convert to typescript

src/cli/index.ts

@@ -0,0 +1,28 @@
+import { build, export as exporter } from 'sapper/core.js';
+import { dest, dev, entry, src } from '../config';
+
+const cmd = process.argv[2];
+const start = Date.now();
+
+if (cmd === 'build') {
+	build({ dest, dev, entry, src })
+		.then(() => {
+			const elapsed = Date.now() - start;
+			console.error(`built in ${elapsed}ms`); // TODO beautify this, e.g. 'built in 4.7 seconds'
+		})
+		.catch(err => {
+			console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
+		});
+} else if (cmd === 'export') {
+	const start = Date.now();
+
+	build({ dest, dev, entry, src })
+		.then(() => exporter({ src, dest }))
+		.then(() => {
+			const elapsed = Date.now() - start;
+			console.error(`extracted in ${elapsed}ms`); // TODO beautify this, e.g. 'built in 4.7 seconds'
+		})
+		.catch(err => {
+			console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
+		});
+}