add node-cron type definition file

cron/cron-tests.ts

@@ -0,0 +1,66 @@
+/// <reference path="cron.d.ts" />
+
+import cron = require('cron');
+var CronJob = cron.CronJob;
+var CronTime = cron.CronTime;
+
+var timeZone = 'America/Los_Angeles';
+
+// Usage (basic cron usage):
+new CronJob('* * * * * *', () => {
+  console.log('You will see this message every second');
+}, null, true, 'America/Los_Angeles');
+
+// Another cron example
+var job = new CronJob('00 30 11 * * 1-5', () => {
+  /*
+   * Runs every weekday (Monday through Friday)
+   * at 11:30:00 AM. It does not run on Saturday
+   * or Sunday.
+   */
+  }, () => {
+    /* This function is executed when the job stops */
+  },
+  true, /* Start the job right now */
+  timeZone /* Time zone of this job. */
+);
+
+// Another example with Date
+var job = new CronJob(new Date(), () => {
+  /* runs once at the specified date. */
+  }, () => {
+    /* This function is executed when the job stops */
+  },
+  true, /* Start the job right now */
+  timeZone /* Time zone of this job. */
+);
+
+// For good measure
+var job = new CronJob({
+  cronTime: '00 30 11 * * 1-5',
+  onTick: () => {
+    /*
+     * Runs every weekday (Monday through Friday)
+     * at 11:30:00 AM. It does not run on Saturday
+     * or Sunday.
+     */
+  },
+  start: false,
+  timeZone: 'America/Los_Angeles'
+});
+job.start();
+
+// How to check if a cron pattern is valid:
+try {
+  new CronJob('invalid cron pattern', () => {
+    console.log('this should not be printed');
+  })
+} catch(ex) {
+  console.log("cron pattern not valid");
+}
+
+
+// Check cronTime fomat
+new CronTime('* * * * * *');
+new CronTime(new Date());
+

cron/cron.d.ts

@@ -0,0 +1,27 @@
+// Type definitions for cron 1.0.9
+// Project: https://www.npmjs.com/package/cron
+// Definitions by: Hiroki Horiuchi <https://github.com/horiuchi>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+declare module "cron" {
+
+  interface CronJobStatic {
+    new(cronTime: string|Date, onTick: () => void, onComplete?: () => void, start?: boolean, timezone?: string, context?: any): CronJob;
+    new(options: {
+      cronTime: string|Date; onTick: () => void; onComplete?: () => void; start?: boolean; timezone?: string; context?: any
+    }): CronJob;
+  }
+  interface CronJob {
+    start(): void;
+    stop(): void;
+  }
+  export var CronJob: CronJobStatic;
+
+  interface CronTimeStatic {
+    new(time: string|Date): CronTime;
+  }
+  interface CronTime {}
+  export var CronTime: CronTimeStatic;
+
+}
+