PsychOSPackages/makepkg.lua

98 lines
2.3 KiB
Lua

local serial = require "serialization"
local w, lzss = pcall(require,"lzss")
if not w then lzss = nil end
local tArgs = {...}
local fsnames = {"lfs","luafilesystem","filesystem"}
local w, fs
for k,v in pairs(fsnames) do
w,fs = pcall(require,v)
if w then break end
end
if not w then error("luafilesystem not detected") end
local function cint(n,l)
local t={}
for i = 0, 7 do
t[i+1] = (n >> (i * 8)) & 0xFF
end
return string.reverse(string.char(table.unpack(t)):sub(1,l))
end
local function genHeader(fname,len)
return string.format("%s%s%s",cint(fname:len(),2),fname,cint(len,2))
end
local function fnormalize(path)
local rt = {}
for segment in path:gmatch("[^/]+") do
if segment ~= "." and segment ~= ".." then
rt[#rt+1] = segment
end
end
return table.concat(rt,"/")
end
local dirs, files = {tArgs[1]},{}
for _,dir in ipairs(dirs) do
for file in fs.dir(dir) do
if file == "." or file == ".." then
elseif fs.attributes(dir.."/"..file).mode == "directory" then
dirs[#dirs+1] = dir.."/"..file
elseif file ~= "package.cfg" then
files[#files+1] = dir.."/"..file
end
end
end
local f = io.open(tArgs[1].."/package.cfg","rb")
if not f then error("no package.cfg in source") end
local pkginfo = serial.unserialize(f:read("*a"))
f:close()
local outpath = tArgs[2].."/"..tArgs[1]..".mtar"
local of = io.open(outpath,"wb")
for k,v in ipairs(files) do
local f = io.open(v,"rb")
if f then
local content = f:read("*a")
f:close()
of:write(genHeader(fnormalize(v:sub(tArgs[1]:len()+1)),content:len()))
of:write(content)
end
end
of:write(string.char(0):rep(2))
of:close()
if lzss then
print("Compressing "..outpath.." to "..outpath..".lss")
local f = io.open(outpath,"rb")
local of = io.open(outpath..".lss","wb")
while true do
local b = f:read(4096)
if not b or b:len() < 1 then break end
b = lzss.compress(b)
of:write(b)
end
f:close()
of:close()
outpath = outpath .. ".lss"
pkginfo.compressed = true
end
pkginfo.filename = fnormalize(outpath:sub(tArgs[2]:len()+1))
pkginfo.version = tArgs[3]
local repo = {}
local f = io.open(tArgs[2].."/packages.cfg","rb")
if f then
repo = serial.unserialize(f:read("*a")) or {}
f:close()
end
repo[tArgs[1]] = pkginfo
local f = io.open(tArgs[2].."/packages.cfg","wb")
if f then
f:write(serial.serialize(repo))
f:close()
end