go.mod: vendor golangci-lint

1 files changed, 37 insertions, 0 deletions

diff --git a/vendor/github.com/sourcegraph/go-diff/diff/reader_util.go b/vendor/github.com/sourcegraph/go-diff/diff/reader_util.go
new file mode 100644
index 000000000..395fb7baf
--- /dev/null
+++ b/vendor/github.com/sourcegraph/go-diff/diff/reader_util.go
@@ -0,0 +1,37 @@
+package diff
+
+import (
+	"bufio"
+	"io"
+)
+
+// readLine is a helper that mimics the functionality of calling bufio.Scanner.Scan() and
+// bufio.Scanner.Bytes(), but without the token size limitation. It will read and return
+// the next line in the Reader with the trailing newline stripped. It will return an
+// io.EOF error when there is nothing left to read (at the start of the function call). It
+// will return any other errors it receives from the underlying call to ReadBytes.
+func readLine(r *bufio.Reader) ([]byte, error) {
+	line_, err := r.ReadBytes('\n')
+	if err == io.EOF {
+		if len(line_) == 0 {
+			return nil, io.EOF
+		}
+
+		// ReadBytes returned io.EOF, because it didn't find another newline, but there is
+		// still the remainder of the file to return as a line.
+		line := line_
+		return line, nil
+	} else if err != nil {
+		return nil, err
+	}
+	line := line_[0 : len(line_)-1]
+	return dropCR(line), nil
+}
+
+// dropCR drops a terminal \r from the data.
+func dropCR(data []byte) []byte {
+	if len(data) > 0 && data[len(data)-1] == '\r' {
+		return data[0 : len(data)-1]
+	}
+	return data
+}