Modpol/modpol_core/storage/store-modules.lua

local lfs
-- checks if lua file system is installed
local using_lfs = pcall(function() lfs = require "lfs" end)

-- switches to legacy module loading if lfs is not available
if using_lfs then

-- loads file names to ignore into a table
function fetch_ignores(module_path)
    local ignore_list = {}
    -- checks if ignore.txt exists
    local f_test = io.open(module_path .. "/ignore.txt", "r")
    if not f_test then return {} end
    
    -- puts each line of ignore.txt into the table
    local f = io.lines(module_path .. "/ignore.txt")
    for line in f do
        table.insert(ignore_list, line)
    end
    return ignore_list
end

-- checks if a string is in a list
function check_list(ignore_list, name) 
    for i, v in ipairs(ignore_list) do
        if v == name then
            return true
        end
    end
    return false
end

modpol.load_modules = function(module_path)
    local loaded = 0
    local ignored = 0
    local ignores = fetch_ignores(module_path)
    for file in lfs.dir(module_path) do
        if file == "." or file == ".." then
            -- ignoring current and parent directory
        else
            -- only looks for .lua files
            if string.sub(file, -4, -1) == ".lua" then
                
                -- doesn't load files in the ignore.txt
                if check_list(ignores, file) then
                    ignored = ignored + 1
                else 
                    dofile(module_path .. "/" .. file)
                    loaded = loaded + 1
                end
            end
        end
    end
    print(loaded .. " modules loaded (" .. ignored .. " ignored)")
end

else
dofile (modpol.topdir .. "/storage/store-modules-legacy.lua")
end