See GitHub API rate limit information in a useful way

github_rate.rb

# Return GitHub API rate information in JSON format
# GitHub Personal Access Token expected in ~/.githubtoken
# I'd pipe this into jq for nicer viewing

require 'http'
require 'json'

TOKEN = File.read(ENV['HOME'] + "/.githubtoken").strip

res = HTTP["Authorization" => "token #{TOKEN}"].get("https://api.github.com/rate_limit")
rates = JSON.parse(res.to_s)

def convert_epoch_to_seconds_remaining(r)
  r["resets_in_seconds"] = (Time.at(r["reset"].to_i) - Time.now).ceil if r["reset"]
  r.values.each { |rr| convert_epoch_to_seconds_remaining(rr) if rr.is_a?(Hash) }
end

convert_epoch_to_seconds_remaining(rates)

puts rates.to_json