DirFS: Handle paths with no leading / (fsspec#1638)

metadaddy · Jun 27, 2024 · d187403 · d187403
1 parent 262f664
commit d187403
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/fsspec/implementations/dirfs.py b/fsspec/implementations/dirfs.py
@@ -66,7 +66,14 @@ def _relpath(self, path):
                 return path
             if path == self.path:
                 return ""
-            prefix = self.path + self.fs.sep
+            # S3FileSystem returns paths that do not start with a '/', so we
+            # need to remove the leading '/' from self.path if there is one there
+            # but not on the incoming path
+            if not path.startswith(self.fs.sep) and self.path.startswith(self.fs.sep):
+                prefix = self.path[1:] + self.fs.sep
+            else:
+                prefix = self.path + self.fs.sep
+            print(f'### path={path}, prefix={prefix}')
             assert path.startswith(prefix)
             return path[len(prefix) :]
         return [self._relpath(_path) for _path in path]