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Fix error in diff html rendering #13191

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Merged
merged 5 commits into from
Oct 18, 2020
Merged

Fix error in diff html rendering #13191

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a2143dd
Fix error in diff html rendering
mrsdizzie Oct 17, 2020
50f040d
Update services/gitdiff/gitdiff.go
mrsdizzie Oct 18, 2020
404c83d
Update gitdiff_test.go
mrsdizzie Oct 18, 2020
ab4635c
fmt
mrsdizzie Oct 18, 2020
e6f5d12
Merge branch 'master' into diff-html-again
mrsdizzie Oct 18, 2020
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6 changes: 3 additions & 3 deletions services/gitdiff/gitdiff.go
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Original file line number Diff line number Diff line change
Expand Up @@ -181,7 +181,7 @@ var (
removedCodePrefix = []byte(`<span class="removed-code">`)
codeTagSuffix = []byte(`</span>`)
)
var addSpanRegex = regexp.MustCompile(`<span [class="[a-z]*]*$`)
var addSpanRegex = regexp.MustCompile(`<span\s*[a-z="]*$`)

func diffToHTML(fileName string, diffs []diffmatchpatch.Diff, lineType DiffLineType) template.HTML {
buf := bytes.NewBuffer(nil)
Expand Down Expand Up @@ -221,7 +221,7 @@ func diffToHTML(fileName string, diffs []diffmatchpatch.Diff, lineType DiffLineT
diffs[i].Text = strings.TrimSuffix(diffs[i].Text, addSpan)
}
buf.Write(addedCodePrefix)
buf.WriteString(getLineContent(diffs[i].Text))
buf.WriteString(diffs[i].Text)
buf.Write(codeTagSuffix)
case diffs[i].Type == diffmatchpatch.DiffDelete && lineType == DiffLineDel:
if len(addSpan) > 0 {
Expand All @@ -238,7 +238,7 @@ func diffToHTML(fileName string, diffs []diffmatchpatch.Diff, lineType DiffLineT
diffs[i].Text = strings.TrimSuffix(diffs[i].Text, addSpan)
}
buf.Write(removedCodePrefix)
buf.WriteString(getLineContent(diffs[i].Text))
buf.WriteString(diffs[i].Text)
buf.Write(codeTagSuffix)
}
}
Expand Down
9 changes: 9 additions & 0 deletions services/gitdiff/gitdiff_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -74,6 +74,15 @@ func TestDiffToHTML(t *testing.T) {
{Type: dmp.DiffInsert, Text: "lass=\"p\">,</span> <span class=\"kc\">true</span><span class=\"p\">,</span> <span class=\"nx\">attrs"},
{Type: dmp.DiffEqual, Text: "</span><span class=\"p\">,</span> <span class=\"kc\">false</span><span class=\"p\">)</span>"},
}, DiffLineAdd))

assertEqual(t, "<span class=\"k\">print</span><span class=\"added-code\"></span><span class=\"added-code\"><span class=\"p\">(</span></span><span class=\"sa\"></span><span class=\"s2\">&#34;</span><span class=\"s2\">// </span><span class=\"s2\">&#34;</span><span class=\"p\">,</span> <span class=\"n\">sys</span><span class=\"o\">.</span><span class=\"n\">argv</span><span class=\"added-code\"><span class=\"p\">)</span></span>", diffToHTML("", []dmp.Diff{
{Type: dmp.DiffEqual, Text: "<span class=\"k\">print</span>"},
{Type: dmp.DiffInsert, Text: "<span"},
{Type: dmp.DiffEqual, Text: " "},
{Type: dmp.DiffInsert, Text: "class=\"p\">(</span>"},
{Type: dmp.DiffEqual, Text: "<span class=\"sa\"></span><span class=\"s2\">&#34;</span><span class=\"s2\">// </span><span class=\"s2\">&#34;</span><span class=\"p\">,</span> <span class=\"n\">sys</span><span class=\"o\">.</span><span class=\"n\">argv</span>"},
{Type: dmp.DiffInsert, Text: "<span class=\"p\">)</span>"},
}, DiffLineAdd))
}

func TestParsePatch_singlefile(t *testing.T) {
Expand Down