mirror of
https://github.com/go-gitea/gitea.git
synced 2024-12-05 00:44:12 +08:00
f64fbd9b74
This PR improves the accuracy of Gitea's code search.
Currently, Gitea does not consider statements such as
`onsole.log("hello")` as hits when the user searches for `log`. The
culprit is how both ES and Bleve are tokenizing the file contents (in
both cases, `console.log` is a whole token).
In ES' case, we changed the tokenizer to
[simple_pattern_split](https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-simplepatternsplit-tokenizer.html#:~:text=The%20simple_pattern_split%20tokenizer%20uses%20a,the%20tokenization%20is%20generally%20faster.).
In such a case, tokens are words formed by digits and letters. In
Bleve's case, it employs a
[letter](https://blevesearch.com/docs/Tokenizers/) tokenizer.
Resolves #32220
---------
Signed-off-by: Bruno Sofiato <bruno.sofiato@gmail.com>
342 lines
8.5 KiB
Go
342 lines
8.5 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package code
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import (
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"context"
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"os"
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"slices"
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"testing"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/models/unittest"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/indexer/code/bleve"
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"code.gitea.io/gitea/modules/indexer/code/elasticsearch"
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"code.gitea.io/gitea/modules/indexer/code/internal"
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_ "code.gitea.io/gitea/models"
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_ "code.gitea.io/gitea/models/actions"
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_ "code.gitea.io/gitea/models/activities"
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"github.com/stretchr/testify/assert"
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_ "github.com/mattn/go-sqlite3"
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)
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type codeSearchResult struct {
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Filename string
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Content string
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}
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func TestMain(m *testing.M) {
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unittest.MainTest(m)
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}
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func testIndexer(name string, t *testing.T, indexer internal.Indexer) {
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t.Run(name, func(t *testing.T) {
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assert.NoError(t, setupRepositoryIndexes(git.DefaultContext, indexer))
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keywords := []struct {
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RepoIDs []int64
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Keyword string
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Langs int
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Results []codeSearchResult
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}{
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// Search for an exact match on the contents of a file
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// This scenario yields a single result (the file README.md on the repo '1')
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{
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RepoIDs: nil,
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Keyword: "Description",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "README.md",
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Content: "# repo1\n\nDescription for repo1",
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},
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},
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},
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// Search for an exact match on the contents of a file within the repo '2'.
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// This scenario yields no results
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{
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RepoIDs: []int64{2},
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Keyword: "Description",
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Langs: 0,
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},
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// Search for an exact match on the contents of a file
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// This scenario yields a single result (the file README.md on the repo '1')
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{
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RepoIDs: nil,
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Keyword: "repo1",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "README.md",
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Content: "# repo1\n\nDescription for repo1",
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},
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},
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},
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// Search for an exact match on the contents of a file within the repo '2'.
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// This scenario yields no results
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{
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RepoIDs: []int64{2},
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Keyword: "repo1",
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Langs: 0,
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},
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// Search for a non-existing term.
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// This scenario yields no results
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{
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RepoIDs: nil,
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Keyword: "non-exist",
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Langs: 0,
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},
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// Search for an exact match on the contents of a file within the repo '62'.
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// This scenario yields a single result (the file avocado.md on the repo '62')
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{
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RepoIDs: []int64{62},
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Keyword: "pineaple",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "avocado.md",
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Content: "# repo1\n\npineaple pie of cucumber juice",
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},
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},
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},
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// Search for an exact match on the filename within the repo '62'.
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// This scenario yields a single result (the file avocado.md on the repo '62')
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{
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RepoIDs: []int64{62},
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Keyword: "avocado.md",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "avocado.md",
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Content: "# repo1\n\npineaple pie of cucumber juice",
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},
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},
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},
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// Search for an partial match on the filename within the repo '62'.
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// This scenario yields a single result (the file avocado.md on the repo '62')
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{
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RepoIDs: []int64{62},
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Keyword: "avo",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "avocado.md",
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Content: "# repo1\n\npineaple pie of cucumber juice",
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},
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},
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},
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// Search for matches on both the contents and the filenames within the repo '62'.
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// This scenario yields two results: the first result is baed on the file (cucumber.md) while the second is based on the contents
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{
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RepoIDs: []int64{62},
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Keyword: "cucumber",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "cucumber.md",
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Content: "Salad is good for your health",
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},
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{
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Filename: "avocado.md",
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Content: "# repo1\n\npineaple pie of cucumber juice",
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},
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},
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},
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// Search for matches on the filenames within the repo '62'.
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// This scenario yields two results (both are based on filename, the first one is an exact match)
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{
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RepoIDs: []int64{62},
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Keyword: "ham",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "ham.md",
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Content: "This is also not cheese",
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},
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{
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Filename: "potato/ham.md",
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Content: "This is not cheese",
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},
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},
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},
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// Search for matches on the contents of files within the repo '62'.
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// This scenario yields two results (both are based on contents, the first one is an exact match where as the second is a 'fuzzy' one)
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{
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RepoIDs: []int64{62},
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Keyword: "This is not cheese",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "potato/ham.md",
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Content: "This is not cheese",
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},
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{
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Filename: "ham.md",
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Content: "This is also not cheese",
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},
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},
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},
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// Search for matches on the contents of files regardless of case.
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{
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RepoIDs: nil,
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Keyword: "dESCRIPTION",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "README.md",
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Content: "# repo1\n\nDescription for repo1",
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},
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},
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},
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// Search for an exact match on the filename within the repo '62' (case insenstive).
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// This scenario yields a single result (the file avocado.md on the repo '62')
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{
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RepoIDs: []int64{62},
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Keyword: "AVOCADO.MD",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "avocado.md",
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Content: "# repo1\n\npineaple pie of cucumber juice",
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},
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},
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},
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// Search for matches on the contents of files when the criteria is a expression.
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{
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RepoIDs: []int64{62},
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Keyword: "console.log",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "example-file.js",
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Content: "console.log(\"Hello, World!\")",
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},
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},
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},
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// Search for matches on the contents of files when the criteria is part of a expression.
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{
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RepoIDs: []int64{62},
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Keyword: "log",
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Langs: 1,
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Results: []codeSearchResult{
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{
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Filename: "example-file.js",
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Content: "console.log(\"Hello, World!\")",
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},
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},
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},
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}
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for _, kw := range keywords {
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t.Run(kw.Keyword, func(t *testing.T) {
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total, res, langs, err := indexer.Search(context.TODO(), &internal.SearchOptions{
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RepoIDs: kw.RepoIDs,
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Keyword: kw.Keyword,
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Paginator: &db.ListOptions{
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Page: 1,
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PageSize: 10,
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},
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IsKeywordFuzzy: true,
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})
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assert.NoError(t, err)
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assert.Len(t, langs, kw.Langs)
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hits := make([]codeSearchResult, 0, len(res))
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if total > 0 {
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assert.NotEmpty(t, kw.Results, "The given scenario does not provide any expected results")
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}
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for _, hit := range res {
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hits = append(hits, codeSearchResult{
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Filename: hit.Filename,
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Content: hit.Content,
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})
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}
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lastIndex := -1
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for _, expected := range kw.Results {
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index := slices.Index(hits, expected)
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if index == -1 {
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assert.Failf(t, "Result not found", "Expected %v in %v", expected, hits)
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} else if lastIndex > index {
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assert.Failf(t, "Result is out of order", "The order of %v within %v is wrong", expected, hits)
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} else {
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lastIndex = index
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}
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}
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})
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}
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assert.NoError(t, tearDownRepositoryIndexes(indexer))
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})
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}
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func TestBleveIndexAndSearch(t *testing.T) {
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unittest.PrepareTestEnv(t)
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dir := t.TempDir()
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idx := bleve.NewIndexer(dir)
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_, err := idx.Init(context.Background())
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if err != nil {
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if idx != nil {
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idx.Close()
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}
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assert.FailNow(t, "Unable to create bleve indexer Error: %v", err)
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}
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defer idx.Close()
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testIndexer("beleve", t, idx)
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}
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func TestESIndexAndSearch(t *testing.T) {
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unittest.PrepareTestEnv(t)
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u := os.Getenv("TEST_INDEXER_CODE_ES_URL")
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if u == "" {
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t.SkipNow()
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return
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}
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indexer := elasticsearch.NewIndexer(u, "gitea_codes")
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if _, err := indexer.Init(context.Background()); err != nil {
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if indexer != nil {
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indexer.Close()
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}
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assert.FailNow(t, "Unable to init ES indexer Error: %v", err)
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}
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defer indexer.Close()
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testIndexer("elastic_search", t, indexer)
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}
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func setupRepositoryIndexes(ctx context.Context, indexer internal.Indexer) error {
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for _, repoID := range repositoriesToSearch() {
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if err := index(ctx, indexer, repoID); err != nil {
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return err
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}
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}
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return nil
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}
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func tearDownRepositoryIndexes(indexer internal.Indexer) error {
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for _, repoID := range repositoriesToSearch() {
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if err := indexer.Delete(context.Background(), repoID); err != nil {
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return err
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}
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}
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return nil
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}
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func repositoriesToSearch() []int64 {
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return []int64{1, 62}
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}
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