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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: 
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wxiaoguang
GitHub
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commit
6886706f5a
3 changed files with 35 additions and 32 deletions
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@ -474,7 +474,7 @@ func ParsePatch(maxLines, maxLineCharacters, maxFiles int, reader io.Reader, ski
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sb := strings.Builder{}
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// OK let's set a reasonable buffer size.
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// This should be let's say at least the size of maxLineCharacters or 4096 whichever is larger.
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// This should be at least the size of maxLineCharacters or 4096 whichever is larger.
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readerSize := maxLineCharacters
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if readerSize < 4096 {
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readerSize = 4096
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@ -1,9 +1,9 @@
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{{$file := .file}}
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{{range $j, $section := $file.Sections}}
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{{range $k, $line := $section.Lines}}
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{{if or $.root.AfterCommitID (ne .GetType 4)}}
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<tr class="{{DiffLineTypeToStr .GetType}}-code nl-{{$k}} ol-{{$k}}" data-line-type="{{DiffLineTypeToStr .GetType}}">
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{{if eq .GetType 4}}
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<tr class="{{DiffLineTypeToStr .GetType}}-code nl-{{$k}} ol-{{$k}}" data-line-type="{{DiffLineTypeToStr .GetType}}">
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{{if eq .GetType 4}}
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{{if $.root.AfterCommitID}}
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<td colspan="2" class="lines-num">
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{{if or (eq $line.GetExpandDirection 3) (eq $line.GetExpandDirection 5)}}
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<a role="button" class="blob-excerpt" data-url="{{$.root.RepoLink}}/blob_excerpt/{{PathEscape $.root.AfterCommitID}}" data-query="{{$line.GetBlobExcerptQuery}}&style=unified&direction=down&wiki={{$.root.PageIsWiki}}" data-anchor="diff-{{$file.NameHash}}K{{$line.SectionInfo.RightIdx}}">
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@ -22,35 +22,38 @@
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{{end}}
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</td>
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{{else}}
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<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}"><span rel="{{if $line.LeftIdx}}diff-{{$file.NameHash}}L{{$line.LeftIdx}}{{end}}"></span></td>
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<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{$file.NameHash}}R{{$line.RightIdx}}{{end}}"></span></td>
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{{/* for code file preview page or comment diffs on pull comment pages, do not show the expansion arrows */}}
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<td colspan="2" class="lines-num"></td>
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{{end}}
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{{$inlineDiff := $section.GetComputedInlineDiffFor $line $.root.locale -}}
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<td class="lines-escape">{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff "locale" $.root.locale}}"></a>{{end}}</td>
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<td class="lines-type-marker"><span class="gt-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
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{{if eq .GetType 4}}
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<td class="chroma lines-code blob-hunk">{{/*
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*/}}{{template "repo/diff/section_code" dict "diff" $inlineDiff "locale" $.root.locale}}{{/*
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*/}}</td>
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{{else}}
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<td class="chroma lines-code{{if (not $line.RightIdx)}} lines-code-old{{end}}">{{/*
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*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles}}{{/*
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*/}}<a class="ui primary button add-code-comment add-code-comment-{{if $line.RightIdx}}right{{else}}left{{end}}{{if (not $line.CanComment)}} invisible{{end}}" data-side="{{if $line.RightIdx}}right{{else}}left{{end}}" data-idx="{{if $line.RightIdx}}{{$line.RightIdx}}{{else}}{{$line.LeftIdx}}{{end}}">{{/*
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*/}}{{svg "octicon-plus"}}{{/*
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*/}}</a>{{/*
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*/}}{{end}}{{/*
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*/}}{{template "repo/diff/section_code" dict "diff" $inlineDiff "locale" $.root.locale}}{{/*
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*/}}</td>
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{{end}}
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</tr>
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{{if gt (len $line.Comments) 0}}
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<tr class="add-comment" data-line-type="{{DiffLineTypeToStr .GetType}}">
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<td colspan="3" class="lines-num"></td>
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<td class="add-comment-left add-comment-right" colspan="5">
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{{template "repo/diff/conversation" mergeinto $.root "comments" $line.Comments}}
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</td>
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</tr>
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{{else}}
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<td class="lines-num lines-num-old" data-line-num="{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}"><span rel="{{if $line.LeftIdx}}diff-{{$file.NameHash}}L{{$line.LeftIdx}}{{end}}"></span></td>
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<td class="lines-num lines-num-new" data-line-num="{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}"><span rel="{{if $line.RightIdx}}diff-{{$file.NameHash}}R{{$line.RightIdx}}{{end}}"></span></td>
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{{end}}
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{{$inlineDiff := $section.GetComputedInlineDiffFor $line $.root.locale -}}
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<td class="lines-escape">{{if $inlineDiff.EscapeStatus.Escaped}}<a href="" class="toggle-escape-button" title="{{template "repo/diff/escape_title" dict "diff" $inlineDiff "locale" $.root.locale}}"></a>{{end}}</td>
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<td class="lines-type-marker"><span class="gt-mono" data-type-marker="{{$line.GetLineTypeMarker}}"></span></td>
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{{if eq .GetType 4}}
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<td class="chroma lines-code blob-hunk">{{/*
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*/}}{{template "repo/diff/section_code" dict "diff" $inlineDiff "locale" $.root.locale}}{{/*
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*/}}</td>
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{{else}}
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<td class="chroma lines-code{{if (not $line.RightIdx)}} lines-code-old{{end}}">{{/*
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*/}}{{if and $.root.SignedUserID $.root.PageIsPullFiles}}{{/*
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*/}}<a class="ui primary button add-code-comment add-code-comment-{{if $line.RightIdx}}right{{else}}left{{end}}{{if (not $line.CanComment)}} invisible{{end}}" data-side="{{if $line.RightIdx}}right{{else}}left{{end}}" data-idx="{{if $line.RightIdx}}{{$line.RightIdx}}{{else}}{{$line.LeftIdx}}{{end}}">{{/*
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*/}}{{svg "octicon-plus"}}{{/*
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*/}}</a>{{/*
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*/}}{{end}}{{/*
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*/}}{{template "repo/diff/section_code" dict "diff" $inlineDiff "locale" $.root.locale}}{{/*
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*/}}</td>
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{{end}}
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</tr>
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{{if gt (len $line.Comments) 0}}
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<tr class="add-comment" data-line-type="{{DiffLineTypeToStr .GetType}}">
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<td colspan="3" class="lines-num"></td>
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<td class="add-comment-left add-comment-right" colspan="5">
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{{template "repo/diff/conversation" mergeinto $.root "comments" $line.Comments}}
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</td>
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</tr>
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{{end}}
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{{end}}
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{{end}}
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@ -1,6 +1,6 @@
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<div class="diff-file-box">
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<div class="ui attached table segment">
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<div class="file-body file-code code-view code-diff-unified unicode-escaped">
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<div class="file-body file-code code-diff code-diff-unified unicode-escaped">
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<table>
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<tbody>
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{{template "repo/diff/section_unified" dict "file" .File "root" $}}
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