LÖVE

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-- Hack by jack0088
-- Get access to filesystem outside the love2d sandbox.
-- Known issues:
-- 		Not supported: Alias, dead Symlink

Filesystem = {}

function Filesystem.getDirectoryItems(dir, wanted_type, wanted_file, ram)
	dir = tostring(dir) or os.getenv("HOME") --define entrypoint
	dir = dir:gsub("\\?%s", "\\ "):gsub([[["']*]], "") --handle (already escaped) whitespaces!
	if #dir > 1 and dir:sub(#dir) ~= "/" then dir = dir .. "/" end --end always with slash
	
	local files = ram or {}
	
    for file in io.popen("ls -F " .. dir):lines() do
		if file ~= dir then
			local file_indicator = file:sub(#file)
			local file_type = Filesystem.type(file)
			local file_name = file:sub(1, #file-1)
			
			-- symlink
			if file_indicator == "@" then
				if (not wanted_file) or (wanted_file and wanted_file == file_name) then
					for link in io.popen("readlink " .. dir .. file_name):lines() do
						local link_parent_dir = link:match(".*/")
						local pre = link_parent_dir:sub(1, 3)
						
						if pre:find("%.%..") then
							link_parent_dir = dir:sub(1, #dir-1):match(".*/") .. link_parent_dir:sub(4)
						elseif not pre:find("/") then
							link_parent_dir = dir .. link_parent_dir
						end
						
						Filesystem.getDirectoryItems(link_parent_dir, wanted_type, file_name, files)
					end
				end
			else
				if	-- folder
					((file_type == "folder") and (not wanted_type or wanted_type == "folder"))
				or	-- file
					((file_type == "file") and (not wanted_type or wanted_type == "file"))
				then
					-- .exe and .app file
					if (file_indicator == "*") or (file_type == "folder" and file:find(".app")) then file = file_name end
					
					if not wanted_file or (wanted_file and file:find(wanted_file)) then
						table.insert(files, dir .. file)
					end
				end
			end
		end
    end
	
    return files
end

function Filesystem.updated(sec)
	if not Filesystem._tmr then
		Filesystem._tmr = love.timer.getTime()
		return true
	end
	
	local time = love.timer.getTime()
	
	if time >= Filesystem._tmr + (sec or 1) then
		Filesystem._tmr = nil
		return true
	end
	
	return false
end

function Filesystem.type(file)
	return file:sub(#file) == "/" and "folder" or "file"
end

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require "Filesystem"

function love.draw()
    if Filesystem.updated(3) then --gets called every x seconds, in this case, each three sec.
        files = Filesystem.getDirectoryItems("/", "folder") --lists (/update) all folders inside system's root
     
        --do with files what ever you need... loop through them and display or whatever...
    end
end

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function love.load()
    files = Filesystem.getDirectoryItems() --lists all files of type "file" and "folder", inside the "/" root directory
end