Hook to force commits to have an existant issue number related

pre-commit.rb

#!/usr/bin/env ruby
require 'net/http'
require 'json'

message_file = ARGV[0]
message      = File.read(message_file)
$regex       = /#(\d+)/

def get_issues
  uri = URI('github.com/user/repo/issues')
  JSON.parse(Net::HTTP.get(uri))
end

if $regex.match message
  number = message[/#(\d+)/]
  number = number[/(\d+)/]
  get_issues.each do |issue|
    exit 0 if number == issue['number'].to_s
  end
  puts "[POLICY] BAD FORMATTED MESSAGE: ISSUE NUMBER DOES NOT EXIST"
  exit 1
else
  puts "[POLICY] BAD FORMATTED MESSAGE: NEEDS TO REFERENCE AN ISSUE"
  exit 1
end