Backport of go-gitea#17018: Prevent NPE in CSV diff rendering when co…

…lumn removed Fixes go-gitea#16837 if a column is deleted.
richmahn · Oct 20, 2021 · 3c97c48 · 3c97c48
1 parent eb748ff
commit 3c97c48
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Showing 7 changed files with 351 additions and 136 deletions.
diff --git a/modules/csv/csv.go b/modules/csv/csv.go
@@ -32,6 +32,9 @@ func CreateReaderAndGuessDelimiter(rd io.Reader) (*stdcsv.Reader, error) {
 	var data = make([]byte, 1e4)
 	size, err := rd.Read(data)
 	if err != nil {
+		if err == io.EOF {
+			return CreateReader(bytes.NewReader([]byte{}), rune(',')), nil
+		}
 		return nil, err
 	}