project bootstrap

node_modules/detect-port-alt/bin/detect-port

@@ -0,0 +1,56 @@
+#!/usr/bin/env node
+
+'use strict';
+
+const pkg = require('../package');
+
+const args = process.argv.slice(2);
+const arg_0 = args[0];
+
+if (!!~['-v', '--version'].indexOf(arg_0)) {
+  console.log(pkg.version);
+  process.exit(0);
+}
+
+const port = parseInt(arg_0, 10);
+
+const main = require('..');
+
+if (!arg_0) {
+  const random = Math.floor(9000 + Math.random() * (65535 - 9000));
+
+  main(random, (err, port) => {
+    if (err) {
+      console.log(`get available port failed with ${err}`);
+    }
+    console.log(`get available port ${port} randomly`);
+  });
+} else if (isNaN(port)) {
+  console.log();
+  console.log(`  \u001b[37m${pkg.description}\u001b[0m`);
+  console.log();
+  console.log('  Usage:');
+  console.log();
+  console.log(`    ${pkg.name} [port]`);
+  console.log();
+  console.log('  Options:');
+  console.log();
+  console.log('    -v, --version    show version and exit');
+  console.log('    -h, --help       output usage information');
+  console.log();
+  console.log('  Further help:');
+  console.log();
+  console.log(`    ${pkg.homepage}`);
+  console.log();
+} else {
+  main(port, (err, _port) => {
+    if (err) {
+      console.log(`get available port failed with ${err}`);
+    }
+
+    if (port !== _port) {
+      console.log(`port ${port} was occupied`);
+    }
+    console.log(`get available port ${_port}`);
+  });
+}