/usr/lib/nodejs/mithril/bundler/cli.js is in node-mithril 1.1.6-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49  | "use strict"
var fs = require("fs");
var bundle = require("./bundle")
var minify = require("./minify")
var aliases = {o: "output", m: "minify", w: "watch", a: "aggressive"}
var params = {}
var args = process.argv.slice(2), command = null
for (var i = 0; i < args.length; i++) {
	if (args[i][0] === '"') args[i] = JSON.parse(args[i])
	if (args[i][0] === "-") {
		if (command != null) add(true)
		command = args[i].replace(/\-+/g, "")
	}
	else if (command != null) add(args[i])
	else params.input = args[i]
}
if (command != null) add(true)
function add(value) {
	params[aliases[command] || command] = value
	command = null
}
bundle(params.input, params.output, {watch: params.watch})
if (params.minify) {
	minify(params.output, params.output, {watch: params.watch, advanced: params.aggressive}, function(stats) {
		var readme, kb;
		function format(n) {
			return n.toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,")
		}
		console.log("Original size: " + format(stats.originalGzipSize) + " bytes gzipped (" + format(stats.originalSize) + " bytes uncompressed)")
		console.log("Compiled size: " + format(stats.compressedGzipSize) + " bytes gzipped (" + format(stats.compressedSize) + " bytes uncompressed)")
		readme = fs.readFileSync("./README.md", "utf8")
		kb = stats.compressedGzipSize / 1024
		fs.writeFileSync("./README.md",
			readme.replace(
				/(<!-- size -->)(.+?)(<!-- \/size -->)/,
				"$1" + (kb % 1 ? kb.toFixed(2) : kb) + " KB$3"
			)
		)
	})
}
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