Get the absolute path without resolving the symlinks

Fix #976

news/976.bugfix.md

+Don't follow symlinks for the paths in the requirement strings.

pdm/models/requirements.py

@@ -309,9 +309,9 @@ class FileRequirement(Requirement):
     def _parse_url(self) -> None:
         if not self.url:
             if self.path:
-                self.url = path_to_url(self.path.resolve().as_posix())
+                self.url = path_to_url(self.path.absolute().as_posix())
                 if not self.path.is_absolute():
-                    project_root = Path(".").resolve().as_posix().lstrip("/")
+                    project_root = Path(".").absolute().as_posix().lstrip("/")
                     self.url = self.url.replace(project_root, "${PROJECT_ROOT}")
         else:
             try: