implement "force-scan" command

Formatting improvements

src/cmdline/RootCommands.cpp

@@ -23,6 +23,7 @@ extern "C"
     #include "../config.h"
     #include "../OpenRCT2.h"
     #include "../platform/crash.h"
+    #include "../object/ObjectRepository.h"
 }
 
 #include "../core/Console.hpp"
@@ -66,6 +67,7 @@ static utf8 * _userDataPath    = nullptr;
 static utf8 * _openrctDataPath = nullptr;
 static utf8 * _rct2DataPath    = nullptr;
 static bool   _silentBreakpad  = false;
+static bool   _forceScan       = false;
 
 static const CommandLineOptionDefinition StandardOptions[]
 {
@@ -89,6 +91,7 @@ static const CommandLineOptionDefinition StandardOptions[]
 #ifdef USE_BREAKPAD
     { CMDLINE_TYPE_SWITCH,  &_silentBreakpad,  NAC, "silent-breakpad",   "make breakpad crash reporting silent"                       },
 #endif // USE_BREAKPAD
+    { CMDLINE_TYPE_SWITCH,  &_forceScan,       'f', "force-scan",        "forces scanning of object repository" },
     OptionTableEnd
 };
 
@@ -193,6 +196,7 @@ exitcode_t CommandLine::HandleCommandDefault()
 
     gOpenRCT2Headless = _headless;
     gOpenRCT2SilentBreakpad = _silentBreakpad || _headless;
+    object_repository_force_scan_flag = _forceScan;
 
     if (_userDataPath != nullptr)
     {

src/object/ObjectRepository.cpp

@@ -300,6 +300,16 @@ private:
     bool Load()
     {
         const std::string &path = _env->GetFilePath(PATHID::CACHE_OBJECTS);
+        
+        // Override if force-flag is set.
+        if (object_repository_force_scan_flag)
+        {
+            Console::WriteLine("Forcing object repository scan.");
+            // This should only be called once, so set back to false.
+            object_repository_force_scan_flag = false;
+            return false;
+        }
+
         try
         {
             auto fs = FileStream(path, FILE_MODE_OPEN);
@@ -649,6 +659,8 @@ static int GetObjectEntryIndex(uint8 objectType, uint8 entryIndex)
 
 extern "C"
 {
+    bool object_repository_force_scan_flag = false;
+
     rct_object_entry * object_list_find(rct_object_entry * entry)
     {
         IObjectRepository * objRepo = GetObjectRepository();

src/object/ObjectRepository.h

@@ -88,6 +88,8 @@ extern "C"
 {
 #endif
 
+extern bool                     object_repository_force_scan_flag;
+
 size_t                          object_repository_get_items_count();
 const ObjectRepositoryItem *    object_repository_get_items();
 const ObjectRepositoryItem *    object_repository_find_object_by_entry(const rct_object_entry * entry);