GameList: Add ability to exclude/filter paths

src/frontend-common/game_list.cpp

@@ -480,7 +480,7 @@ void GameList::ScanDirectory(const char* path, bool recursive, ProgressCallback*
   {
     progress->IncrementProgressValue();
 
-    if (!IsScannableFilename(ffd.FileName) || GetEntryForPath(ffd.FileName.c_str()))
+    if (!IsScannableFilename(ffd.FileName) || IsPathExcluded(ffd.FileName) || GetEntryForPath(ffd.FileName.c_str()))
       continue;
 
     const u64 modified_time = ffd.ModificationTime.AsUnixTimestamp();
@@ -592,9 +592,15 @@ bool GameList::GetDatabaseEntryForDisc(CDImage* image, GameDatabaseEntry* entry)
   return m_database.GetEntryForDisc(image, entry);
 }
 
+bool GameList::IsPathExcluded(const std::string& path) const
+{
+  return (std::find(m_excluded_paths.begin(), m_excluded_paths.end(), path) != m_excluded_paths.end());
+}
+
 void GameList::SetSearchDirectoriesFromSettings(SettingsInterface& si)
 {
   m_search_directories.clear();
+  m_excluded_paths = si.GetStringList("GameList", "ExcludedPaths");
 
   std::vector<std::string> dirs = si.GetStringList("GameList", "Paths");
   for (std::string& dir : dirs)

src/frontend-common/game_list.h

@@ -104,6 +104,7 @@ public:
   const GameListCompatibilityEntry* GetCompatibilityEntryForCode(const std::string& code) const;
   bool GetDatabaseEntryForCode(const std::string_view& code, GameDatabaseEntry* entry);
   bool GetDatabaseEntryForDisc(CDImage* image, GameDatabaseEntry* entry);
+  bool IsPathExcluded(const std::string& path) const;
 
   void SetCacheFilename(std::string filename) { m_cache_filename = std::move(filename); }
   void SetUserCompatibilityListFilename(std::string filename)
@@ -179,6 +180,7 @@ private:
   std::unique_ptr<ByteStream> m_cache_write_stream;
 
   std::vector<DirectoryEntry> m_search_directories;
+  std::vector<std::string> m_excluded_paths;
   std::string m_cache_filename;
   std::string m_user_compatibility_list_filename;
   std::string m_user_game_settings_filename;