retroarch: added reset configurations helpers

scriptmodules/emulators/retroarch.sh

@@ -399,3 +399,37 @@ function _set_config_option_retroarch()
         iniSet "$option" "$value"
     fi
 }
+
+# Resets the `retroarch.cfg` for a system
+# @parm system - the system to reset. If empty, reset the global RetroArch config
+function _reset_system_retro_config_retroarch() {
+    local sys="$1"
+    local cfg
+    if [[ -z "$sys" ]]; then
+        printMsgs console "Resetting global RetroArch configuration"
+        cfg="$configdir/all/retroarch.cfg"
+    else
+        printMsgs console "Resetting $sys RetroArch configuration"
+        cfg="$configdir/$sys/retroarch.cfg"
+    fi
+
+    [[ -f "$cfg" ]] && mv "$cfg"  "${cfg}_$(date +"%Y.%m.%d_%H.%M").bak"
+
+    if [[ -f "$cfg.rp-dist" ]]; then
+        copyDefaultConfig "$cfg.rp-dist" "$cfg"
+    else
+        # No .rp-dist available, so it's not the global conf
+        if [[ -n "$sys" ]]; then
+            ensureSystemretroconfig "$sys"
+        fi
+    fi
+}
+
+# Find the core 'library_name' for a libretro core
+# This is used by RetroArch to store core related configurations
+function _get_core_name_retroarch() {
+    local core_file="$1"
+    [[ -z "$core_file" ]] && return ""
+
+    LD_LIBRARY_PATH="$(dirname "$core_file")" python3 "$md_data/get_libretro_name.py" "$core_file"
+}

scriptmodules/emulators/retroarch/get_libretro_name.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+import ctypes
+import sys
+import os.path
+
+class RetroSystemInfo(ctypes.Structure):
+    _fields_ = [
+        ("library_name", ctypes.c_char_p),
+        ("library_version", ctypes.c_char_p),
+        ("valid_extensions", ctypes.c_char_p),
+        ("need_fullpath", ctypes.c_bool),
+        ("block_extract", ctypes.c_bool)
+        ]
+
+retro_info = RetroSystemInfo(b'', b'', b'', False, False)
+
+if sys.argv[1:]:
+    if not os.path.isfile(sys.argv[1]):
+        print('File not found', file=sys.stderr)
+        sys.exit(1)
+
+    core_file_name = sys.argv[1]
+    try:
+        core_file = ctypes.cdll.LoadLibrary(core_file_name)
+        core_file.retro_get_system_info(ctypes.byref(retro_info))
+        print(retro_info.library_name.decode('LATIN1'));
+    except Exception as e:
+        print('Cannot load DSO ' + str(e), file=sys.stderr )
+        sys.exit(2)