rework #12230 to not have duplicate code

    return

def run_git(dir, name, command, desc=None, errdesc=None, custom_env=None, live: bool = default_command_live, autofix=True):

    try:

        return run(f'"{git}" -C "{dir}" {command}', desc=desc, errdesc=errdesc, custom_env=custom_env, live=live)

    except RuntimeError:

        pass

    if not autofix:

        return None

    print(f"{errdesc}, attempting autofix...")

    git_fix_workspace(dir, name)

    return run(f'"{git}" -C "{dir}" {command}', desc=desc, errdesc=errdesc, custom_env=custom_env, live=live)

def git_clone(url, dir, name, commithash=None):

    # TODO clone into temporary dir and move if successful

        if commithash is None:

            return

        try:

            current_hash = subprocess.check_output([git, "-C", dir, "rev-parse", "HEAD"], shell=False, encoding='utf8').strip()

            if current_hash == commithash:

                return

        except Exception:

            print(f"Unable to determine {name}'s hash, attempting autofix...")

            git_fix_workspace(dir, name)

            current_hash = subprocess.check_output([git, "-C", dir, "rev-parse", "HEAD"], shell=False, encoding='utf8').strip()

        current_hash = run_git(dir, name, 'rev-parse HEAD', None, f"Couldn't determine {name}'s hash: {commithash}", live=False).strip()

        if current_hash == commithash:

            return

        run(f'"{git}" -C "{dir}" fetch', f"Fetching updates for {name}...", f"Couldn't fetch {name}")

        run_git('fetch', f"Fetching updates for {name}...", f"Couldn't fetch {name}")

        try:

            run(f'"{git}" -C "{dir}" checkout {commithash}', f"Checking out commit for {name} with hash: {commithash}...", f"Couldn't checkout commit {commithash} for {name}", live=True)

        except RuntimeError:

            print(f"Unable to checkout {name} with hash {commithash}, attempting autofix...")

            git_fix_workspace(dir, name)

            run(f'"{git}" -C "{dir}" checkout {commithash}', f"Checking out commit for {name} with hash: {commithash}...", f"Couldn't checkout commit {commithash} for {name}", live=True)

        run_git('checkout', f"Checking out commit for {name} with hash: {commithash}...", f"Couldn't checkout commit {commithash} for {name}", live=True)

        return