Allow saving new config files directly from RGUI.

The file name is inferred to avoid typing.

frontend/menu/menu_common.c

@@ -944,3 +944,81 @@ bool menu_replace_config(const char *path)
    return true;
 }
 
+// Save a new config to a file. Filename is based on heuristics to avoid typing.
+bool menu_save_new_config(void)
+{
+   char config_dir[PATH_MAX];
+   *config_dir = '\0';
+
+   if (*g_settings.rgui_config_directory)
+      strlcpy(config_dir, g_settings.rgui_config_directory, sizeof(config_dir));
+   else if (*g_extern.config_path) // Fallback
+      fill_pathname_basedir(config_dir, g_extern.config_path, sizeof(config_dir));
+   else
+   {
+      const char *msg = "Config directory not set. Cannot save new config.";
+      msg_queue_clear(g_extern.msg_queue);
+      msg_queue_push(g_extern.msg_queue, msg, 1, 180);
+      RARCH_ERR("%s\n", msg);
+      return false;
+   }
+
+   bool found_path = false;
+   char config_name[PATH_MAX];
+   char config_path[PATH_MAX];
+   if (*g_settings.libretro && !path_is_directory(g_settings.libretro) && path_file_exists(g_settings.libretro)) // Infer file name based on libretro core.
+   {
+      // In case of collision, find an alternative name.
+      for (unsigned i = 0; i < 16; i++)
+      {
+         fill_pathname_base(config_name, g_settings.libretro, sizeof(config_name));
+         path_remove_extension(config_name);
+         fill_pathname_join(config_path, config_dir, config_name, sizeof(config_path));
+
+         char tmp[64];
+         *tmp = '\0';
+         if (i)
+            snprintf(tmp, sizeof(tmp), "-%u.cfg", i);
+         else
+            strlcpy(tmp, ".cfg", sizeof(tmp));
+
+         strlcat(config_path, tmp, sizeof(config_path));
+
+         if (!path_file_exists(config_path))
+         {
+            found_path = true;
+            break;
+         }
+      }
+   }
+
+   // Fallback to system time ...
+   if (!found_path)
+   {
+      RARCH_WARN("Cannot infer new config path. Use current time.\n");
+      fill_dated_filename(config_name, "cfg", sizeof(config_name));
+      fill_pathname_join(config_path, config_dir, config_name, sizeof(config_path));
+   }
+
+   char msg[512];
+   bool ret;
+   if (config_save_file(config_path))
+   {
+      strlcpy(g_extern.config_path, config_path, sizeof(g_extern.config_path));
+      snprintf(msg, sizeof(msg), "Saved new config to \"%s\".", config_path);
+      RARCH_LOG("%s\n", msg);
+      ret = true;
+   }
+   else
+   {
+      snprintf(msg, sizeof(msg), "Failed saving config to \"%s\".", config_path);
+      RARCH_ERR("%s\n", msg);
+      ret = false;
+   }
+
+   msg_queue_clear(g_extern.msg_queue);
+   msg_queue_push(g_extern.msg_queue, msg, 1, 180);
+   return ret;
+}
+
+

frontend/menu/menu_common.h

@@ -130,6 +130,7 @@ typedef enum
    RGUI_SETTINGS_OPEN_HISTORY,
    RGUI_SETTINGS_CORE,
    RGUI_SETTINGS_CONFIG,
+   RGUI_SETTINGS_SAVE_CONFIG,
    RGUI_SETTINGS_CORE_OPTIONS,
    RGUI_SETTINGS_AUDIO_OPTIONS,
    RGUI_SETTINGS_INPUT_OPTIONS,
@@ -298,6 +299,8 @@ void menu_rom_history_push_current(void);
 
 bool menu_replace_config(const char *path);
 
+bool menu_save_new_config(void);
+
 #ifdef __cplusplus
 }
 #endif

frontend/menu/rgui.c

@@ -761,6 +761,7 @@ static void render_text(rgui_handle_t *rgui)
             case RGUI_SETTINGS_VIDEO_OPTIONS:
             case RGUI_SETTINGS_AUDIO_OPTIONS:
             case RGUI_SETTINGS_DISK_OPTIONS:
+            case RGUI_SETTINGS_SAVE_CONFIG:
 #ifdef HAVE_SHADER_MANAGER
             case RGUI_SETTINGS_SHADER_OPTIONS:
             case RGUI_SETTINGS_SHADER_PRESET:
@@ -1124,6 +1125,10 @@ static int rgui_settings_toggle_setting(rgui_handle_t *rgui, unsigned setting, r
             return -1;
          }
          break;
+      case RGUI_SETTINGS_SAVE_CONFIG:
+         if (action == RGUI_ACTION_OK)
+            menu_save_new_config();
+         break;
 #ifdef HAVE_OVERLAY
       case RGUI_SETTINGS_OVERLAY_PRESET:
          switch (action)
@@ -1510,6 +1515,7 @@ static void rgui_settings_populate_entries(rgui_handle_t *rgui)
    rgui_list_push(rgui->selection_buf, "Restart RetroArch", RGUI_SETTINGS_RESTART_EMULATOR, 0);
 #endif
    rgui_list_push(rgui->selection_buf, "RetroArch Config", RGUI_SETTINGS_CONFIG, 0);
+   rgui_list_push(rgui->selection_buf, "Save New Config", RGUI_SETTINGS_SAVE_CONFIG, 0);
    rgui_list_push(rgui->selection_buf, "Quit RetroArch", RGUI_SETTINGS_QUIT_RARCH, 0);
 }
 

settings.c

@@ -1103,10 +1103,9 @@ bool config_save_file(const char *path)
       config_set_int(conf, cfg, g_settings.input.libretro_device[i]);
    }
 
-   config_file_write(conf, path);  
+   bool ret = config_file_write(conf, path);
    config_file_free(conf);
-
-   return true;
+   return ret;
 }
 
 bool config_save_keybinds(const char *path)