forgejo/services/gitdiff
wxiaoguang 6886706f5a
Fix broken code editor diff preview (#23307)
Close #23265, the code editor diff preview has been broken for long
time.

* Fix the regression for `data-line-num`
    * `.code-diff` is necessary to show the line number
* Fix the regression for #12434
* The diff:
[12434](https://github.com/go-gitea/gitea/pull/12434/files?diff=unified&w=1)
    * It hides the Type(4) (aka HunkHeader)  for unexpected cases.


Diff with ignoring whitespaces:
https://github.com/go-gitea/gitea/pull/23307/files?diff=unified&w=1

Before: see the issue #23265

After:

![image](https://user-images.githubusercontent.com/2114189/222942810-286dc9af-0b39-4e9d-8585-8c299b881241.png)
2023-03-06 09:37:58 +08:00
..
testdata/academic-module
csv.go
csv_test.go
gitdiff.go Fix broken code editor diff preview (#23307) 2023-03-06 09:37:58 +08:00
gitdiff_test.go
highlightdiff.go
highlightdiff_test.go
main_test.go