fix: _stat_mode can follow symlinks with relative path (#113)

firecrest/path.py

@@ -9,7 +9,7 @@
 from pathlib import PurePosixPath
 import stat
 import tempfile
-from typing import Callable, Iterator
+from typing import Callable, Iterator, List
 
 from firecrest import Firecrest, ClientCredentialsAuth
 from firecrest.BasicClient import logger as FcLogger
@@ -310,6 +310,18 @@ def _lstat_mode(self) -> int:
  self._cache.lst_mode = item._cache.lst_mode
  return item._cache.lst_mode
  raise FileNotFoundError(self)
+
+ def resolve(self) -> Self:
+ """Resolve a path, removing '..' and '.' components."""
+ parts: List[str] = []
+ for part in self.parts:
+ if part == '..':
+ if parts:
+ parts.pop()
+ elif part != '.':
+ parts.append(part)
+
+ return self._new_path(PurePosixPath(*parts))
 
  def _stat_mode(self) -> int:
  """Return the st_mode of the path, following symlinks."""
@@ -337,7 +349,11 @@ def _stat_mode(self) -> int:
  if stat.S_ISLNK(mode):
  if not item._cache.link_target:
  raise FileNotFoundError(f"Symlink has no target path: {self}")
- path = self._new_path(PurePosixPath(item._cache.link_target))
+ pureposixpath = PurePosixPath(item._cache.link_target) 
+ if not pureposixpath.is_absolute():
+ path = path.parent.joinpath(pureposixpath).resolve()
+ else:
+ path = self._new_path(pureposixpath)
  followed_links += 1
  break
  else:
@@ -470,6 +486,10 @@ def iterdir(self, hidden=True, recursive=False) -> Iterator[Self]:
  ),
  )
 
+ def relpath(self, start: str | PurePosixPath) -> str:
+ """Return a relative version of this path."""
+ return self._path.relative_to(start).as_posix()
+
  # operations that modify a file
 
  def chmod(self, mode: int) -> None: