From 1becd0bae6573908eaad00344f69f4010fb67831 Mon Sep 17 00:00:00 2001
From: sjp761 <171447425+sjp761@users.noreply.github.com>
Date: Sat, 8 Aug 2026 19:45:18 -0500
Subject: [PATCH] File Exclusion

---
 legendary/core.py                  | 11 +++++++++++
 legendary/downloader/mp/manager.py | 19 +++++++++++++++++--
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/legendary/core.py b/legendary/core.py
index 6e27a52..9770915 100644
--- a/legendary/core.py
+++ b/legendary/core.py
@@ -1654,6 +1654,16 @@ class LegendaryCore:
         if not max_workers:
             max_workers = self.lgd.config.getint('Legendary', 'max_workers', fallback=0)
 
+
+        exclude_file_path = os.path.join(self.lgd.path, "exclude", game.app_name)
+        self.log.info(f'Using exclude file if it exists: {exclude_file_path}')
+
+        try:
+            with open(exclude_file_path, 'r') as f:
+                file_exclude_configured = [line.strip().replace('/', os.sep).replace('\\', os.sep).lower() for line in f if line.strip()]
+        except Exception:
+            file_exclude_configured = []
+
         dlm = DLManager(install_path, base_url, manifest_secrets, resume_file=resume_file, status_q=status_q,
                         max_shared_memory=max_shm * 1024 * 1024, max_workers=max_workers,
                         dl_timeout=dl_timeout, bind_ip=bind_ip, case_insensitive=platform.startswith('Win'))
@@ -1661,6 +1671,7 @@ class LegendaryCore:
                                   patch=not disable_patching, resume=not force,
                                   file_prefix_filter=file_prefix_filter,
                                   file_exclude_filter=file_exclude_filter,
+                                  file_exclude_configured=file_exclude_configured,
                                   file_install_tag=file_install_tag,
                                   processing_optimization=process_opt)
 
diff --git a/legendary/downloader/mp/manager.py b/legendary/downloader/mp/manager.py
index c44fb79..92963d8 100644
--- a/legendary/downloader/mp/manager.py
+++ b/legendary/downloader/mp/manager.py
@@ -3,6 +3,7 @@
 
 import logging
 import os
+from pathlib import PurePath
 import time
 from collections import Counter, defaultdict, deque
 from logging.handlers import QueueHandler
@@ -12,7 +13,6 @@ from multiprocessing.shared_memory import SharedMemory
 from queue import Empty
 from sys import exit
 from threading import Condition, Thread
-
 from legendary.downloader.mp.workers import DLWorker, FileWorker
 from legendary.models.downloading import (
     AnalysisResult,
@@ -90,10 +90,16 @@ class DLManager(Process):
         self.num_processed_since_last = 0
         self.num_tasks_processed_since_last = 0
 
+    def matches(file, excludelist):
+            for pattern in excludelist:
+                if PurePath(file).full_match(pattern):
+                    return True
+            return False
+    
     def run_analysis(self, manifest: Manifest, old_manifest: Manifest = None,
                      patch=True, resume=True, file_prefix_filter=None,
                      file_exclude_filter=None, file_install_tag=None,
-                     processing_optimization=False) -> AnalysisResult:
+                     file_exclude_configured=None, processing_optimization=False) -> AnalysisResult:
         """
         Run analysis on manifest and old manifest (if not None) and return a result
         with a summary resources required in order to install the provided manifest.
@@ -105,6 +111,7 @@ class DLManager(Process):
         :param file_prefix_filter: Only download files that start with this prefix
         :param file_exclude_filter: Exclude files with this prefix from download
         :param file_install_tag: Only install files with the specified tag
+        :param file_exclude_configured: Exclude files based on a file listing globs
         :param processing_optimization: Attempt to optimize processing order and RAM usage
         :return: AnalysisResult
         """
@@ -210,6 +217,14 @@ class DLManager(Process):
             mc.changed -= files_to_skip
             mc.unchanged |= files_to_skip
 
+        if file_exclude_configured:
+            if isinstance(file_exclude_configured, str):
+                file_exclude_configured = [file_exclude_configured]
+            files_to_skip = set(i.filename for i in manifest.file_manifest_list.elements if DLManager.matches(i.filename.lower().replace('/', os.sep).replace('\\', os.sep), file_exclude_configured))
+            mc.added -= files_to_skip
+            mc.changed -= files_to_skip
+            mc.unchanged |= files_to_skip
+
         if file_prefix_filter or file_exclude_filter or file_install_tag:
             self.log.info(f'Remaining files after filtering: {len(mc.added) + len(mc.changed)}')
             # correct install size after filtering