From 9b367c5dbd29b278115d21a610c7383e1774e75c Mon Sep 17 00:00:00 2001
From: rude <none@none>
Date: Sun, 8 Nov 2009 16:59:18 +0100
Subject: [PATCH] Added a script for converting Lua files to char arrays.

---
 src/scripts/auto.lua | 93 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/scripts/auto.lua

diff --git a/src/scripts/auto.lua b/src/scripts/auto.lua
new file mode 100644
index 000000000..202b6a156
--- /dev/null
+++ b/src/scripts/auto.lua
@@ -0,0 +1,93 @@
+-- Usage:
+-- lua auto.lua <name1> <name2> .. <nameN>
+-- 
+-- Example:
+-- lua auto.lua boot graphics
+
+max_width = 15
+
+function auto(name)
+	
+	local src = name .. ".lua" 
+	local dst = name .. ".lua.h" 
+	local cpp_name = name .. "_lua"
+	
+	-- Read source Lua file
+	local src_file = io.open(src, "rb")
+	local src_data = src_file:read("*a")
+	local src_len = #src_data
+	src_file:close()
+	
+	local lines = {}
+	local line = {}
+	table.insert(lines, line)
+	
+	for i=1,src_len do
+		table.insert(line, string.byte(src_data, i))
+		if math.mod(i, max_width) == 0 then
+			line = {}
+			table.insert(lines, line)
+		end
+	end
+	
+	local src_output = "const char "..cpp_name.."[] = \n{\n"
+		
+	for i,line in ipairs(lines) do
+		local concat = {}
+		for j,b in ipairs(line) do
+			table.insert(concat, string.format("0x%02X,", b))
+		end
+		src_output = src_output .. "\t" .. table.concat(concat, "").."\n"
+	end
+	
+	src_output = src_output .. "};"
+	
+	local include = true
+	
+	-- Read dst
+	local dst_lines = {}
+	for line in io.lines(dst) do
+			
+		if line == "// ["..src.."]" then
+			include = false
+			table.insert(dst_lines, line)
+			table.insert(dst_lines, src_output)
+		end
+		
+		if line == "// [/"..src.."]" then
+			include = true
+		end
+		
+		if include then
+			table.insert(dst_lines, line)
+		end
+	end
+
+	local tmp_data = table.concat(dst_lines, "\n")
+	
+	-- Overwrite the old file only if they are different.
+	local dst_file = io.open(dst, "rb")
+	dst_data = dst_file:read("*a")
+	dst_file:close()
+	
+	if tmp_data == dst_data then
+		print(name .. ": no change")
+	else
+	
+		local dst_file = io.open(dst, "wb")
+		dst_file:write(tmp_data)
+		dst_file:close()
+	
+		print(name .. ": updated")
+	end
+
+end
+
+if #arg == 0 then
+	print("Usage: lua auto.lua <name1> <name2> .. <name3>")
+else
+	for i, v in ipairs(arg) do
+		auto(v)
+	end
+end
+