Add __gt__ and mkFileStr function to File class.

fck/file.py

@@ -1,4 +1,4 @@
-from typing import Optional
+from typing import Optional, Self
 from os import path
 from . import cktype
 
@@ -7,6 +7,7 @@ class FILE:
     """
     Colored checkmark representation.
     """
+
     CHECKMARK = {
         True: "\033[92m✓\033[0m",
         False: "\033[91m❌\033[0m",
@@ -19,9 +20,15 @@ class FILE:
         # TODO: Move out expected sum calculation
         self.csum, self.esum = cktype.resolve(self.fname, esum, cstype)
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return self.fname
 
+    def __gt__(self, other: Self) -> bool:
+        return self.__repr__() > other.__repr__()
+
+    def mkFileStr(self) -> str:
+        return f"{self.csum}\t{self.fname}\n"
+
     def verify(self) -> Optional[bool]:
         if self.esum is None:
             return None