Function parseLogOutput

cmd/errtrace/main_test.go:894–935

(file, s string)

}

func parseLogOutput(file, s string) ([]logLine, error) {
	var logs []logLine
	for _, line := range strings.Split(s, "\n") {
		if line == "" {
			continue
		}

		// Drop the path so we can determinstically split on ":" (which is a valid character in Windows paths).
		line = strings.TrimPrefix(line, file)
		parts := strings.SplitN(line, ":", 4)
		if len(parts) != 4 {
			return nil, errtrace.Wrap(fmt.Errorf("bad log line: %q", line))
		}

		var msg string
		if len(parts) == 4 {
			if _, err := strconv.Atoi(parts[2]); err == nil {
				// file:line:column:msg
				msg = parts[3]
			}
		}
		if msg == "" && len(parts) >= 2 {
			// file:line:msg
			msg = strings.Join(parts[2:], ":")
		}
		if msg == "" {
			return nil, errtrace.Wrap(fmt.Errorf("bad log line: %q", line))
		}

		lineNum, err := strconv.Atoi(parts[1])
		if err != nil {
			return nil, errtrace.Wrap(fmt.Errorf("bad log line: %q", line))
		}

		logs = append(logs, logLine{
			Line: lineNum,
			Msg:  msg,
		})
	}

	return logs, nil
}

func chdir(t testing.TB, dir string) (restore func()) {
	t.Helper()