forked from mirror/gitea
299 lines
10 KiB
Go
299 lines
10 KiB
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package bleve
|
|
|
|
import (
|
|
"context"
|
|
|
|
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"
|
|
"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"
|
|
)
|
|
|
|
const (
|
|
issueIndexerAnalyzer = "issueIndexer"
|
|
issueIndexerDocType = "issueIndexerDocType"
|
|
issueIndexerLatestVersion = 4
|
|
)
|
|
|
|
const unicodeNormalizeName = "unicodeNormalize"
|
|
|
|
func addUnicodeNormalizeTokenFilter(m *mapping.IndexMappingImpl) error {
|
|
return m.AddCustomTokenFilter(unicodeNormalizeName, map[string]any{
|
|
"type": unicodenorm.Name,
|
|
"form": unicodenorm.NFC,
|
|
})
|
|
}
|
|
|
|
const (
|
|
maxBatchSize = 16
|
|
// fuzzyDenominator determines the levenshtein distance per each character of a keyword
|
|
fuzzyDenominator = 4
|
|
)
|
|
|
|
// IndexerData an update to the issue indexer
|
|
type IndexerData internal.IndexerData
|
|
|
|
// Type returns the document type, for bleve's mapping.Classifier interface.
|
|
func (i *IndexerData) Type() string {
|
|
return issueIndexerDocType
|
|
}
|
|
|
|
// generateIssueIndexMapping generates the bleve index mapping for issues
|
|
func generateIssueIndexMapping() (mapping.IndexMapping, error) {
|
|
mapping := bleve.NewIndexMapping()
|
|
docMapping := bleve.NewDocumentMapping()
|
|
|
|
numericFieldMapping := bleve.NewNumericFieldMapping()
|
|
numericFieldMapping.Store = false
|
|
numericFieldMapping.IncludeInAll = false
|
|
docMapping.AddFieldMappingsAt("repo_id", numericFieldMapping)
|
|
|
|
textFieldMapping := bleve.NewTextFieldMapping()
|
|
textFieldMapping.Store = false
|
|
textFieldMapping.IncludeInAll = false
|
|
|
|
boolFieldMapping := bleve.NewBooleanFieldMapping()
|
|
boolFieldMapping.Store = false
|
|
boolFieldMapping.IncludeInAll = false
|
|
|
|
numberFieldMapping := bleve.NewNumericFieldMapping()
|
|
numberFieldMapping.Store = false
|
|
numberFieldMapping.IncludeInAll = false
|
|
|
|
docMapping.AddFieldMappingsAt("is_public", boolFieldMapping)
|
|
|
|
docMapping.AddFieldMappingsAt("title", textFieldMapping)
|
|
docMapping.AddFieldMappingsAt("content", textFieldMapping)
|
|
docMapping.AddFieldMappingsAt("comments", textFieldMapping)
|
|
|
|
docMapping.AddFieldMappingsAt("is_pull", boolFieldMapping)
|
|
docMapping.AddFieldMappingsAt("is_closed", boolFieldMapping)
|
|
docMapping.AddFieldMappingsAt("label_ids", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("no_label", boolFieldMapping)
|
|
docMapping.AddFieldMappingsAt("milestone_id", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("project_id", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("project_board_id", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("poster_id", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("assignee_id", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("mention_ids", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("reviewed_ids", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("review_requested_ids", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("subscriber_ids", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("updated_unix", numberFieldMapping)
|
|
|
|
docMapping.AddFieldMappingsAt("created_unix", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("deadline_unix", numberFieldMapping)
|
|
docMapping.AddFieldMappingsAt("comment_count", numberFieldMapping)
|
|
|
|
if err := addUnicodeNormalizeTokenFilter(mapping); err != nil {
|
|
return nil, err
|
|
} else if err = mapping.AddCustomAnalyzer(issueIndexerAnalyzer, map[string]any{
|
|
"type": custom.Name,
|
|
"char_filters": []string{},
|
|
"tokenizer": unicode.Name,
|
|
"token_filters": []string{unicodeNormalizeName, camelcase.Name, lowercase.Name},
|
|
}); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
mapping.DefaultAnalyzer = issueIndexerAnalyzer
|
|
mapping.AddDocumentMapping(issueIndexerDocType, docMapping)
|
|
mapping.AddDocumentMapping("_all", bleve.NewDocumentDisabledMapping())
|
|
mapping.DefaultMapping = bleve.NewDocumentDisabledMapping() // disable default mapping, avoid indexing unexpected structs
|
|
|
|
return mapping, nil
|
|
}
|
|
|
|
var _ internal.Indexer = &Indexer{}
|
|
|
|
// 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
|
|
}
|
|
|
|
// 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 *Indexer) Index(_ context.Context, issues ...*internal.IndexerData) error {
|
|
batch := inner_bleve.NewFlushingBatch(b.inner.Indexer, maxBatchSize)
|
|
for _, issue := range issues {
|
|
if err := batch.Index(indexer_internal.Base36(issue.ID), (*IndexerData)(issue)); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return batch.Flush()
|
|
}
|
|
|
|
// Delete deletes indexes by ids
|
|
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(indexer_internal.Base36(id)); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return batch.Flush()
|
|
}
|
|
|
|
// Search searches for issues by given conditions.
|
|
// Returns the matching issue IDs
|
|
func (b *Indexer) Search(ctx context.Context, options *internal.SearchOptions) (*internal.SearchResult, error) {
|
|
var queries []query.Query
|
|
|
|
if options.Keyword != "" {
|
|
fuzziness := 0
|
|
if options.IsFuzzyKeyword {
|
|
fuzziness = len(options.Keyword) / fuzzyDenominator
|
|
}
|
|
|
|
queries = append(queries, bleve.NewDisjunctionQuery([]query.Query{
|
|
inner_bleve.MatchPhraseQuery(options.Keyword, "title", issueIndexerAnalyzer, fuzziness),
|
|
inner_bleve.MatchPhraseQuery(options.Keyword, "content", issueIndexerAnalyzer, fuzziness),
|
|
inner_bleve.MatchPhraseQuery(options.Keyword, "comments", issueIndexerAnalyzer, fuzziness),
|
|
}...))
|
|
}
|
|
|
|
if len(options.RepoIDs) > 0 || options.AllPublic {
|
|
var repoQueries []query.Query
|
|
for _, repoID := range options.RepoIDs {
|
|
repoQueries = append(repoQueries, inner_bleve.NumericEqualityQuery(repoID, "repo_id"))
|
|
}
|
|
if options.AllPublic {
|
|
repoQueries = append(repoQueries, inner_bleve.BoolFieldQuery(true, "is_public"))
|
|
}
|
|
queries = append(queries, bleve.NewDisjunctionQuery(repoQueries...))
|
|
}
|
|
|
|
if options.IsPull.Has() {
|
|
queries = append(queries, inner_bleve.BoolFieldQuery(options.IsPull.Value(), "is_pull"))
|
|
}
|
|
if options.IsClosed.Has() {
|
|
queries = append(queries, inner_bleve.BoolFieldQuery(options.IsClosed.Value(), "is_closed"))
|
|
}
|
|
|
|
if options.NoLabelOnly {
|
|
queries = append(queries, inner_bleve.BoolFieldQuery(true, "no_label"))
|
|
} else {
|
|
if len(options.IncludedLabelIDs) > 0 {
|
|
var includeQueries []query.Query
|
|
for _, labelID := range options.IncludedLabelIDs {
|
|
includeQueries = append(includeQueries, inner_bleve.NumericEqualityQuery(labelID, "label_ids"))
|
|
}
|
|
queries = append(queries, bleve.NewConjunctionQuery(includeQueries...))
|
|
} else if len(options.IncludedAnyLabelIDs) > 0 {
|
|
var includeQueries []query.Query
|
|
for _, labelID := range options.IncludedAnyLabelIDs {
|
|
includeQueries = append(includeQueries, inner_bleve.NumericEqualityQuery(labelID, "label_ids"))
|
|
}
|
|
queries = append(queries, bleve.NewDisjunctionQuery(includeQueries...))
|
|
}
|
|
if len(options.ExcludedLabelIDs) > 0 {
|
|
var excludeQueries []query.Query
|
|
for _, labelID := range options.ExcludedLabelIDs {
|
|
q := bleve.NewBooleanQuery()
|
|
q.AddMustNot(inner_bleve.NumericEqualityQuery(labelID, "label_ids"))
|
|
excludeQueries = append(excludeQueries, q)
|
|
}
|
|
queries = append(queries, bleve.NewConjunctionQuery(excludeQueries...))
|
|
}
|
|
}
|
|
|
|
if len(options.MilestoneIDs) > 0 {
|
|
var milestoneQueries []query.Query
|
|
for _, milestoneID := range options.MilestoneIDs {
|
|
milestoneQueries = append(milestoneQueries, inner_bleve.NumericEqualityQuery(milestoneID, "milestone_id"))
|
|
}
|
|
queries = append(queries, bleve.NewDisjunctionQuery(milestoneQueries...))
|
|
}
|
|
|
|
if options.ProjectID.Has() {
|
|
queries = append(queries, inner_bleve.NumericEqualityQuery(options.ProjectID.Value(), "project_id"))
|
|
}
|
|
if options.ProjectBoardID.Has() {
|
|
queries = append(queries, inner_bleve.NumericEqualityQuery(options.ProjectBoardID.Value(), "project_board_id"))
|
|
}
|
|
|
|
if options.PosterID.Has() {
|
|
queries = append(queries, inner_bleve.NumericEqualityQuery(options.PosterID.Value(), "poster_id"))
|
|
}
|
|
|
|
if options.AssigneeID.Has() {
|
|
queries = append(queries, inner_bleve.NumericEqualityQuery(options.AssigneeID.Value(), "assignee_id"))
|
|
}
|
|
|
|
if options.MentionID.Has() {
|
|
queries = append(queries, inner_bleve.NumericEqualityQuery(options.MentionID.Value(), "mention_ids"))
|
|
}
|
|
|
|
if options.ReviewedID.Has() {
|
|
queries = append(queries, inner_bleve.NumericEqualityQuery(options.ReviewedID.Value(), "reviewed_ids"))
|
|
}
|
|
if options.ReviewRequestedID.Has() {
|
|
queries = append(queries, inner_bleve.NumericEqualityQuery(options.ReviewRequestedID.Value(), "review_requested_ids"))
|
|
}
|
|
|
|
if options.SubscriberID.Has() {
|
|
queries = append(queries, inner_bleve.NumericEqualityQuery(options.SubscriberID.Value(), "subscriber_ids"))
|
|
}
|
|
|
|
if options.UpdatedAfterUnix.Has() || options.UpdatedBeforeUnix.Has() {
|
|
queries = append(queries, inner_bleve.NumericRangeInclusiveQuery(
|
|
options.UpdatedAfterUnix,
|
|
options.UpdatedBeforeUnix,
|
|
"updated_unix"))
|
|
}
|
|
|
|
var indexerQuery query.Query = bleve.NewConjunctionQuery(queries...)
|
|
if len(queries) == 0 {
|
|
indexerQuery = bleve.NewMatchAllQuery()
|
|
}
|
|
|
|
skip, limit := indexer_internal.ParsePaginator(options.Paginator)
|
|
search := bleve.NewSearchRequestOptions(indexerQuery, limit, skip, false)
|
|
|
|
if options.SortBy == "" {
|
|
options.SortBy = internal.SortByCreatedAsc
|
|
}
|
|
|
|
search.SortBy([]string{string(options.SortBy), "-_id"})
|
|
|
|
result, err := b.inner.Indexer.SearchInContext(ctx, search)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
ret := &internal.SearchResult{
|
|
Total: int64(result.Total),
|
|
Hits: make([]internal.Match, 0, len(result.Hits)),
|
|
}
|
|
for _, hit := range result.Hits {
|
|
id, err := indexer_internal.ParseBase36(hit.ID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ret.Hits = append(ret.Hits, internal.Match{
|
|
ID: id,
|
|
})
|
|
}
|
|
return ret, nil
|
|
}
|