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tools/run.js

@@ -0,0 +1,27 @@
+export function format(time) {
+  return time.toTimeString().replace(/.*(\d{2}:\d{2}:\d{2}).*/, '$1');
+}
+
+function run(fn, options) {
+  const task = typeof fn.default === 'undefined' ? fn : fn.default;
+  const start = new Date();
+  console.log(
+    `[${format(start)}] Starting '${task.name}${options ? ` (${options})` : ''}'...`,
+  );
+  return task(options).then(resolution => {
+    const end = new Date();
+    const time = end.getTime() - start.getTime();
+    console.log(
+      `[${format(end)}] Finished '${task.name}${options ? ` (${options})` : ''}' after ${time} ms`,
+    );
+    return resolution;
+  });
+}
+
+if (require.main === module && process.argv.length > 2) {
+  delete require.cache[__filename]; // eslint-disable-line no-underscore-dangle
+  const module = require(`./${process.argv[2]}.js`).default; // eslint-disable-line import/no-dynamic-require
+  run(module).catch(err => { console.error(err.stack); process.exit(1); });
+}
+
+export default run;