WIN_checkDriveFreeSpace.js

WIN_checkDriveFreeSpace.js

var exec = require('child_process').exec;
var drive = process.argv[2];
var threshold = process.argv[3];
var cmd = 'fsutil volume diskfree ' + drive;
var defaultPercentage = 0.2; // 20%

console.log('checking drive ' + drive + ' free space. running => ' + cmd);

exec(cmd, function(err, stdout, stderr){
    if(err||stderr) return console.log('failure');
    var data = stdout.split(/\r\n|\n\r/);
    var total = parseInt( data[1].split(':')[1].trim() );
    var free = parseInt( data[2].split(':')[1].trim() );

    threshold||( threshold=(total*defaultPercentage) );

    console.log('limit is : ' + threshold + ' . free is : ' + free );

    var state = (threshold>free) ? 'failure' : 'success';
    console.log(state);
});