public GitWrapper(ExecOperations execOperations) {
        this.execOperations = execOperations;
    }

    /**
     * @return a mapping from remote names to remote URLs.
     */
    public Map<String, String> listRemotes() {
        return runCommand("git", "remote", "-v").lines()
            .filter(l -> l.contains("(fetch)"))
            .map(line -> line.split("\\s+"))

        LOGGER.info("Finding upstream git remote");
        // We need to ensure the tags are up-to-date. Find the correct remote to use
        String upstream = gitWrapper.listRemotes()
            .entrySet()
            .stream()
            .filter(entry -> entry.getValue().contains("elastic/elasticsearch"))
            .findFirst()
            .map(Map.Entry::getKey)