fusepy

import os import errno import sys from stat import S_IFDIR, S_IFREG import time from fuse import FUSE, FuseOSError, Operations # Define a simple in-memory filesystem class HelloFS(Operations): def __init__(self): self.files = { '/': { 'st_mode': (S_IFDIR | 0o755), 'st_nlink': 2, 'st_size': 0, 'st_ctime': time.time(), 'st_mtime': time.time(), 'st_atime': time.time() }, '/hello.txt': { 'st_mode': (S_IFREG | 0o444), 'st_nlink': 1, 'st_size': 13, 'st_ctime': time.time(), 'st_mtime': time.time(), 'st_atime': time.time(), 'content': b"Hello FUSE!\n" } } def getattr(self, path, fh=None): if path not in self.files: raise FuseOSError(errno.ENOENT) # fusepy expects stat-like attributes directly attrs = self.files[path] return { 'st_mode': attrs['st_mode'], 'st_nlink': attrs['st_nlink'], 'st_size': attrs['st_size'], 'st_ctime': attrs['st_ctime'], 'st_mtime': attrs['st_mtime'], 'st_atime': attrs['st_atime'], } def readdir(self, path, fh): dirents = ['.', '..'] if path == '/': dirents.extend([f.lstrip('/') for f in self.files if f != '/']) for r in dirents: yield r def open(self, path, flags): if path not in self.files or 'content' not in self.files[path]: raise FuseOSError(errno.ENOENT) return 0 # FUSE expects a file handle, 0 is often used for in-memory FS def read(self, path, size, offset, fh): if path not in self.files or 'content' not in self.files[path]: raise FuseOSError(errno.ENOENT) content = self.files[path]['content'] return content[offset:offset + size] if __name__ == '__main__': # !!! IMPORTANT: You MUST have FUSE development libraries installed on your OS !!! # For Debian/Ubuntu: sudo apt-get install libfuse-dev # For macOS with Homebrew: brew install fuse-t # The mount point can be specified as a command-line argument. # Example usage: python your_script.py /tmp/myfuse # To unmount: `fusermount -u /tmp/myfuse` (Linux) or `umount /tmp/myfuse` (macOS/BSD) mount_point = sys.argv[1] if len(sys.argv) > 1 else '/tmp/myfuse_example' if not os.path.exists(mount_point): os.makedirs(mount_point) print(f"Mounting filesystem at {mount_point}. Press Ctrl+C to unmount.") print(f"To interact: ls {mount_point}, cat {mount_point}/hello.txt") # The FUSE daemon starts here. # foreground=True keeps the process in the foreground, useful for debugging. # ro=True makes the filesystem read-only. FUSE(HelloFS(), mount_point, foreground=True, ro=True)