toy ls implementation for virtualfs

rose/virtualfs/__init__.py

@@ -1,3 +1,6 @@
+import errno
+import os
+import stat
 import subprocess
 
 import fuse
@@ -8,7 +11,25 @@
 
 
 class VirtualFS(fuse.Fuse):  # type: ignore
-    pass
+    def getattr(self, path: str) -> fuse.Stat | int:
+        if path[1:] == "some_dir" or path in ["..", "/"]:
+            st_mode = stat.S_IFDIR | 0o755
+        elif path[1:] == "some_file":
+            st_mode = stat.S_IFREG | 0o644
+        else:
+            return -errno.ENOENT
+
+        return fuse.Stat(
+            st_nlink=1,
+            st_mode=st_mode,
+            st_uid=os.getuid(),
+            st_gid=os.getgid(),
+        )
+
+    def readdir(self, path: str, _):
+        if path == "/":
+            for name in [".", "..", "some_file", "some_dir"]:
+                yield fuse.Direntry(name)
 
 
 def mount_virtualfs(c: Config) -> None: