129 lines
2.3 KiB
Lua
129 lines
2.3 KiB
Lua
-- Initialization
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log = ""
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oldprint=print
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function print(...)
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oldprint(...)
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logline = ""
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if #{...} > 0 then
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if #{...} > 1 then
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for k,v in ipairs({...}) do
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logline = logline .. "\t" .. tostring(v)
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end
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else
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tA = {...}
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logline = tostring(tA[1])
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end
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end
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log = (log .. logline .. "\n"):sub(1,-1)
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end
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print("Initializing and reading configuration")
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ts={}
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tA = {...}
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ss=""
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cfg={}
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f=io.open("build.cfg","rb")
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repeat
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line = f:read("*l")
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if line ~= nil then
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w={}
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for wo in line:gmatch("%S+") do table.insert(w, wo) end
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cfg[w[1]] = w[2]
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end
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until line == nil or line == ""
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if cfg.opath == nil then cfg.opath = "kernel.lua" end
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print()
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-- Module list
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print("Reading modules to load")
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tm={}
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f=io.open("modules.cfg","rb")
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function nl()
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return f:read("*l")
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end
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for line in nl do
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print(" - "..line)
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table.insert(tm,line)
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end
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f:close()
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print(tostring(#tm).." modules to load.\n")
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-- Loading modules
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print("Loading modules")
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for k,v in ipairs(tm) do
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print(" - "..v.." - modules/"..v)
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f=io.open("modules/"..v,"rb")
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if cfg.optomise == "yes" then
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data = f:read("*a")
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else
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data = "--"..v.."\n"..f:read("*a")
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end
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table.insert(ts,data)
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f:close()
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end
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print(tostring(#tm).." modules loaded.\n")
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-- Generate source
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print("Generating source")
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for k,v in pairs(ts) do
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ss=ss..v
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io.write(".")
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end
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print()
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-- Optomise for space
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if cfg.optomise == "yes" then
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print("Optomising source")
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sl=tostring(ss:len())
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no=0
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replacements={
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{" "," "},
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{"\n ","\n"},
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{"\n\n","\n"},
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{" == ","=="},
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{" ~= ","~="},
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{" >= ",">="},
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{" <= ","<="},
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{" > ",">"},
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{" < ","<"},
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{" = ","="},
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{", ",","},
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{" %+ ","+"},
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{" %- ","-"},
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{" %/ ","/"},
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{" %* ","*"},
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{" \n","\n"},
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}
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for k,v in ipairs(replacements) do
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while ss:find(v[1]) ~= nil do
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ss=ss:gsub(v[1],v[2])
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io.write(".")
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no=no+1
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end
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end
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print("\nBefore: "..sl.."\nAfter: "..tostring(ss:len()).."\n"..tostring(no).." optomisations made.\n")
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end
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-- Output
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print("Outputting to "..cfg.opath)
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f=io.open(cfg.opath,"wb")
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f:write(ss)
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f:close()
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print("Total size: "..tostring(ss:len()).."\n")
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-- Check syntax
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if cfg.test == "yes" then
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print("Checking for errors...")
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err={pcall(load,ss)}
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if err[1] ~= true then
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print(table.unpack(err))
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else
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print("No errors detected by load()")
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end
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end
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-- Write log
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if cfg.log == "yes" then
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f=io.open("build.log","wb")
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f:write(log)
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f:close()
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end
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