Python SFTP.exists方法代码示例

# 需要导入模块: from fabric.sftp import SFTP [as 别名]
# 或者: from fabric.sftp.SFTP import exists [as 别名]

#.........这里部分代码省略.........

    Examples::

        put('bin/project.zip', '/tmp/project.zip')
        put('*.py', 'cgi-bin/')
        put('index.html', 'index.html', mode=0755)

    .. note::
        If a file-like object such as StringIO has a ``name`` attribute, that
        will be used in Fabric's printed output instead of the default
        ``<file obj>``
    .. versionchanged:: 1.0
        Now honors the remote working directory as manipulated by
        `~fabric.context_managers.cd`, and the local working directory as
        manipulated by `~fabric.context_managers.lcd`.
    .. versionchanged:: 1.0
        Now allows file-like objects in the ``local_path`` argument.
    .. versionchanged:: 1.0
        Directories may be specified in the ``local_path`` argument and will
        trigger recursive uploads.
    .. versionchanged:: 1.0
        Return value is now an iterable of uploaded remote file paths which
        also exhibits the ``.failed`` and ``.succeeded`` attributes.
    .. versionchanged:: 1.5
        Allow a ``name`` attribute on file-like objects for log output
    .. versionchanged:: 1.7
        Added ``use_glob`` option to allow disabling of globbing.
    """
    # Handle empty local path
    local_path = local_path or os.getcwd()

    # Test whether local_path is a path or a file-like object
    local_is_path = not (hasattr(local_path, 'read') \
        and callable(local_path.read))

    ftp = SFTP(env.host_string)

    with closing(ftp) as ftp:
        home = ftp.normalize('.')

        # Empty remote path implies cwd
        remote_path = remote_path or home

        # Expand tildes
        if remote_path.startswith('~'):
            remote_path = remote_path.replace('~', home, 1)

        # Honor cd() (assumes Unix style file paths on remote end)
        if not os.path.isabs(remote_path) and env.get('cwd'):
            remote_path = env.cwd.rstrip('/') + '/' + remote_path

        if local_is_path:
            # Apply lcwd, expand tildes, etc
            local_path = os.path.expanduser(local_path)
            local_path = apply_lcwd(local_path, env)
            if use_glob:
                # Glob local path
                names = glob(local_path)
            else:
                # Check if file exists first so ValueError gets raised
                if os.path.exists(local_path):
                    names = [local_path]
                else:
                    names = []
        else:
            names = [local_path]

        # Make sure local arg exists
        if local_is_path and not names:
            err = "'%s' is not a valid local path or glob." % local_path
            raise ValueError(err)

        # Sanity check and wierd cases
        if ftp.exists(remote_path):
            if local_is_path and len(names) != 1 and not ftp.isdir(remote_path):
                raise ValueError("'%s' is not a directory" % remote_path)

        # Iterate over all given local files
        remote_paths = []
        failed_local_paths = []
        for lpath in names:
            try:
                if local_is_path and os.path.isdir(lpath):
                    p = ftp.put_dir(lpath, remote_path, use_sudo,
                        mirror_local_mode, mode)
                    remote_paths.extend(p)
                else:
                    p = ftp.put(lpath, remote_path, use_sudo, mirror_local_mode,
                        mode, local_is_path)
                    remote_paths.append(p)
            except Exception, e:
                msg = "put() encountered an exception while uploading '%s'"
                failure = lpath if local_is_path else "<StringIO>"
                failed_local_paths.append(failure)
                error(message=msg % lpath, exception=e)

        ret = _AttributeList(remote_paths)
        ret.failed = failed_local_paths
        ret.succeeded = not ret.failed
        return ret