PHP script to parse a TIC 80 lua file and replace requires() with the contents of the files required. Use before saving as .tic.

merge-requires.php

<?php

$strRoot = "C:\\Users\\Neil\\AppData\\Roaming\\com.nesbox.tic\\TIC-80\\";

$strMain = file_get_contents($argv[1]);
if (preg_match_all('/^require \"(.+?)\"$/m', $strMain, $arrMatches)) {
	foreach ($arrMatches[1] as $i => $strFile) {
		$strPath = $strRoot . '\\' . str_replace(["carts/", "\/"], ["", "\\"], $strFile) . ".lua";
		$strRequire = file_get_contents($strPath);
		$strRequire = trim($strRequire) . "\n";
		$strRequire = "-- {$strFile}.lua\n\n" . $strRequire;
		$strMain = str_replace(
			$arrMatches[0][$i],
			$strRequire,
			$strMain
		);
	}
	file_put_contents(str_replace(".lua", ".merged.lua", $argv[1]), $strMain);
}

To clarify:

• Executes using > php merge-requires.php foo.lua
• Finds any require "bar" lines in foo.lua, and replaces them with the contents of "bar.lua".
• I have a symbolic link called "carts" in the folder that holds tic80.exe that targets "C:\Users\Neil\AppData\Roaming\com.nesbox.tic\TIC-80", where all my lua files are (in various subfolders). This allow the require() to work. Line 8 may need some changing if yours is different.
• Will create foo.meged.lua in the same folder as foo.lua