New feature: Test mode

test mode allows testing .sh files to make sure they work

boot/grub/loopback.cfg

@@ -0,0 +1 @@
+linux (${root})/grubfm.elf

boot/grubfm/settings.sh

@@ -131,4 +131,7 @@ menuentry $"Enable serial terminal" --class ms-dos {
   terminal_output --append serial;
 }
 
+menuentry "Test mode" --class settings {
+  lua ${PREFIX}/testmode.lua
+
 source ${prefix}/global.sh;

boot/grubfm/testmode.lua

@@ -0,0 +1,72 @@
+local sh_list =
+{
+    distro/alt.sh
+    distro/andmenu.sh
+    distro/android.sh
+    distro/antix.sh
+    distro/archlinux.sh
+    distro/austrumi.sh
+    distro/blackarch.sh
+    distro/calculate.sh
+    distro/cdlinux.sh
+    distro/chakra.sh
+    distro/debian.sh
+    distro/debinstmenu.sh
+    distro/debmenu.sh
+    distro/dsl-old.sh
+    distro/fedora.sh
+    distro/freebsd.sh
+    distro/gentoo.sh
+    distro/hyper.sh
+    distro/ipfire.sh
+    distro/kaos.sh
+    distro/knoppix.sh
+    distro/krd.sh
+    distro/liveslack.sh
+    distro/netbsd.sh
+    distro/openbsd.sh
+    distro/parabola.sh
+    distro/pclinuxos.sh
+    distro/pentoo.sh
+    distro/plop.sh
+    distro/pmagic.sh
+    distro/porteus.sh
+    distro/proxmox.sh
+    distro/sabayon.sh
+    distro/siduction.sh
+    distro/slax.sh
+    distro/smartos.sh
+    distro/suse64.sh
+    distro/sysrcd.sh
+    distro/sysresccd.sh
+    distro/tinycore.sh
+    distro/ubuntu.sh
+    distro/veket.sh
+    distro/wifislax.sh
+    distro/win.sh
+    distro/winxp.sh
+    func.sh
+    global.sh
+    hwinfo.sh
+    init.sh
+    lang.sh
+    netboot.sh
+    osdetect.sh
+    power.sh
+    pxeinit.sh
+    search.sh
+    settings.sh
+    util.sh
+}
+
+local function search_sh (sh_table)
+  local j = 0
+  for i, wim in ipairs (sh_list) do
+    if (grub.file_exist (sh)) then
+      print ("found .sh file " .. sh)
+      j = j + 1
+      sh_table[j] = sh
+    end
+  end
+  return j
+end