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Determine fuzziness of bleve indexer by keyword length (#29706)

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also bleve did match on fuzzy search and the other way around. this also fix that bug.
This commit is contained in:
6543 2024-03-23 16:45:13 +01:00 committed by GitHub
parent 1cdc6c3a4e
commit b9c57fb78e
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GPG Key ID: B5690EEEBB952194
4 changed files with 29 additions and 37 deletions
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15
modules/indexer/code/bleve/bleve.go
View File

@ -39,6 +39,8 @@ import (
const (
unicodeNormalizeName = "unicodeNormalize"
maxBatchSize = 16
// fuzzyDenominator determines the levenshtein distance per each character of a keyword
fuzzyDenominator = 4
)
func addUnicodeNormalizeTokenFilter(m *mapping.IndexMappingImpl) error {
@ -239,15 +241,12 @@ func (b *Indexer) Search(ctx context.Context, opts *internal.SearchOptions) (int
keywordQuery query.Query
)
phraseQuery := bleve.NewMatchPhraseQuery(opts.Keyword)
phraseQuery.FieldVal = "Content"
phraseQuery.Analyzer = repoIndexerAnalyzer
keywordQuery = phraseQuery
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
phraseQuery.Fuzziness = len(opts.Keyword) / fuzzyDenominator
}
if len(opts.RepoIDs) > 0 {

10
modules/indexer/internal/bleve/query.go
View File

@ -20,17 +20,11 @@ func NumericEqualityQuery(value int64, field string) *query.NumericRangeQuery {
}
// MatchPhraseQuery generates a match phrase query for the given phrase, field and analyzer
func MatchPhraseQuery(matchPhrase, field, analyzer string) *query.MatchPhraseQuery {
func MatchPhraseQuery(matchPhrase, field, analyzer string, fuzziness int) *query.MatchPhraseQuery {
q := bleve.NewMatchPhraseQuery(matchPhrase)
q.FieldVal = field
q.Analyzer = analyzer
return q
}
// PrefixQuery generates a match prefix query for the given prefix and field
func PrefixQuery(matchPrefix, field string) *query.PrefixQuery {
q := bleve.NewPrefixQuery(matchPrefix)
q.FieldVal = field
q.Fuzziness = fuzziness
return q
}

25
modules/indexer/issues/bleve/bleve.go
View File

@ -35,7 +35,11 @@ func addUnicodeNormalizeTokenFilter(m *mapping.IndexMappingImpl) error {
})
}
const maxBatchSize = 16
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
@ -156,19 +160,16 @@ func (b *Indexer) Search(ctx context.Context, options *internal.SearchOptions) (
var queries []query.Query
if options.Keyword != "" {
fuzziness := 0
if options.IsFuzzyKeyword {
queries = append(queries, bleve.NewDisjunctionQuery([]query.Query{
inner_bleve.MatchPhraseQuery(options.Keyword, "title", issueIndexerAnalyzer),
inner_bleve.MatchPhraseQuery(options.Keyword, "content", issueIndexerAnalyzer),
inner_bleve.MatchPhraseQuery(options.Keyword, "comments", issueIndexerAnalyzer),
}...))
} else {
queries = append(queries, bleve.NewDisjunctionQuery([]query.Query{
inner_bleve.PrefixQuery(options.Keyword, "title"),
inner_bleve.PrefixQuery(options.Keyword, "content"),
inner_bleve.PrefixQuery(options.Keyword, "comments"),
}...))
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 {

16
tests/integration/repo_search_test.go
View File

@ -32,7 +32,7 @@ func TestSearchRepo(t *testing.T) {
repo, err := repo_model.GetRepositoryByOwnerAndName(db.DefaultContext, "user2", "repo1")
assert.NoError(t, err)
executeIndexer(t, repo, code_indexer.UpdateRepoIndexer)
code_indexer.UpdateRepoIndexer(repo)
testSearch(t, "/user2/repo1/search?q=Description&page=1", []string{"README.md"})
@ -42,12 +42,14 @@ func TestSearchRepo(t *testing.T) {
repo, err = repo_model.GetRepositoryByOwnerAndName(db.DefaultContext, "user2", "glob")
assert.NoError(t, err)
executeIndexer(t, repo, code_indexer.UpdateRepoIndexer)
code_indexer.UpdateRepoIndexer(repo)
testSearch(t, "/user2/glob/search?q=loren&page=1", []string{"a.txt"})
testSearch(t, "/user2/glob/search?q=file3&page=1", []string{"x/b.txt"})
testSearch(t, "/user2/glob/search?q=file4&page=1", []string{})
testSearch(t, "/user2/glob/search?q=file5&page=1", []string{})
testSearch(t, "/user2/glob/search?q=loren&page=1&t=match", []string{"a.txt"})
testSearch(t, "/user2/glob/search?q=file3&page=1", []string{"x/b.txt", "a.txt"})
testSearch(t, "/user2/glob/search?q=file3&page=1&t=match", []string{"x/b.txt", "a.txt"})
testSearch(t, "/user2/glob/search?q=file4&page=1&t=match", []string{"x/b.txt", "a.txt"})
testSearch(t, "/user2/glob/search?q=file5&page=1&t=match", []string{"x/b.txt", "a.txt"})
}
func testSearch(t *testing.T, url string, expected []string) {
@ -57,7 +59,3 @@ func testSearch(t *testing.T, url string, expected []string) {
filenames := resultFilenames(t, NewHTMLParser(t, resp.Body))
assert.EqualValues(t, expected, filenames)
}
func executeIndexer(t *testing.T, repo *repo_model.Repository, op func(*repo_model.Repository)) {
op(repo)
}