runtime-shell/commands/ping.js

Some useful shell commands for runtime.js

/*
'use strict';

const shellUtil = require('../util');
const dns = require('dns');
const url = require('url');

module.exports = function(runtime) {
  runtime.shell.setCommand('ping', function(args, env, cb) {
    var argarr = shellUtil.parse(args);
    argarr[0] = argarr[0] || 'http://www.google.com/';
    dns.lookup(url.parse(argarr[0]).host, function(err, address, iptype) {
      if (err) {
        env.stdio.writeError('error: cannot load', argarr[0] + '\n');
        env.stdio.writeError(err);
        return cb(1);
      }

      const times = parseInt(argarr[1]) || 1;
      for (var i = 0; i < times; i++) {
        http.get(argarr[0], function(res) {
          env.stdio.writeLine('statcode', res.statusCode, 'from', url.parse(argarr[0]).host, '(' + address + ')');
          if (i == times) {
            cb(0);
          }
        });
      }
    });
  });
};
*/