContext())
return b.checkError(err)
Do(ctx)
return err
}
// indexPos find words positions for start and the following end on content. It will
@ -321,8 +213,8 @@ func indexPos(content, start, end string) (int, int) {
return startIdx, startIdx + len(start) + endIdx + len(end)
}
func convertResult(searchResult *elastic.SearchResult, kw string, pageSize int) (int64, []*SearchResult, []*SearchResultLanguages, error) {
hits := make([]*SearchResult, 0, pageSize)
func convertResult(searchResult *elastic.SearchResult, kw string, pageSize int) (int64, []*internal.SearchResult, []*internal.SearchResultLanguages, error) {
hits := make([]*internal.SearchResult, 0, pageSize)
for _, hit := range searchResult.Hits.Hits {
// FIXME: There is no way to get the position the keyword on the content currently on the same request.
// So we get it from content, this may made the query slower. See
@ -341,7 +233,7 @@ func convertResult(searchResult *elastic.SearchResult, kw string, pageSize int)
panic(fmt.Sprintf("2===%#v", hit.Highlight))
}
repoID, fileName := parseIndexerID(hit.Id)
repoID, fileName := internal.ParseIndexerID(hit.Id)
res := make(map[string]interface{})
if err := json.Unmarshal(hit.Source, &res); err != nil {
return 0, nil, nil, err
@ -349,7 +241,7 @@ func convertResult(searchResult *elastic.SearchResult, kw string, pageSize int)
language := res["language"].(string)
hits = append(hits, &SearchResult{
hits = append(hits, &internal.SearchResult{
RepoID: repoID,
Filename: fileName,
CommitID: res["commit_id"].(string),
@ -365,14 +257,14 @@ func convertResult(searchResult *elastic.SearchResult, kw string, pageSize int)
return searchResult.TotalHits(), hits, extractAggs(searchResult), nil
}
func extractAggs(searchResult *elastic.SearchResult) []*SearchResultLanguages {
var searchResultLanguages []*SearchResultLanguages
func extractAggs(searchResult *elastic.SearchResult) []*internal.SearchResultLanguages {
var searchResultLanguages []*internal.SearchResultLanguages
agg, found := searchResult.Aggregations.Terms("language")
if found {
searchResultLanguages = make([]*SearchResultLanguages, 0, 10)
searchResultLanguages = make([]*internal.SearchResultLanguages, 0, 10)
for _, bucket := range agg.Buckets {
searchResultLanguages = append(searchResultLanguages, &SearchResultLanguages{
searchResultLanguages = append(searchResultLanguages, &internal.SearchResultLanguages{
Language: bucket.Key.(string),
Color: enry.GetColor(bucket.Key.(string)),
Count: int(bucket.DocCount),
@ -383,7 +275,7 @@ func extractAggs(searchResult *elastic.SearchResult) []*SearchResultLanguages {
}
// Search searches for codes and language stats by given conditions.
func (b *ElasticSearchIndexer) Search(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int64, []*SearchResult, []*SearchResultLanguages, error) {
func (b *Indexer) Search(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int64, []*internal.SearchResult, []*internal.SearchResultLanguages, error) {
searchType := esMultiMatchTypeBestFields
if isMatch {
searchType = esMultiMatchTypePhrasePrefix
@ -412,8 +304,8 @@ func (b *ElasticSearchIndexer) Search(ctx context.Context, repoIDs []int64, lang
}
if len(language) == 0 {
searchResult, err := b.client.Search().
Index(b.indexerAliasName).
searchResult, err := b.inner.Client.Search().
Index(b.inner.VersionedIndexName()).
Aggregation("language", aggregation).
Query(query).
Highlight(
@ -426,26 +318,26 @@ func (b *ElasticSearchIndexer) Search(ctx context.Context, repoIDs []int64, lang
From(start).Size(pageSize).
Do(ctx)
if err != nil {
return 0, nil, nil, b.checkError(err)
return 0, nil, nil, err
}
return convertResult(searchResult, kw, pageSize)
}
langQuery := elastic.NewMatchQuery("language", language)
countResult, err := b.client.Search().
Index(b.indexerAliasName).
countResult, err := b.inner.Client.Search().
Index(b.inner.VersionedIndexName()).
Aggregation("language", aggregation).
Query(query).
Size(0). // We only needs stats information
Size(0). // We only need stats information
Do(ctx)
if err != nil {
return 0, nil, nil, b.checkError(err)
return 0, nil, nil, err
}
query = query.Must(langQuery)
searchResult, err := b.client.Search().
Index(b.indexerAliasName).
searchResult, err := b.inner.Client.Search().
Index(b.inner.VersionedIndexName()).
Query(query).
Highlight(
elastic.NewHighlight().
@ -457,56 +349,10 @@ func (b *ElasticSearchIndexer) Search(ctx context.Context, repoIDs []int64, lang
From(start).Size(pageSize).
Do(ctx)
if err != nil {
return 0, nil, nil, b.checkError(err)
return 0, nil, nil, err
}
total, hits, _, err := convertResult(searchResult, kw, pageSize)
return total, hits, extractAggs(countResult), err
}
// Close implements indexer
func (b *ElasticSearchIndexer) Close() {
select {
case <-b.stopTimer:
default:
close(b.stopTimer)
}
}
func (b *ElasticSearchIndexer) checkError(err error) error {
var opErr *net.OpError
if !(elastic.IsConnErr(err) || (errors.As(err, &opErr) && (opErr.Op == "dial" || opErr.Op == "read"))) {
return err
}
b.setAvailability(false)
return err
}
func (b *ElasticSearchIndexer) checkAvailability() {
if b.Ping() {
return
}
// Request cluster state to check if elastic is available again
_, err := b.client.ClusterState().Do(graceful.GetManager().ShutdownContext())
if err != nil {
b.setAvailability(false)
return
}
b.setAvailability(true)
}
func (b *ElasticSearchIndexer) setAvailability(available bool) {
b.lock.Lock()
defer b.lock.Unlock()
if b.available == available {
return
}
b.available = available
}

16
modules/indexer/code/elasticsearch/elasticsearch_test.go Normal file
View File

@ -0,0 +1,16 @@
// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package elasticsearch
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestIndexPos(t *testing.T) {
startIdx, endIdx := indexPos("test index start and end", "start", "end")
assert.EqualValues(t, 11, startIdx)
assert.EqualValues(t, 24, endIdx)
}

32
modules/indexer/code/git.go
View File

@ -10,23 +10,11 @@ import (
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/indexer/code/internal"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
)
type fileUpdate struct {
Filename string
BlobSha string
Size int64
Sized bool
}
// repoChanges changes (file additions/updates/removals) to a repo
type repoChanges struct {
Updates []fileUpdate
RemovedFilenames []string
}
func getDefaultBranchSha(ctx context.Context, repo *repo_model.Repository) (string, error) {
stdout, _, err := git.NewCommand(ctx, "show-ref", "-s").AddDynamicArguments(git.BranchPrefix + repo.DefaultBranch).RunStdString(&git.RunOpts{Dir: repo.RepoPath()})
if err != nil {
@ -36,7 +24,7 @@ func getDefaultBranchSha(ctx context.Context, repo *repo_model.Repository) (stri
}
// getRepoChanges returns changes to repo since last indexer update
func getRepoChanges(ctx context.Context, repo *repo_model.Repository, revision string) (*repoChanges, error) {
func getRepoChanges(ctx context.Context, repo *repo_model.Repository, revision string) (*internal.RepoChanges, error) {
status, err := repo_model.GetIndexerStatus(ctx, repo, repo_model.RepoIndexerTypeCode)
if err != nil {
return nil, err
@ -67,16 +55,16 @@ func isIndexable(entry *git.TreeEntry) bool {
}
// parseGitLsTreeOutput parses the output of a `git ls-tree -r --full-name` command
func parseGitLsTreeOutput(stdout []byte) ([]fileUpdate, error) {
func parseGitLsTreeOutput(stdout []byte) ([]internal.FileUpdate, error) {
entries, err := git.ParseTreeEntries(stdout)
if err != nil {
return nil, err
}
idxCount := 0
updates := make([]fileUpdate, len(entries))
updates := make([]internal.FileUpdate, len(entries))
for _, entry := range entries {
if isIndexable(entry) {
updates[idxCount] = fileUpdate{
updates[idxCount] = internal.FileUpdate{
Filename: entry.Name(),
BlobSha: entry.ID.String(),
Size: entry.Size(),
@ -89,8 +77,8 @@ func parseGitLsTreeOutput(stdout []byte) ([]fileUpdate, error) {
}
// genesisChanges get changes to add repo to the indexer for the first time
func genesisChanges(ctx context.Context, repo *repo_model.Repository, revision string) (*repoChanges, error) {
var changes repoChanges
func genesisChanges(ctx context.Context, repo *repo_model.Repository, revision string) (*internal.RepoChanges, error) {
var changes internal.RepoChanges
stdout, _, runErr := git.NewCommand(ctx, "ls-tree", "--full-tree", "-l", "-r").AddDynamicArguments(revision).RunStdBytes(&git.RunOpts{Dir: repo.RepoPath()})
if runErr != nil {
return nil, runErr
@ -102,20 +90,20 @@ func genesisChanges(ctx context.Context, repo *repo_model.Repository, revision s
}
// nonGenesisChanges get changes since the previous indexer update
func nonGenesisChanges(ctx context.Context, repo *repo_model.Repository, revision string) (*repoChanges, error) {
func nonGenesisChanges(ctx context.Context, repo *repo_model.Repository, revision string) (*internal.RepoChanges, error) {
diffCmd := git.NewCommand(ctx, "diff", "--name-status").AddDynamicArguments(repo.CodeIndexerStatus.CommitSha, revision)
stdout, _, runErr := diffCmd.RunStdString(&git.RunOpts{Dir: repo.RepoPath()})
if runErr != nil {
// previous commit sha may have been removed by a force push, so
// try rebuilding from scratch
log.Warn("git diff: %v", runErr)
if err := indexer.Delete(repo.ID); err != nil {
if err := (*globalIndexer.Load()).Delete(ctx, repo.ID); err != nil {
return nil, err
}
return genesisChanges(ctx, repo, revision)
}
var changes repoChanges
var changes internal.RepoChanges
var err error
updatedFilenames := make([]string, 0, 10)
for _, line := range strings.Split(stdout, "\n") {

147
modules/indexer/code/indexer.go
View File

@ -7,86 +7,41 @@ import (
"context"
"os"
"runtime/pprof"
"strconv"
"strings"
"sync/atomic"
"time"
"code.gitea.io/gitea/models/db"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/indexer/code/bleve"
"code.gitea.io/gitea/modules/indexer/code/elasticsearch"
"code.gitea.io/gitea/modules/indexer/code/internal"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/queue"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
)
// SearchResult result of performing a search in a repo
type SearchResult struct {
RepoID int64
StartIndex int
EndIndex int
Filename string
Content string
CommitID string
UpdatedUnix timeutil.TimeStamp
Language string
Color string
var (
indexerQueue *queue.WorkerPoolQueue[*internal.IndexerData]
// globalIndexer is the global indexer, it cannot be nil.
// When the real indexer is not ready, it will be a dummy indexer which will return error to explain it's not ready.
// So it's always safe use it as *globalIndexer.Load() and call its methods.
globalIndexer atomic.Pointer[internal.Indexer]
dummyIndexer *internal.Indexer
)
func init() {
i := internal.NewDummyIndexer()
dummyIndexer = &i
globalIndexer.Store(dummyIndexer)
}
// SearchResultLanguages result of top languages count in search results
type SearchResultLanguages struct {
Language string
Color string
Count int
}
// Indexer defines an interface to index and search code contents
type Indexer interface {
Ping() bool
Index(ctx context.Context, repo *repo_model.Repository, sha string, changes *repoChanges) error
Delete(repoID int64) error
Search(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int64, []*SearchResult, []*SearchResultLanguages, error)
Close()
}
func filenameIndexerID(repoID int64, filename string) string {
return indexerID(repoID) + "_" + filename
}
func indexerID(id int64) string {
return strconv.FormatInt(id, 36)
}
func parseIndexerID(indexerID string) (int64, string) {
index := strings.IndexByte(indexerID, '_')
if index == -1 {
log.Error("Unexpected ID in repo indexer: %s", indexerID)
}
repoID, _ := strconv.ParseInt(indexerID[:index], 36, 64)
return repoID, indexerID[index+1:]
}
func filenameOfIndexerID(indexerID string) string {
index := strings.IndexByte(indexerID, '_')
if index == -1 {
log.Error("Unexpected ID in repo indexer: %s", indexerID)
}
return indexerID[index+1:]
}
// IndexerData represents data stored in the code indexer
type IndexerData struct {
RepoID int64
}
var indexerQueue *queue.WorkerPoolQueue[*IndexerData]
func index(ctx context.Context, indexer Indexer, repoID int64) error {
func index(ctx context.Context, indexer internal.Indexer, repoID int64) error {
repo, err := repo_model.GetRepositoryByID(ctx, repoID)
if repo_model.IsErrRepoNotExist(err) {
return indexer.Delete(repoID)
return indexer.Delete(ctx, repoID)
}
if err != nil {
return err
@ -139,7 +94,7 @@ func index(ctx context.Context, indexer Indexer, repoID int64) error {
// Init initialize the repo indexer
func Init() {
if !setting.Indexer.RepoIndexerEnabled {
indexer.Close()
(*globalIndexer.Load()).Close()
return
}
@ -153,7 +108,7 @@ func Init() {
}
cancel()
log.Debug("Closing repository indexer")
indexer.Close()
(*globalIndexer.Load()).Close()
log.Info("PID: %d Repository Indexer closed", os.Getpid())
finished()
})
@ -163,13 +118,8 @@ func Init() {
// Create the Queue
switch setting.Indexer.RepoType {
case "bleve", "elasticsearch":
handler := func(items ...*IndexerData) (unhandled []*IndexerData) {
idx, err := indexer.get()
if idx == nil || err != nil {
log.Warn("Codes indexer handler: indexer is not ready, retry later.")
return items
}
handler := func(items ...*internal.IndexerData) (unhandled []*internal.IndexerData) {
indexer := *globalIndexer.Load()
for _, indexerData := range items {
log.Trace("IndexerData Process Repo: %d", indexerData.RepoID)
@ -188,11 +138,7 @@ func Init() {
code.gitea.io/gitea/modules/indexer/code.index(indexer.go:105)
*/
if err := index(ctx, indexer, indexerData.RepoID); err != nil {
if !idx.Ping() {
log.Error("Code indexer handler: indexer is unavailable.")
unhandled = append(unhandled, indexerData)
continue
}
unhandled = append(unhandled, indexerData)
if !setting.IsInTesting {
log.Error("Codes indexer handler: index error for repo %v: %v", indexerData.RepoID, err)
}
@ -213,8 +159,8 @@ func Init() {
pprof.SetGoroutineLabels(ctx)
start := time.Now()
var (
rIndexer Indexer
populate bool
rIndexer internal.Indexer
existed bool
err error
)
switch setting.Indexer.RepoType {
@ -228,10 +174,11 @@ func Init() {
}
}()
rIndexer, populate, err = NewBleveIndexer(setting.Indexer.RepoPath)
rIndexer = bleve.NewIndexer(setting.Indexer.RepoPath)
existed, err = rIndexer.Init(ctx)
if err != nil {
cancel()
indexer.Close()
(*globalIndexer.Load()).Close()
close(waitChannel)
log.Fatal("PID: %d Unable to initialize the bleve Repository Indexer at path: %s Error: %v", os.Getpid(), setting.Indexer.RepoPath, err)
}
@ -245,23 +192,31 @@ func Init() {
}
}()
rIndexer, populate, err = NewElasticSearchIndexer(setting.Indexer.RepoConnStr, setting.Indexer.RepoIndexerName)
rIndexer = elasticsearch.NewIndexer(setting.Indexer.RepoConnStr, setting.Indexer.RepoIndexerName)
if err != nil {
cancel()
indexer.Close()
(*globalIndexer.Load()).Close()
close(waitChannel)
log.Fatal("PID: %d Unable to create the elasticsearch Repository Indexer connstr: %s Error: %v", os.Getpid(), setting.Indexer.RepoConnStr, err)
}
existed, err = rIndexer.Init(ctx)
if err != nil {
cancel()
(*globalIndexer.Load()).Close()
close(waitChannel)
log.Fatal("PID: %d Unable to initialize the elasticsearch Repository Indexer connstr: %s Error: %v", os.Getpid(), setting.Indexer.RepoConnStr, err)
}
default:
log.Fatal("PID: %d Unknown Indexer type: %s", os.Getpid(), setting.Indexer.RepoType)
}
indexer.set(rIndexer)
globalIndexer.Store(&rIndexer)
// Start processing the queue
go graceful.GetManager().RunWithCancel(indexerQueue)
if populate {
if !existed { // populate the index because it's created for the first time
go graceful.GetManager().RunWithShutdownContext(populateRepoIndexer)
}
select {
@ -283,18 +238,18 @@ func Init() {
case <-graceful.GetManager().IsShutdown():
log.Warn("Shutdown before Repository Indexer completed initialization")
cancel()
indexer.Close()
(*globalIndexer.Load()).Close()
case duration, ok := <-waitChannel:
if !ok {
log.Warn("Repository Indexer Initialization failed")
cancel()
indexer.Close()
(*globalIndexer.Load()).Close()
return
}
log.Info("Repository Indexer Initialization took %v", duration)
case <-time.After(timeout):
cancel()
indexer.Close()
(*globalIndexer.Load()).Close()
log.Fatal("Repository Indexer Initialization Timed-Out after: %v", timeout)
}
}()
@ -303,21 +258,15 @@ func Init() {
// UpdateRepoIndexer update a repository's entries in the indexer
func UpdateRepoIndexer(repo *repo_model.Repository) {
indexData := &IndexerData{RepoID: repo.ID}
indexData := &internal.IndexerData{RepoID: repo.ID}
if err := indexerQueue.Push(indexData); err != nil {
log.Error("Update repo index data %v failed: %v", indexData, err)
}
}
// IsAvailable checks if issue indexer is available
func IsAvailable() bool {
idx, err := indexer.get()
if err != nil {
log.Error("IsAvailable(): unable to get indexer: %v", err)
return false
}
return idx.Ping()
func IsAvailable(ctx context.Context) bool {
return (*globalIndexer.Load()).Ping(ctx) == nil
}
// populateRepoIndexer populate the repo indexer with pre-existing data. This
@ -368,7 +317,7 @@ func populateRepoIndexer(ctx context.Context) {
return
default:
}
if err := indexerQueue.Push(&IndexerData{RepoID: id}); err != nil {
if err := indexerQueue.Push(&internal.IndexerData{RepoID: id}); err != nil {
log.Error("indexerQueue.Push: %v", err)
return
}

50
modules/indexer/code/indexer_test.go
View File

@ -5,11 +5,15 @@ package code
import (
"context"
"os"
"path/filepath"
"testing"
"code.gitea.io/gitea/models/unittest"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/indexer/code/bleve"
"code.gitea.io/gitea/modules/indexer/code/elasticsearch"
"code.gitea.io/gitea/modules/indexer/code/internal"
_ "code.gitea.io/gitea/models"
@ -22,7 +26,7 @@ func TestMain(m *testing.M) {
})
}
func testIndexer(name string, t *testing.T, indexer Indexer) {
func testIndexer(name string, t *testing.T, indexer internal.Indexer) {
t.Run(name, func(t *testing.T) {
var repoID int64 = 1
err := index(git.DefaultContext, indexer, repoID)
@ -81,6 +85,48 @@ func testIndexer(name string, t *testing.T, indexer Indexer) {
})
}
assert.NoError(t, indexer.Delete(repoID))
assert.NoError(t, indexer.Delete(context.Background(), repoID))
})
}
func TestBleveIndexAndSearch(t *testing.T) {
unittest.PrepareTestEnv(t)
dir := t.TempDir()
idx := bleve.NewIndexer(dir)
_, err := idx.Init(context.Background())
if err != nil {
assert.Fail(t, "Unable to create bleve indexer Error: %v", err)
if idx != nil {
idx.Close()
}
return
}
defer idx.Close()
testIndexer("beleve", t, idx)
}
func TestESIndexAndSearch(t *testing.T) {
unittest.PrepareTestEnv(t)
u := os.Getenv("TEST_INDEXER_CODE_ES_URL")
if u == "" {
t.SkipNow()
return
}
indexer := elasticsearch.NewIndexer(u, "gitea_codes")
if _, err := indexer.Init(context.Background()); err != nil {
assert.Fail(t, "Unable to init ES indexer Error: %v", err)
if indexer != nil {
indexer.Close()
}
return
}
defer indexer.Close()
testIndexer("elastic_search", t, indexer)
}

43
modules/indexer/code/internal/indexer.go Normal file
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@ -0,0 +1,43 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package internal
import (
"context"
"fmt"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/indexer/internal"
)
// Indexer defines an interface to index and search code contents
type Indexer interface {
internal.Indexer
Index(ctx context.Context, repo *repo_model.Repository, sha string, changes *RepoChanges) error
Delete(ctx context.Context, repoID int64) error
Search(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int64, []*SearchResult, []*SearchResultLanguages, error)
}
// NewDummyIndexer returns a dummy indexer
func NewDummyIndexer() Indexer {
return &dummyIndexer{
Indexer: internal.NewDummyIndexer(),
}
}
type dummyIndexer struct {
internal.Indexer
}
func (d *dummyIndexer) Index(ctx context.Context, repo *repo_model.Repository, sha string, changes *RepoChanges) error {
return fmt.Errorf("indexer is not ready")
}
func (d *dummyIndexer) Delete(ctx context.Context, repoID int64) error {
return fmt.Errorf("indexer is not ready")
}
func (d *dummyIndexer) Search(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int64, []*SearchResult, []*SearchResultLanguages, error) {
return 0, nil, nil, fmt.Errorf("indexer is not ready")
}

44
modules/indexer/code/internal/model.go Normal file
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@ -0,0 +1,44 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package internal
import "code.gitea.io/gitea/modules/timeutil"
type FileUpdate struct {
Filename string
BlobSha string
Size int64
Sized bool
}
// RepoChanges changes (file additions/updates/removals) to a repo
type RepoChanges struct {
Updates []FileUpdate
RemovedFilenames []string
}
// IndexerData represents data stored in the code indexer
type IndexerData struct {
RepoID int64
}
// SearchResult result of performing a search in a repo
type SearchResult struct {
RepoID int64
StartIndex int
EndIndex int
Filename string
Content string
CommitID string
UpdatedUnix timeutil.TimeStamp
Language string
Color string
}
// SearchResultLanguages result of top languages count in search results
type SearchResultLanguages struct {
Language string
Color string
Count int
}

32
modules/indexer/code/internal/util.go Normal file
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@ -0,0 +1,32 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package internal
import (
"strings"
"code.gitea.io/gitea/modules/indexer/internal"
"code.gitea.io/gitea/modules/log"
)
func FilenameIndexerID(repoID int64, filename string) string {
return internal.Base36(repoID) + "_" + filename
}
func ParseIndexerID(indexerID string) (int64, string) {
index := strings.IndexByte(indexerID, '_')
if index == -1 {
log.Error("Unexpected ID in repo indexer: %s", indexerID)
}
repoID, _ := internal.ParseBase36(indexerID[:index])
return repoID, indexerID[index+1:]
}
func FilenameOfIndexerID(indexerID string) string {
index := strings.IndexByte(indexerID, '_')
if index == -1 {
log.Error("Unexpected ID in repo indexer: %s", indexerID)
}
return indexerID[index+1:]
}

9
modules/indexer/code/search.go
View File

@ -9,6 +9,7 @@ import (
"strings"
"code.gitea.io/gitea/modules/highlight"
"code.gitea.io/gitea/modules/indexer/code/internal"
"code.gitea.io/gitea/modules/timeutil"
"code.gitea.io/gitea/modules/util"
)
@ -25,6 +26,8 @@ type Result struct {
FormattedLines string
}
type SearchResultLanguages = internal.SearchResultLanguages
func indices(content string, selectionStartIndex, selectionEndIndex int) (int, int) {
startIndex := selectionStartIndex
numLinesBefore := 0
@ -61,7 +64,7 @@ func writeStrings(buf *bytes.Buffer, strs ...string) error {
return nil
}
func searchResult(result *SearchResult, startIndex, endIndex int) (*Result, error) {
func searchResult(result *internal.SearchResult, startIndex, endIndex int) (*Result, error) {
startLineNum := 1 + strings.Count(result.Content[:startIndex], "\n")
var formattedLinesBuffer bytes.Buffer
@ -109,12 +112,12 @@ func searchResult(result *SearchResult, startIndex, endIndex int) (*Result, erro
}
// PerformSearch perform a search on a repository
func PerformSearch(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int, []*Result, []*SearchResultLanguages, error) {
func PerformSearch(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int, []*Result, []*internal.SearchResultLanguages, error) {
if len(keyword) == 0 {
return 0, nil, nil, nil
}
total, results, resultLanguages, err := indexer.Search(ctx, repoIDs, language, keyword, page, pageSize, isMatch)
total, results, resultLanguages, err := (*globalIndexer.Load()).Search(ctx, repoIDs, language, keyword, page, pageSize, isMatch)
if err != nil {
return 0, nil, nil, err
}

104
modules/indexer/code/wrapped.go
View File

@ -1,104 +0,0 @@
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package code
import (
"context"
"fmt"
"sync"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/log"
)
var indexer = newWrappedIndexer()
// ErrWrappedIndexerClosed is the error returned if the indexer was closed before it was ready
var ErrWrappedIndexerClosed = fmt.Errorf("Indexer closed before ready")
type wrappedIndexer struct {
internal Indexer
lock sync.RWMutex
cond *sync.Cond
closed bool
}
func newWrappedIndexer() *wrappedIndexer {
w := &wrappedIndexer{}
w.cond = sync.NewCond(w.lock.RLocker())
return w
}
func (w *wrappedIndexer) set(indexer Indexer) {
w.lock.Lock()
defer w.lock.Unlock()
if w.closed {
// Too late!
indexer.Close()
}
w.internal = indexer
w.cond.Broadcast()
}
func (w *wrappedIndexer) get() (Indexer, error) {
w.lock.RLock()
defer w.lock.RUnlock()
if w.internal == nil {
if w.closed {
return nil, ErrWrappedIndexerClosed
}
w.cond.Wait()
if w.closed {
return nil, ErrWrappedIndexerClosed
}
}
return w.internal, nil
}
// Ping checks if elastic is available
func (w *wrappedIndexer) Ping() bool {
indexer, err := w.get()
if err != nil {
log.Warn("Failed to get indexer: %v", err)
return false
}
return indexer.Ping()
}
func (w *wrappedIndexer) Index(ctx context.Context, repo *repo_model.Repository, sha string, changes *repoChanges) error {
indexer, err := w.get()
if err != nil {
return err
}
return indexer.Index(ctx, repo, sha, changes)
}
func (w *wrappedIndexer) Delete(repoID int64) error {
indexer, err := w.get()
if err != nil {
return err
}
return indexer.Delete(repoID)
}
func (w *wrappedIndexer) Search(ctx context.Context, repoIDs []int64, language, keyword string, page, pageSize int, isMatch bool) (int64, []*SearchResult, []*SearchResultLanguages, error) {
indexer, err := w.get()
if err != nil {
return 0, nil, nil, err
}
return indexer.Search(ctx, repoIDs, language, keyword, page, pageSize, isMatch)
}
func (w *wrappedIndexer) Close() {
w.lock.Lock()
defer w.lock.Unlock()
if w.closed {
return
}
w.closed = true
w.cond.Broadcast()
if w.internal != nil {
w.internal.Close()
}
}

21
modules/indexer/internal/base32.go Normal file
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@ -0,0 +1,21 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package internal
import (
"fmt"
"strconv"
)
func Base36(i int64) string {
return strconv.FormatInt(i, 36)
}
func ParseBase36(s string) (int64, error) {
i, err := strconv.ParseInt(s, 36, 64)
if err != nil {
return 0, fmt.Errorf("invalid base36 integer %q: %w", s, err)
}
return i, nil
}

0
modules/indexer/bleve/batch.go → modules/indexer/internal/bleve/batch.go
View File

103
modules/indexer/internal/bleve/indexer.go Normal file
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@ -0,0 +1,103 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package bleve
import (
"context"
"fmt"
"code.gitea.io/gitea/modules/indexer/internal"
"code.gitea.io/gitea/modules/log"
"github.com/blevesearch/bleve/v2"
"github.com/blevesearch/bleve/v2/mapping"
"github.com/ethantkoenig/rupture"
)
var _ internal.Indexer = &Indexer{}
// Indexer represents a basic bleve indexer implementation
type Indexer struct {
Indexer bleve.Index
indexDir string
version int
mappingGetter MappingGetter
}
type MappingGetter func() (mapping.IndexMapping, error)
func NewIndexer(indexDir string, version int, mappingGetter func() (mapping.IndexMapping, error)) *Indexer {
return &Indexer{
indexDir: indexDir,
version: version,
mappingGetter: mappingGetter,
}
}
// Init initializes the indexer
func (i *Indexer) Init(_ context.Context) (bool, error) {
if i == nil {
return false, fmt.Errorf("cannot init nil indexer")
}
if i.Indexer != nil {
return false, fmt.Errorf("indexer is already initialized")
}
indexer, version, err := openIndexer(i.indexDir, i.version)
if err != nil {
return false, err
}
if indexer != nil {
i.Indexer = indexer
return true, nil
}
if version != 0 {
log.Warn("Found older bleve index with version %d, Gitea will remove it and rebuild", version)
}
indexMapping, err := i.mappingGetter()
if err != nil {
return false, err
}
indexer, err = bleve.New(i.indexDir, indexMapping)
if err != nil {
return false, err
}
if err = rupture.WriteIndexMetadata(i.indexDir, &rupture.IndexMetadata{
Version: i.version,
}); err != nil {
return false, err
}
i.Indexer = indexer
return false, nil
}
// Ping checks if the indexer is available
func (i *Indexer) Ping(_ context.Context) error {
if i == nil {
return fmt.Errorf("cannot ping nil indexer")
}
if i.Indexer == nil {
return fmt.Errorf("indexer is not initialized")
}
return nil
}
func (i *Indexer) Close() {
if i == nil {
return
}
if err := i.Indexer.Close(); err != nil {
log.Error("Failed to close bleve indexer in %q: %v", i.indexDir, err)
}
i.Indexer = nil
}

49
modules/indexer/internal/bleve/util.go Normal file
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@ -0,0 +1,49 @@
// 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"
"github.com/ethantkoenig/rupture"
)
// 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 := rupture.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
}

33
modules/indexer/internal/db/indexer.go Normal file
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@ -0,0 +1,33 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package db
import (
"context"
"code.gitea.io/gitea/modules/indexer/internal"
)
var _ internal.Indexer = &Indexer{}
// Indexer represents a basic db indexer implementation
type Indexer struct{}
// Init initializes the indexer
func (i *Indexer) Init(_ context.Context) (bool, error) {
// nothing to do
return false, nil
}
// Ping checks if the indexer is available
func (i *Indexer) Ping(_ context.Context) error {
// No need to ping database to check if it is available.
// If the database goes down, Gitea will go down, so nobody will care if the indexer is available.
return nil
}
// Close closes the indexer
func (i *Indexer) Close() {
// nothing to do
}

92
modules/indexer/internal/elasticsearch/indexer.go Normal file
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@ -0,0 +1,92 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package elasticsearch
import (
"context"
"fmt"
"code.gitea.io/gitea/modules/indexer/internal"
"github.com/olivere/elastic/v7"
)
var _ internal.Indexer = &Indexer{}
// Indexer represents a basic elasticsearch indexer implementation
type Indexer struct {
Client *elastic.Client
url string
indexName string
version int
mapping string
}
func NewIndexer(url, indexName string, version int, mapping string) *Indexer {
return &Indexer{
url: url,
indexName: indexName,
version: version,
mapping: mapping,
}
}
// Init initializes the indexer
func (i *Indexer) Init(ctx context.Context) (bool, error) {
if i == nil {
return false, fmt.Errorf("cannot init nil indexer")
}
if i.Client != nil {
return false, fmt.Errorf("indexer is already initialized")
}
client, err := i.initClient()
if err != nil {
return false, err
}
i.Client = client
exists, err := i.Client.IndexExists(i.VersionedIndexName()).Do(ctx)
if err != nil {
return false, err
}
if exists {
return true, nil
}
if err := i.createIndex(ctx); err != nil {
return false, err
}
return exists, nil
}
// Ping checks if the indexer is available
func (i *Indexer) Ping(ctx context.Context) error {
if i == nil {
return fmt.Errorf("cannot ping nil indexer")
}
if i.Client == nil {
return fmt.Errorf("indexer is not initialized")
}
resp, err := i.Client.ClusterHealth().Do(ctx)
if err != nil {
return err
}
if resp.Status != "green" {
// see https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-health.html
return fmt.Errorf("status of elasticsearch cluster is %s", resp.Status)
}
return nil
}
// Close closes the indexer
func (i *Indexer) Close() {
if i == nil {
return
}
i.Client = nil
}

68
modules/indexer/internal/elasticsearch/util.go Normal file
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@ -0,0 +1,68 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package elasticsearch
import (
"context"
"fmt"
"time"
"code.gitea.io/gitea/modules/log"
"github.com/olivere/elastic/v7"
)
// VersionedIndexName returns the full index name with version
func (i *Indexer) VersionedIndexName() string {
return versionedIndexName(i.indexName, i.version)
}
func versionedIndexName(indexName string, version int) string {
if version == 0 {
// Old index name without version
return indexName
}
return fmt.Sprintf("%s.v%d", indexName, version)
}
func (i *Indexer) createIndex(ctx context.Context) error {
createIndex, err := i.Client.CreateIndex(i.VersionedIndexName()).BodyString(i.mapping).Do(ctx)
if err != nil {
return err
}
if !createIndex.Acknowledged {
return fmt.Errorf("create index %s with %s failed", i.VersionedIndexName(), i.mapping)
}
i.checkOldIndexes(ctx)
return nil
}
func (i *Indexer) initClient() (*elastic.Client, error) {
opts := []elastic.ClientOptionFunc{
elastic.SetURL(i.url),
elastic.SetSniff(false),
elastic.SetHealthcheckInterval(10 * time.Second),
elastic.SetGzip(false),
}
logger := log.GetLogger(log.DEFAULT)
opts = append(opts, elastic.SetTraceLog(&log.PrintfLogger{Logf: logger.Trace}))
opts = append(opts, elastic.SetInfoLog(&log.PrintfLogger{Logf: logger.Info}))
opts = append(opts, elastic.SetErrorLog(&log.PrintfLogger{Logf: logger.Error}))
return elastic.NewClient(opts...)
}
func (i *Indexer) checkOldIndexes(ctx context.Context) {
for v := 0; v < i.version; v++ {
indexName := versionedIndexName(i.indexName, v)
exists, err := i.Client.IndexExists(indexName).Do(ctx)
if err == nil && exists {
log.Warn("Found older elasticsearch index named %q, Gitea will keep the old NOT DELETED. You can delete the old version after the upgrade succeed.", indexName)
}
}
}

37
modules/indexer/internal/indexer.go Normal file
View File

@ -0,0 +1,37 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package internal
import (
"context"
"fmt"
)
// Indexer defines an basic indexer interface
type Indexer interface {
// Init initializes the indexer
// returns true if the index was opened/existed (with data populated), false if it was created/not-existed (with no data)
Init(ctx context.Context) (bool, error)
// Ping checks if the indexer is available
Ping(ctx context.Context) error
// Close closes the indexer
Close()
}
// NewDummyIndexer returns a dummy indexer
func NewDummyIndexer() Indexer {
return &dummyIndexer{}
}
type dummyIndexer struct{}
func (d *dummyIndexer) Init(ctx context.Context) (bool, error) {
return false, fmt.Errorf("indexer is not ready")
}
func (d *dummyIndexer) Ping(ctx context.Context) error {
return fmt.Errorf("indexer is not ready")
}
func (d *dummyIndexer) Close() {}

92
modules/indexer/internal/meilisearch/indexer.go Normal file
View File

@ -0,0 +1,92 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package meilisearch
import (
"context"
"fmt"
"github.com/meilisearch/meilisearch-go"
)
// Indexer represents a basic meilisearch indexer implementation
type Indexer struct {
Client *meilisearch.Client
url, apiKey string
indexName string
version int
}
func NewIndexer(url, apiKey, indexName string, version int) *Indexer {
return &Indexer{
url: url,
apiKey: apiKey,
indexName: indexName,
version: version,
}
}
// Init initializes the indexer
func (i *Indexer) Init(_ context.Context) (bool, error) {
if i == nil {
return false, fmt.Errorf("cannot init nil indexer")
}
if i.Client != nil {
return false, fmt.Errorf("indexer is already initialized")
}
i.Client = meilisearch.NewClient(meilisearch.ClientConfig{
Host: i.url,
APIKey: i.apiKey,
})
_, err := i.Client.GetIndex(i.VersionedIndexName())
if err == nil {
return true, nil
}
_, err = i.Client.CreateIndex(&meilisearch.IndexConfig{
Uid: i.VersionedIndexName(),
PrimaryKey: "id",
})
if err != nil {
return false, err
}
i.checkOldIndexes()
_, err = i.Client.Index(i.VersionedIndexName()).UpdateFilterableAttributes(&[]string{"repo_id"})
return false, err
}
// Ping checks if the indexer is available
func (i *Indexer) Ping(ctx context.Context) error {
if i == nil {
return fmt.Errorf("cannot ping nil indexer")
}
if i.Client == nil {
return fmt.Errorf("indexer is not initialized")
}
resp, err := i.Client.Health()
if err != nil {
return err
}
if resp.Status != "available" {
// See https://docs.meilisearch.com/reference/api/health.html#status
return fmt.Errorf("status of meilisearch is not available: %s", resp.Status)
}
return nil
}
// Close closes the indexer
func (i *Indexer) Close() {
if i == nil {
return
}
if i.Client == nil {
return
}
i.Client = nil
}

38
modules/indexer/internal/meilisearch/util.go Normal file
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@ -0,0 +1,38 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package meilisearch
import (
"fmt"
"code.gitea.io/gitea/modules/log"
)
// VersionedIndexName returns the full index name with version
func (i *Indexer) VersionedIndexName() string {
return versionedIndexName(i.indexName, i.version)
}
func versionedIndexName(indexName string, version int) string {
if version == 0 {
// Old index name without version
return indexName
}
// The format of the index name is <index_name>_v<version>, not <index_name>.v<version> like elasticsearch.
// Because meilisearch does not support "." in index name, it should contain only alphanumeric characters, hyphens (-) and underscores (_).
// See https://www.meilisearch.com/docs/learn/core_concepts/indexes#index-uid
return fmt.Sprintf("%s_v%d", indexName, version)
}
func (i *Indexer) checkOldIndexes() {
for v := 0; v < i.version; v++ {
indexName := versionedIndexName(i.indexName, v)
_, err := i.Client.GetIndex(indexName)
if err == nil {
log.Warn("Found older meilisearch index named %q, Gitea will keep the old NOT DELETED. You can delete the old version after the upgrade succeed.", indexName)
}
}
}

155
modules/indexer/issues/bleve.go → modules/indexer/issues/bleve/bleve.go
View File

@ -1,17 +1,14 @@
// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package issues
package bleve
import (
"context"
"fmt"
"os"
"strconv"
gitea_bleve "code.gitea.io/gitea/modules/indexer/bleve"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
inner_bleve "code.gitea.io/gitea/modules/indexer/internal/bleve"
"code.gitea.io/gitea/modules/indexer/issues/internal"
"github.com/blevesearch/bleve/v2"
"github.com/blevesearch/bleve/v2/analysis/analyzer/custom"
@ -19,10 +16,8 @@ import (
"github.com/blevesearch/bleve/v2/analysis/token/lowercase"
"github.com/blevesearch/bleve/v2/analysis/token/unicodenorm"
"github.com/blevesearch/bleve/v2/analysis/tokenizer/unicode"
"github.com/blevesearch/bleve/v2/index/upsidedown"
"github.com/blevesearch/bleve/v2/mapping"
"github.com/blevesearch/bleve/v2/search/query"
"github.com/ethantkoenig/rupture"
)
const (
@ -31,20 +26,6 @@ const (
issueIndexerLatestVersion = 2
)
// indexerID a bleve-compatible unique identifier for an integer id
func indexerID(id int64) string {
return strconv.FormatInt(id, 36)
}
// idOfIndexerID the integer id associated with an indexer id
func idOfIndexerID(indexerID string) (int64, error) {
id, err := strconv.ParseInt(indexerID, 36, 64)
if err != nil {
return 0, fmt.Errorf("Unexpected indexer ID %s: %w", indexerID, err)
}
return id, nil
}
// numericEqualityQuery a numeric equality query for the given value and field
func numericEqualityQuery(value int64, field string) *query.NumericRangeQuery {
f := float64(value)
@ -72,49 +53,16 @@ func addUnicodeNormalizeTokenFilter(m *mapping.IndexMappingImpl) error {
const maxBatchSize = 16
// 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, error) {
_, err := os.Stat(path)
if err != nil && os.IsNotExist(err) {
return nil, nil
} else if err != nil {
return nil, err
}
metadata, err := rupture.ReadIndexMetadata(path)
if err != nil {
return nil, err
}
if metadata.Version < latestVersion {
// the indexer is using a previous version, so we should delete it and
// re-populate
return nil, util.RemoveAll(path)
}
index, err := bleve.Open(path)
if err != nil && err == upsidedown.IncompatibleVersion {
// the indexer was built with a previous version of bleve, so we should
// delete it and re-populate
return nil, util.RemoveAll(path)
} else if err != nil {
return nil, err
}
return index, nil
}
// BleveIndexerData an update to the issue indexer
type BleveIndexerData IndexerData
// IndexerData an update to the issue indexer
type IndexerData internal.IndexerData
// Type returns the document type, for bleve's mapping.Classifier interface.
func (i *BleveIndexerData) Type() string {
func (i *IndexerData) Type() string {
return issueIndexerDocType
}
// createIssueIndexer create an issue indexer if one does not already exist
func createIssueIndexer(path string, latestVersion int) (bleve.Index, error) {
// generateIssueIndexMapping generates the bleve index mapping for issues
func generateIssueIndexMapping() (mapping.IndexMapping, error) {
mapping := bleve.NewIndexMapping()
docMapping := bleve.NewDocumentMapping()
@ -144,68 +92,31 @@ func createIssueIndexer(path string, latestVersion int) (bleve.Index, error) {
mapping.AddDocumentMapping(issueIndexerDocType, docMapping)
mapping.AddDocumentMapping("_all", bleve.NewDocumentDisabledMapping())
index, err := bleve.New(path, mapping)
if err != nil {
return nil, err
}
if err = rupture.WriteIndexMetadata(path, &rupture.IndexMetadata{
Version: latestVersion,
}); err != nil {
return nil, err
}
return index, nil
return mapping, nil
}
var _ Indexer = &BleveIndexer{}
var _ internal.Indexer = &Indexer{}
// BleveIndexer implements Indexer interface
type BleveIndexer struct {
indexDir string
indexer bleve.Index
// Indexer implements Indexer interface
type Indexer struct {
inner *inner_bleve.Indexer
indexer_internal.Indexer // do not composite inner_bleve.Indexer directly to avoid exposing too much
}
// NewBleveIndexer creates a new bleve local indexer
func NewBleveIndexer(indexDir string) *BleveIndexer {
return &BleveIndexer{
indexDir: indexDir,
}
}
// Init will initialize the indexer
func (b *BleveIndexer) Init() (bool, error) {
var err error
b.indexer, err = openIndexer(b.indexDir, issueIndexerLatestVersion)
if err != nil {
return false, err
}
if b.indexer != nil {
return true, nil
}
b.indexer, err = createIssueIndexer(b.indexDir, issueIndexerLatestVersion)
return false, err
}
// Ping does nothing
func (b *BleveIndexer) Ping() bool {
return true
}
// Close will close the bleve indexer
func (b *BleveIndexer) Close() {
if b.indexer != nil {
if err := b.indexer.Close(); err != nil {
log.Error("Error whilst closing indexer: %v", err)
}
// NewIndexer creates a new bleve local indexer
func NewIndexer(indexDir string) *Indexer {
inner := inner_bleve.NewIndexer(indexDir, issueIndexerLatestVersion, generateIssueIndexMapping)
return &Indexer{
Indexer: inner,
inner: inner,
}
}
// Index will save the index data
func (b *BleveIndexer) Index(issues []*IndexerData) error {
batch := gitea_bleve.NewFlushingBatch(b.indexer, maxBatchSize)
func (b *Indexer) Index(_ context.Context, issues []*internal.IndexerData) error {
batch := inner_bleve.NewFlushingBatch(b.inner.Indexer, maxBatchSize)
for _, issue := range issues {
if err := batch.Index(indexerID(issue.ID), struct {
if err := batch.Index(indexer_internal.Base36(issue.ID), struct {
RepoID int64
Title string
Content string
@ -223,10 +134,10 @@ func (b *BleveIndexer) Index(issues []*IndexerData) error {
}
// Delete deletes indexes by ids
func (b *BleveIndexer) Delete(ids ...int64) error {
batch := gitea_bleve.NewFlushingBatch(b.indexer, maxBatchSize)
func (b *Indexer) Delete(_ context.Context, ids ...int64) error {
batch := inner_bleve.NewFlushingBatch(b.inner.Indexer, maxBatchSize)
for _, id := range ids {
if err := batch.Delete(indexerID(id)); err != nil {
if err := batch.Delete(indexer_internal.Base36(id)); err != nil {
return err
}
}
@ -235,7 +146,7 @@ func (b *BleveIndexer) Delete(ids ...int64) error {
// Search searches for issues by given conditions.
// Returns the matching issue IDs
func (b *BleveIndexer) Search(ctx context.Context, keyword string, repoIDs []int64, limit, start int) (*SearchResult, error) {
func (b *Indexer) Search(ctx context.Context, keyword string, repoIDs []int64, limit, start int) (*internal.SearchResult, error) {
var repoQueriesP []*query.NumericRangeQuery
for _, repoID := range repoIDs {
repoQueriesP = append(repoQueriesP, numericEqualityQuery(repoID, "RepoID"))
@ -255,20 +166,20 @@ func (b *BleveIndexer) Search(ctx context.Context, keyword string, repoIDs []int
search := bleve.NewSearchRequestOptions(indexerQuery, limit, start, false)
search.SortBy([]string{"-_score"})
result, err := b.indexer.SearchInContext(ctx, search)
result, err := b.inner.Indexer.SearchInContext(ctx, search)
if err != nil {
return nil, err
}
ret := SearchResult{
Hits: make([]Match, 0, len(result.Hits)),
ret := internal.SearchResult{
Hits: make([]internal.Match, 0, len(result.Hits)),
}
for _, hit := range result.Hits {
id, err := idOfIndexerID(hit.ID)
id, err := indexer_internal.ParseBase36(hit.ID)
if err != nil {
return nil, err
}
ret.Hits = append(ret.Hits, Match{
ret.Hits = append(ret.Hits, internal.Match{
ID: id,
})
}

10
modules/indexer/issues/bleve_test.go → modules/indexer/issues/bleve/bleve_test.go
View File

@ -1,26 +1,28 @@
// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package issues
package bleve
import (
"context"
"testing"
"code.gitea.io/gitea/modules/indexer/issues/internal"
"github.com/stretchr/testify/assert"
)
func TestBleveIndexAndSearch(t *testing.T) {
dir := t.TempDir()
indexer := NewBleveIndexer(dir)
indexer := NewIndexer(dir)
defer indexer.Close()
if _, err := indexer.Init(); err != nil {
if _, err := indexer.Init(context.Background()); err != nil {
assert.Fail(t, "Unable to initialize bleve indexer: %v", err)
return
}
err := indexer.Index([]*IndexerData{
err := indexer.Index(context.Background(), []*internal.IndexerData{
{
ID: 1,
RepoID: 2,

56
modules/indexer/issues/db.go
View File

@ -1,56 +0,0 @@
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package issues
import (
"context"
"code.gitea.io/gitea/models/db"
issues_model "code.gitea.io/gitea/models/issues"
)
// DBIndexer implements Indexer interface to use database's like search
type DBIndexer struct{}
// Init dummy function
func (i *DBIndexer) Init() (bool, error) {
return false, nil
}
// Ping checks if database is available
func (i *DBIndexer) Ping() bool {
return db.GetEngine(db.DefaultContext).Ping() != nil
}
// Index dummy function
func (i *DBIndexer) Index(issue []*IndexerData) error {
return nil
}
// Delete dummy function
func (i *DBIndexer) Delete(ids ...int64) error {
return nil
}
// Close dummy function
func (i *DBIndexer) Close() {
}
// Search dummy function
func (i *DBIndexer) Search(ctx context.Context, kw string, repoIDs []int64, limit, start int) (*SearchResult, error) {
total, ids, err := issues_model.SearchIssueIDsByKeyword(ctx, kw, repoIDs, limit, start)
if err != nil {
return nil, err
}
result := SearchResult{
Total: total,
Hits: make([]Match, 0, limit),
}
for _, id := range ids {
result.Hits = append(result.Hits, Match{
ID: id,
})
}
return &result, nil
}

54
modules/indexer/issues/db/db.go Normal file
View File

@ -0,0 +1,54 @@
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package db
import (
"context"
issues_model "code.gitea.io/gitea/models/issues"
indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
inner_db "code.gitea.io/gitea/modules/indexer/internal/db"
"code.gitea.io/gitea/modules/indexer/issues/internal"
)
var _ internal.Indexer = &Indexer{}
// Indexer implements Indexer interface to use database's like search
type Indexer struct {
indexer_internal.Indexer
}
func NewIndexer() *Indexer {
return &Indexer{
Indexer: &inner_db.Indexer{},
}
}
// Index dummy function
func (i *Indexer) Index(_ context.Context, _ []*internal.IndexerData) error {
return nil
}
// Delete dummy function
func (i *Indexer) Delete(_ context.Context, _ ...int64) error {
return nil
}
// Search searches for issues
func (i *Indexer) Search(ctx context.Context, kw string, repoIDs []int64, limit, start int) (*internal.SearchResult, error) {
total, ids, err := issues_model.SearchIssueIDsByKeyword(ctx, kw, repoIDs, limit, start)
if err != nil {
return nil, err
}
result := internal.SearchResult{
Total: total,
Hits: make([]internal.Match, 0, limit),
}
for _, id := range ids {
result.Hits = append(result.Hits, internal.Match{
ID: id,
})
}
return &result, nil
}

287
modules/indexer/issues/elastic_search.go
View File

@ -1,287 +0,0 @@
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package issues
import (
"context"
"errors"
"fmt"
"net"
"strconv"
"sync"
"time"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"github.com/olivere/elastic/v7"
)
var _ Indexer = &ElasticSearchIndexer{}
// ElasticSearchIndexer implements Indexer interface
type ElasticSearchIndexer struct {
client *elastic.Client
indexerName string
available bool
stopTimer chan struct{}
lock sync.RWMutex
}
// NewElasticSearchIndexer creates a new elasticsearch indexer
func NewElasticSearchIndexer(url, indexerName string) (*ElasticSearchIndexer, error) {
opts := []elastic.ClientOptionFunc{
elastic.SetURL(url),
elastic.SetSniff(false),
elastic.SetHealthcheckInterval(10 * time.Second),
elastic.SetGzip(false),
}
logger := log.GetLogger(log.DEFAULT)
opts = append(opts, elastic.SetTraceLog(&log.PrintfLogger{Logf: logger.Trace}))
opts = append(opts, elastic.SetInfoLog(&log.PrintfLogger{Logf: logger.Info}))
opts = append(opts, elastic.SetErrorLog(&log.PrintfLogger{Logf: logger.Error}))
client, err := elastic.NewClient(opts...)
if err != nil {
return nil, err
}
indexer := &ElasticSearchIndexer{
client: client,
indexerName: indexerName,
available: true,
stopTimer: make(chan struct{}),
}
ticker := time.NewTicker(10 * time.Second)
go func() {
for {
select {
case <-ticker.C:
indexer.checkAvailability()
case <-indexer.stopTimer:
ticker.Stop()
return
}
}
}()
return indexer, nil
}
const (
defaultMapping = `{
"mappings": {
"properties": {
"id": {
"type": "integer",
"index": true
},
"repo_id": {
"type": "integer",
"index": true
},
"title": {
"type": "text",
"index": true
},
"content": {
"type": "text",
"index": true
},
"comments": {
"type" : "text",
"index": true
}
}
}
}`
)
// Init will initialize the indexer
func (b *ElasticSearchIndexer) Init() (bool, error) {
ctx := graceful.GetManager().HammerContext()
exists, err := b.client.IndexExists(b.indexerName).Do(ctx)
if err != nil {
return false, b.checkError(err)
}
if !exists {
mapping := defaultMapping
createIndex, err := b.client.CreateIndex(b.indexerName).BodyString(mapping).Do(ctx)
if err != nil {
return false, b.checkError(err)
}
if !createIndex.Acknowledged {
return false, errors.New("init failed")
}
return false, nil
}
return true, nil
}
// Ping checks if elastic is available
func (b *ElasticSearchIndexer) Ping() bool {
b.lock.RLock()
defer b.lock.RUnlock()
return b.available
}
// Index will save the index data
func (b *ElasticSearchIndexer) Index(issues []*IndexerData) error {
if len(issues) == 0 {
return nil
} else if len(issues) == 1 {
issue := issues[0]
_, err := b.client.Index().
Index(b.indexerName).
Id(fmt.Sprintf("%d", issue.ID)).
BodyJson(map[string]interface{}{
"id": issue.ID,
"repo_id": issue.RepoID,
"title": issue.Title,
"content": issue.Content,
"comments": issue.Comments,
}).
Do(graceful.GetManager().HammerContext())
return b.checkError(err)
}
reqs := make([]elastic.BulkableRequest, 0)
for _, issue := range issues {
reqs = append(reqs,
elastic.NewBulkIndexRequest().
Index(b.indexerName).
Id(fmt.Sprintf("%d", issue.ID)).
Doc(map[string]interface{}{
"id": issue.ID,
"repo_id": issue.RepoID,
"title": issue.Title,
"content": issue.Content,
"comments": issue.Comments,
}),
)
}
_, err := b.client.Bulk().
Index(b.indexerName).
Add(reqs...).
Do(graceful.GetManager().HammerContext())
return b.checkError(err)
}
// Delete deletes indexes by ids
func (b *ElasticSearchIndexer) Delete(ids ...int64) error {
if len(ids) == 0 {
return nil
} else if len(ids) == 1 {
_, err := b.client.Delete().
Index(b.indexerName).
Id(fmt.Sprintf("%d", ids[0])).
Do(graceful.GetManager().HammerContext())
return b.checkError(err)
}
reqs := make([]elastic.BulkableRequest, 0)
for _, id := range ids {
reqs = append(reqs,
elastic.NewBulkDeleteRequest().
Index(b.indexerName).
Id(fmt.Sprintf("%d", id)),
)
}
_, err := b.client.Bulk().
Index(b.indexerName).
Add(reqs...).
Do(graceful.GetManager().HammerContext())
return b.checkError(err)
}
// Search searches for issues by given conditions.
// Returns the matching issue IDs
func (b *ElasticSearchIndexer) Search(ctx context.Context, keyword string, repoIDs []int64, limit, start int) (*SearchResult, error) {
kwQuery := elastic.NewMultiMatchQuery(keyword, "title", "content", "comments")
query := elastic.NewBoolQuery()
query = query.Must(kwQuery)
if len(repoIDs) > 0 {
repoStrs := make([]interface{}, 0, len(repoIDs))
for _, repoID := range repoIDs {
repoStrs = append(repoStrs, repoID)
}
repoQuery := elastic.NewTermsQuery("repo_id", repoStrs...)
query = query.Must(repoQuery)
}
searchResult, err := b.client.Search().
Index(b.indexerName).
Query(query).
Sort("_score", false).
From(start).Size(limit).
Do(ctx)
if err != nil {
return nil, b.checkError(err)
}
hits := make([]Match, 0, limit)
for _, hit := range searchResult.Hits.Hits {
id, _ := strconv.ParseInt(hit.Id, 10, 64)
hits = append(hits, Match{
ID: id,
})
}
return &SearchResult{
Total: searchResult.TotalHits(),
Hits: hits,
}, nil
}
// Close implements indexer
func (b *ElasticSearchIndexer) Close() {
select {
case <-b.stopTimer:
default:
close(b.stopTimer)
}
}
func (b *ElasticSearchIndexer) checkError(err error) error {
var opErr *net.OpError
if !(elastic.IsConnErr(err) || (errors.As(err, &opErr) && (opErr.Op == "dial" || opErr.Op == "read"))) {
return err
}
b.setAvailability(false)
return err
}
func (b *ElasticSearchIndexer) checkAvailability() {
if b.Ping() {
return
}
// Request cluster state to check if elastic is available again
_, err := b.client.ClusterState().Do(graceful.GetManager().ShutdownContext())
if err != nil {
b.setAvailability(false)
return
}
b.setAvailability(true)
}
func (b *ElasticSearchIndexer) setAvailability(available bool) {
b.lock.Lock()
defer b.lock.Unlock()
if b.available == available {
return
}
b.available = available
}

177
modules/indexer/issues/elasticsearch/elasticsearch.go Normal file
View File

@ -0,0 +1,177 @@
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package elasticsearch
import (
"context"
"fmt"
"strconv"
"code.gitea.io/gitea/modules/graceful"
indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
inner_elasticsearch "code.gitea.io/gitea/modules/indexer/internal/elasticsearch"
"code.gitea.io/gitea/modules/indexer/issues/internal"
"github.com/olivere/elastic/v7"
)
const (
issueIndexerLatestVersion = 0
)
var _ internal.Indexer = &Indexer{}
// Indexer implements Indexer interface
type Indexer struct {
inner *inner_elasticsearch.Indexer
indexer_internal.Indexer // do not composite inner_elasticsearch.Indexer directly to avoid exposing too much
}
// NewIndexer creates a new elasticsearch indexer
func NewIndexer(url, indexerName string) *Indexer {
inner := inner_elasticsearch.NewIndexer(url, indexerName, issueIndexerLatestVersion, defaultMapping)
indexer := &Indexer{
inner: inner,
Indexer: inner,
}
return indexer
}
const (
defaultMapping = `{
"mappings": {
"properties": {
"id": {
"type": "integer",
"index": true
},
"repo_id": {
"type": "integer",
"index": true
},
"title": {
"type": "text",
"index": true
},
"content": {
"type": "text",
"index": true
},
"comments": {
"type" : "text",
"index": true
}
}
}
}`
)
// Index will save the index data
func (b *Indexer) Index(ctx context.Context, issues []*internal.IndexerData) error {
if len(issues) == 0 {
return nil
} else if len(issues) == 1 {
issue := issues[0]
_, err := b.inner.Client.Index().
Index(b.inner.VersionedIndexName()).
Id(fmt.Sprintf("%d", issue.ID)).
BodyJson(map[string]interface{}{
"id": issue.ID,
"repo_id": issue.RepoID,
"title": issue.Title,
"content": issue.Content,
"comments": issue.Comments,
}).
Do(ctx)
return err
}
reqs := make([]elastic.BulkableRequest, 0)
for _, issue := range issues {
reqs = append(reqs,
elastic.NewBulkIndexRequest().
Index(b.inner.VersionedIndexName()).
Id(fmt.Sprintf("%d", issue.ID)).
Doc(map[string]interface{}{
"id": issue.ID,
"repo_id": issue.RepoID,
"title": issue.Title,
"content": issue.Content,
"comments": issue.Comments,
}),
)
}
_, err := b.inner.Client.Bulk().
Index(b.inner.VersionedIndexName()).
Add(reqs...).
Do(graceful.GetManager().HammerContext())
return err
}
// Delete deletes indexes by ids
func (b *Indexer) Delete(ctx context.Context, ids ...int64) error {
if len(ids) == 0 {
return nil
} else if len(ids) == 1 {
_, err := b.inner.Client.Delete().
Index(b.inner.VersionedIndexName()).
Id(fmt.Sprintf("%d", ids[0])).
Do(ctx)
return err
}
reqs := make([]elastic.BulkableRequest, 0)
for _, id := range ids {
reqs = append(reqs,
elastic.NewBulkDeleteRequest().
Index(b.inner.VersionedIndexName()).
Id(fmt.Sprintf("%d", id)),
)
}
_, err := b.inner.Client.Bulk().
Index(b.inner.VersionedIndexName()).
Add(reqs...).
Do(graceful.GetManager().HammerContext())
return err
}
// Search searches for issues by given conditions.
// Returns the matching issue IDs
func (b *Indexer) Search(ctx context.Context, keyword string, repoIDs []int64, limit, start int) (*internal.SearchResult, error) {
kwQuery := elastic.NewMultiMatchQuery(keyword, "title", "content", "comments")
query := elastic.NewBoolQuery()
query = query.Must(kwQuery)
if len(repoIDs) > 0 {
repoStrs := make([]interface{}, 0, len(repoIDs))
for _, repoID := range repoIDs {
repoStrs = append(repoStrs, repoID)
}
repoQuery := elastic.NewTermsQuery("repo_id", repoStrs...)
query = query.Must(repoQuery)
}
searchResult, err := b.inner.Client.Search().
Index(b.inner.VersionedIndexName()).
Query(query).
Sort("_score", false).
From(start).Size(limit).
Do(ctx)
if err != nil {
return nil, err
}
hits := make([]internal.Match, 0, limit)
for _, hit := range searchResult.Hits.Hits {
id, _ := strconv.ParseInt(hit.Id, 10, 64)
hits = append(hits, internal.Match{
ID: id,
})
}
return &internal.SearchResult{
Total: searchResult.TotalHits(),
Hits: hits,
}, nil
}

199
modules/indexer/issues/indexer.go
View File

@ -5,16 +5,20 @@ package issues
import (
"context"
"fmt"
"os"
"runtime/pprof"
"sync"
"sync/atomic"
"time"
"code.gitea.io/gitea/models/db"
db_model "code.gitea.io/gitea/models/db"
issues_model "code.gitea.io/gitea/models/issues"
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/indexer/issues/bleve"
"code.gitea.io/gitea/modules/indexer/issues/db"
"code.gitea.io/gitea/modules/indexer/issues/elasticsearch"
"code.gitea.io/gitea/modules/indexer/issues/internal"
"code.gitea.io/gitea/modules/indexer/issues/meilisearch"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/queue"
@ -22,81 +26,22 @@ import (
"code.gitea.io/gitea/modules/util"
)
// IndexerData data stored in the issue indexer
type IndexerData struct {
ID int64 `json:"id"`
RepoID int64 `json:"repo_id"`
Title string `json:"title"`
Content string `json:"content"`
Comments []string `json:"comments"`
IsDelete bool `json:"is_delete"`
IDs []int64 `json:"ids"`
}
// Match represents on search result
type Match struct {
ID int64 `json:"id"`
Score float64 `json:"score"`
}
// SearchResult represents search results
type SearchResult struct {
Total int64
Hits []Match
}
// Indexer defines an interface to indexer issues contents
type Indexer interface {
Init() (bool, error)
Ping() bool
Index(issue []*IndexerData) error
Delete(ids ...int64) error
Search(ctx context.Context, kw string, repoIDs []int64, limit, start int) (*SearchResult, error)
Close()
}
type indexerHolder struct {
indexer Indexer
mutex sync.RWMutex
cond *sync.Cond
cancelled bool
}
func newIndexerHolder() *indexerHolder {
h := &indexerHolder{}
h.cond = sync.NewCond(h.mutex.RLocker())
return h
}
func (h *indexerHolder) cancel() {
h.mutex.Lock()
defer h.mutex.Unlock()
h.cancelled = true
h.cond.Broadcast()
}
func (h *indexerHolder) set(indexer Indexer) {
h.mutex.Lock()
defer h.mutex.Unlock()
h.indexer = indexer
h.cond.Broadcast()
}
func (h *indexerHolder) get() Indexer {
h.mutex.RLock()
defer h.mutex.RUnlock()
if h.indexer == nil && !h.cancelled {
h.cond.Wait()
}
return h.indexer
}
var (
// issueIndexerQueue queue of issue ids to be updated
issueIndexerQueue *queue.WorkerPoolQueue[*IndexerData]
holder = newIndexerHolder()
issueIndexerQueue *queue.WorkerPoolQueue[*internal.IndexerData]
// globalIndexer is the global indexer, it cannot be nil.
// When the real indexer is not ready, it will be a dummy indexer which will return error to explain it's not ready.
// So it's always safe use it as *globalIndexer.Load() and call its methods.
globalIndexer atomic.Pointer[internal.Indexer]
dummyIndexer *internal.Indexer
)
func init() {
i := internal.NewDummyIndexer()
dummyIndexer = &i
globalIndexer.Store(dummyIndexer)
}
// InitIssueIndexer initialize issue indexer, syncReindex is true then reindex until
// all issue index done.
func InitIssueIndexer(syncReindex bool) {
@ -107,33 +52,23 @@ func InitIssueIndexer(syncReindex bool) {
// Create the Queue
switch setting.Indexer.IssueType {
case "bleve", "elasticsearch", "meilisearch":
handler := func(items ...*IndexerData) (unhandled []*IndexerData) {
indexer := holder.get()
if indexer == nil {
log.Warn("Issue indexer handler: indexer is not ready, retry later.")
return items
}
toIndex := make([]*IndexerData, 0, len(items))
handler := func(items ...*internal.IndexerData) (unhandled []*internal.IndexerData) {
indexer := *globalIndexer.Load()
toIndex := make([]*internal.IndexerData, 0, len(items))
for _, indexerData := range items {
log.Trace("IndexerData Process: %d %v %t", indexerData.ID, indexerData.IDs, indexerData.IsDelete)
if indexerData.IsDelete {
if err := indexer.Delete(indexerData.IDs...); err != nil {
if err := indexer.Delete(ctx, indexerData.IDs...); err != nil {
log.Error("Issue indexer handler: failed to from index: %v Error: %v", indexerData.IDs, err)
if !indexer.Ping() {
log.Error("Issue indexer handler: indexer is unavailable when deleting")
unhandled = append(unhandled, indexerData)
}
unhandled = append(unhandled, indexerData)
}
continue
}
toIndex = append(toIndex, indexerData)
}
if err := indexer.Index(toIndex); err != nil {
if err := indexer.Index(ctx, toIndex); err != nil {
log.Error("Error whilst indexing: %v Error: %v", toIndex, err)
if !indexer.Ping() {
log.Error("Issue indexer handler: indexer is unavailable when indexing")
unhandled = append(unhandled, toIndex...)
}
unhandled = append(unhandled, toIndex...)
}
return unhandled
}
@ -144,7 +79,7 @@ func InitIssueIndexer(syncReindex bool) {
log.Fatal("Unable to create issue indexer queue")
}
default:
issueIndexerQueue = queue.CreateSimpleQueue[*IndexerData](ctx, "issue_indexer", nil)
issueIndexerQueue = queue.CreateSimpleQueue[*internal.IndexerData](ctx, "issue_indexer", nil)
}
graceful.GetManager().RunAtTerminate(finished)
@ -154,7 +89,11 @@ func InitIssueIndexer(syncReindex bool) {
pprof.SetGoroutineLabels(ctx)
start := time.Now()
log.Info("PID %d: Initializing Issue Indexer: %s", os.Getpid(), setting.Indexer.IssueType)
var populate bool
var (
issueIndexer internal.Indexer
existed bool
err error
)
switch setting.Indexer.IssueType {
case "bleve":
defer func() {
@ -162,62 +101,45 @@ func InitIssueIndexer(syncReindex bool) {
log.Error("PANIC whilst initializing issue indexer: %v\nStacktrace: %s", err, log.Stack(2))
log.Error("The indexer files are likely corrupted and may need to be deleted")
log.Error("You can completely remove the %q directory to make Gitea recreate the indexes", setting.Indexer.IssuePath)
holder.cancel()
globalIndexer.Store(dummyIndexer)
log.Fatal("PID: %d Unable to initialize the Bleve Issue Indexer at path: %s Error: %v", os.Getpid(), setting.Indexer.IssuePath, err)
}
}()
issueIndexer := NewBleveIndexer(setting.Indexer.IssuePath)
exist, err := issueIndexer.Init()
issueIndexer = bleve.NewIndexer(setting.Indexer.IssuePath)
existed, err = issueIndexer.Init(ctx)
if err != nil {
holder.cancel()
log.Fatal("Unable to initialize Bleve Issue Indexer at path: %s Error: %v", setting.Indexer.IssuePath, err)
}
populate = !exist
holder.set(issueIndexer)
graceful.GetManager().RunAtTerminate(func() {
log.Debug("Closing issue indexer")
issueIndexer := holder.get()
if issueIndexer != nil {
issueIndexer.Close()
}
log.Info("PID: %d Issue Indexer closed", os.Getpid())
})
log.Debug("Created Bleve Indexer")
case "elasticsearch":
issueIndexer, err := NewElasticSearchIndexer(setting.Indexer.IssueConnStr, setting.Indexer.IssueIndexerName)
if err != nil {
log.Fatal("Unable to initialize Elastic Search Issue Indexer at connection: %s Error: %v", setting.Indexer.IssueConnStr, err)
}
exist, err := issueIndexer.Init()
issueIndexer = elasticsearch.NewIndexer(setting.Indexer.IssueConnStr, setting.Indexer.IssueIndexerName)
existed, err = issueIndexer.Init(ctx)
if err != nil {
log.Fatal("Unable to issueIndexer.Init with connection %s Error: %v", setting.Indexer.IssueConnStr, err)
}
populate = !exist
holder.set(issueIndexer)
case "db":
issueIndexer := &DBIndexer{}
holder.set(issueIndexer)
issueIndexer = db.NewIndexer()
case "meilisearch":
issueIndexer, err := NewMeilisearchIndexer(setting.Indexer.IssueConnStr, setting.Indexer.IssueConnAuth, setting.Indexer.IssueIndexerName)
if err != nil {
log.Fatal("Unable to initialize Meilisearch Issue Indexer at connection: %s Error: %v", setting.Indexer.IssueConnStr, err)
}
exist, err := issueIndexer.Init()
issueIndexer = meilisearch.NewIndexer(setting.Indexer.IssueConnStr, setting.Indexer.IssueConnAuth, setting.Indexer.IssueIndexerName)
existed, err = issueIndexer.Init(ctx)
if err != nil {
log.Fatal("Unable to issueIndexer.Init with connection %s Error: %v", setting.Indexer.IssueConnStr, err)
}
populate = !exist
holder.set(issueIndexer)
default:
holder.cancel()
log.Fatal("Unknown issue indexer type: %s", setting.Indexer.IssueType)
}
globalIndexer.Store(&issueIndexer)
graceful.GetManager().RunAtTerminate(func() {
log.Debug("Closing issue indexer")
(*globalIndexer.Load()).Close()
log.Info("PID: %d Issue Indexer closed", os.Getpid())
})
// Start processing the queue
go graceful.GetManager().RunWithCancel(issueIndexerQueue)
// Populate the index
if populate {
if !existed {
if syncReindex {
graceful.GetManager().RunWithShutdownContext(populateIssueIndexer)
} else {
@ -266,8 +188,8 @@ func populateIssueIndexer(ctx context.Context) {
default:
}
repos, _, err := repo_model.SearchRepositoryByName(ctx, &repo_model.SearchRepoOptions{
ListOptions: db.ListOptions{Page: page, PageSize: repo_model.RepositoryListDefaultPageSize},
OrderBy: db.SearchOrderByID,
ListOptions: db_model.ListOptions{Page: page, PageSize: repo_model.RepositoryListDefaultPageSize},
OrderBy: db_model.SearchOrderByID,
Private: true,
Collaborate: util.OptionalBoolFalse,
})
@ -320,7 +242,7 @@ func UpdateIssueIndexer(issue *issues_model.Issue) {
comments = append(comments, comment.Content)
}
}
indexerData := &IndexerData{
indexerData := &internal.IndexerData{
ID: issue.ID,
RepoID: issue.RepoID,
Title: issue.Title,
@ -345,7 +267,7 @@ func DeleteRepoIssueIndexer(ctx context.Context, repo *repo_model.Repository) {
if len(ids) == 0 {
return
}
indexerData := &IndexerData{
indexerData := &internal.IndexerData{
IDs: ids,
IsDelete: true,
}
@ -358,12 +280,7 @@ func DeleteRepoIssueIndexer(ctx context.Context, repo *repo_model.Repository) {
// WARNNING: You have to ensure user have permission to visit repoIDs' issues
func SearchIssuesByKeyword(ctx context.Context, repoIDs []int64, keyword string) ([]int64, error) {
var issueIDs []int64
indexer := holder.get()
if indexer == nil {
log.Error("SearchIssuesByKeyword(): unable to get indexer!")
return nil, fmt.Errorf("unable to get issue indexer")
}
indexer := *globalIndexer.Load()
res, err := indexer.Search(ctx, keyword, repoIDs, 50, 0)
if err != nil {
return nil, err
@ -375,12 +292,6 @@ func SearchIssuesByKeyword(ctx context.Context, repoIDs []int64, keyword string)
}
// IsAvailable checks if issue indexer is available
func IsAvailable() bool {
indexer := holder.get()
if indexer == nil {
log.Error("IsAvailable(): unable to get indexer!")
return false
}
return indexer.Ping()
func IsAvailable(ctx context.Context) bool {
return (*globalIndexer.Load()).Ping(ctx) == nil
}

4
modules/indexer/issues/indexer_test.go
View File

@ -11,6 +11,7 @@ import (
"time"
"code.gitea.io/gitea/models/unittest"
"code.gitea.io/gitea/modules/indexer/issues/bleve"
"code.gitea.io/gitea/modules/setting"
_ "code.gitea.io/gitea/models"
@ -42,8 +43,7 @@ func TestBleveSearchIssues(t *testing.T) {
setting.LoadQueueSettings()
InitIssueIndexer(true)
defer func() {
indexer := holder.get()
if bleveIndexer, ok := indexer.(*BleveIndexer); ok {
if bleveIndexer, ok := (*globalIndexer.Load()).(*bleve.Indexer); ok {
bleveIndexer.Close()
}
}()

42
modules/indexer/issues/internal/indexer.go Normal file
View File

@ -0,0 +1,42 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package internal
import (
"context"
"fmt"
"code.gitea.io/gitea/modules/indexer/internal"
)
// Indexer defines an interface to indexer issues contents
type Indexer interface {
internal.Indexer
Index(ctx context.Context, issue []*IndexerData) error
Delete(ctx context.Context, ids ...int64) error
Search(ctx context.Context, kw string, repoIDs []int64, limit, start int) (*SearchResult, error)
}
// NewDummyIndexer returns a dummy indexer
func NewDummyIndexer() Indexer {
return &dummyIndexer{
Indexer: internal.NewDummyIndexer(),
}
}
type dummyIndexer struct {
internal.Indexer
}
func (d *dummyIndexer) Index(ctx context.Context, issue []*IndexerData) error {
return fmt.Errorf("indexer is not ready")
}
func (d *dummyIndexer) Delete(ctx context.Context, ids ...int64) error {
return fmt.Errorf("indexer is not ready")
}
func (d *dummyIndexer) Search(ctx context.Context, kw string, repoIDs []int64, limit, start int) (*SearchResult, error) {
return nil, fmt.Errorf("indexer is not ready")
}

27
modules/indexer/issues/internal/model.go Normal file
View File

@ -0,0 +1,27 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package internal
// IndexerData data stored in the issue indexer
type IndexerData struct {
ID int64 `json:"id"`
RepoID int64 `json:"repo_id"`
Title string `json:"title"`
Content string `json:"content"`
Comments []string `json:"comments"`
IsDelete bool `json:"is_delete"`
IDs []int64 `json:"ids"`
}
// Match represents on search result
type Match struct {
ID int64 `json:"id"`
Score float64 `json:"score"`
}
// SearchResult represents search results
type SearchResult struct {
Total int64
Hits []Match
}

173
modules/indexer/issues/meilisearch.go
View File

@ -1,173 +0,0 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package issues
import (
"context"
"strconv"
"strings"
"sync"
"time"
"github.com/meilisearch/meilisearch-go"
)
var _ Indexer = &MeilisearchIndexer{}
// MeilisearchIndexer implements Indexer interface
type MeilisearchIndexer struct {
client *meilisearch.Client
indexerName string
available bool
stopTimer chan struct{}
lock sync.RWMutex
}
// MeilisearchIndexer creates a new meilisearch indexer
func NewMeilisearchIndexer(url, apiKey, indexerName string) (*MeilisearchIndexer, error) {
client := meilisearch.NewClient(meilisearch.ClientConfig{
Host: url,
APIKey: apiKey,
})
indexer := &MeilisearchIndexer{
client: client,
indexerName: indexerName,
available: true,
stopTimer: make(chan struct{}),
}
ticker := time.NewTicker(10 * time.Second)
go func() {
for {
select {
case <-ticker.C:
indexer.checkAvailability()
case <-indexer.stopTimer:
ticker.Stop()
return
}
}
}()
return indexer, nil
}
// Init will initialize the indexer
func (b *MeilisearchIndexer) Init() (bool, error) {
_, err := b.client.GetIndex(b.indexerName)
if err == nil {
return true, nil
}
_, err = b.client.CreateIndex(&meilisearch.IndexConfig{
Uid: b.indexerName,
PrimaryKey: "id",
})
if err != nil {
return false, b.checkError(err)
}
_, err = b.client.Index(b.indexerName).UpdateFilterableAttributes(&[]string{"repo_id"})
return false, b.checkError(err)
}
// Ping checks if meilisearch is available
func (b *MeilisearchIndexer) Ping() bool {
b.lock.RLock()
defer b.lock.RUnlock()
return b.available
}
// Index will save the index data
func (b *MeilisearchIndexer) Index(issues []*IndexerData) error {
if len(issues) == 0 {
return nil
}
for _, issue := range issues {
_, err := b.client.Index(b.indexerName).AddDocuments(issue)
if err != nil {
return b.checkError(err)
}
}
// TODO: bulk send index data
return nil
}
// Delete deletes indexes by ids
func (b *MeilisearchIndexer) Delete(ids ...int64) error {
if len(ids) == 0 {
return nil
}
for _, id := range ids {
_, err := b.client.Index(b.indexerName).DeleteDocument(strconv.FormatInt(id, 10))
if err != nil {
return b.checkError(err)
}
}
// TODO: bulk send deletes
return nil
}
// Search searches for issues by given conditions.
// Returns the matching issue IDs
func (b *MeilisearchIndexer) Search(ctx context.Context, keyword string, repoIDs []int64, limit, start int) (*SearchResult, error) {
repoFilters := make([]string, 0, len(repoIDs))
for _, repoID := range repoIDs {
repoFilters = append(repoFilters, "repo_id = "+strconv.FormatInt(repoID, 10))
}
filter := strings.Join(repoFilters, " OR ")
searchRes, err := b.client.Index(b.indexerName).Search(keyword, &meilisearch.SearchRequest{
Filter: filter,
Limit: int64(limit),
Offset: int64(start),
})
if err != nil {
return nil, b.checkError(err)
}
hits := make([]Match, 0, len(searchRes.Hits))
for _, hit := range searchRes.Hits {
hits = append(hits, Match{
ID: int64(hit.(map[string]interface{})["id"].(float64)),
})
}
return &SearchResult{
Total: searchRes.TotalHits,
Hits: hits,
}, nil
}
// Close implements indexer
func (b *MeilisearchIndexer) Close() {
select {
case <-b.stopTimer:
default:
close(b.stopTimer)
}
}
func (b *MeilisearchIndexer) checkError(err error) error {
return err
}
func (b *MeilisearchIndexer) checkAvailability() {
_, err := b.client.Health()
if err != nil {
b.setAvailability(false)
return
}
b.setAvailability(true)
}
func (b *MeilisearchIndexer) setAvailability(available bool) {
b.lock.Lock()
defer b.lock.Unlock()
if b.available == available {
return
}
b.available = available
}

98
modules/indexer/issues/meilisearch/meilisearch.go Normal file
View File

@ -0,0 +1,98 @@
// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package meilisearch
import (
"context"
"strconv"
"strings"
indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
inner_meilisearch "code.gitea.io/gitea/modules/indexer/internal/meilisearch"
"code.gitea.io/gitea/modules/indexer/issues/internal"
"github.com/meilisearch/meilisearch-go"
)
const (
issueIndexerLatestVersion = 0
)
var _ internal.Indexer = &Indexer{}
// Indexer implements Indexer interface
type Indexer struct {
inner *inner_meilisearch.Indexer
indexer_internal.Indexer // do not composite inner_meilisearch.Indexer directly to avoid exposing too much
}
// NewIndexer creates a new meilisearch indexer
func NewIndexer(url, apiKey, indexerName string) *Indexer {
inner := inner_meilisearch.NewIndexer(url, apiKey, indexerName, issueIndexerLatestVersion)
indexer := &Indexer{
inner: inner,
Indexer: inner,
}
return indexer
}
// Index will save the index data
func (b *Indexer) Index(_ context.Context, issues []*internal.IndexerData) error {
if len(issues) == 0 {
return nil
}
for _, issue := range issues {
_, err := b.inner.Client.Index(b.inner.VersionedIndexName()).AddDocuments(issue)
if err != nil {
return err
}
}
// TODO: bulk send index data
return nil
}
// Delete deletes indexes by ids
func (b *Indexer) Delete(_ context.Context, ids ...int64) error {
if len(ids) == 0 {
return nil
}
for _, id := range ids {
_, err := b.inner.Client.Index(b.inner.VersionedIndexName()).DeleteDocument(strconv.FormatInt(id, 10))
if err != nil {
return err
}
}
// TODO: bulk send deletes
return nil
}
// Search searches for issues by given conditions.
// Returns the matching issue IDs
func (b *Indexer) Search(ctx context.Context, keyword string, repoIDs []int64, limit, start int) (*internal.SearchResult, error) {
repoFilters := make([]string, 0, len(repoIDs))
for _, repoID := range repoIDs {
repoFilters = append(repoFilters, "repo_id = "+strconv.FormatInt(repoID, 10))
}
filter := strings.Join(repoFilters, " OR ")
searchRes, err := b.inner.Client.Index(b.inner.VersionedIndexName()).Search(keyword, &meilisearch.SearchRequest{
Filter: filter,
Limit: int64(limit),
Offset: int64(start),
})
if err != nil {
return nil, err
}
hits := make([]internal.Match, 0, len(searchRes.Hits))
for _, hit := range searchRes.Hits {
hits = append(hits, internal.Match{
ID: int64(hit.(map[string]interface{})["id"].(float64)),
})
}
return &internal.SearchResult{
Total: searchRes.TotalHits,
Hits: hits,
}, nil
}

1
modules/indexer/stats/indexer.go
View File

@ -11,6 +11,7 @@ import (
)
// Indexer defines an interface to index repository stats
// TODO: this indexer is quite different from the others, maybe this package should be moved out from module/indexer
type Indexer interface {
Index(id int64) error
Close()

4
routers/web/explore/code.go
View File

@ -79,13 +79,13 @@ func Code(ctx *context.Context) {
if (len(repoIDs) > 0) || isAdmin {
total, searchResults, searchResultLanguages, err = code_indexer.PerformSearch(ctx, repoIDs, language, keyword, page, setting.UI.RepoSearchPagingNum, isMatch)
if err != nil {
if code_indexer.IsAvailable() {
if code_indexer.IsAvailable(ctx) {
ctx.ServerError("SearchResults", err)
return
}
ctx.Data["CodeIndexerUnavailable"] = true
} else {
ctx.Data["CodeIndexerUnavailable"] = !code_indexer.IsAvailable()
ctx.Data["CodeIndexerUnavailable"] = !code_indexer.IsAvailable(ctx)
}
loadRepoIDs := make([]int64, 0, len(searchResults))

2
routers/web/repo/issue.go
View File

@ -191,7 +191,7 @@ func issues(ctx *context.Context, milestoneID, projectID int64, isPullOption uti
if len(keyword) > 0 {
issueIDs, err = issue_indexer.SearchIssuesByKeyword(ctx, []int64{repo.ID}, keyword)
if err != nil {
if issue_indexer.IsAvailable() {
if issue_indexer.IsAvailable(ctx) {
ctx.ServerError("issueIndexer.Search", err)
return
}

4
routers/web/repo/search.go
View File

@ -45,13 +45,13 @@ func Search(ctx *context.Context) {
total, searchResults, searchResultLanguages, err := code_indexer.PerformSearch(ctx, []int64{ctx.Repo.Repository.ID},
language, keyword, page, setting.UI.RepoSearchPagingNum, isMatch)
if err != nil {
if code_indexer.IsAvailable() {
if code_indexer.IsAvailable(ctx) {
ctx.ServerError("SearchResults", err)
return
}
ctx.Data["CodeIndexerUnavailable"] = true
} else {
ctx.Data["CodeIndexerUnavailable"] = !code_indexer.IsAvailable()
ctx.Data["CodeIndexerUnavailable"] = !code_indexer.IsAvailable(ctx)
}
ctx.Data["SourcePath"] = ctx.Repo.Repository.Link()

4
routers/web/user/code.go
View File

@ -71,13 +71,13 @@ func CodeSearch(ctx *context.Context) {
if len(repoIDs) > 0 {
total, searchResults, searchResultLanguages, err = code_indexer.PerformSearch(ctx, repoIDs, language, keyword, page, setting.UI.RepoSearchPagingNum, isMatch)
if err != nil {
if code_indexer.IsAvailable() {
if code_indexer.IsAvailable(ctx) {
ctx.ServerError("SearchResults", err)
return
}
ctx.Data["CodeIndexerUnavailable"] = true
} else {
ctx.Data["CodeIndexerUnavailable"] = !code_indexer.IsAvailable()
ctx.Data["CodeIndexerUnavailable"] = !code_indexer.IsAvailable(ctx)
}
loadRepoIDs := make([]int64, 0, len(searchResults))