Interface to `git-clone(1)`_

    cwd
        Location of git clone

        .. versionchanged:: 2015.8.0
            If ``name`` is passed, then the clone will be made *within* this
            directory.

    url
        The URL of the repository to be cloned

        .. versionchanged:: 2015.8.0
            Argument renamed from ``repository`` to ``url``

    name
        Optional alternate name for the top-level directory to be created by
        the clone

        .. versionadded:: 2015.8.0

    opts
        Any additional options to add to the command line, in a single string

    git_opts
        Any additional options to add to git command itself (not the ``clone``
        subcommand), in a single string. This is useful for passing ``-c`` to
        run git with temporary changes to the git configuration.

        .. versionadded:: 2017.7.0

        .. note::
            This is only supported in git 1.7.2 and newer.

    user
        User under which to run the git command. By default, the command is run
        by the user under which the minion is running.

    password
        Windows only. Required when specifying ``user``. This parameter will be
        ignored on non-Windows platforms.

      .. versionadded:: 2016.3.4

    identity
        Path to a private key to use for ssh URLs

        .. warning::

            Unless Salt is invoked from the minion using ``salt-call``, the
            key(s) must be passphraseless. For greater security with
            passphraseless private keys, see the `sshd(8)`_ manpage for
            information on securing the keypair from the remote side in the
            ``authorized_keys`` file.

            .. _`sshd(8)`: http://www.man7.org/linux/man-pages/man8/sshd.8.html#AUTHORIZED_KEYS_FILE_FORMAT

        .. versionchanged:: 2015.8.7

            Salt will no longer attempt to use passphrase-protected keys unless
            invoked from the minion using ``salt-call``, to prevent blocking
            waiting for user input.

        Key can also be specified as a SaltStack file server URL, eg. salt://location/identity_file

        .. versionchanged:: 2016.3.0

    https_user
        Set HTTP Basic Auth username. Only accepted for HTTPS URLs.

        .. versionadded:: 20515.5.0

    https_pass
        Set HTTP Basic Auth password. Only accepted for HTTPS URLs.

        .. versionadded:: 2015.5.0

    ignore_retcode : False
        If ``True``, do not log an error to the minion log if the git command
        returns a nonzero exit status.

        .. versionadded:: 2015.8.0

    saltenv
        The default salt environment to pull sls files from

        .. versionadded:: 2016.3.1

    output_encoding
        Use this option to specify which encoding to use to decode the output
        from any git commands which are run. This should not be needed in most
        cases.

        .. note::
            This should only be needed if the files in the repository were
            created with filenames using an encoding other than UTF-8 to handle
            Unicode characters.

        .. versionadded:: 2018.3.1

    .. _`git-clone(1)`: http://git-scm.com/docs/git-clone

    CLI Example:

    .. code-block:: bash

        salt myminion git.clone /path/to/repo_parent_dir git://github.com/saltstack/salt.git

def clone(cwd,
          url=None,  # Remove default value once 'repository' arg is removed
          name=None,
          opts='',
          git_opts='',
          user=None,
          password=None,
          identity=None,
          https_user=None,
          https_pass=None,
          ignore_retcode=False,
          saltenv='base',
          output_encoding=None):
    '''
    Interface to `git-clone(1)`_

    cwd
        Location of git clone

        .. versionchanged:: 2015.8.0
            If ``name`` is passed, then the clone will be made *within* this
            directory.

    url
        The URL of the repository to be cloned

        .. versionchanged:: 2015.8.0
            Argument renamed from ``repository`` to ``url``

    name
        Optional alternate name for the top-level directory to be created by
        the clone

        .. versionadded:: 2015.8.0

    opts
        Any additional options to add to the command line, in a single string

    git_opts
        Any additional options to add to git command itself (not the ``clone``
        subcommand), in a single string. This is useful for passing ``-c`` to
        run git with temporary changes to the git configuration.

        .. versionadded:: 2017.7.0

        .. note::
            This is only supported in git 1.7.2 and newer.

    user
        User under which to run the git command. By default, the command is run
        by the user under which the minion is running.

    password
        Windows only. Required when specifying ``user``. This parameter will be
        ignored on non-Windows platforms.

      .. versionadded:: 2016.3.4

    identity
        Path to a private key to use for ssh URLs

        .. warning::

            Unless Salt is invoked from the minion using ``salt-call``, the
            key(s) must be passphraseless. For greater security with
            passphraseless private keys, see the `sshd(8)`_ manpage for
            information on securing the keypair from the remote side in the
            ``authorized_keys`` file.

            .. _`sshd(8)`: http://www.man7.org/linux/man-pages/man8/sshd.8.html#AUTHORIZED_KEYS_FILE_FORMAT

        .. versionchanged:: 2015.8.7

            Salt will no longer attempt to use passphrase-protected keys unless
            invoked from the minion using ``salt-call``, to prevent blocking
            waiting for user input.

        Key can also be specified as a SaltStack file server URL, eg. salt://location/identity_file

        .. versionchanged:: 2016.3.0

    https_user
        Set HTTP Basic Auth username. Only accepted for HTTPS URLs.

        .. versionadded:: 20515.5.0

    https_pass
        Set HTTP Basic Auth password. Only accepted for HTTPS URLs.

        .. versionadded:: 2015.5.0

    ignore_retcode : False
        If ``True``, do not log an error to the minion log if the git command
        returns a nonzero exit status.

        .. versionadded:: 2015.8.0

    saltenv
        The default salt environment to pull sls files from

        .. versionadded:: 2016.3.1

    output_encoding
        Use this option to specify which encoding to use to decode the output
        from any git commands which are run. This should not be needed in most
        cases.

        .. note::
            This should only be needed if the files in the repository were
            created with filenames using an encoding other than UTF-8 to handle
            Unicode characters.

        .. versionadded:: 2018.3.1

    .. _`git-clone(1)`: http://git-scm.com/docs/git-clone

    CLI Example:

    .. code-block:: bash

        salt myminion git.clone /path/to/repo_parent_dir git://github.com/saltstack/salt.git
    '''
    cwd = _expand_path(cwd, user)

    if not url:
        raise SaltInvocationError('Missing \'url\' argument')

    try:
        url = salt.utils.url.add_http_basic_auth(url,
                                                 https_user,
                                                 https_pass,
                                                 https_only=True)
    except ValueError as exc:
        raise SaltInvocationError(exc.__str__())

    command = ['git'] + _format_git_opts(git_opts)
    command.append('clone')
    command.extend(_format_opts(opts))
    command.extend(['--', url])
    if name is not None:
        command.append(name)
        if not os.path.exists(cwd):
            os.makedirs(cwd)
        clone_cwd = cwd
    else:
        command.append(cwd)
        # Use '/tmp' instead of $HOME (/root for root user) to work around
        # upstream git bug. See the following comment on the Salt bug tracker
        # for more info:
        # https://github.com/saltstack/salt/issues/15519#issuecomment-128531310
        # On Windows, just fall back to None (runs git clone command using the
        # home directory as the cwd).
        clone_cwd = '/tmp' if not salt.utils.platform.is_windows() else None
    _git_run(command,
             cwd=clone_cwd,
             user=user,
             password=password,
             identity=identity,
             ignore_retcode=ignore_retcode,
             saltenv=saltenv,
             output_encoding=output_encoding)
    return True