Installer

Here is a premade installer you can add into your script if you want:

This is a visual version, it asks the user if he wants to install basalt.lua (if not found)

--Basalt configurated installer
local filePath = "basalt.lua" --here you can change the file path default: basalt.lua
if not(fs.exists(filePath))then
    local w,h = term.getSize()
    term.clear()
    local _installerWindow = window.create(term.current(),w/2-8,h/2-3,18,6)
    _installerWindow.setBackgroundColor(colors.gray)
    _installerWindow.setTextColor(colors.black)
    _installerWindow.write(" Basalt Installer ")
    _installerWindow.setBackgroundColor(colors.lightGray)
    for line=2,6,1 do
        _installerWindow.setCursorPos(1,line)
        if(line==3)then
            _installerWindow.write(" No Basalt found! ")
        elseif(line==4)then
            _installerWindow.write(" Install it?      ")
        elseif(line==6)then
            _installerWindow.setTextColor(colors.black)
            _installerWindow.setBackgroundColor(colors.gray)
            _installerWindow.write("Install")
            _installerWindow.setBackgroundColor(colors.lightGray)
            _installerWindow.write(string.rep(" ",5))
            _installerWindow.setBackgroundColor(colors.red)
            _installerWindow.write("Cancel")
        else
            _installerWindow.write(string.rep(" ",18))
        end
    end
    _installerWindow.setVisible(true)
    _installerWindow.redraw()
    while(not(fs.exists(filePath))) do
        local event, p1,p2,p3,p4 = os.pullEvent()
        if(event=="mouse_click")then
            if(p3==math.floor(h/2+2))and(p2>=w/2-8)and(p2<=w/2-2)then
                shell.run("wget https://raw.githubusercontent.com/NoryiE/Basalt/master/basalt.lua "..filePath)
                _installerWindow.setVisible(false)
                term.clear()
                break
            end
            if(p3==h/2+2)and(p2<=w/2+9)and(p2>=w/2+4)then
                _installerWindow.clear()
                _installerWindow.setVisible(false)
                term.setCursorPos(1,1)
                term.clear()
                return
            end
        end
    end
    term.setCursorPos(1,1)
    term.clear()
end

local basalt = dofile(filePath) -- here you can change the variablename in any variablename you want default: basalt
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Here is a very basic one which just installs basalt.lua if don't exist:

--Basalt configurated installer
local filePath = "basalt.lua" --here you can change the file path default: basalt.lua
if not(fs.exists(filePath))then
shell.run("wget https://raw.githubusercontent.com/NoryiE/Basalt/master/basalt.lua "..filePath)
end
local basalt = dofile(filePath) -- here you can change the variablename in any variablename you want default: basalt