chore: Add migration helper functions

This commit is contained in:
Blade Barringer
2016-06-03 06:36:20 -05:00
parent 9828dfea21
commit d8440f8daa
3 changed files with 86 additions and 0 deletions

44
migrations/utils/timer.js Normal file
View File

@@ -0,0 +1,44 @@
'use strict';
let logger = require('./logger');
class Timer {
constructor (options) {
options = options || {};
let warningThreshold = options.minutesWarningThreshold || 10;
this.count = 0;
this._minutesWarningThreshold = warningThreshold * 60;
if (!options.disableAutoStart) this.start();
}
start () {
this._internalTimer = setInterval(() =>{
this.count++;
let shouldWarn = this._minutesWarningThreshold < this.count;
let logStyle = shouldWarn ? 'error' : 'warn';
let dangerMessage = shouldWarn ? 'DANGER: ' : '';
if (this.count % 30 === 0) {
logger[logStyle](`${dangerMessage}Process has been running for`, this.count / 60, 'minutes');
}
}, 1000);
}
stop () {
if (!this._internalTimer) {
throw new Error('Timer has not started');
}
clearInterval(this._internalTimer);
}
get seconds () {
return this.count;
}
get minutes () {
return this.count / 60;
}
}
module.exports = Timer;