Fix ROM history being deleted when ROM includes ;.

Using ';' as a delimiter in history file was a mistake as it breaks
when files have this file included. Instead, split on newline.

To avoid reading broken history files, the history file path is
changed.

Also add game_history_path/size to config.

config.def.h

@@ -402,6 +402,9 @@ static const bool network_cmd_enable = false;
 static const uint16_t network_cmd_port = 55355;
 static const bool stdin_cmd_enable = false;
 
+// Number of entries that will be kept in ROM history file.
+static const unsigned game_history_size = 100;
+
 
 ////////////////////
 // Keybinds, Joypad

frontend/menu/history.c

@@ -106,19 +106,10 @@ static void rom_history_write_file(rom_history_t *hist)
 
    for (size_t i = 0; i < hist->size; i++)
    {
-      if (hist->entries[i].path)
-      {
-         fprintf(file, "%s;%s;%s\n",
-               hist->entries[i].path,
-               hist->entries[i].core_path,
-               hist->entries[i].core_name);
-      }
-      else
-      {
-         fprintf(file, "%s;%s\n",
-               hist->entries[i].core_path,
-               hist->entries[i].core_name);
-      }
+      fprintf(file, "%s\n%s\n%s\n",
+            hist->entries[i].path ? hist->entries[i].path : "",
+            hist->entries[i].core_path,
+            hist->entries[i].core_name);
    }
 
    fclose(file);
@@ -151,43 +142,36 @@ static bool rom_history_read_file(rom_history_t *hist, const char *path)
    if (!file)
       return true;
    
-   char buf[PATH_MAX * 3];
+   char buf[3][PATH_MAX];
+   struct rom_history_entry *entry = NULL;
+   char *last = NULL;
 
-   for (hist->size = 0;
-         hist->size < hist->cap && fgets(buf, sizeof(buf), file);
-         hist->size++)
+   for (hist->size = 0; hist->size < hist->cap; hist->size++)
    {
-      char *last = buf + strlen(buf) - 1;
-      if (*last == '\n')
-         *last = '\0';
-
-      struct string_list *list = string_split(buf, ";");
-      if (!list)
-         break;
-
-      if (list->size < 2 || list->size > 3)
+      for (unsigned i = 0; i < 3; i++)
       {
-         string_list_free(list);
-         break;
+         *buf[i] = '\0';
+         if (!fgets(buf[i], sizeof(buf[i]), file))
+            goto end;
+
+         last = strrchr(buf[i], '\n');
+         if (last)
+            *last = '\0';
       }
 
-      struct rom_history_entry *entry = &hist->entries[hist->size];
+      entry = &hist->entries[hist->size];
 
-      if (list->size == 3)
-      {
-         entry->path = strdup(list->elems[0].data);
-         entry->core_path = strdup(list->elems[1].data);
-         entry->core_name = strdup(list->elems[2].data);
-      }
-      else if (list->size == 2)
-      {
-         entry->core_path = strdup(list->elems[0].data);
-         entry->core_name = strdup(list->elems[1].data);
-      }
+      if (!*buf[1] || !*buf[2])
+         goto end;
 
-      string_list_free(list);
+
+      if (*buf[0])
+         entry->path = strdup(buf[0]);
+      entry->core_path = strdup(buf[1]);
+      entry->core_name = strdup(buf[2]);
    }
 
+end:
    fclose(file);
    return true;
 }

frontend/menu/menu_common.c

@@ -563,15 +563,19 @@ void menu_init(void)
    shader_manager_init(rgui);
 #endif
 
-   // TODO: Should make history path configurable.
-   // Possibly size as well.
    if (*g_extern.config_path)
    {
       char history_path[PATH_MAX];
-      fill_pathname_resolve_relative(history_path, g_extern.config_path,
-            ".retroarch-history.txt", sizeof(history_path));
+      if (*g_settings.game_history_path)
+         strlcpy(history_path, g_settings.game_history_path, sizeof(history_path));
+      else
+      {
+         fill_pathname_resolve_relative(history_path, g_extern.config_path,
+               ".retroarch-game-history.txt", sizeof(history_path));
+      }
+
       RARCH_LOG("[RGUI]: Opening history: %s.\n", history_path);
-      rgui->history = rom_history_init(history_path, 100);
+      rgui->history = rom_history_init(history_path, g_settings.game_history_size);
    }
 }
 

general.h

@@ -244,6 +244,8 @@ struct settings
    } input;
 
    char core_options_path[PATH_MAX];
+   char game_history_path[PATH_MAX];
+   unsigned game_history_size;
 
    char libretro[PATH_MAX];
    char cheat_database[PATH_MAX];

retroarch.cfg

@@ -25,8 +25,17 @@
 # Path to core options config file.
 # This config file is used to expose core-specific options.
 # It will be written to by RetroArch.
+# A default path will be assigned if not set.
 # core_options_path =
 
+# Path to ROM load history file.
+# RetroArch keeps track of all ROMs loaded in RGUI and from CLI directly for convenient quick loading.
+# A default path will be assigned if not set.
+# game_history_path =
+
+# Number of entries that will be kept in ROM history file.
+# game_history_size = 100
+
 # Sets the "system" directory.
 # Implementations can query for this directory to load BIOSes, system-specific configs, etc.
 # system_directory =

settings.c

@@ -217,6 +217,7 @@ void config_set_defaults(void)
    g_settings.network_cmd_enable   = network_cmd_enable;
    g_settings.network_cmd_port     = network_cmd_port;
    g_settings.stdin_cmd_enable     = stdin_cmd_enable;
+   g_settings.game_history_size    = game_history_size;
 
    rarch_assert(sizeof(g_settings.input.binds[0]) >= sizeof(retro_keybinds_1));
    rarch_assert(sizeof(g_settings.input.binds[1]) >= sizeof(retro_keybinds_rest));
@@ -690,6 +691,9 @@ bool config_load_file(const char *path)
    CONFIG_GET_INT(network_cmd_port, "network_cmd_port");
    CONFIG_GET_BOOL(stdin_cmd_enable, "stdin_cmd_enable");
 
+   CONFIG_GET_PATH(game_history_path, "game_history_path");
+   CONFIG_GET_INT(game_history_size, "game_history_size");
+
    CONFIG_GET_INT(input.turbo_period, "input_turbo_period");
    CONFIG_GET_INT(input.turbo_duty_cycle, "input_duty_cycle");