slack-expire-files v1.0.1

Overview

This comes from https://www.npmjs.com/package/slack-delete-files but I was unable to find a repo for this package I could submit PRs to.

What this does beyond the original module:

• files.delete is a Tier 3 rate limited slack API, meaning only 50+ req/min are allowed. I've added bottleneck to only fire the request every 1s.
• I wanted to run this as something automatable, so I've removed inquirer and switched to the following env vars:
  • SLACK_TOKEN (required) your slack API token
  • SLACK_KEEP_PINNED (default true) keep pinned files
  • SLACK_KEEP_DAYS (default 10) only delete files older than this many days