build.js

import fs       from "node:fs"
import path     from "node:path"
import url      from "node:url"
import ts       from "typescript"
import * as esb from "esbuild"

const dirname       = path.dirname(url.fileURLToPath(import.meta.url))
const file_js_path  = path.join(dirname, "smd.js")
const file_dts_path = path.join(dirname, "smd.d.ts")
const file_map_path = path.join(dirname, "smd.d.ts.map")

/** @type {ts.CompilerOptions} */
const ts_options = {
	allowJs             : true,
	checkJs             : true,
	skipLibCheck        : false,
	maxNodeModuleJsDepth: 1,
	emitDeclarationOnly : true,
	noEmit              : false,
	noEmitOnError       : false,
	declaration         : true,
	declarationMap	    : true,
}

function main() {
	const begin = performance.now()

	/* Build minified version for the CDNs */
	esb.build({
		entryPoints: ["smd_min_entry.js"],
		format: "esm",
		platform: "browser",
		bundle: true,
		minify: true,
		drop: ["console", "debugger"],
		outfile: "smd.min.js",
	}).then(() => {
		console.log(`MIN complete at ${Math.ceil(performance.now() - begin)}ms`)
	})
	
	
	/* DTS */
	// Remove old .d.ts files
	if (fs.existsSync(file_dts_path)) fs.unlinkSync(file_dts_path)
	if (fs.existsSync(file_map_path)) fs.unlinkSync(file_map_path)
	
	// Emit d.ts files
	const program = ts.createProgram([file_js_path], ts_options)
	program.emit()
	console.log(`DTS complete at ${Math.ceil(performance.now() - begin)}ms`)
}


main()