add --no-images for ep3 cards.html generation

src/Main.cc

@@ -1846,14 +1846,15 @@ Action a_show_ep3_cards(
 
 Action a_generate_ep3_cards_html(
     "generate-ep3-cards-html", "\
-  generate-ep3-cards-html [--ep3-nte] [--threads=N]\n\
+  generate-ep3-cards-html [--ep3-nte] [--threads=N] [--no-images]\n\
     Generate an HTML file describing all Episode 3 card definitions from the\n\
     system/ep3 directory. If --ep3-nte is given, use the Trial Edition card\n\
-    definitions instead.\n",
+    definitions instead. If --no-images is given, omit the card images.\n",
     +[](phosg::Arguments& args) {
       size_t num_threads = args.get<size_t>("threads", 0);
 
       bool is_nte = (get_cli_version(args, Version::GC_EP3) == Version::GC_EP3_NTE);
+      bool no_images = args.get<bool>("no-images");
 
       auto s = make_shared<ServerState>(get_config_filename(args));
       s->load_patch_indexes(false);
@@ -1890,6 +1891,7 @@ Action a_generate_ep3_cards_html(
       bool show_large_column = false;
       bool show_medium_column = false;
       bool show_small_column = false;
+      if (!no_images) {
         for (const auto& filename : phosg::list_directory_sorted("system/ep3/cardtex")) {
           if ((filename[0] == 'C' || filename[0] == 'M' || filename[0] == 'L') && (filename[1] == '_')) {
             size_t card_id = stoull(filename.substr(2, 3), nullptr, 10);
@@ -1909,6 +1911,7 @@ Action a_generate_ep3_cards_html(
             }
           }
         }
+      }
 
       phosg::parallel_range<uint32_t>([&](uint32_t index, size_t) -> bool {
         auto& info = infos[index];