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Updated tokenizer to better matching when search for code snippets (#32261)

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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>
This commit is contained in:
Bruno Sofiato
2024-11-06 17:51:20 -03:00
committed by GitHub
parent b573512312
commit f64fbd9b74
17 changed files with 83 additions and 12 deletions
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tests/gitea-repositories-meta/org42/search-by-path.git/packed-refs
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@@ -4,7 +4,7 @@
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3731fe53b763859aaf83e703ee731f6b9447ff1e refs/heads/master
9f894b61946fd2f7b8b9d8e370e4d62f915522f5 refs/heads/master
62fb502a7172d4453f0322a2cc85bddffa57f07a refs/heads/pr-to-update
4649299398e4d39a5c09eb4f534df6f1e1eb87cc refs/heads/sub-home-md-img-check
3fa2f829675543ecfc16b2891aebe8bf0608a8f4 refs/notes/commits