--- /dev/null
+"use strict"
+
+const fs = require("fs")
+const path = require("path")
+const browserify = require("browserify")
+const {minify} = require("terser")
+
+const [sourceFile, outFile, globalName] = process.argv.slice(2)
+
+const json = require(path.join(__dirname, "..", "package.json"))
+const bundleDir = path.join(__dirname, "..", "bundle")
+if (!fs.existsSync(bundleDir)) fs.mkdirSync(bundleDir)
+
+browserify({standalone: globalName})
+ .require(path.join(__dirname, "../dist", sourceFile), {expose: sourceFile})
+ .bundle(saveAndMinify)
+
+async function saveAndMinify(err, buf) {
+ if (err) {
+ console.error("browserify error:", err)
+ process.exit(1)
+ }
+
+ const bundlePath = path.join(bundleDir, outFile)
+ const opts = {
+ ecma: 2018,
+ warnings: true,
+ compress: {
+ pure_getters: true,
+ keep_infinity: true,
+ unsafe_methods: true,
+ },
+ format: {
+ preamble: `/* ${json.name} ${json.version} (${globalName}): ${json.description} */`,
+ },
+ sourceMap: {
+ filename: outFile + ".min.js",
+ url: outFile + ".min.js.map",
+ },
+ }
+
+ const result = await minify(buf.toString(), opts)
+
+ fs.writeFileSync(bundlePath + ".bundle.js", buf)
+ fs.writeFileSync(bundlePath + ".min.js", result.code)
+ fs.writeFileSync(bundlePath + ".min.js.map", result.map)
+ if (result.warnings) result.warnings.forEach((msg) => console.warn("terser.minify warning:", msg))
+}