Check for duplicate patterns

Author: insolor

search_offsets/patterns.py

@@ -3,6 +3,7 @@
 from pathlib import Path
 from typing import NamedTuple
 
+from loguru import logger
 from more_itertools import chunked
 
 
@@ -20,6 +21,14 @@ def __str__(self) -> str:
     def __repr__(self) -> str:
         return f"{self.__class__.__name__}(name={self.name!r}, pattern={self.pattern!r})"
 
+    def __hash__(self) -> int:
+        return hash(tuple(self.pattern))
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, Pattern):
+            return False
+        return self.pattern == other.pattern
+
 
 def hex_to_bytes(s: str) -> bytes:
     """
@@ -35,6 +44,22 @@ def convert_to_pattern(s: list[str]) -> list[int | None]:
     return [None if item == "??" else int(item, 16) for item in s]
 
 
+def check_duplicates(patterns: list[Pattern]) -> None:
+    """
+    Check for duplicate patterns.
+    """
+    duplicates = defaultdict(list)
+
+    for pattern in patterns:
+        duplicates[pattern].append(pattern.name)
+
+    print(list(duplicates.values()))
+
+    for names in duplicates.values():
+        if len(names) > 1:
+            logger.warning(f"Duplicate patterns: {names}")
+
+
 def load_patterns(pattern_path: Path) -> list[Pattern]:
     """
     Load patterns to a list from ffsess file.
@@ -52,6 +77,8 @@ def load_patterns(pattern_path: Path) -> list[Pattern]:
 
             patterns.append(pattern_object)
 
+    check_duplicates(patterns)
+
     return patterns