new handler.lua + base LuaIntro enviroment with a few examples

new handler.lua is just used for LuaIntro, technically it's ready for LuaUI too
but it would break a few widgets (that did dirty things on the old handler), so I want to give games a bit more time to fix those

cont/base/springcontent/CMakeLists.txt

@@ -154,6 +154,32 @@ set(FILES
 	LuaGadgets/colors.h.lua
 	LuaGadgets/setupdefs.lua
 	LuaGadgets/gadgets.lua
+	LuaHandler/config.lua
+	LuaHandler/doc/gpl-2.0.txt
+	LuaHandler/doc/changelog.txt
+	LuaHandler/handler.lua
+	LuaHandler/SystemAddons/watchdog.lua
+	LuaHandler/Utilities/vector.lua
+	LuaHandler/Utilities/setupdefs.lua
+	LuaHandler/Utilities/ctrlpanel.lua
+	LuaHandler/Utilities/keysym.lua
+	LuaHandler/Utilities/list.lua
+	LuaHandler/Utilities/cache.lua
+	LuaHandler/Utilities/colors.lua
+	LuaHandler/Utilities/table.lua
+	LuaHandler/Utilities/savetable.lua
+	LuaHandler/Utilities/VFS_GetFileChecksum.lua
+	LuaHandler/Utilities/utils.lua
+	LuaHandler/Utilities/crashHandler.lua
+	LuaHandler/Utilities/specialCallinHandlers.lua
+	LuaHandler/Utilities/actions.lua
+	LuaHandler/Utilities/addonRevisions.lua
+	LuaIntro/config.lua
+	LuaIntro/main.lua
+	LuaIntro/Addons/bg_logo.lua
+	LuaIntro/Addons/loadprogress.lua
+	LuaIntro/Addons/main.lua
+	LuaIntro/Addons/bg_texture.lua
 )
 
 CreateBaseContentArchive("base" "springcontent.sdz" "${FILES}")

cont/base/springcontent/LuaHandler/SystemAddons/watchdog.lua

@@ -0,0 +1,38 @@
+
+if addon.InGetInfo then
+	return {
+		name      = "Watchdog";
+		desc      = "";
+		version   = 0.1;
+		author    = "jK";
+		date      = "2013";
+		license   = "GNU GPL, v2 or later";
+
+		layer     = math.huge;
+		hidden    = not true; -- don't show in the widget selector
+		api       = true; -- load before all others?
+
+		enabled   = not true; -- loaded by default?
+	}
+end
+
+
+local i=0
+local function hook(event)
+	i = i + 1
+	if ((i % (10^4)) < 1) then
+		i = 0
+		Spring.Echo(Spring.GetGameFrame(), event, debug.getinfo(2).name)
+		Spring.Echo(debug.traceback())
+	end
+end
+
+
+function addon.Initialize()
+	debug.sethook(hook,"r",10^100)
+end
+
+
+function addon.Shutdown()
+	debug.sethook(nil,"r")
+end

cont/base/springcontent/LuaHandler/Utilities/VFS_GetFileChecksum.lua

@@ -0,0 +1,42 @@
+--------------------------------------------------------------------------------
+--------------------------------------------------------------------------------
+--
+--  file:    VFS_GetFileChecksum.lua
+--  brief:
+--  author:  jK
+--
+--  Copyright (C) 2007-2013.
+--  Licensed under the terms of the GNU GPL, v2 or later.
+--
+--------------------------------------------------------------------------------
+--------------------------------------------------------------------------------
+
+if (not VFS.GetFileChecksum) then
+	function VFS.GetFileChecksum(file, _VFSMODE)
+		local data = VFS.LoadFile(file, _VFSMODE)
+		if (data) then
+			local datalen     = data:len()/4 --// 'x/4' cause we use UnpackU32
+			local striplength = 2 * 1024     --// 2kB
+
+			if (striplength >= datalen) then
+				local bytes = VFS.UnpackU32(data,nil,datalen)
+				local checksum = math.bit_xor(0,unpack(bytes))
+				return checksum
+			end
+
+			--// stack is limited, so split up the data
+			local start = 1
+			local crcs = {}
+			repeat
+				local strip = data:sub(start,start+striplength)
+				local bytes = VFS.UnpackU32(strip,nil,strip:len()/4)
+				local checksum = math.bit_xor(0,unpack(bytes))
+				crcs[#crcs+1] = checksum
+				start = start + striplength
+			until (start >= datalen)
+
+			local checksum = math.bit_xor(0,unpack(crcs))
+			return checksum
+		end
+	end
+end