Implement bind_files function and add some handling to bind_directori…

…es to prevent errors in unpatched ports.

PortMaster/funcs.txt

@@ -41,22 +41,49 @@ fi
 
 bind_directories() {
     # Usage: bind_directories ~/.config/StardewValley $GAMEDIR/savedata
-    # 
+    #
     # Reason: some platforms (batocera) use exfat for the home directory, so we can't use symbolic links
     # We then instead use bind mount, however retrodeck cannot bind mount because it does not run in root.
     #
     if [ "$PM_CAN_MOUNT" = "Y" ]; then
-        [[ -L "$1" ]] && rm -f "$1"
-        mkdir -p "$1"
-        $ESUDO umount "$1"
-        $ESUDO mount --bind "$2" "$1"
+        [[ -L "$1" ]] && rm -f "$1" && echo "removed previous symlink $1"
+        # Ensure the directory exists before attempting the bind mount
+        if [ -d "$2" ]; then
+            mkdir -p "$1"
+            $ESUDO umount "$1"
+            $ESUDO mount --bind "$2" "$1" && echo "successful bind mount from $2 to $1"
+        else
+            echo "no directory found at $2"
+        fi
     else
         # RetroDECK cant use bind mount without root.
         rm -f "$1"
         ln -sfv "$2" "$1"
     fi
 }
 
+bind_files() {
+    # Usage: bind_files ~/.config_file $GAMEDIR/conf/.config_file
+    #
+    # Reason: some platforms (batocera) use exfat for the home directory, so we can't use symbolic links
+    # We then instead use bind mount, however retrodeck cannot bind mount because it does not run in root.
+    #
+    if [ "$PM_CAN_MOUNT" = "Y" ]; then
+        [[ -L "$1" ]] && rm -f "$1" && echo "removed previous symlink $1"
+        # Ensure the file exists before attempting the bind mount
+        if [ -f "$2" ]; then
+            touch "$1"
+            $ESUDO umount "$1"
+            $ESUDO mount --bind "$2" "$1" && echo "successful bind mount from $2 to $1"
+        else
+            echo "no file found at $2"
+        fi
+    else
+        # RetroDECK cant use bind mount without root.
+        rm -f "$1"
+        ln -sfv "$2" "$1"
+    fi
+}
 
 pm_begin_splash() {
     # Usage: pm_begin_splash