var fs = require('fs')
var util = require('util')
var logPath = 'upgrade.log'
var logFile = fs.createWriteStream(logPath, { flags: 'a' })
console.log = function() {
logFile.write(util.format.apply(null, arguments) + '
')
process.stdout.write(util.format.apply(null, arguments) + '
')
}
console.error = function() {
logFile.write(util.format.apply(null, arguments) + '
')
process.stderr.write(util.format.apply(null, arguments) + '
')
}