use fsspec's link/islink/symlink methods (#161)

src/dvc_objects/fs/base.py

@@ -316,24 +316,28 @@ def symlink(self, from_info: AnyFSPath, to_info: AnyFSPath) -> None:
         except AttributeError:
             raise LinkError("symlink", self, from_info)
 
-    def hardlink(self, from_info: AnyFSPath, to_info: AnyFSPath) -> None:
+    def link(self, from_info: AnyFSPath, to_info: AnyFSPath) -> None:
         try:
-            return self.fs.hardlink(from_info, to_info)
+            return self.fs.link(from_info, to_info)
         except AttributeError:
-            raise LinkError("symlink", self, from_info)
+            raise LinkError("hardlink", self, from_info)
+
+    hardlink = link
 
     def reflink(self, from_info: AnyFSPath, to_info: AnyFSPath) -> None:
         try:
             return self.fs.reflink(from_info, to_info)
         except AttributeError:
-            raise LinkError("symlink", self, from_info)
+            raise LinkError("reflink", self, from_info)
 
-    def is_symlink(self, path: AnyFSPath) -> bool:
+    def islink(self, path: AnyFSPath) -> bool:
         try:
-            return self.fs.is_symlink(path)
+            return self.fs.islink(path)
         except AttributeError:
             return False
 
+    is_symlink = islink
+
     def is_hardlink(self, path: AnyFSPath) -> bool:
         try:
             return self.fs.is_hardlink(path)

src/dvc_objects/fs/local.py

@@ -136,17 +136,16 @@ def open(self, path, mode="r", encoding=None, **kwargs):
         return open(path, mode=mode, encoding=encoding)
 
     def symlink(self, path1, path2):
-        return system.symlink(path1, path2)
+        return self.fs.symlink(path1, path2)
 
-    @staticmethod
-    def is_symlink(path):
-        return system.is_symlink(path)
+    def islink(self, path):
+        return self.fs.islink(path)
 
     @staticmethod
     def is_hardlink(path):
         return system.is_hardlink(path)
 
-    def hardlink(self, path1, path2):
+    def link(self, path1, path2):
         # If there are a lot of empty files (which happens a lot in datasets),
         # and the cache type is `hardlink`, we might reach link limits and
         # will get something like: `too many links error`