mirror of
https://github.com/libfuse/libfuse.git
synced 2024-11-30 15:44:18 +08:00
61 lines
2.4 KiB
Plaintext
61 lines
2.4 KiB
Plaintext
General Information
|
|
===================
|
|
|
|
This is a Python[1] interface to FUSE[2].
|
|
|
|
FUSE (Filesystem in USErspace) is a simple interface for userspace
|
|
programs to export a virtual filesystem to the linux kernel. FUSE
|
|
also aims to provide a secure method for non privileged users to
|
|
create and mount their own filesystem implementations.
|
|
|
|
When run from the commandline, "fuse.py" simply reexports the root
|
|
filesystem within the mount point as example/fusexmp does in the main
|
|
FUSE distribution. It also offers a class, fuse.Fuse, which can be
|
|
subclassed to create a filesystem. fuse.Xmp is the example filesystem
|
|
implementation.
|
|
|
|
In your subclass of fuse, add attributes with the expected names
|
|
("getattr", "readlink", etc) and call signatures (refer to fuse.Xmp)
|
|
then call main(). Make it runnable as a #! script, and mount with
|
|
fusermount <mount point> <script name>
|
|
for some reason,
|
|
fusermount <mount point> python <script name>
|
|
does not seem to work. (why?)
|
|
|
|
Limitations
|
|
===========
|
|
|
|
This is minimally tested, though I think I have exercised each function.
|
|
There's no documentation, docstrings, or tests.
|
|
|
|
Python's lstat() does not return some fields which must be filled in
|
|
(st_blksize, st_blocks, st_ino), and _fusemodule assumes that the return
|
|
value from the lstat() method is identical to Python's lstat(). This
|
|
limitation should be lifted, and some standard order chosen for these
|
|
three values. For now, though, default values are chosen and du returns a
|
|
number similar to the "real" one.
|
|
|
|
The Python Global Interpreter Lock is not handled, so using
|
|
fuse.MULTITHREAD will not work. Modifying the PROLOGUE and EPILOGUE
|
|
functions may take care of this. For now, just run without
|
|
fuse.MULTITHREAD in flags.
|
|
|
|
Author
|
|
======
|
|
|
|
I'm Jeff Epler <jepler@unpythonic.dhs.org>. I've been dabbling in
|
|
Python for nearly 7 years now, and interested (despite the lack of a
|
|
real practical use) in userspace filesystems ever since I couldn't get
|
|
userfs to compile way back in '93 or so. FUSE is cool, but i'm still
|
|
not sure what it's good for in practical terms.
|
|
|
|
I don't know how high a level of interest I'll maintain in this project,
|
|
so if you want to do something with it feel free to do so. Like FUSE,
|
|
this software is distributed under the terms of the GNU General Public
|
|
License, Version 2. Future versions, if any, will be available at [3].
|
|
|
|
|
|
[1] http://www.python.org
|
|
[2] http://sourceforge.net/projects/avf/
|
|
[3] http://unpythonic.dhs.org/~jepler/fuse/
|