func checkCommitMessage()

in server.go [188:207]

• 16 lines of code
• 5 McCabe index (conditional complexity)

func checkCommitMessage(msg string) (complaint string) {
	lines := strings.Split(msg, "\n")
	if len(lines) < 2 {
		return "must have multiple lines"
	}

	if len(lines[1]) > 1 {
		return "subject and body must be separated by blank line"
	}

	if len(lines[0]) > 70 {
		return "subject must be less than 70 chars"
	}

	if strings.HasSuffix(lines[0], ".") {
		return "subject must not end in '.'"
	}

	return ""
}