d5319feb85
similar to how it's already done for the issue_indexer --- *Sponsored by Kithara Software GmbH* Conflicts: routers/web/repo/search.go
353 lines
11 KiB
Go
353 lines
11 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package bleve
|
|
|
|
import (
|
|
"bufio"
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"strconv"
|
|
"strings"
|
|
"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/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"
|
|
|
|
"github.com/blevesearch/bleve/v2"
|
|
analyzer_custom "github.com/blevesearch/bleve/v2/analysis/analyzer/custom"
|
|
analyzer_keyword "github.com/blevesearch/bleve/v2/analysis/analyzer/keyword"
|
|
"github.com/blevesearch/bleve/v2/analysis/token/camelcase"
|
|
"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/mapping"
|
|
"github.com/blevesearch/bleve/v2/search/query"
|
|
"github.com/go-enry/go-enry/v2"
|
|
)
|
|
|
|
const (
|
|
unicodeNormalizeName = "unicodeNormalize"
|
|
maxBatchSize = 16
|
|
)
|
|
|
|
func addUnicodeNormalizeTokenFilter(m *mapping.IndexMappingImpl) error {
|
|
return m.AddCustomTokenFilter(unicodeNormalizeName, map[string]any{
|
|
"type": unicodenorm.Name,
|
|
"form": unicodenorm.NFC,
|
|
})
|
|
}
|
|
|
|
// RepoIndexerData data stored in the repo indexer
|
|
type RepoIndexerData struct {
|
|
RepoID int64
|
|
CommitID string
|
|
Content string
|
|
Language string
|
|
UpdatedAt time.Time
|
|
}
|
|
|
|
// Type returns the document type, for bleve's mapping.Classifier interface.
|
|
func (d *RepoIndexerData) Type() string {
|
|
return repoIndexerDocType
|
|
}
|
|
|
|
const (
|
|
repoIndexerAnalyzer = "repoIndexerAnalyzer"
|
|
repoIndexerDocType = "repoIndexerDocType"
|
|
repoIndexerLatestVersion = 6
|
|
)
|
|
|
|
// generateBleveIndexMapping generates a bleve index mapping for the repo indexer
|
|
func generateBleveIndexMapping() (mapping.IndexMapping, error) {
|
|
docMapping := bleve.NewDocumentMapping()
|
|
numericFieldMapping := bleve.NewNumericFieldMapping()
|
|
numericFieldMapping.IncludeInAll = false
|
|
docMapping.AddFieldMappingsAt("RepoID", numericFieldMapping)
|
|
|
|
textFieldMapping := bleve.NewTextFieldMapping()
|
|
textFieldMapping.IncludeInAll = false
|
|
docMapping.AddFieldMappingsAt("Content", textFieldMapping)
|
|
|
|
termFieldMapping := bleve.NewTextFieldMapping()
|
|
termFieldMapping.IncludeInAll = false
|
|
termFieldMapping.Analyzer = analyzer_keyword.Name
|
|
docMapping.AddFieldMappingsAt("Language", termFieldMapping)
|
|
docMapping.AddFieldMappingsAt("CommitID", termFieldMapping)
|
|
|
|
timeFieldMapping := bleve.NewDateTimeFieldMapping()
|
|
timeFieldMapping.IncludeInAll = false
|
|
docMapping.AddFieldMappingsAt("UpdatedAt", timeFieldMapping)
|
|
|
|
mapping := bleve.NewIndexMapping()
|
|
if err := addUnicodeNormalizeTokenFilter(mapping); err != nil {
|
|
return nil, err
|
|
} else if err := mapping.AddCustomAnalyzer(repoIndexerAnalyzer, map[string]any{
|
|
"type": analyzer_custom.Name,
|
|
"char_filters": []string{},
|
|
"tokenizer": unicode.Name,
|
|
"token_filters": []string{unicodeNormalizeName, camelcase.Name, lowercase.Name},
|
|
}); err != nil {
|
|
return nil, err
|
|
}
|
|
mapping.DefaultAnalyzer = repoIndexerAnalyzer
|
|
mapping.AddDocumentMapping(repoIndexerDocType, docMapping)
|
|
mapping.AddDocumentMapping("_all", bleve.NewDocumentDisabledMapping())
|
|
|
|
return mapping, nil
|
|
}
|
|
|
|
var _ internal.Indexer = &Indexer{}
|
|
|
|
// 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
|
|
}
|
|
|
|
// 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,
|
|
}
|
|
}
|
|
|
|
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) {
|
|
return nil
|
|
}
|
|
|
|
size := update.Size
|
|
|
|
var err error
|
|
if !update.Sized {
|
|
var stdout string
|
|
stdout, _, err = git.NewCommand(ctx, "cat-file", "-s").AddDynamicArguments(update.BlobSha).RunStdString(&git.RunOpts{Dir: repo.RepoPath()})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if size, err = strconv.ParseInt(strings.TrimSpace(stdout), 10, 64); err != nil {
|
|
return fmt.Errorf("misformatted git cat-file output: %w", err)
|
|
}
|
|
}
|
|
|
|
if size > setting.Indexer.MaxIndexerFileSize {
|
|
return b.addDelete(update.Filename, repo, batch)
|
|
}
|
|
|
|
if _, err := batchWriter.Write([]byte(update.BlobSha + "\n")); err != nil {
|
|
return err
|
|
}
|
|
|
|
_, _, size, err = git.ReadBatchLine(batchReader)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fileContents, err := io.ReadAll(io.LimitReader(batchReader, size))
|
|
if err != nil {
|
|
return err
|
|
} else if !typesniffer.DetectContentType(fileContents).IsText() {
|
|
// FIXME: UTF-16 files will probably fail here
|
|
return nil
|
|
}
|
|
|
|
if _, err = batchReader.Discard(1); err != nil {
|
|
return err
|
|
}
|
|
id := internal.FilenameIndexerID(repo.ID, update.Filename)
|
|
return batch.Index(id, &RepoIndexerData{
|
|
RepoID: repo.ID,
|
|
CommitID: commitSha,
|
|
Content: string(charset.ToUTF8DropErrors(fileContents, charset.ConvertOpts{})),
|
|
Language: analyze.GetCodeLanguage(update.Filename, fileContents),
|
|
UpdatedAt: time.Now().UTC(),
|
|
})
|
|
}
|
|
|
|
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)
|
|
}
|
|
|
|
// Index indexes the data
|
|
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!
|
|
if err := git.EnsureValidGitRepository(ctx, repo.RepoPath()); err != nil {
|
|
log.Error("Unable to open git repo: %s for %-v: %v", repo.RepoPath(), repo, err)
|
|
return err
|
|
}
|
|
|
|
batchWriter, batchReader, cancel := git.CatFileBatch(ctx, repo.RepoPath())
|
|
defer cancel()
|
|
|
|
for _, update := range changes.Updates {
|
|
if err := b.addUpdate(ctx, batchWriter, batchReader, sha, update, repo, batch); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
cancel()
|
|
}
|
|
for _, filename := range changes.RemovedFilenames {
|
|
if err := b.addDelete(filename, repo, batch); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return batch.Flush()
|
|
}
|
|
|
|
// Delete deletes indexes by ids
|
|
func (b *Indexer) Delete(_ context.Context, repoID int64) error {
|
|
query := inner_bleve.NumericEqualityQuery(repoID, "RepoID")
|
|
searchRequest := bleve.NewSearchRequestOptions(query, 2147483647, 0, false)
|
|
result, err := b.inner.Indexer.Search(searchRequest)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
batch := inner_bleve.NewFlushingBatch(b.inner.Indexer, maxBatchSize)
|
|
for _, hit := range result.Hits {
|
|
if err = batch.Delete(hit.ID); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return batch.Flush()
|
|
}
|
|
|
|
// Search searches for files in the specified repo.
|
|
// Returns the matching file-paths
|
|
func (b *Indexer) Search(ctx context.Context, opts *internal.SearchOptions) (int64, []*internal.SearchResult, []*internal.SearchResultLanguages, error) {
|
|
var (
|
|
indexerQuery query.Query
|
|
keywordQuery query.Query
|
|
)
|
|
|
|
if opts.IsKeywordFuzzy {
|
|
phraseQuery := bleve.NewMatchPhraseQuery(opts.Keyword)
|
|
phraseQuery.FieldVal = "Content"
|
|
phraseQuery.Analyzer = repoIndexerAnalyzer
|
|
keywordQuery = phraseQuery
|
|
} else {
|
|
prefixQuery := bleve.NewPrefixQuery(opts.Keyword)
|
|
prefixQuery.FieldVal = "Content"
|
|
keywordQuery = prefixQuery
|
|
}
|
|
|
|
if len(opts.RepoIDs) > 0 {
|
|
repoQueries := make([]query.Query, 0, len(opts.RepoIDs))
|
|
for _, repoID := range opts.RepoIDs {
|
|
repoQueries = append(repoQueries, inner_bleve.NumericEqualityQuery(repoID, "RepoID"))
|
|
}
|
|
|
|
indexerQuery = bleve.NewConjunctionQuery(
|
|
bleve.NewDisjunctionQuery(repoQueries...),
|
|
keywordQuery,
|
|
)
|
|
} else {
|
|
indexerQuery = keywordQuery
|
|
}
|
|
|
|
// Save for reuse without language filter
|
|
facetQuery := indexerQuery
|
|
if len(opts.Language) > 0 {
|
|
languageQuery := bleve.NewMatchQuery(opts.Language)
|
|
languageQuery.FieldVal = "Language"
|
|
languageQuery.Analyzer = analyzer_keyword.Name
|
|
|
|
indexerQuery = bleve.NewConjunctionQuery(
|
|
indexerQuery,
|
|
languageQuery,
|
|
)
|
|
}
|
|
|
|
from, pageSize := opts.GetSkipTake()
|
|
searchRequest := bleve.NewSearchRequestOptions(indexerQuery, pageSize, from, false)
|
|
searchRequest.Fields = []string{"Content", "RepoID", "Language", "CommitID", "UpdatedAt"}
|
|
searchRequest.IncludeLocations = true
|
|
|
|
if len(opts.Language) == 0 {
|
|
searchRequest.AddFacet("languages", bleve.NewFacetRequest("Language", 10))
|
|
}
|
|
|
|
result, err := b.inner.Indexer.SearchInContext(ctx, searchRequest)
|
|
if err != nil {
|
|
return 0, nil, nil, err
|
|
}
|
|
|
|
total := int64(result.Total)
|
|
|
|
searchResults := make([]*internal.SearchResult, len(result.Hits))
|
|
for i, hit := range result.Hits {
|
|
startIndex, endIndex := -1, -1
|
|
for _, locations := range hit.Locations["Content"] {
|
|
location := locations[0]
|
|
locationStart := int(location.Start)
|
|
locationEnd := int(location.End)
|
|
if startIndex < 0 || locationStart < startIndex {
|
|
startIndex = locationStart
|
|
}
|
|
if endIndex < 0 || locationEnd > endIndex {
|
|
endIndex = locationEnd
|
|
}
|
|
}
|
|
language := hit.Fields["Language"].(string)
|
|
var updatedUnix timeutil.TimeStamp
|
|
if t, err := time.Parse(time.RFC3339, hit.Fields["UpdatedAt"].(string)); err == nil {
|
|
updatedUnix = timeutil.TimeStamp(t.Unix())
|
|
}
|
|
searchResults[i] = &internal.SearchResult{
|
|
RepoID: int64(hit.Fields["RepoID"].(float64)),
|
|
StartIndex: startIndex,
|
|
EndIndex: endIndex,
|
|
Filename: internal.FilenameOfIndexerID(hit.ID),
|
|
Content: hit.Fields["Content"].(string),
|
|
CommitID: hit.Fields["CommitID"].(string),
|
|
UpdatedUnix: updatedUnix,
|
|
Language: language,
|
|
Color: enry.GetColor(language),
|
|
}
|
|
}
|
|
|
|
searchResultLanguages := make([]*internal.SearchResultLanguages, 0, 10)
|
|
if len(opts.Language) > 0 {
|
|
// Use separate query to go get all language counts
|
|
facetRequest := bleve.NewSearchRequestOptions(facetQuery, 1, 0, false)
|
|
facetRequest.Fields = []string{"Content", "RepoID", "Language", "CommitID", "UpdatedAt"}
|
|
facetRequest.IncludeLocations = true
|
|
facetRequest.AddFacet("languages", bleve.NewFacetRequest("Language", 10))
|
|
|
|
if result, err = b.inner.Indexer.Search(facetRequest); err != nil {
|
|
return 0, nil, nil, err
|
|
}
|
|
|
|
}
|
|
languagesFacet := result.Facets["languages"]
|
|
for _, term := range languagesFacet.Terms.Terms() {
|
|
if len(term.Term) == 0 {
|
|
continue
|
|
}
|
|
searchResultLanguages = append(searchResultLanguages, &internal.SearchResultLanguages{
|
|
Language: term.Term,
|
|
Color: enry.GetColor(term.Term),
|
|
Count: term.Count,
|
|
})
|
|
}
|
|
return total, searchResults, searchResultLanguages, nil
|
|
}
|