Fix crash in case of unreachable symlinks

Fixes #2525

Co-authored-by: Silvio Knizek <7925665+killermoehre@users.noreply.github.com>

CHANGELOG.md

@@ -18,10 +18,11 @@ Note: Can be used with `oxsecurity/megalinter@beta` in your GitHub Action mega-l
     [#2455](https://github.com/oxsecurity/megalinter/pull/2455).
 
 - Core
+  - Upgrade base Docker image to python:3.11.3-alpine3.17
   - Fix issue preventing plugins to work with flavors
   - Upgrade create-pull-request and create-or-update-comment GitHub Actions
   - Increase auto-update-linters GitHub Action timeout
-  - Upgrade base Docker image to python:3.11.3-alpine3.17
+  - Fix crash in case of unreachable symlinks
 
 - Documentation
 

megalinter/utils.py

@@ -229,10 +229,14 @@ def check_activation_rules(activation_rules, _linter):
 def file_contains(file_name: str, regex_object: Optional[Pattern[str]]) -> bool:
     if not regex_object:
         return True
-    with open(file_name, "r", encoding="utf-8", errors="ignore") as f:
-        content = f.read()
-    found_pattern = regex_object.search(content) is not None
-    return found_pattern
+    try:
+        with open(file_name, "r", encoding="utf-8", errors="ignore") as f:
+            content = f.read()
+        found_pattern = regex_object.search(content) is not None
+        return found_pattern
+    except Exception as e:
+        logging.warning(f"Unable to check content of file {file_name}: " + str(e))
+        return False
 
 
 def file_is_generated(file_name: str) -> bool: