'use strict';
/**
* @alias systat
* @member {Object} systat
* @description Example of command line hook linked to non regex command /systat
* @memberOf hooks/examples
*/
const Promise = require('promise');
const os = require('os');
const memory_command = 'free | grep Mem | awk \'{print $3/$2 * 100.0}\'';
module.exports = {
command: 'systat',
action: function (message, service, matches) {
return new Promise(function (resolve, reject) {
let cpus = os.cpus();
let out = '';
let total = 0;
let used = 0;
for (var i = 0, len = cpus.length; i < len; i++) {
var cpu = cpus[i];
for (let type in cpu.times) {
total += cpu.times[type];
}
used += cpu.times['user'] + cpu.times['nice'] + cpu.times['sys'];
}
out += 'CPUs (' + cpus.length + '): ' + Math.round(100 * used / total) + '%\n';
const exec = require('child_process').exec;
exec(memory_command, {}, function (error, stdout, stderr) {
if (error) {
return reject(reject);
}
let stderr_str = stderr.toString('utf8');
if (!stderr_str) {
out += 'Memory Usage: ' + (Math.round(stdout.toString('utf8') * 10) / 10) + '%\n';
}
resolve(out);
});
});
},
description: 'Example of command line hook linked to non regex command \/systat.'
};