OSRunner Installer

local git = "https://raw.github.com/MudkipTheEpic/ComputerCraft/master"

local InstallFiles = {
    {"APIs/osrunner", "APIs/osrunner"};
    {"APIs/zip", "APIs/zip"};
    {"Resources/logo", "Resources/logo"};
    {"Resources/main", "Resources/main"};
    {"Boot/startup", "Boot/startup"};
}

local Directories = {
    "APIs";
    "Resources";
    "Boot";
}

local Version = "1.1"

if not http then
    print("You must have http enabled to install OSRunner")
    return
end

local function Download(Link)
    if not http then return false end
    local Res = http.get(Link)
    if not Res then return false end
    local ToR = Res.readAll()
    Res.close()
    return ToR
end

local Vers = Download(git .. "/CurrentVersion/installer")
if Vers ~= Version then
    local Update = Download(git .. "/installer")
    local Fo = fs.open(shell.getRunningProgram(), "w")
    Fo.write(Update)
    Fo.close()
    shell.run(shell.getRunningProgram())
    return
end

for i,v in pairs(Directories) do
    if fs.exists(v) then
        fs.delete(v)
    end
    fs.makeDir(v)
end

for i,v in pairs(InstallFiles) do
    if fs.exists(v[2]) then
        fs.delete(v[2])
    end
    local Res = Download(git .. "/" .. v[1])
    if Res == false then
        print("Unable to download")
        return
    end
    local Fo = fs.open(v[2], "w")
    Fo.write(Res)
    Fo.close()
end