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authormrsdizzie <info@mrsdizzie.com>2020-10-18 12:51:38 -0500
committerGitHub <noreply@github.com>2020-10-18 13:51:38 -0400
commit9fe4b7b6920c9760262ad8e77b7ed50ee8f7d464 (patch)
tree4cf80554702b99f76cb8184aac6e27178ebadfcf /services
parent5e34d3d2c06246f27ab04c5d1e6aa23048d4209e (diff)
downloadgitea-9fe4b7b6920c9760262ad8e77b7ed50ee8f7d464.tar.gz
gitea-9fe4b7b6920c9760262ad8e77b7ed50ee8f7d464.zip
Fix error in diff html rendering (#13191)
* Fix error in diff html rendering Was missing an optional whitespace check in regex. Also noticed a rare case where diff.Type == Equal would be empty and thus get a newline attached. Fixed that too. Fixes #13177 * Update services/gitdiff/gitdiff.go Co-authored-by: zeripath <art27@cantab.net> * Update gitdiff_test.go * fmt Co-authored-by: zeripath <art27@cantab.net>
Diffstat (limited to 'services')
-rw-r--r--services/gitdiff/gitdiff.go6
-rw-r--r--services/gitdiff/gitdiff_test.go9
2 files changed, 12 insertions, 3 deletions
diff --git a/services/gitdiff/gitdiff.go b/services/gitdiff/gitdiff.go
index 91105399db..3aacc830f0 100644
--- a/services/gitdiff/gitdiff.go
+++ b/services/gitdiff/gitdiff.go
@@ -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)
@@ -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 {
@@ -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)
}
}
diff --git a/services/gitdiff/gitdiff_test.go b/services/gitdiff/gitdiff_test.go
index 64cd4f1c21..bb7cb40313 100644
--- a/services/gitdiff/gitdiff_test.go
+++ b/services/gitdiff/gitdiff_test.go
@@ -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) {