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	Merge pull request #2493 from andreynering/fix-2489
Refactoring of inline diff computing to prevent empty diff box.
This commit is contained in:
		| @@ -51,7 +51,6 @@ type DiffLine struct { | ||||
| 	RightIdx      int | ||||
| 	Type          DiffLineType | ||||
| 	Content       string | ||||
| 	ParsedContent template.HTML | ||||
| } | ||||
|  | ||||
| func (d *DiffLine) GetType() int { | ||||
| @@ -112,42 +111,42 @@ func (diffSection *DiffSection) GetLine(lineType DiffLineType, idx int) *DiffLin | ||||
| 	return nil | ||||
| } | ||||
|  | ||||
| // computes diff of each diff line and set the HTML on diffLine.ParsedContent | ||||
| func (diffSection *DiffSection) ComputeLinesDiff() { | ||||
| 	for _, diffLine := range diffSection.Lines { | ||||
| 		var compareDiffLine *DiffLine | ||||
| 		var diff1, diff2 string | ||||
| // computes inline diff for the given line | ||||
| func (diffSection *DiffSection) GetComputedInlineDiffFor(diffLine *DiffLine) template.HTML { | ||||
| 	var compareDiffLine *DiffLine | ||||
| 	var diff1, diff2 string | ||||
|  | ||||
| 		diffLine.ParsedContent = template.HTML(html.EscapeString(diffLine.Content[1:])) | ||||
|  | ||||
| 		// just compute diff for adds and removes | ||||
| 		if diffLine.Type != DIFF_LINE_ADD && diffLine.Type != DIFF_LINE_DEL { | ||||
| 			continue | ||||
| 		} | ||||
|  | ||||
| 		// try to find equivalent diff line. ignore, otherwise | ||||
| 		if diffLine.Type == DIFF_LINE_ADD { | ||||
| 			compareDiffLine = diffSection.GetLine(DIFF_LINE_DEL, diffLine.RightIdx) | ||||
| 			if compareDiffLine == nil { | ||||
| 				continue | ||||
| 			} | ||||
| 			diff1 = compareDiffLine.Content | ||||
| 			diff2 = diffLine.Content | ||||
| 		} else { | ||||
| 			compareDiffLine = diffSection.GetLine(DIFF_LINE_ADD, diffLine.LeftIdx) | ||||
| 			if compareDiffLine == nil { | ||||
| 				continue | ||||
| 			} | ||||
| 			diff1 = diffLine.Content | ||||
| 			diff2 = compareDiffLine.Content | ||||
| 		} | ||||
|  | ||||
| 		dmp := diffmatchpatch.New() | ||||
| 		diffRecord := dmp.DiffMain(diff1[1:], diff2[1:], true) | ||||
| 		diffRecord = dmp.DiffCleanupSemantic(diffRecord) | ||||
|  | ||||
| 		diffLine.ParsedContent = diffToHTML(diffRecord, diffLine.Type) | ||||
| 	getDefaultReturn := func() template.HTML { | ||||
| 		return template.HTML(html.EscapeString(diffLine.Content[1:])) | ||||
| 	} | ||||
|  | ||||
| 	// just compute diff for adds and removes | ||||
| 	if diffLine.Type != DIFF_LINE_ADD && diffLine.Type != DIFF_LINE_DEL { | ||||
| 		return getDefaultReturn() | ||||
| 	} | ||||
|  | ||||
| 	// try to find equivalent diff line. ignore, otherwise | ||||
| 	if diffLine.Type == DIFF_LINE_ADD { | ||||
| 		compareDiffLine = diffSection.GetLine(DIFF_LINE_DEL, diffLine.RightIdx) | ||||
| 		if compareDiffLine == nil { | ||||
| 			return getDefaultReturn() | ||||
| 		} | ||||
| 		diff1 = compareDiffLine.Content | ||||
| 		diff2 = diffLine.Content | ||||
| 	} else { | ||||
| 		compareDiffLine = diffSection.GetLine(DIFF_LINE_ADD, diffLine.LeftIdx) | ||||
| 		if compareDiffLine == nil { | ||||
| 			return getDefaultReturn() | ||||
| 		} | ||||
| 		diff1 = diffLine.Content | ||||
| 		diff2 = compareDiffLine.Content | ||||
| 	} | ||||
|  | ||||
| 	dmp := diffmatchpatch.New() | ||||
| 	diffRecord := dmp.DiffMain(diff1[1:], diff2[1:], true) | ||||
| 	diffRecord = dmp.DiffCleanupSemantic(diffRecord) | ||||
|  | ||||
| 	return diffToHTML(diffRecord, diffLine.Type) | ||||
| } | ||||
|  | ||||
| type DiffFile struct { | ||||
|   | ||||
| @@ -168,12 +168,6 @@ func Diff(ctx *middleware.Context) { | ||||
| 		} | ||||
| 	} | ||||
|  | ||||
| 	for _, diffFile := range diff.Files { | ||||
| 		for _, diffSection := range diffFile.Sections { | ||||
| 			diffSection.ComputeLinesDiff() | ||||
| 		} | ||||
| 	} | ||||
|  | ||||
| 	ctx.Data["IsSplitStyle"] = ctx.Query("style") == "split" | ||||
| 	ctx.Data["Username"] = userName | ||||
| 	ctx.Data["Reponame"] = repoName | ||||
|   | ||||
| @@ -349,12 +349,6 @@ func ViewPullFiles(ctx *middleware.Context) { | ||||
| 	ctx.Data["Diff"] = diff | ||||
| 	ctx.Data["DiffNotAvailable"] = diff.NumFiles() == 0 | ||||
|  | ||||
| 	for _, diffFile := range diff.Files { | ||||
| 		for _, diffSection := range diffFile.Sections { | ||||
| 			diffSection.ComputeLinesDiff() | ||||
| 		} | ||||
| 	} | ||||
|  | ||||
| 	commit, err := gitRepo.GetCommit(endCommitID) | ||||
| 	if err != nil { | ||||
| 		ctx.Handle(500, "GetCommit", err) | ||||
|   | ||||
| @@ -76,13 +76,13 @@ | ||||
| 														<span rel="{{if $line.LeftIdx}}diff-{{Sha1 $file.Name}}L{{$line.LeftIdx}}{{end}}">{{if $line.LeftIdx}}{{$line.LeftIdx}}{{end}}</span> | ||||
| 													</td> | ||||
| 													<td class="lines-code halfwidth"> | ||||
| 														<pre class="wrap">{{if $line.LeftIdx}}{{$line.ParsedContent}}{{end}}</pre> | ||||
| 														<pre class="wrap">{{if $line.LeftIdx}}{{$section.GetComputedInlineDiffFor $line}}{{end}}</pre> | ||||
| 													</td> | ||||
| 													<td class="lines-num lines-num-new"> | ||||
| 														<span rel="{{if $line.RightIdx}}diff-{{Sha1 $file.Name}}R{{$line.RightIdx}}{{end}}">{{if $line.RightIdx}}{{$line.RightIdx}}{{end}}</span> | ||||
| 													</td> | ||||
| 													<td class="lines-code halfwidth"> | ||||
| 														<pre class="wrap">{{if $line.RightIdx}}{{$line.ParsedContent}}{{end}}</pre> | ||||
| 														<pre class="wrap">{{if $line.RightIdx}}{{$section.GetComputedInlineDiffFor $line}}{{end}}</pre> | ||||
| 													</td> | ||||
| 												</tr> | ||||
| 											{{end}} | ||||
| @@ -104,7 +104,7 @@ | ||||
| 													</td> | ||||
| 													{{end}} | ||||
| 													<td class="lines-code"> | ||||
| 														<pre>{{$line.ParsedContent}}</pre> | ||||
| 														<pre>{{$section.GetComputedInlineDiffFor $line}}</pre> | ||||
| 													</td> | ||||
| 												</tr> | ||||
| 											{{end}} | ||||
|   | ||||
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