function fs_enumerate(directory)
	local i, t, popen = 0, {}, io.popen
	local pfile = popen('cd .. && ls -p "'..directory..'"')
	for filename in pfile:lines() do
		i = i + 1
		t[i] = filename
	end
	pfile:close()
	return t
end

function output_source_files(dir, extension)
	local files = fs_enumerate(dir)
	for _, file in ipairs(files) do
	if file:sub(-1) == '/' then
		output_source_files(dir .. file, extension)
	elseif file:sub(-#extension) == extension then
		io.write('  \'' .. dir .. file .. '\',\n')
	end
	end
end

local OUTPUT_PATH = "../meson.build"
io.output(OUTPUT_PATH)
io.write('project(\'level_editor\', [\'vala\', \'c\'])\n')
io.write('deps = [\n')
io.write('  dependency(\'gdk-3.0\'),\n')
io.write('  dependency(\'gee-0.8\'),\n')
io.write('  dependency(\'gio-2.0\'),\n')
io.write('  dependency(\'glib-2.0\'),\n')
io.write('  dependency(\'gtk+-3.0\')\n')
io.write(']\n')
io.write('src = files([\n')

output_source_files('./tools/', '.vala')

io.write('])\n')
io.write('\n')
io.write('gnome = import(\'gnome\')\n')
io.write('\n')
io.write('resources_xml = files(\'tools\\\\level_editor\\\\resources\\\\resources.gresource.xml\')\n')
io.write('resources = gnome.compile_resources(\'resources\', resources_xml, source_dir: \'.\\\\tools\\\\level_editor\\\\resources\\\\\')\n')
io.write('\n')
io.write('vala_args = [ \n')
io.write('  \'--target-glib=2.38\', # minimum glib version required for composite templates\n')
io.write('  \'--define=CROWN_PLATFORM_WINDOWS\',\n')
io.write('  \'--gresources\', resources_xml,\n')
io.write(']\n')
io.write('\n')
io.write('executable(\'app\',\n')
io.write('           [src, resources],\n')
io.write('           dependencies: deps,\n')
io.write('           vala_args: [vala_args])\n')
io.close()