ntfsutils/junction.py
def create(source, link_name):
    """
    Create a junction at link_name pointing to source.
    """
    success = False
    if not os.path.isdir(source):
        raise Exception("%s is not a directory" % source)
    if os.path.exists(link_name):
        raise Exception("%s: junction link name already exists" % link_name)

    link_name = os.path.abspath(link_name)
    os.mkdir(link_name)

    # Get a handle to the directory
    hlink = CreateFile(link_name, fs.GENERIC_WRITE,
        fs.FILE_SHARE_READ | fs.FILE_SHARE_WRITE, None, fs.OPEN_EXISTING,
        fs.FILE_FLAG_OPEN_REPARSE_POINT | fs.FILE_FLAG_BACKUP_SEMANTICS,
        None)
    try:
        if hlink == fs.INVALID_HANDLE_VALUE:
            raise WinError()

        srcvolpath = unparsed_convert(source)
        (junctioninfo, infolen) = new_junction_reparse_buffer(srcvolpath)

        dummy = DWORD(0)
        res = DeviceIoControl(
            hlink,
            FSCTL_SET_REPARSE_POINT,
            byref(junctioninfo),
            infolen,
            None,
            0,
            byref(dummy),
            None)

        if res == 0:
            raise WinError()
        success = True
    finally:
        if hlink != fs.INVALID_HANDLE_VALUE:
            CloseHandle(hlink)
        if not success:
            os.rmdir(link_name)
def create(source, link_name):
    success = False
    if not os.path.isdir(source):
        raise Exception("%s is not a directory" % source)
    if os.path.exists(link_name):
        raise Exception("%s: junction link name already exists" % link_name)

    link_name = os.path.abspath(link_name)
    os.mkdir(link_name)

    # Get a handle to the directory
    hlink = CreateFile(link_name, fs.GENERIC_WRITE,
        fs.FILE_SHARE_READ | fs.FILE_SHARE_WRITE, None, fs.OPEN_EXISTING,
        fs.FILE_FLAG_OPEN_REPARSE_POINT | fs.FILE_FLAG_BACKUP_SEMANTICS,
        None)
    try:
        if hlink == fs.INVALID_HANDLE_VALUE:
            raise WinError()

        srcvolpath = unparsed_convert(source)
        (junctioninfo, infolen) = new_junction_reparse_buffer(srcvolpath)

        dummy = DWORD(0)
        res = DeviceIoControl(
            hlink,
            FSCTL_SET_REPARSE_POINT,
            byref(junctioninfo),
            infolen,
            None,
            0,
            byref(dummy),
            None)

        if res == 0:
            raise WinError()
        success = True
    finally:
        if hlink != fs.INVALID_HANDLE_VALUE:
            CloseHandle(hlink)
        if not success:
            os.rmdir(link_name)
def create ( source , link_name ) : success = False if not os . path . isdir ( source ) : raise Exception ( "%s is not a directory" % source ) if os . path . exists ( link_name ) : raise Exception ( "%s: junction link name already exists" % link_name ) link_name = os . path . abspath ( link_name ) os . mkdir ( link_name ) # Get a handle to the directory hlink = CreateFile ( link_name , fs . GENERIC_WRITE , fs . FILE_SHARE_READ | fs . FILE_SHARE_WRITE , None , fs . OPEN_EXISTING , fs . FILE_FLAG_OPEN_REPARSE_POINT | fs . FILE_FLAG_BACKUP_SEMANTICS , None ) try : if hlink == fs . INVALID_HANDLE_VALUE : raise WinError ( ) srcvolpath = unparsed_convert ( source ) ( junctioninfo , infolen ) = new_junction_reparse_buffer ( srcvolpath ) dummy = DWORD ( 0 ) res = DeviceIoControl ( hlink , FSCTL_SET_REPARSE_POINT , byref ( junctioninfo ) , infolen , None , 0 , byref ( dummy ) , None ) if res == 0 : raise WinError ( ) success = True finally : if hlink != fs . INVALID_HANDLE_VALUE : CloseHandle ( hlink ) if not success : os . rmdir ( link_name )
Create a junction at link_name pointing to source.
Create a junction at link_name pointing to source .